ROCHO INDUCTION offers high frequency quenching technology for the inner wall of the workpiece to increase the surface hardness and service life of the workpiece. High frequency hardening equipment is suitable for quenching workpieces inner wall such as concrete pump pipe, cement pump pipe, gear inner ring and mould bore.

ROCHO INDUCTION has designed a high-frequency induction quenching process suitable for automobile drive shaft flanges. Through the design of the inductor, the size of the gap, and the process parameters such as heating and cooling time, the drive shaft is induction quenched to improve its hardness, wear resistance and service life.

ROCHO INDUCTION offers coreless rolls induction heating quenching processes and roll quenching machines with high load capacity (workpiece weight up to several tens of tons, workpiece length up to 6 metres), mainly used for the surface quenching of heavy rolls and long thick shaft parts. The machine has manual-automatic operation and is suitable for the production of single and batch parts.

ROCHO INDUCTION provides high-strength bolt heat treatment process and bolt induction  heating equipment, bolt forging equipment, bolt induction hardening equipment. After bolt heat treatment process, the hardness, wear resistance, strength and service life of the bolt will be greatly improved .

ROCHO INDUCTION provides chain heat treatment solutions, through induction hardening, annealing, normalizing, tempering, carburizing, nitriding, and other process, the wear resistance and hardness of chains can be effectively improved.

ROCHO INDUCTION leads the way in crankshaft hardening technology and offers the crankshaft hardening equipment. Our engineers have 12 years of experience in crankshaft production and have determined the optimum process parameters through crankshaft deformation control, new inductor design and manufacture, and rounded quenching tests to meet the requirements of hardened layer depth and uniform hardened layer, improving the fatigue strength of the crankshaft.