job order production
Are you in search of a highly experienced contract manufacturer who offers machining, gear toothing, heat treatment, welding or balancing? Or do you need a single item or a small batch series of your workpiece? In this case, we invite you to contact us and benefit from our experience, our expertise and state-of-the-art equipment which we gladly provide for the production of special parts additionally to our volume production.
At GEWES we completely rely on our manufacturing expertise. We perform all major processing steps in-house. Thus, we can ensure that all components are processed with the highest accuracy. As a result, we get final goods which meet our quality standards and are subject to narrow fault tolerance.
To achieve this, we have state-of-the-art machinery available, which we regularly invest in, and, of course, we rely on our specialised employees, which possess longtime experience and act responsible in their field of activity.
To get a detailed overview of our product range on precision turned parts and input shafts, please have a look at the precisions turned parts page.
Machining
When it comes to machining we rely on the most advanced technologies.
For instance, our 5-axis machining center allow complete machining of rotational symmetric and cubic workpieces. Technologies such as turning, boring, threading, milling and gearing are possible in a single-setup. This guarantees shortest lead times as well as a very high degree of precision which hardly could be achieved with conventional processing.
Here we provide you with the essential data of the individual processes.
Machining
CNC - Turning
| preferred production batch | single item to small batch series |
| max. workpiece dimensions (DxL) | 1,250 x 2,800 mm |
| max. workpiece weight | 3,000 kg |
CNC - milling / boring
| preferred production batch | single item to small batch series |
| max. workpiece dimensions (DxL) | 3,500 x 1,000 x 900 mm |
| max. workpiece weight | 2,500 kg |
Groove milling / groove drawing
| preferred production batch | single item to small batch series | |
| External | Internal | |
| max. workpiece dimensions (DxL) | 70 x 2,400 mm | 520 x 500 mm |
| max. workpiece weight | 30 kg | 2,500 kg |
Gearing
| method | cold rolling, hobbing, hob peeling, broaching | |
| preferred production batch | single item to small batch series | |
| max. workpiece dimensions (DxL) | 1,250 x 4,000 mm | |
| max. workpiece weight | 4,000 kg | |
| max. module | 14 | |
| profile | according to DIN 5480, DIN 5482, ANSI 92.1-1970, additional standards upon request | |
Gear Toothing
Cold Rolling
| max. workpiece dimensions (DxL) | 100 x 1,200 mm |
| max. workpiece weight | 30 kg |
| max. module | 2.5 |
Profile milling
| max. workpiece dimensions (DxL) | 1,250 x 4,000 mm |
| max. workpiece weight | 4,000 kg |
| max. module | 14 |
Grinding
Cylindrical external grinding
| max. workpiece dimensions (DxL) | 70 x 2,400 mm |
| max. workpiece weight | 30 kg |
Coordinate Measuring
You are in need of a high-resolution measurement of your workpieces? Measuring tolerances shall be as narrow as possible? Our modular measuring system precisely provides accurate and fast measurements.
3D Coordinate Measuring Machine
| max. workpiece dimension (DxL) | 3,000 x 1,200 x 1,000 mm |
| max. workpiece weight | 1,000 kg |
Heat Treatment
Our modern equipped Heat Treatment Facilities feature pusher type gas carburising plants as well as multi-purpose chamber furnaces and several shaft furnace plants. These enable a perfectly matched heat treatment meeting your needs. You may also make demands on the services of our Induction Hardening Plant.
Our quality management supervises hereby all processes and documents the results up to and including structural assessment and material analysis.
The following data characterize the service range of our heat treatment facility.
Pusher Type Gas Carburising Plant
| case hardening / carbonitriding | |
| batch dimensions | 625 x 625 x 500 mm |
| max. batch weight | 300 kg |
| Tmax / carbon potential | 930°C / 0,6 – 1,1% |
Multi Purpose Chamber Furnace Plant
| case hardening / tempering / carbonitriding | |
| batch dimensions | 625 x 1,250 x 500 mm |
| max. batch weight | 350 kg |
| Tmax / carbon potential | 930°C / 0,35 – 1,1% |
Shaft Furnace Plant
| annealing without inert gas | |
| batch dimension | Ø 800 x 1,500 mm |
| max. batch weight | 500 kg |
| Tmax / carbon potential | 600°C |
Induction Hardening
| rotational symmetric parts | |
| max. workpiece dimension | 1,500 mm |
| max. hardening depth | 10 mm |
In addition to that we offer you the following services:
Plastic Coating
| Rilsan® | |
| max. coat thickness | 0,6 mm |
Abrasive Blasting
| steel grit dimension | 1 mm |
Welding
Our welding certificates for railway and maritime applications give proof to our ability to fulfil the high requirements in safety-critical systems.
You also may benefit from our experience and accuracy.
This is the service range of our modern systems.
Welding Technique
| GMAW - orbital welding SAW - orbital welding | max.length welded assembly | 10 m |
| max. rotational diameter | 800 mm |
Balancing
To avoid damage to your machinery, universal joint shafts and rigid rotors that are operated at high numbers of revolutions should run with a minimum value of imbalance. Balancing reduces stress of the elements on both, drive side and driven side.
Gladly, you may have your universal joint shaft or your rotational symmetric rotor balanced at our site.
Service Range
| universal joint shafts | rigid rotors | |
| balancing quality acc. ISO 1940 | G 6.3 - G 40 | G 6.3 - G 40 |
| clamping length | 10,000 mm | 10,000 mm |
| rotor diameter max. | 390 mm | 1,000 mm |
| belt bearing diameter | - | 500 mm |
| max. workpiece weight | 1,500 kg | 1,500 kg |
| max. revolutions | 4,100 min-1 | 2,500 min-1 |
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