PT'ZM manufactures track rollers for a wide range of excavators and bulldozers, fully compatible with major global equipment brands
Our track rollers are engineered for reliable performance in demanding working conditions, providing resistance to extreme temperatures and harsh environments. They are designed to withstand uneven ground surfaces and abrasive materials commonly encountered in mining sites such as coal, stone, aluminum, river sand, jade, and gold mining operations.
Our track rollers are engineered with carefully selected materials and advanced processing techniques to ensure long-lasting performance:
The roller is made from forged 40MnB2 high wear-resistant boron steel, heat-treated to a surface hardness of HRC 48-55 with a hardening depth of 8-10mm, delivering excellent wear resistance.
The center shaft is forged from 42CrMo alloy steel, with a surface hardness of HRC 48-55 and core hardness above HRC 28, providing both wear resistance and high fracture toughness.
The shaft surface is precision polished by CNC machining to minimize wear on the internal copper bushing during operation.
Pure copper bushings are used internally to enhance wear resistance, while high-density sealing rings protect the internal structure from dust, sand, and moisture intrusion.
Manufacturing Process
We manufacture track rollers strictly in accordance with original equipment specifications, utilizing high-precision CNC machining to ensure dimensional accuracy fully consistent with OEM parts.
In addition, friction welding is applied during roller body assembly that not only meets the strict material strength requirements but also offers an environmentally friendly solution that enhances both structural integrity and overall appearance.
The use of CNC lathes ensures a smooth roller surface finish, further contributing to stable operation and reduced internal wear during long-term use.
The roller body undergoes heat treatment to achieve a surface hardness of HRC 48-55, with a hardening depth of 8-10mm for superior wear resistance.
The internal surface of the roller body is smooth and designed to be free from dust.
Unlike conventional welding, which may cause cracking, porosity, or leakage, friction welding eliminates these defects while delivering a cleaner and more consistent appearance.
The center shaft is forged from 42CrMo alloy steel, heat-treated to a surface hardness of HRC 48-55, with a core hardness exceeding HRC 28, providing high wear resistance and excellent fracture toughness.
Pure copper bushings are used to improve temperature resistance and wear performance during continuous operation.
The copper bushings are securely fixed to the shaft with rivets, preventing loosening over extended service periods.
What is the warranty period for the undercarriage components?
We provide a 12-month warranty for all undercarriage system components.
Is there a minimum order quantity for undercarriage parts?
There is no minimum order quantity for standard products, orders can be placed even for small or single-unit quantities.
Do you accept custom manufacturing requests?
Yes. We can produce customized components based on detailed technical drawings or samples provided by the customer.
Are your product dimensions identical to the original parts?
All undercarriage parts are manufactured strictly according to OEM 1:1 dimensions and technical specifications to ensure full compatibility.
