Precision Ground Parts to drawing.

Precision-ground parts from HÖHN. Precision down to the smallest detail.

HÖHN manufactures precision-ground parts to customer drawings, meeting demanding requirements for dimensional accuracy, geometric precision and surface finish. We use a range of grinding processes, including centreless through-feed grinding, centreless plunge grinding and grinding between centres. Grinding is often performed as a finishing operation following CNC turning or CNC milling, achieving the highest levels of precision through modern CNC grinding technology.

We manufacture precision-ground parts in both small batches and larger quantities. Modern grinding technology, automated processes and continuous quality assurance enable precise and cost-effective production.

Our grinding processes
and manufacturing capabilities.

Always make a brilliant impression: ground parts from HÖHN. We combine outstanding surface quality with maximum precision, achieving tolerances down to the smallest micrometer range. Our grinding processes enable us to machine components to tight dimensional and geometric tolerances while achieving specified surface finishes. We select the appropriate grinding process based on the component geometry, material and technical requirements.

Our manufacturing capabilities include centerless through-feed and centerless plunge grinding, grinding between centers, and surface grinding. Modern grinding machines and automated processes enable the cost-effective machining of a wide range of component geometries and batch sizes.

In a nutshell, our range of services at a glance:

• Centerless through-feed grinding: Ø 6.5 to 90 mm, component lengths up to 1,500 mm
• Centerless plunge grinding: Ø 8 to 90 mm
• Grinding between centers: component lengths up to 1,000 mm
• Achievable tolerance classes: up to IT4, depending on component and processing requirements

Versatile.
CNC ground parts for demanding applications.

Precision ground parts are used wherever components must meet tight tolerances, high dimensional accuracy, or defined surface properties.

Typical applications:

  • Mechanical Engineering and Drive Technology
  • Tool and Mold Making
  • Medical Technology
  • Precision Engineering

Find out more about typical applications in our Applications section.

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Typical precision-ground parts
and components.

We manufacture a wide range of high-precision ground parts:

  • Shafts and bearing seats
  • Guides and sliding surfaces
  • Sealing surfaces and fits
  • Rotationally symmetrical precision parts
  • Components with high requirements for concentricity and surface quality

The machined surfaces often serve important functions, for example in the guidance, bearing support, or sealing of moving components.

Requirements for precision
and surface quality.

Ground parts are subject to particularly high requirements:

  • Tight dimensional tolerances, e.g., IT5 or better
  • High geometric accuracy in terms of roundness and cylindricity
  • Defined surface roughness, for example Ra below 0.2 µm
  • High dimensional accuracy and repeatability

For quality assurance, we rely on:

  • A quality management system according to DIN EN ISO 9001
  • Modern measuring and testing technology
  • Coordinate measuring technology
  • Surface roughness and form measurements
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Materials and
processing options.

We manufacture precision ground parts from various materials, including:

  • Steel and stainless steel
  • Aluminium and other non-ferrous metals
  • Special alloys
  • Quenched and tempered and hardened materials

We select the appropriate grinding process based on the material, component geometry, and the required dimensional and surface properties.

By combining this with other manufacturing processes, we can coordinate different machining steps. Upon request, we can also handle the subsequent assembly.