Contact us today:
Suhner features several options in its popular multi-spindle lines. Among them is the POLYDrill family, offering a huge selection of multi-spindle heads from the standard range. Fixed and adjustable hole pitches and compact models allow the tool to be used in a variety of situations. In addition, Suhner can supply tool holders from all stock for all popular brands of machining centers.
Drilling capacity is available standard between 0.06-1” (1.5-25 mm). Minimum hole spacing is 0.27” (7 mm), while maximum hole spacing is virtually limitless. Optional tool holders include ER, ST, JT33, Weldon and customized styles. Additional options are axial and radial compensation and custom layout and spacing,
The POLYDrill range includes various multi-spindle heads such as: MH 20/5, MH 20/7, MH 20/10 and MH 20/13 plus multiple spindle heads with 2 adjustable spindles for the utmost in flexibility. The MH 20/5, 20/7, MH 20/10 have maximum speed of 4000 RPM. Maximum drilling capacities are 5 mm, 7 mm and 10 mm, respectively. MH 20/13 has a maximum drilling capacity of 13 mm and a maximum permissible speed of 3000 RPM.
The MHF has up to 10 spindles, a custom made pattern and a fixed spindle distance. Maximum drilling capacity is between 5-13 mm and the speed range is 2500-4000 RPM. MHFP is equipped with 8 spindles with preloaded angular contact bearings for use of carbide tools and fixed spindle distance. Maximum drilling capacity is between 7-20 and the speed range is 0-8000 RPM. The drive system VG 4-8 allows the user to power up to 8 machining units with a single motor with flex shaft power delivery. The speed range for this drive system is between 46-9320 RPM. Flexible drive shafts NA 7/10/12 have a speed range between 12,000-20,000 RPM.
For more information, please contact:
Lee Coleman, National Sales Manager-Machining Division
Suhner Industrial Products Corp.
25 Anderson Road SW
Rome, GA 30161 USA
As expected, the strategic realignment of press manufacturer Schuler resulted in high one-off burdens on earnings in 2019. Due to cyclical effects, new orders were down but performed much better than the German machine tool industry as a whole. Consolidated sales reached € 1.136 billion (prior year: € 1.212 billion). Earnings before interest, taxes and goodwill amortization (EBITA) fell to minus € 75.5 million (plus € 45.3 million).
As part of its future concept, Schuler invested heavily in 2019 in the restructuring of its manufacturing sites; in its focus on core competencies in press construction, automation and service; and in the strengthening of the Group’s innovation capabilities. The company has thus responded to the far-reaching structural changes taking place in the global automotive industry.
“Group’s inner strength permits extensive realignment”
“As a press manufacturer, Schuler is part of the dramatic transformation of the global automobile industry toward electromobility, autonomous vehicles, and digital networking. In 2019, we identified and began to implement the resulting strategic and structural consequences for our company,” stated CEO Domenico Iacovelli at the presentation of the company’s results for fiscal year 2019 in Göppingen, Germany.
“This obviously had a significant impact on earnings. However, there was no alternative. Schuler has the financial strength, the global footprint, and the technological quality to be able to withstand such a one-off burden for the workforce, the balance sheet, and earnings in a market environment characterized by challenging transformation processes and political risks. This makes us confident that we can expand our leading position in metalforming technology in the medium term and thus achieve better results once again,” added Iacovelli.
Normal operating business slightly profitable
Together with the previously announced writedowns on the intangible goodwill of subsidiaries AWEBA and Yadon, the structural measures to realign the company amounting to € 84 million, and other one-off items, Schuler recognized negative special items of almost € 96 million in 2019. Net income after taxes was minus € 121.9 million (plus € 13.5 million). In its normal operating business – in other words EBITA before restructuring costs – Schuler generated a slightly positive result of € 8.5 million in a very challenging business environment.
New orders well above one billion euros
Schuler started its fiscal year 2020 with an order backlog of € 868 (€ 926) million. New orders received in 2019 amounted to € 1.092 (€ 1.255) billion. Europe accounted for the largest share of new orders (€ 562 million, thereof Germany € 293 million), followed by the Americas region (€ 253 million), and China (€ 221 million). With a decline in consolidated new orders of 13 percent in 2019, Schuler performed much better than the German machine tool industry as a whole, which suffered a decline of 22 percent according to the latest figures of sector association VDW.
Schuler CFO Thomas Kamphausen explained that the company had borne the full load of costs incurred by its structural adjustments in 2019. “We do not anticipate any further significant additional special items in 2020. Major cost reductions resulting from our structural adjustments are to be expected as early as 2021,” he said. “As far as our regular business development in 2020 is concerned, it is too early to estimate any effects of the Corona virus disruptions on our revenue and profits at this point.”
