TACK consistently maintains the heat treatment standards and processes for track rollers to ensure product quality and extend service life

TACK consistently maintains the heat treatment standards and processes for track rollers to ensure product quality and extend service life.

As the core load-bearing component of the bullDozer track system,track rollersare subjected to high-intensity impact and wear over extended periods. Traditional heat treatment processes struggle to balance hardness and toughness. During Track Roller production,TACK employs a combination of normalising pre-treatment and medium-frequency surface strengthening. Quenching and tempering treatment involves quenching followed by high-temperature tempering, resulting in a uniform sorbitic microstructure in the base material, ensuring overall strength and toughness of the track roller body. Medium-frequency induction heating utilises the skin effect of medium-frequency current to rapidly heat and quench the surface and shaft of the track roller, forming a high-hardness surface layer.  

Following testing, the hardness and hardened layer depth of the critical components of TACK's optimised track rollers have reached industry-leading levels. The surface hardness of the roller body ranges from 53 to 60 HRC, with a hardened layer depth exceeding 7 mm, enabling it to withstand long-term wear from hard objects such as sand and gravel. The shaft section has a hardness of 53 to 58 HRC, with a hardened layer depth of 2 to 3 mm, ensuring torsional strength while minimising the risk of brittle fracture.  

For TACK products inquiries, please contact us via the details below
Manager：Helen
E-mail: helen@tackmachinery.com
Phone: +86 15750936667
Whatsapp: +86 15750936667