Heat treatment
All products we supply to our customers are heat treated by our internal capacities, while meeting strict quality criteria for microstructure and hardness. The process of heat treatment of forgings is constantly monitored and each production batch is thoroughly checked in our laboratories for characteristics defined by the customer. The products are delivered to customers without scales, any need for shot blasting is provided by STEM devices.
The following aggregates are in our portfolio:
soft annealing
Capacity: 900 t / month
Manufacturer: Aichelin – Austria
normalization annealing
Capacity: 1050 t / month
Manufacturer: Realistic, Czech Republic
normalization / quenching & tempering
Capacity: 250 t / month
Manufacturer: ZEZ Praha
normalization annealing
Gas furnace capacity: 150 t / month
Electric furnace capacity: 150 t / month
Hardening and tempering (D max 250 mm × 300 mm)
Refining (D max 500 mm x 650 mm)
Annealing (D max 700 mm x 1800 mm)
Possibility of heat treatment of all types of material of class 11 to 19
Bainitic hardening of bearing rings (D 20 – 100 × 120 mm)
Martensitic hardening of bearing rings
Both types of hardening are performed in salt chloride baths.
Cementation (D max 500 mm x 650 mm)
Nitridation (D max 400 mm × 400 mm)
The cementation is carried out in a cyanide salt bath. The nitridation is performed in a gaseous environment of dissociated ammonia.