At the end of 2019, Schuler’s equity ratio amounted to 35.4 (40.1) percent – and was thus still above the industry average. The number of Group employees fell to 6,276 (6,574). At year-end 2019, headcount in Germany amounted to 3,962 (4,195).
Future concept: focus, localization and innovation
Announced in summer 2019, Schuler’s future concept is based on three main pillars. As the name CORE suggests, Schuler will focus in the future on its core business of building cutting-edge presses, as well as the optimization and digitalization of automation systems for the manufacturing processes of its internationally operating clients in the automotive, industrial, hydraulic and other sectors. In addition, Schuler is systematically strengthening its offerings in the field of service and smart networking.
In 2019, Schuler sold its die construction unit for the production of car body panels to Deutsche Werkzeugbau, a company set up by a strategic investor group. However, its core business of cutting-edge die construction for customers in the metalforming industry was spun off from Schuler Pressen GmbH and established as a separate growth business under the umbrella of the AWEBA Group, a subsidiary of Schuler.
Schuler Innovation Rate 2019 grows to 45.4 percent
The second pillar of Schuler’s future concept is a significant acceleration of new development and time-to-market processes in the field of press construction. The Group’s calculation basis for this objective, the Schuler Innovation Rate (SIR), doubled to 45.4 (prior year: 22.9) percent in 2019. This figure indicates that current product innovations accounted for almost half of all new orders received in Schuler’s main business fields of Automotive, Hydraulic and Industry during the past fiscal year. This enabled Schuler to offset a large part of the reduced demand from the automobile industry for classic forming technology products.
The third pillar of the future concept is a strict focus on localizing production and added value. Together with Group investment Yadon, Schuler China mainly serves customers throughout Asia. Schuler’s Brazilian operations focus in particular on the North and Latin American markets. Germany remains the location for machines and equipment produced for Schuler’s European customers. The high quality standards at all sites create a manufacturing network which can flexibly balance out peaks in demand between the regions. Within Germany, Schuler has pooled its press production in Erfurt and is expanding its home base in Göppingen to become a central innovation site. In the coming months, an additional service center with its own production and assembly capabilities serving customers throughout Germany will also be set up in Göppingen.
Schuler Group at a glance (IFRS)
|New orders||€ million||1,092||1,255.1|
|Order backlog||€ million||867.5||926.1|
|EBITA before restructuring costs||€ million||8.5||58,3|
|Group profit or loss||€ million||-121.9||13.5|
|Balance sheet total||€ million||1,171.6||1,233.9|
|Shareholders’ equity||€ million||415.0||495.0|
|Cash flow from investing activities||€ million||-17.7||-16.4|
|Employees incl. apprentices||6,276||6,574|
About the Schuler Group – www.schulergroup.com
Schuler offers customized first-rate technology in all areas of forming – from the networked press to press shop planning. In addition to press, our product includes automation and software solutions, dies, process know-how and service for the entire metalworking industry. Our customers include automotive manufacturers and suppliers, as well as companies in the forging, household appliance and electronics industries. Press from the Schuler Group mint coins for more than 180 countries. When it comes to the digital transformation of the forming technology, we support our customers worldwide as a supplier of innovative system solutions. In its fiscal year 2019, Schuler posted sales of € 1.136 billion. Founded in 1839 with headquarters in Göppingen, Germany, Schuler AG has about 6,000 employees at production sites in Europe, China and America, as well as service companies in more than 40 countries. The company is majority-owned by the Austrian ANDRITZ Group.
For further information on Schuler Inc., North America, please contact:
All the features and reliability of Suhner technology at an affordable price, whether OEM or end user…MADE IN AMERICA
Suhner introduces the EconoMaster® line of drilling units, affordably priced at under $3000 for the basic unit, in stock for immediate delivery or customizable to suit the particular operation. This economical solution is ideal for multiple materials such as light metal, wood, composite, plastic and foam. Because these units are entirely produced at the Suhner factory in Rome, Georgia, response times for delivery and customized construction are very fast, according to Sales Manager Lee Coleman. “We recognized the need to bring our global technology to a local level, here in America, and the EconoMaster® is a key step in that process.” Suhner is based in Brugg, Switzerland with plants and distribution centers worldwide.
The EconoMaster® drilling unit features low power and air consumption, adjustable motor housing, adjustable total stroke up to 4”, hydraulic feed control cylinder, J33 taper spindle end, 0-1/2” drill chuck, electric front & rear position limit switches, belt tensioner and chrome-plated quill. Basic unit weight is 45 lbs.
