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We turn on automatic multi-spindle and single-spindle lathes and CNC bush-type lathes and CNC chucking lathes.

Fine blanking / Stamping / Deep-drawing

Fine blanking enables the production of highly precise parts without finishing and is suitable for almost all types of metals. This method is particularly advantageous for gear or brake components with very tight tolerances.

We have:

  • Fine blanking presses with the following specifications:
  • Press force: 1600 kNt to 8000 kNt
  • Material thickness: 1 to 10 mm
  • Material width: up to 300 mm
  • Material strength: up to 700 N/mm²

Our automatic stamping machines are highly productive and flexible in use.

Automatic stamping machines with the following specifications:

  • Press force: 1600 kNt to 4000 kNt
  • Material thickness: 1 to 8 mm
  • Material width: up to 400 mm
  • Material strength: up to 700 N/mm²


We closely cooperate with our sister company on deep-drawing. See link:

Your advantages:

  • all stamping and forming oils are Chlorine-free
  • Materials processed: Steel, stainless steel, aluminium, each in standard and special grades
  • we make our own tools and construct our own jigs and fixtures
  • own measuring room for fine blanking / stamping
  • production is controlled via an integrated performance measurement system


Our modern processing centres produce complex components with precise surfaces.

Gear cutting

Highly productive hobbing machines produce sophisticated gears for powertrain applications.


Even complicated and complex forms can be realized with utmost precision. We can control interior and exterior spaces with a press force of up to 200 kN.


We use a wide range of furnaces and systems for almost all common hardening process. Our own materials laboratory monitors the quality.

We have:

  • Multipurpose chamber furnaces for carburization and hardening and tempering
  • Retort ovens for nitrocarburization with or without oxidizing
  • Tempering furnaces
  • Induction hardening plants with medium and high frequency

Surface treatment:

  • Manganese and zinc phosphatizing unit


  • Barrel-polishing
  • ECM deburring
  • Abrasive belt grinding
  • Brushing


We use various grinding machines to manufacture components with the highest precision and quality.

We have:

  • CNC-controlled double-sided grinding machines; rotary table and pass
  • Centreless grinding machines; pass and plunge cut
  • CNC-controlled centreless grinding machines with automatic feeding of parts; plunge cut
  • Centreless grinding machine with automatic feeding of parts; plunge cut
  • CNC-controlled grinding machine with CBN grinding wheel


We use a large portfolio of welding equipment of different levels of automation such as TIG, MAG, Arc Force, laser or resistance pressure welding processes. The quality of welded joints is monitored by our own materials laboratory and during production by in-process monitoring of welding parameters.


We use various processes, manufacturing techniques and equipment for the mounting process:

  • fully-linked, highly automated assembly lines
  • Force-displacement monitored assembly processes
  • Automated leak test
  • Assembly units are inspected for function and geometry
  • Laser markings are magnetized and the flux density is checked
  • The worker is guided during the assembly activities, visualization and monitoring via screen


We have automatic straightening plants for welded assemblies or for hardened axially symmetric components (with crack sensor).

Adhesive bonding

SELZER uses adhesive bonding in large series production. We use both, UV-curing single-component adhesives as well as two-component mixing systems composed of resin and hardener. Combining suitable pre-treatment methods, such as laser or plasma cleaning of components, ensures perfect adhesive results.

Examples for adhesive bonding in series production:

  • Bonding of magnetic assemblies to the sensor holders of dual-clutch transmission shift forks
  • Bonding sealing sleeves to the control lever around the brake components

Hot riveting

SELZER uses hot riveting as an extremely economical joining process. This process snaps rivets in plug-in connections under current flow and pressure and generates extremely durable connections. Short cycle times and relatively low equipment costs keep process costs at a low level. Hot riveting and not fusion welding should be used if technically possible and feasible in the existing space.

Cleanliness requirements

Component cleanliness is a technical quality feature in the automotive that must be controlled and documented. The residual contamination test must provide reliable data on product and process quality. The residual contamination analysis of functionally-relevant automotive parts requires special expertise and laboratory equipment. How are tests performed?
Standard-compliant cleanliness analyses of components and assemblies follow established standards:

  • VDA Volume 19
  • DIN EN ISO 16232
  • and according to customer and company standards

SELZER cleans parts and components by liquid extraction. The relevant particles must be washed off by liquid from areas concerned as the functional areas of components and parts are mostly located inside the component or part or are difficult to access. We use ultrasound.

Particle type, size and quantity are analysed. A report is created for each analysis. Images of the largest and second largest metallic and non-metallic particles and of the largest fibre are automatically output.

Other SELZER technologies

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