Komatsu Excavator Undercarriage Spare Parts Mid Frequency Heat-treatment PC300-6/7/8 Track Roller Bottom Roller
1. What is a roller?
Rollers are crucial components in belt conveyors, utilized in large quantities and responsible for supporting both the conveyor belt and transported materials. Notably, roller costs comprise 35% of a belt conveyor’s overall cost, while they generate over 70% of operational resistance—making their quality indispensable. Rollers are available in two primary materials: steel and plastic.
For Track Rollers, materials like 40Mn2, 40MnB, and 50Mn are selected based on working conditions. The rollers undergo precision forging and normalization before overall heat treatment, achieving HRC52-60 surface hardness with a hardened layer depth of over 7-10mm (HRC45). This ensures exceptional durability, delivering high impact resistance and surface wear resistance on contact surfaces. Equipped with high-quality floating seals and a robust lubricating system, they adapt to diverse climates and temperatures—operating seamlessly in severe conditions ranging from -45℃ to 120℃ while remaining maintenance-free.
2. Track Rollers Excavator Advantages / Features
✔ This manufacturing approach guarantees the rollers against rapid wear issues, significantly extending their service life.
✔ The materials available for Track roller and Carrier roller are 40Mn2, 40MnB, and 50Mn, selected based on working conditions.
✔ Track Rollers are welded first and then precision-machined on vertical CNC turning lathes, eliminating concentricity errors. This process offers unparalleled quality advantages compared to precision machining before welding.
✔ High-quality floating seals and a lubricating system are employed to adapt to diverse climatic and temperature conditions. The rollers can operate under severe working conditions or climates ranging from -45℃ to 120℃, ensuring maintenance-free performance.
✔ The rollers undergo precision forging and normalization before overall heat treatment, achieving a surface hardness of HRC 52-60 with a hardened layer depth of over 7-10mm (HRC 45). This enhances durability, providing high impact resistance and surface wear resistance on the contact surfaces.
3. Production Processes
4. Track Roller Structure
5. Design/Structure/Main Dimensions of Installation
6. Our Advantages
* World-class quality
* Factory sale directly with reasonable price
* Flexible payment terms including T/T, L/C and so on
* Fast delivery within 30 days after contract established
* After-sale services: video technical support,24h online support
7. Hot Sale Products
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SANY SY75C Mini Excavator Track Roller 50Mn Heat-Treated Images
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