Other key features include adjustable feed stroke of ½-3”, 400 lb. thrust at 85 psi, operating pressures to 110 psi, TEFC/IP56 protection, standard 230V/460V, concentricity of .002” TIR, speed ranges to 9600 RPM and an air connection retract/advance of ¼” to 27 NPT.
EconoMaster® drilling units can be supplied with an adjustable stand, inline vertical configuration and multiple spindle heads for medium-duty production drilling, with many other spindle options and toolholders available. Please consult the factory.
For more information, please contact:
Lee Coleman, National Sales Manager-Machining DivisionContinue reading
New brochure details wide assortment of components for machine tool builders, integrators and end users in all metalworking sectors
Suhner, a leading manufacturer of automated tooling components, slides and multi-spindle components, has expanded its product offering, detailed in a new brochure the Machining Division. Known best for its drilling and tapping units, milling units, machining slides and other specially designed devices for high production work, the company continues to experience increased demand for its machining products and services. As detailed in this new brochure, the Suhner Machining Division offers several new and enhanced products including flex shaft multiple drive system, QUILLmaster Drilling Units, TAPmaster tapping units, stationary and self-feed, flexible-shaft driven drilling units, POLYdrill multiple spindle heads, SPINDLEmaster machining spindles and SLIDEmaster. All are designed for high-production work, especially in the automotive and other mass component market sectors.
The flex shaft multiple drive system works with MULTImaster drilling units. It offers up to 8 driving units, a motor rating of 5 HP (3.7 kW) standard and an output speed between 46-9,320 rpm. Optional features include a larger motor and a right angle drive.
QUILLmaster drilling units are self-fed drilling units, motor driven and pneumatic-fed. The total stroke is up to 4.9 in. (125mm), same as the controlled stroke. Furthermore, the QUILLmaster has a drilling capacity with diameter up to 0.8 in. (20 mm) for mild steel and a motor rating between 0.3-5 HP (0.22 kW -3.7kW). Tool holding options include ER, ST, ISO/CAT, HSK & custom.
Suhner stationary and self-feeding, flexible shaft driven drilling units feature total stroke up to 3.1 in. (80 mm) and controlled stroke up to 2.9 in. (75 mm). The flexible shaft drilling unit has a drilling capacity with diameter up to 0.47 in. (12 mm) into mild steel. Available tooling holding options are ER, ST and custom.
TAPmaster includes CNC or leadscrews tapping units. Leadscrew tappers offer a total stroke up to 3.9 in. (100 mm), a tapping capacity up to .787 in. (20 mm) and a thread pitch between 64-13 TPI (0.4-1.75 mm). Available options are custom leadscrew pitches and crash protection on some units. Servo tappers feature a total stroke up to 5.5 in. (140 mm) and a tapping capacity up to .787 in. (20 mm).
POLYdrill multiple spindle heads include adjustable and fixed spindle heads. Drilling capacity ranges from 0.06 to 1 in. (1.5-25 mm). Minimum hole spacing is 0.27 in. (7 mm), while maximum hole spacing is limitless. Tooling options include ER, ST, JT33, Weldon and custom. Additional features are axial and radial compensation and custom layout/spacing.
The company’s SPINDLEmaster features precision turning spindles and slide units. The drilling capacity has a diameter up to 1.6 in. (40 mm) into mild steel and a motor rating between 0.75-10 HP (0.56 kW-7.5 kW). Tool holding options include ER, ISO/CAT, HSK, Weldon and ABS. Available options are coolant through automatic tool charger, taper roller or angular contact bearings and higher capacity spindles.
Lastly, the SLIDEmaster offers pneumatic, hydraulic and servo (ball screw) slide types. Stroke options include 6.3, 12.6 and 18.9 in. (160, 320 and 480 mm). Additional options include custom stroke lengths and higher capacity slides.
For more information, please contact:
The advantages for the user are obvious. In the past, it was necessary to decide in favour of one of the three technologies. Now, with the VTC 315 DS, it is possible to choose the technology that best suits individual applications. Dr. Guido Hegener, the executive responsible for grinding technology at EMAG Salach Maschinenfabrik GmbH, comments on the diverse applications: “We are consistently following the path of combination machining. As a rule, our customers manufacture different workpieces on the machine. We intend to offer them the best technology for every application.” The VTC 315 DS is of interest to those engaged in the manufacture of medium and large batches of high-quality components such as gear shafts, rotor shafts, pump shafts, motor shafts or cardan shafts. The machining technology is chosen accordingly. Sturdy workpieces are machined using the scroll-free turning technology. The grinding technology is preferred for smaller, less stable components. “This makes us more flexible and allows us to choose the right technology for every individual requirement”, explains Dr. Guido Hegener the advantages. The machine can be used as a fully-fledged grinding machine, or a fully-fledged turning machine, or a combination of both. When choosing a technology one should take a closer look at the cycle time and, in particular, at the tooling cost. Unit production costs are usually higher with hard turning and scroll-free turning than with grinding, although CBN grinding wheels – in absolute terms – are rather expensive. It is for this very reason that the user has to decide on a case by case which manufacturing technology to use.
