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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.

  • Machinery TypeMachinery Type
  • Stock ProductsStock Products
  • CapabilitiesCapabilities
  • CertificationsCertifications
  • FAQFAQ
Machinery Type
    1. Excavator Track Rollers
    2. Excavator Track Rollers
      Excavator Track Rollers
      Excavator Track Rollers
    3. Komatsu
      Excavator: PC200 PC300 PC400 PC800 PC1250 PC2000 PC3000
      Caterpillar
      Excavator: E320 E325 E330 E336 E345 E350 E365 E375 E390
      Hitachi
      Excavator: EX200 EX300 EX400 ZX470 ZX870 EX1200 EX1900 EX2600
      Volvo
      Excavator: EC210 EC290 EC360 EC480 EC700 EC750 EC950
    1. Bulldozer Track Rollers
    2. Bulldozer Track Rollers
      Bulldozer Track Rollers
      Bulldozer Track Rollers
    3. Komatsu
      Bulldozer: D20 D31 D39 D50 D65 D85 D155 D275 D375 D475
      Caterpillar
      Bulldozer: D5 D6 D7 D8 D9 D10 D11
Stock Products
  • Komatsu
  • Caterpillar
  • Hitachi
  • Volvo
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Extended Service Life and Superior Durability
Extended Service Life and Superior Durability

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.
  • Manufacturing Process
    The use of CNC lathes ensures a smooth roller surface finish, further contributing to stable operation and reduced internal wear during long-term use.
  • Manufacturing Process
    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.
  • Manufacturing Process
    The internal surface of the roller body is smooth and designed to be free from dust.
  • Manufacturing Process
    Unlike conventional welding, which may cause cracking, porosity, or leakage, friction welding eliminates these defects while delivering a cleaner and more consistent appearance.
  • Manufacturing Process
    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.
  • Manufacturing Process
    Pure copper bushings are used to improve temperature resistance and wear performance during continuous operation.
  • Manufacturing Process
    The copper bushings are securely fixed to the shaft with rivets, preventing loosening over extended service periods.
Packaging
  • Packaging
  • Packaging
  • Packaging
  • Packaging
Certifications

Our heavy equipment undercarriage parts manufacturing operations are fully certified to international management standards, ensuring stable quality, environmental responsibility, and workplace safety:

  • GB/ISO 9001:2015 Quality Management System Certification
  • GB/ISO 14001:2015 Environmental Management System Certification
  • GB/ISO 45001:2018 Occupational Health and Safety Management System Certification
  • GB/ISO9001 Quality System Certificate
    GB/ISO9001 Quality System Certificate
  • GB/ISO14001 Environmental Management System Certificate
    GB/ISO14001 Environmental Management System Certificate
  • GB/ISO45001 Occupational Health and Safety Management System Certificate
    GB/ISO45001 Occupational Health and Safety Management System Certificate
Comprehensive Service
  • In addition to supplying standard specifications, we offer custom manufacturing services based on customer-provided drawings or samples to meet specific equipment requirements.
  • A 12-month warranty is provided for all undercarriage components, supported by dedicated after-sales service to ensure customer confidence.
  • We provide technical support both online and offline, including video-based assistance. When necessary, technical personnel can be dispatched on-site to ensure optimal product performance and long-term reliability during operation.

We provide a 12-month warranty for all undercarriage system components.

There is no minimum order quantity for standard products, orders can be placed even for small or single-unit quantities.

Yes. We can produce customized components based on detailed technical drawings or samples provided by the customer.

All undercarriage parts are manufactured strictly according to OEM 1:1 dimensions and technical specifications to ensure full compatibility.
Let's Talk

Submit an online enquiry or give us a call. Our specialists in undercarriage parts are happy to help you find what you are looking for.

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