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Metal and Metal processing

Supplier requirements for metal and metal processing like milling parts and casting parts, springs, stamping parts and more.


Milling part

  • Easy to complex parts
  • High quantity of variants
  • Used materials: brass, bronze, aluminium or stainless steel
  • Produces out of bar and flat material, cast material, forged material
  • 1 to 100.000 pieces
  • Surface treatment: nickel-plated, passivized, electro polished, black anodized, powder-coated

Casting parts

  • Used materials: bronze, aluminium cast, grey cast iron and gunmetal
  • 1 to 20.000 pieces
  • Part weight: 5 g to 12 Kg
  • Surface treatment: passivized, electro polished, black anodized, powder-coated

Special Requirements / Certificates

  • Partially with 100%-leak test
  • Normally the parts have to deliver with 2.2 respectively 3.1-certificate
  • Materials according to drinking water approval DIN 50930-6

Stamping parts

  • E.g. pins, pin terminal, grounding conductor, further electrical components, discs, coil flux guide
  • Easy to complex stamping parts and stamping and bending parts
  • Riveted single metal sheets up to punch-packed parts
  • Used materials are electric strip, cold rolled strip, brass-, bronze or stainless steel strip
  • 5.000 to 1.000.000 pieces
  • Surface treatment: silver-plated, nickel-plated and zinc-plated


  • Compression and tension spring
  • Cylinder-, conical-, disk springs and also wire bending parts
  • Different types of spring ends (closed and grinded, closed)
  • Wire diameter from 0,1 - 15 mm
  • Spring steels (after DIN EN 10270 Teil1): SH, FDSiCr, VDSiCr and 1.4310
  • 100 to 500.000 pieces
  • Surface treatment: oiled, oiled and phosphated, Delta Tone, mechanical zinced

Tubes and Fittings

  • Tubes after DIN 11850 line 1, 2 and 3 and DIN 11866 line A, B and C
  • Clamps + fittings after DIN 32676 line A, B and C and ASME BPE
  • Flanges
  • Tube forming parts / tube forming like e.g. hydroforming
  • Material: 1.4305, 1.4404 und 1.4435
  • Small to middle quantities
  • Surface treatment: metallic bright, electro polished

        Special requirements / certificates

  • Sometimes we need the 1.4435 material with ASME BPE and BN2 contented in the 3.1 certificate.

Deep-drawn parts

  • Mostly very complex deep-drawn parts, difficult drawing rate
  • Mostly very thin wall thicknesses 0,1 - 0,5 mm
  • Small tolerances
  • 50.000 to 1.000.000 pieces
  • Mostly stainless steel (1.4303, 1.4404)

Surface treatments (metal parts)

  • Electro polishing, mechanical polishing, coatings (for example PTFE, powder coating), nickel-plating, heat treatment, tempering
  • Parts will be sent to you in advance
  • Mostly small lot sizes

        Special requirements / certificates

  • Electro polishing with inside cathode

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