Different technology modules for different workpieces
The developers of the VTC were also considering the machine as an investment in the future. Should production requirements change, the machine can be equipped – at very little expense and effort – with different technology modules that make it suitable for machining of the new workpiece. At present, the technology modules available are:
This guarantees flexibility in the use of the machine and opens up a wide range of applications, especially as all the technologies can be applied also in combination.
VTC production lines
The VTC 315 DS is ideally suited for complex manufacturing processes. Whether the job includes the high metal removal rates of turning and milling or the gentler grinding process – the VTC series of machines offers the possibility to integrate most of the metal cutting processes. This allows for the creation of complete VTC production lines for soft and hard machining. Turning, milling, drilling, grinding and gear hobbing have already been modularised for this particular machine platform. It provides the VTC with an extensive field of application. “We have already installed complete production lines of VTC machines for the soft machining of crankshafts. Almost all of the operations could be accommodated on machines from the VTC series”, this is how Markus Woitsch, chief of the production team for shaft machines, explains the production line concept of the VTC. Naturally, subjects like spare part stocks and unified machine operation also play a decisive role in the eye of the customer. With a production line that interlinks a number of different VTC machines and utilises different manufacturing technologies, spare part stocks can be drastically reduced, as 80% of the VTC machine components are the same. Only the technology modules change, when a VTC has to be adapted for a new machining requirement.
Complete-machining through technology combination
The VTC 315 DS accommodates turning as well as grinding technologies. For example, the turret carries out all turning operations, while the second station is used for the grinding work. This way, shafts can be complete-machined: the cylindrical bearing seats, the shoulders and the grooves – all machined in a single set-up. “Clamping errors play a particularly important part when it comes to high-performance components. Radial runout can be much reduced when a workpiece does not have to be re-clamped several few times”, elucidates Dr. Guido Hegener on the quality of the machine. To keep downtimes caused by tool changes to a minimum, sister tooling is provided for all turning operations. And the tool life of grinding wheels is so high that the time taken up by a wheel change is of no consequence.
The VTC 315 DS design
A distinguishing feature of the VTC 315 DS is its sturdiness and rigidity. At its heart is the machine base in Mineralit® (polymer granite). The damping properties of this material is 8 times that of grey cast iron, which makes it particularly well suited for hard machining operations like grinding or hard turning. The results are improved tool life and a better surface finish. The vertical design also aids unhindered chip flow. Manual removal of chips is hardly ever necessary. This is particularly important in soft machining, as it often involves volume-intensive chipping operations. The vertical construction is also of advantage where the footprint is concerned. Machines with horizontal spindle and tailstock take up a lot of space width-ways. That raises floor space requirements and costs money. Vertical machines develop upwards, and that – as we know – costs nothing. Automation on the VC 315 DS lies in the turret. A gripper, housed in the turret, collects the raw-part from its storage section and transfers it to the clamping position. Once the workpiece is machined, it is transferred out of the machine the same way. And thus the machine automates itself. The generously dimensioned machine assemblies, such as the work spindle with 330 Nm constant torque, and the grinding spindle with a power rating of 30 kW, have so much reserve capacity that even heavy metal removal work can be carried out on the machine. The control system used is a Siemens 840 D with EMAG grinding software that simplifies programming and operation.
The advantages of the VTC 315 DS:
For more information:
Attention: Peter Loetzner
The International Monetary Fund (IMF) estimates that the world economy will grow by 3.5 percent this year, with the impetus coming less from Europe and more from dynamic, newly industrialized countries. One example is the automotive industry. According to the association for the German automotive industry (VDA), China’s share of the market in passenger cars increased by 59% and that of Brazil by 18% during the first few months of 2013. The same market is also growing in India and Russia. For a long time, new production facilities have been planned and are under construction, providing great opportunities for the machine tool industry – as the example of EMAG proves. Specialists are developing turnkey manufacturing systems that are tailor-made to suit specific market conditions, with the new production facilities in particular gaining substantially from this increased market activity.
