Technology

PÉROVNA ÚSTÍ n. L. Ltd. produces springs on CNC winding and shaping machines. We use special tools for the manual production of springs.

Winding and shaping

It is provided on CNC automatic machines.

Straightening

The wires are straightened on a straightener from company WAFIOS.

Grinding of the ends

The accuracy of spring grinding is guaranteed by a CNC semi-automatic grinder from company DORN (Germany). Smaller quantities are grounded on hand grinders.

Thermal processes – heat treatment

Furnaces are used to remove tension after winding or shaping of springs.

Anti-corrosion surface treatment

Surface treatment is provided externally with stable and proven suppliers.

Zinc plating (blue and yellow)

Nickel plating

Comaxit

Oil preservation