Volvo EC290 Excavator Undercarriage OEM Track Roller:
High-Precision Bottom Roller for Heavy-Duty Applications
1. What is a roller?
As key functional elements of belt conveyor systems, rollers play a decisive role in overall
operational efficiency.
✔ Functional Role: Rollers serve the critical role of dynamic support for both the conveyor belt and the payload, acting as
indispensable foundational components to sustain uninterrupted
conveying operations.
✔ Cost Significance: Representing 35% of a belt conveyor’s total installation cost (based on standard
operational parameters), roller procurement and maintenance
constitute a substantial portion of the equipment’s life-cycle cost framework.
✔ Energy Performance Impact: Roller assemblies generate over 70% of the system’s total operational frictional resistance, directly
influencing energy consumption levels and long-term operational
cost-effectiveness.
✔ Reliability Criticality: Parameters such as manufacturing precision, sealing integrity,
and material durability directly dictate failure rates (e.g.,
bearing malfunction, premature wear), positioning rollers as a core control parameter in system reliability engineering.
✔ Material Portfolio: The primary material choices remain steel (characterized by high-strength load-bearing capacity, accounting
for ~85% of applications) and engineered plastics (offering corrosion resistance and low-noise operation for
specialized environments). Material selection must be tailored to
conveyanced media properties and environmental conditions.
2. Track Rollers Excavator Advantages / Features
Track roller and Carrier roller materials are selected from 40Mn2, 40MnB, or 50Mn based on operational conditions. Prior to overall heat treatment,
the rollers undergo precision forging with normalizing to achieve HRC52-56 surface hardness and a hardened layer depth exceeding 7-10mm (HRC45). This process ensures the contact surfaces exhibit superior durability, impact resistance, and surface wear resistance.
High-performance floating seals and a robust lubrication system are integrated to adapt to diverse climatic and temperature
environments. The rollers are capable of operating under extreme
conditions or climates ranging from -45℃ to 120℃, requiring zero maintenance for prolonged component reliability.
For Track Rollers, welding is performed before precision machining on vertical CNC
turning lathes, eliminating concentricity errors. This sequential process offers unmatched quality advantages over pre-welding machining methods, guaranteeing resistance to rapid wear and significantly extending
product service life.
3. The Cost-Smart Solution for Mining & Heavy Earthmoving
End Excavator Downtime: Conquer Rock & Slash Costs
Problem (Pain Points):
❌ Rollers Shatter Prematurely on rock-strewn terrain
❌ Spiraling Repair Bills eating your profits
❌ Profit-Killing Breakdowns crippling productivity
Solution (Our PC600 Rollers):
✅ 22% Fuel Savings
Advanced low-resistance design cuts operating costs
✅ Seamless Komatsu Fit
Direct OEM replacement = zero installation headaches
✅ 3X Lifetime vs Standard
*Premium alloys + 3-Year Structural Warranty*
✅ >3,000-Hour Durability
Proven in granite slurry & high-impact conditions
4. Production Processes
5. Track Roller Structure
6. Design/Structure/Main Dimensions of Installation
7. 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
8. Hot Sale Products