Whether in the automotive or energy supply industry, the development of industrial key sectors within the BRIC countries (Brazil, Russia, India, China) has a direct influence on the machine tool industry, as it is this branch that, in the end, must supply most of the necessary manufacturing solutions. There are numerous indicators for this fact. For instance, according to Germany Trade and Invest (GTAI), the Russian enclave of Kaliningrad will – over the next 3 years – will see an investment of 3 billion Euro in six assembly facilities and fifteen sub-supply companies for the national automotive industry, with more international sub-suppliers also establishing outlets in the market. Similar activities are reported from Brazil. According to Anfavea, the country’s automobile association, approximately 22 billion USD are to be invested in production between now and 2015. In India, economic growth is generally attracting “an abundance of investment projects in the country’s infrastructure, as well as in new industrial complexes,” states GTAI.
The German machine tool industry is prepared for such a dynamic development and the opportunities it provides can be seen in the textbook case of EMAG. Their specialists see themselves as “partners in solutions” for the metalworking industry. Such an approach is of great importance, especially in the emerging markets. “As it happens, we don’t just deliver a machine tool. We deliver closely pinpointed manufacturing solutions that are, in every respect, tailor-made to customer requirements”, explains Dieter Kollmar, Managing Director of EMAG Holding GmbH. “This applies, of course, to typical factors such as batch sizes, component variants or, more generally, the flexibility of the processes applied. At the same time, we determine locally the technologies, automation equipment, interfaces and control systems required.“ The advantages for the customer are obvious, especially where an existing production line is extended or where a greenfield manufacturing facility must be created in a new market place. Our manufacturing systems are always “from a single source.” Even complex processes with peripheral machines and equipment are presented as turnkey projects by EMAG, thus considerably reducing the efforts of local production planners.
VL 2: Highly effective, truly outstanding space saver
The VL 2 is a pick-up turning machine with which the EMAG engineers are fulfilling a combination of two extreme demands: highest possible output rates on the smallest possible footprint. “This is a truly all-important aspect,” confirms Dieter Kollmar. “Although the floor space requirement for this vertical turning machine is just about 5 square meters, it is a machine of substantial capability, including a fully comprehensive automation concept with conveyor belt, workpiece storage and pick-up spindle. In combination with vertical turning, this results in very fast machining processes. “In other words, short loading travel guarantees the lowest possible component cost. Compared to horizontal turning machines, productivity rates increase quite noticeably. And maintaining the VL 2 is simple. All service units are freely and quickly accessible. The user can set up the machine in one step. “That too is important, when productivity levels enter the equation. Operators without prior experience, working at a new and unfamiliar location, will be able to quickly familiarize themselves with the machine. All in all, this is an optimal solution for those who want to extend production with as little investment as possible,” notes Kollmar.
VT 2-4: For demanding shaft production
A similar approach is shown with the VT 2-4 Vertical Turning Machine, with which the EMAG specialists have created an equally fast manufacturing system for shaft production. Even demanding machining processes can be realized on it. When machining shafts up to 400 mm length and 63 mm diameter, component costs reduce considerably, with extremely short chip-to-chip times (as with the VL 2) being the reason. Workpiece grippers transport the workpieces into the machine and remove them again, once they have been machined. Depending on the workpiece, the changeover can be accomplished in just 6 seconds. And the actual turning process is fast, too. 4-axis machining allows the component to be machined from two sides simultaneously. Vertical alignment of the workpieces provides consistent process integrity, as the unrestricted chip flow prevents the formation of clusters in the machining area.
Central project management
“We are convinced that these EMAG solutions are optimally designed to cover not only the specific requirements of an emerging market, but also those of Europe and the USA,” as Dieter Kollmar his company’s philosophy. Everything is greatly simplified, starting with production planning, as there is no need for separate workpiece and finished component storage, with the added advantage of a reduced floor space requirement. At the same time, the EMAG Group engineers act as central project developers, having access to machines with optimal interfaces. This guarantees a fast run-in and makes the machines maintenance-friendly. “When it is a question of arriving quickly at a wholly integrated, highly effective manufacturing solution, this approach must – from our point of view – be the first choice,“ Kollmar concludes.
For more information, please contact:Continue reading
The composite camshaft is still gaining ground in the marketplace. The main reason for this is the considerable weight reduction it brings, compared to its one-piece rival. The composite version is by now also widely used in the HGV sector. However, the main disadvantage of many current assembly processes is the high joining force applied, which creates unacceptable tolerances in positioning and alignment of the cams. By contrast, the patented heat shrink assembly process from EMAG offers a decisive advantage, as it ensures that “ready-to-fit” camshafts, gear shafts and other precision composite units can be produced without problems.
