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High performance stamping/Fineblanking
The standard press force of our 30 stamping machines ranges from 50 t to 500 t. Our fineblanking presses have a press force range of 320 t and 700 t. Multi-stage progressive tools can be spanned over a table length of up to 1,600 mm. The production process is monitored by stamp machine setters who have received additional internal qualifications for operator self inspection. We can process materials with thicknesses from 0.05 mm to 12 mm with our systems. The maximum strip width is 400 mm.

Vibratory finishing
With our 33 vibratory finishing machines, each with specific finishing media, we can create product-based deburred edges. Even stringent cleanliness requirements from our customers can be implemented.

We have over 10 double disc grinding machines available, via which we can also reliably achieve accuracies of +/- 5 μm even at high quantities. To do so, we occasionally operate our units in an air-conditioned environment. We use units with rotary feeds for asymmetrical products and also achieve the highest possible levels of precision even with more complex product geometries.

Heat treatment
We ensure that client product specifications are adhered to with our in-house heat treatment units. These units are only operated by specialists including trained material inspectors and universal hardeners. CQI 9 conformity of the production processes we take for granted. With our latest investment in a chamber furnace line we supplemented our technology portfolio by the case hardening process. We are thus in a position to offer the following heat treatment processes commonly used in the automotive industry:
- Hardening in a continuous process or in a chamber furnace
- Tempering in our own tempering furnaces
- Nitriding/Nitro-carburizing in bulk or on racks
- Case hardening.

Products that are installed in oil-bearing circuits or injectors are increasingly subject to stricter cleanliness requirements. Our concatenated brushing machines and downstream washing machines are used to remove burrs from the smallest recesses on both sides with short cycle times before subsequently washing and drying.
We also achieve optimal results regarding residual dirt due to the clean ambient conditions. These values are continuously monitored during the manufacturing process. Technical cleanliness is an important quality feature in our company.

Automatic sorting
Using the transmitted or reflected light procedures, we can discover surface faults and also exceedance of dimensions in a field of 1/100 with 15 camera-based fully automated inspection machines. Larger serial production batches can be implemented with cycle times lasting seconds. Depending on the product, we monitor 10 items per second.

Special operations
To supplement our wide range of standard operations we also offer additional special operations such as riveting, embossing, and transfer production.

  High volume system-relevant precision stamped parts with high level of in-house production  













E. Winkemann, precision stamped parts, fine blanking parts,

Made in Germany, transmission, axle drives, fuel injection technology, engine technology, screw connections, non-automotive, chassis, stamped parts, precision stamping, fine blanking,


Plettenberg, continuous improvement process, zero error strategy, automobile industry, automotive supplies, automotive supplies industry, electrical industry, manual transmission,
thrust washers, rivets, stamping, transfer production, conventional steels, Q & T steels, non-ferrous metals, exact packaging, authorised exporter, approved exporter, known consignor,
air freight shipments, additional training, industrial environmental protection, ISO 9001:2008, ISO/TS 16949:2009, DIN EN ISO 14001:2009, shims, consumption-based parts, f
langes, covers, riveted assemblies, turbo chargers, valve spring retainers, wheel bolts, fuel injection technology, injectors, pumps, start/stop function, CO2 reduction, technical customer service,
product management, Rapid Prototyping, plastic prototypes, 3D printer, tool design, tool manufacturing, vibratory grinding units, vibratory grinding, residual dirt requirement, residual dirt requirements,
double disc grinding machines, heat treatment plants, washing facilities, air-conditioned, fully automatic inspection linespe, Start-Stopp-Funktion,
Reduzierung von CO2, technische Kundenberatung, Produktmanagement, Rapid Prototyping,