Metal Housing for Excavator Proportional Valve
The housing should have no deep drawing lines, scratches, or embossing on its surface. Vacuum annealing should be conducted to eliminate coercivity, followed by zinc-nickel plating.
Case Review
The original housing is designed and manufactured by Thomas Group. Balford employs progressive die stamping to assist China Hengli Hydraulics and all imitation companies. We are very familiar with the continuous progressive die forced thinning deep drawing process.