• Stamping technique

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Stamping technology - the heart of KLEINER GmbH

Automatic punching presses by the companies Bruderer and Haulick & Ross are what make KLEINER GmbH “tick”. With a “rhythm” of 30 to over 1,200 strokes per minute, and up to 250 tonnes of pressing force, they allow us to cover a wide range of stamping demands. Because we have such a broad selection of different machines, we are able to economically produce both very small quantities of a product for pilot production, testing parts, and large quantities for series production.

We can punch stamped components from continuous strips, or collect finished parts in a container. We process strips and semi-finished materials in widths up to 320 mm, and 0.06 to 4 mm thick. Our modern automatic punching presses and tools with safety systems guarantee high quality and adherence to delivery deadlines.

Seamless IT systems are standard at KLEINER, encompassing our processes from machine data logging to transfer into SAP and CAQ system Babtec. This allows us to deliver data and testing schedules to test cells, which are connected directly to the automatic punching presses. Quality assurance is available right at the machine.  


  • Busbars +

    Assembly production at KLEINER encompasses all of the key technical areas within our company – development – toolmaking – stamping technology – automation – and fitting. Cleaning, mechanical assembly, and fully automated film adhesion are well-established serial processes in our company.

    As a principal contractor, we can integrate plastic or silicone purchased components, then deliver finished, tested assemblies to you – tested for HV and partial discharge. 
       
  • Punched grid boxes +

    Punch grid boxes are used in applications where high electric currents need to be distributed within a small space. These types of power distributors are used in vehicles, for instance. Frequently, punch grids are designed to allow them to be connected directly to a wiring harness through multipin connectors. Discrete components such as relays or fuses can be mounted on a punch grid box, if suitable connectors are attached. Punch grids are circuit boards which are punched out of a strip of material using a punching press. They can be made of different raw materials, depending on their purpose. The material will be chosen based on the intended use. They can be manufactured and processed further either still attached to the strip of material or in partial segments.
       
  • Press-fit zones +

    The EloPin®

    The EloPin® is an elastic press-fit zone which adapts perfectly to conditions on a printed circuit board, creating an optimal electrical connection with a high level of mechanical stability, using low press-fit force while ensuring high retention force. The press-fit area of the EloPin® uses the proven and effective “needle eye” shape. The edge of the press-fit zone is embossed to improve stability. Pockets, also embossed, are used to hold the extruded tin. The radii, which are adjusted for the plated through-hole, provide optimal protection for the printed circuit board across large contact surfaces (e.g. low contact resistance and high retention force due to the use of cold welding) This eliminates the negative effects of the soldering process. The innovative pin also corresponds to the strict requirements of the automotive industry, and is already approved and in use in multiple OEMs. Its ability to be used in engine compartment applications from -40°C to 150°C, in particular, make the press-fit zone used by KLEINER an especially attractive product. You can also enjoy the benefits of fast and simple prototyping services from KLEINER GmbH. KLEINER will produce the EloPin® as part of our prototype construction before the start of series production, allowing us to react in advance to our customers’ specific needs.

    Key advantages of EloPin® at a glance:

    • Proven “needle eye” shape
    • Inexpensive, two-sided circuit board assembly
    • Controlled tin distribution • High mechanical stability with low press-fit and high retention forces
    • No hazardous materials
    • Little stress on through-plated holes and the attached busbars.
    • No jet effect
    • For engine compartment applications in a temperature range from -40°C to 150°C
    • Low contact resistances
    • Protects circuit board
    • High elasticity (resilience)

       
  • Micro stamped parts +

    Stamping small holes with large aspect ratios places the highest demands on materials, tools, and manufacturing processes.

    We are able to mass produce openings only micrometres in size, while adhering to very strict tolerance limits.

    Technology: Bulk material
    Thickness: from 0.05 mm High-precision KLEINER tools on Bruderer presses with 25 - 30 tonnes of pressing force
    Output: up to 1,000 strokes/min.
    Industries: Automotive, electrical industry, telecommunication and medical technology, watchmaking industry
    Areas of application: Electrical motors, miniature motors
       
  • snapdomes +

    Snap domes are a modern force feedback element that give drivers and operators key tactile feedback, or trip power or control current.

    Besides classic customers in the switch and membrane keypad industries, we also supply module manufacturers for the active gas and brake pedal (brake by wire). Our development department is happy to advise you regarding spring force calculations, FEM simulations, prototypes, and your own mechanical testing centre.
       
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YOUR CONTACTS IN STAMPING TECHNIQUES

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Waldemar Hanke
Manager Stamping Technology
wha@kleiner-gmbh.de
Tel.: +49 7231-6072-1480

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Torben Dierlamm
Sales
tdi@kleiner-gmbh.de
Tel.: +49 7231-6072-1707

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Stefan Dreja
Sales
sdr@kleiner-gmbh.de
Tel.: +49 7231-6072-1550

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