«two in one» brings together expertise in the production of castings and metal-machining with the know-how from other technologies as rewuired. You are always a step ahead of the rest.
 
The unique Swiss manufacturing network «two in one» introduces complementary skills and extensive expertise with a high professional competence into every manufacturing solution. Made in Switzerland - Swiss Quality

Gearbox

Application: gearbox for the main rotor of a helicopter Solution:

  • Unmachined part of high-strength aluminium cast alloy
  • Metal-machining to maximum precision by Knoepfel AG
  • Surface treatment by BWB-Betschart AG, gear box anodized and bichromat compressed, sealing surface yellow chromated Alodine 1200

Back rest

Application: tooth flank grinding machine Solution:

  • Use of a GJS-400 casting material from Benninger Guss AG
  • Metal-machining by Knoepfel AG (manufacturing tolerances for angularity, flatness and concentricity <0.01mm)

Crankshaft

Application: multi-stage, high-pressure compressor Solution:

  • Use of an ADI casting material from Benninger Guss AG
  • Metal-machining by Knoepfel AG
  • Surface hardening by Gerster AG hardening shop
  • Grinding of all shaft seats and crank bearing by Knoepfel AG (manufacturing tolerance = < 2um, roughness Ra 0.2)