The advantages of the composite camshaft are well known: less expense, less weight, the possibility to use different materials for the various constituent components, greater flexibility in production and the ability to implement new cam geometries, such as negative radii, with ease. The necessary reduction in fuel consumption – and with it those of CO2 emissions – are easier to achieve with an increasing use of composite camshafts.
Alternative processes for the joining of cam and shaft have one serious disadvantage: the two components cannot be joined with the necessary accuracy to avoid a subsequent finish grinding process. In many cases, the joining of cam to tube is carried out using a form-fit process like press-fitting, knurling and/or spline/serrated gearing. The joining forces required for these processes can deform the components and result in unacceptable tolerances in cam position and orientation.
The heat shrink assembly process from EMAG means precision joining
Thermal joining, i.e. the heat shrinking of cam onto tube, ensures that the required tolerances are achieved with a reaction force-free process. The know-how to tightly control the process parameters of “temperature” and “time” – and the mechanical design of the joining equipment – are of the utmost importance in this process.
An optimal combination of robot and special-concept gripping technology allows for fusion gaps of < 15 µm to be achieved safely. The concept’s great flexibility allows camshaft designers more freedom in their designs and ensures that the process can also be used for medium batch sizes, where frequent component type changes are the order of the day. The high degree of precision of the composite camshaft drastically reduces the need to subsequently grind the cams or – where precision cams are used – does away with the requirement completely. A further advantage of this process lies in the possibility of using different materials for the composite shaft. This includes forged cams, for instance in 100Cr6, or finish-ground cams, even dimensionally accurate sintered cams that do not require a downstream finish-grinding operation. Secondary components, such as bungs and endpieces, can – just like the actual shaft itself – be made of more advantageous materials.
All this allows the camshaft to be made to suit the requirements of the engine and to optimize it in terms of load bearing capacity and manufacturing costs.
And now one step further:
Where the camshaft needs to be ground after heat shrink assembly, the joining machine can be linked up to a grinder. This is particularly easy when using an EMAG grinding center of the VTC DS Series. With this setup, the joining machine robot transfers the assembled camshaft directly to the loading position on the grinding center. The advantages of this process from EMAG also apply to the machining of other components. When machining gear shafts, ground gears can be joined tightly on the shaft, without needing to account for the grinding wheel overrun at the design stage. It also minimizes the length of the shaft and makes the whole unit more compact.
The EMAG process is characterized by only a very few machining components being in direct contact with the workpiece. It allows for the machines to be reset in the shortest possible time (typically less than 15 minutes).
Joining in seconds and achieving the highest possible quality
The heat shrink assembly process offered by EMAG combines flexibility with productivity, while freedom of design and choice of production technologies ensure a short cycle time. While one cam is heat shrinking, the next one is already being preheated. Equipping the heat shrinking machine with a number of preheating units allows for the optimal application of this technology to the task at hand. It is these advantages that may well be the reason why so many firmly established manufacturers of camshafts and other precision assemblies are showing such a great interest in the new process, are asking for machining tests, or are already applying the process under actual production conditions. In the ideal case, the customer will take advantage of the synergy provided by the EMAG Group and ask for a complete concept to be prepared that covers everything from pre-machining to heat shrinking and end machining.
The advantages of the heat shrink process:
The advantages of the composite camshaft:
For more information, please contact:
38800 Grand River Avenue
Farmington Hills, MI 48335
Tel: (248) 875-0313
Fax: (248) 477-7784
Web: www.emag.comEMAG LLC
38800 Grand River Avenue
Farmington Hills, MI 48335
Tel: (248) 875-0313
Fax: (248) 477-7784
Attention: Peter LoetznerContinue reading
EMAG has a long history, starting back in 1867 in Bautzen, Germany, as an iron foundry and engineering works. Re-established 60 years ago in Eislingen, Germany, in 1952 to make lathes and special-purpose machines, today it makes manufacturing systems for precision metal components from its headquarters in Salach, Germany. Its machines range from basic round-part vertical turning centers to machining centers with as many as six axes handling large workpieces. They perform turning, milling, grinding, hobbing, drilling and more as singular purpose setup or combination machines.
The tools manufacture primarily automotive, off-highway, agricultural and oil field components. For example, EMAG tools are involved in transmission components for agricultural vehicles, such as gears, ouput shafts and idlers. “If you look at a dozer from the outside, you have a chain,” notes Peter Loetzner, CEO of EMAG’s U.S. subsidiary in Farmington Hills, Mich. “There are two large precision wheels that drive that chain. There are idlers on the bottom. Our machine can make all these round components.”
