High volume production (10.000 pcs and more):
Compression springs till the diameter of wire 5mm without grinding of the fronts of the springs
Compression conical springs till the diameter of wire 5mm with or without grinding of the fronts of the springs
With variable ascension till the diameter of wire 5mm with or without grinding of the fronts of the springs
Cone springs till the diameter of the wire 5mm
Tension springs till the diameter of the wire 3,50mm
Shaped springs till the diameter of the wire 1,6mm
Torsional springs simple or double till the diameter of the wire 1,6mm
Serial production (1.000 pcs and more)
Compression springs till the diameter of wire 5mm with or without grinding of the fronts of the springs
Compression conical springs till the diameter of wire 5mm with or without grinding of the fronts of the springs
With variable ascension till the diameter of wire 5mm with or without grinding of the fronts of the springs
Cone springs till the diameter of the wire 5mm
Tension springs till the diameter of the wire 3,50mm
Shaped springs till the diameter of the wire 3 mm
Torsional springs simple or double till the diameter of the wire 3 mm
Small-lot production
All the above mentioned range, depending only on material covering
Used materials:
EN 10.270-1 SM, SH, DH – wire patented for the production of the springs
EN 10270-3 1.4310 NS – stainless steel spring wire
EN 10270-2 VD SICR – valve spring wire
ČSN 426410.4 – drawn steel wire
CuZn37 dle ČSN 423213.51 – brass or bronze 1x to 3x spring-hard wire
Al SI 12 – aluminium wire for the electrical industry
All materials are purchased only with a certificate of quality from the manufacturer and acording to customer’s request, a copy of the certificate is attached to the delivery
Surface treatment (coating) of the products:
According to customer needs, we provide by a contractor with certified companies surface treatments of our products:
Phosphating
FeZn yellow chromate
FeZn blue chromate
FeZn C 343
Coating acording to VW 137 50 , TL 233 , Ofl-t 350
Tinning acording to CZ-NACE 25.61