Precision that fits. High-precision turned parts and ready-to-fit assemblies.

Efficient. Precise. Scalable.

Efficient. Precise. Scalable.

Series quality from the prototype onwards. Because we manufacture on series machines, we guarantee maximum precision, cost-efficiency and process reliability from the very start – whatever the batch size.

We manufacture demanding turned parts – currently in a diameter range from 2 to 32 mm, and beyond that on request. This is made possible by our modern machinery, tight concentricity and dimensional tolerances, and decades of experience in series production. Our external tool grinding shop, located on site at our Bretten headquarters, allows tooling solutions to be implemented quickly and close to the process. For machining we use exclusively 3-metre bar stock and process a wide range of materials.

The result: precision parts for the highest demands – efficiently manufactured, from small batches to large series.

  • Flexible diameter range – from small parts to larger components
  • Tight concentricity and dimensional tolerances for maximum precision
  • Tool grinding shop directly at our Bretten headquarters
  • A wide range of raw materials for the most varied applications

Technology in detail – our capabilities

We have been established on the market as a manufacturer of precision turned parts since 1969 and are today among the international leaders in our sector. Working closely with our customers, we support new projects from the very beginning and bring our manufacturing expertise into component development at an early stage. The result is technically demanding, commercially optimised solutions.

Example 01

This high-precision component is used in a pump for combustion engines in the automotive sector. It is characterised by extremely small dimensions and by complex manufacturing on multi-spindle machines, which ensures exact dimensional accuracy.

Used in the automotive sector (pump for combustion engines)

Raw material: stainless steel

Extremely small dimensions: overall diameter 4.35 mm, sections 1.5 mm, bores < 1 mm

Manufactured on cam-controlled multi-spindle machines

In-house further processing: hardening and blasting

100% inspection: automated inspection system (in-house design) plus manual visual inspection

Annual output: approx. 15 million units

Example 02

This component is used in high-pressure pumps for off-highway applications, where it excels through the precise observance of ball dimension tolerances. The manufacturing process on CNC multi-spindle machines guarantees the highest quality.

Used in high-pressure pumps in the off-highway sector

Material: brass

Diameter approx. 17 mm

Reliable observance of the tightest ball dimension tolerances

Manufactured on CNC-controlled multi-spindle machines

Annual output: approx. 1 million units

Example 03

This component is used in the automotive sector with particularly tight tolerances of down to 0.01 mm. Manufactured on multi-spindle machines and then ground and lapped in-house, it combines rapid tool replacement with precise manufacturing to guarantee the highest quality.

Max. outside diameter: 8 mm

Tight tolerances down to 0.01 mm

Manufactured on cam-controlled multi-spindle machines

In-house lapping and grinding processes for maximum precision

Tool design by Klumpp, rapid replacement through the external grinding shop on site

Annual output: approx. 2 million units

Example 04

This precision part is used in diesel applications in the automotive industry. Manufactured with a maximum outside diameter of 10 mm and tolerances of < 0.01 mm, it is produced around 2 million times a year in a highly automated, monitored process.

Used in diesel applications in the automotive industry

Max. outside diameter: 10 mm

Annual output: approx. 2 million units

Soft turning on cam-controlled multi-spindle machines

Hardening followed by an in-house hard-turning process

Tight tolerances of < 0.01 mm in hard turning

Automated process monitoring with direct machine correction

Klumpp Drehteil - Beispiel Polkern

Let us develop your precision parts together – and put our manufacturing expertise to work for you.

Series production without limits

Our capacities are designed for efficient series production at the highest precision. From small parts to larger diameters, we manufacture economically and reliably – from annual quantities of around 20,000 units up to several million parts. This gives our customers maximum flexibility at consistently high quality.

  • 2 – 32mm+

    We manufacture precision turned parts in small to medium diameters, suitable for the finest components through to more robust assemblies. Larger diameters are available on request.

  • ± 0.01 mm

    Maximum dimensional accuracy at the tightest tolerances for demanding functions. Ideal for fits, seals and safety-critical applications.

  • 20k – 1m+

    Whether small batches or large series, we scale flexibly and economically to your requirements, right up to volumes in the millions.

  • 40+

    Machinable materials from stainless steel and brass to aluminium and special alloys. We process materials precisely to your specification and application.

From the idea straight into series production

From the initial idea through to series production, we help make components technically feasible and cost-optimised at the same time. We produce prototypes directly on our series machines – a decisive advantage for securing quality and processes from the outset. Supported by our tool grinding shop in Bretten, we create solutions that can be realised reliably even with tight tolerances and unusual geometries.

 

passion for movement

In motion for over 50 years. Let us take the next step together.