EMAG’s equipment differs from typical vertical lathe machining centers, whose head stock is mounted, typically horizontally, and a turret turns to do the machining. “Our turret is mounted in a concrete base, so it’s not moving,” Loetzner explains. “We have a head stock that moves outside of that design. That gives us better precision and better tool life.”
The machine builder takes pride in its ability to produce high-precision parts. In one example, Axle Alliance in Redford, Mich., needed to hold to a 25 µm tolerance for 390 mm diameter steel ring gears during hard turning, which is done prior to grinding the gear teeth. EMAG worked with Axle Alliance to develop a probing process that ultimately delivered a variation of less than 15 µm. Axle Alliance now uses six machines built at EMAG’s headquarters in Germany, each dedicated to a part line.
Another example comes from Precima Magnettechnik in Brückeburg, Germany, whose customers expect absolute perfection from, in this case, housings for brakes used mainly for wind turbines. Precima had had issues with machine vibration causing negative effects on tool life and surface finish. However, the rigidity of EMAG’s turning machines and the vibration damping quality of the base allows for the very high feed rates and cutting speeds required in precision hard-machining. Precima now runs four vertical pick-up turning machines from EMAG.
Loetzner gives much of the credit for the machines’ capabilities to long-time partner Siemens. EMAG has standardized on the Siemens Sinumerik 840D CNC platform, specifically the solution line and power line. Loetzner likes, in particular, that the CNC controller is an integral part of the PLC, and they are able to do almost everything through the CNC, including making it look like a PC for the operator. The common look and feel for the operators makes for easier onsite commissioning and cross-training, Loetzner adds.
In one recent case study, EMAG needed to provide grinding, turning and turn-grind machines to a major agricultural equipment builder, and the machine builder relied on the 840D CNC. “We needed to devise a control solution that would satisfy all the needs of the various machines we were supplying to this demanding customer, based on a common platform, to enable easier design, integration, startup, commissioning on-site and training for our customer’s operations and maintenance personnel,” Loetzner said at the time.
Similar control technologies are used on EMAG’s newer-technology machines, including laser welding and electrochemical machining centers. These technologies have little impact on the control or automation schemes, Loetzner notes, because they still are essentially performing the same task, whether in a dry, lubed, gas-cooled or underwater environment. Only the sensors and encoders need to change to accurately feed the relevant data to the control. In fact, the controls are often much simpler because the axes of motion are fewer, though more multi-axis and workpiece manipulating machines are being developed.
The CNC also enables remote monitoring over a wireless network so that process engineers can see what the operator sees on each machine. The agricultural equipment customer mentioned has used the remote monitoring capability on a wide variety of EMAG machines for several years, with all data communicated through a single information network that’s accessible by both EMAG and Siemens. Through this arrangement, they have been able to significantly reduce downtime, service calls and troubleshooting identification time.
More than 75% of the EMAG machines at this customer site are equipped with robotic devices. The lights-out capabilities this provide make remote monitoring that much more important. Remote monitoring can be done directly through the Sinumerik CNC in a one-on-one exchange with the customer, Loetzner notes, or even a three-way exchange involving Siemens as well.
While happy with the precision capabilities, EMAG’s focus on future development is trying to decrease the downtime between producing components. “On the automation and the part handling, the challenge is you want the machine to run and make parts all the time, right? But once a part is done, you have to take it out and put the other in,” Loetzner says. “Those non-productive times are the biggest enemies.”
EMAG reduces those times partly by use of the Japanese chaku chaku principle. Meaning “loading loading,” the idea is to bring various process steps as close together as possible to improve the speed between the processes. EMAG’s vertical machining centers not only fill a much smaller footprint on the plant floor, they also improve chip flow. Also, all of EMAG’s machines are self-loading, with a servo-controlled shuttle traveling through the machine, but not through the work envelope, Loetzner notes.
“While we have shown the industry we can master any part to highest precision, over the last five years we’ve been more and more focused on tightening non-productive time,” Loetzner says. At IMTS in Chicago in September, 2012, EMAG showed a new machine generation that significantly reduces the non-value add times. “Our chip-to-chip time was between 6 and 7 seconds for typical automotive gear,” Loetzner says. “Now it would be a second or less.”
