Claw vacuum pump

Pump housings EN-GJL-250 |
Claws 1.4021 (X20Cr13)

Initial situation at the customer

Claw vacuum pump

  • High tool costs due to inflexible tool solutions in series production
  • Significant amount of machining in claw production creates massive cost pressure

Special features of this solution

  • Low cutting material costs thanks to a solution with indexable inserts
  • Combination tools and MAPAL fine boring technology for optimal process design and adherence to critical form and position tolerances without additional tools
  • Large standard range of solid-carbide end milling cutters offers high degree of economic efficiency for trochoidal milling of challenging workpiece materials
  • Soft-cutting tangential indexable insert requires less spindle power

Pump housing

  • Roughing

    Roughing

    Circular milling cutter 

    • Circular milling cutter with tangential indexable inserts
    • High degree of flexibility for different part variants when roughing the pump chamber bores

Claws

  • Trochoidal milling cutter

    Trochoidal milling

    OptiMill-Uni-HPC-Finish 

    • Standard solid-carbide milling cutter
    • Short machining times during trochoidal milling processes when roughing and finishing external contours

  • Trochoidal milling

    Trochoidal milling

    OptiMill-Tro-Inox

    • Standard solid-carbide milling cutter
    • Short machining times during trochoidal milling processes when roughing and finishing external contours

  • Fine boring

    Fine boring

    Fine boring tool

    • Multi-stepped fine boring tool guarantees optimal form, positioning and diameter tolerance of bearing bores

Claw tool life

Advantages

  • High degree of flexibility for many variants – six different part sizes possible with a single tool concept
  • Reduced tool costs
  • Machining process for the claws significantly reduced
  • Optimised, economical end-to-end process by MAPAL