For more information:Continue reading
Contact for press and publishers:
Attention: Peter LoetznerContinue reading
Whether we are talking about North America, Asia or Russia, within the oil and gas industry, there is a spirit of optimism. Geological discoveries have led to a massive increase in the estimated reserves in many countries. Along with these discoveries, the potential for the use of innovative technologies has also increased. According to the expert estimates, oil production in the Gulf of Mexico alone will rise from the present 1.3 million to 1.7 million barrels a day during the next decade, with demands for the highly sophisticated technological equipment required to accomplish it increasing as well. Two examples are delivery pipes and casings. To create the connection safely and in perfect alignment depends on the threads on the pipe ends. With its USC turning machines, the specialists from EMAG Leipzig have not only created a tool that specializes in this application – and one that has perfected the production sequence for these threads – but also developed complete solutions that guarantee component quality and process integrity.
Economic key performance indicators for suppliers to the oil and natural gas industry change rapidly. An impressive example of this is found in the USA. The USA hopes to reduce its dependence on oil imports and instead invest heavily in new technology. An indicator, for the US, are imports of equipment technology for the American oil and gas industry, which the U.S. Department of Commerce for 2012 show an increase of 33 percent, compared to the previous year. The experts also expect a production boom in South America and Asia. For Brazil, the foreign trade experts at Germany Trade and Invest (GTAI) predict a “high level of growth in new reserves“. And on the other side of the globe, the investment volume in the oil and gas sector of Vietnam alone has reached 40 billion USD, according to GTAI.
The experts at EMAG Leipzig are aware that this extraordinary dynamic has a direct impact on the production of the required technology. For decades, the machine builders at Leipzig have been specializing in the machining of delivery pipes and casings for the oil and gas industry. Many users can no longer do without their special know-how in demanding thread production. Frank Schiffler, Head of Sales, fills us in on the background: “We are talking about a gigantic production output. One steel mill produces up to 2 million metric tons of pipes per annum. Component quality is paramount for these because the pipe threads have to be totally leak-proof and must carry the enormous total weight of pipe and oil during the delivery. The machining centers used must ensure that the quality and efficiency of the threads produced is 100%.”
Flexible solutions for the production of pipes
The USC series from EMAG Leipzig Maschinenfabrik represents an extraordinary, sophisticated solution for this particular production requirement. Flexibility is very important in the construction of these turning machines. Not only do the different machine sizes allow for the complete-machining of different sizes of pipes with external and internal threads to API and GOST standards, they can also cut all proprietary threads. “The larger oil field technology producers have their own thread standards. We can adjust our machines perfectly to their demands“, explains Mr. Schiffler. For instance, all workholding and centering equipment is configured to suit individual requirements. The same applies to all automation components. As a result, the customer has an extremely fast production solution that automatically loads and unloads the components in 12 to 20 seconds (depending on pipe size and thread type), then carries out the 3-part threading process – from facing to chamfering and finally threadcutting. The output ratio therefore increases enormously, compared with that of traditional turning machines.
However, there are two important factors that must be taken into account when machining threads on delivery pipes and casings: processing quality and process integrity. The quality is guaranteed by a perfectly adjusted machine, with proven EMAG technology and the know-how of the speciality machine builders from Leipzig come together. The whole process benefits from the following important design details:
“This quality is a feature of all our USC series machines,” acknowledges Mr. Schiffler. Depending on the machine used, the max pipe diameter can be any dimension from 2⅜” to 20”.
Complete solutions guarantee process integrity
When faced with high production rates, fast machining processes and expensive pipe blanks, machine downtimes are particularly costly for the manufacturer. For this very reason, the process integrity of these machines is another key development area in Leipzig. “We design complete solutions for our customers, who – in turn – benefit from the quality of the EMAG components“, explains Mr. Schiffler. “In addition to that, we integrate, for instance, measuring stations, crack detection equipment, embossing and plating units and, of course, a monitoring system that covers all components. At the end, what we supply is a production system that guarantees the greatest possible degree of process integrity.“ Of similar importance in this context is the worldwide service presence of the specialists. Not only are both user and maintenance staff trained to perfection, a 24-hour 365-day telephone service is also available. This ensures that possible machine downtimes are reduced to an absolute minimum.
Projects from A to Z
How do the special machine manufacturers assess their market opportunities over the next few years? Mr. Schiffler’s judgement on the market’s dynamic is a positive one: “We already are the market leader in machines for the threading of oil and gas pipes; and we intend to further extend this position.“ One formula for success in this field is the famous “Made in Germany“ – which is a sign for quality. Over 70 percent of the machine components are made and assembled at EMAG in Germany. Every customer comes to Leipzig for the machine acceptance, where the first test run, using the actual pipe blanks, is carried out. Only then will the machine be installed at the production site. “Our particular quality of service kicks in long before the machine is built, or the central claim made by EMAG Leipzig would not be a valid one. Our name stands for projects that are carried through to perfection from A to Z, and that represent all-round solutions.“
See the USC series in action HERE.
For more information:Continue reading