EX22 Mini Excavator Track Roller Kit - ISO Certified Undercarriage Parts with Heat-Treated Rollers

1. What is a roller?

Rollers hold an essential position in belt conveyor setups. There is a vast array of roller types, and they are utilized in high volumes. Their core functions consist of sustaining the conveyor belt and bearing the weight of the materials in transit. Importantly, rollers make up roughly 35% of the total expense in a belt conveyor configuration. Moreover, during the system's operation, they produce over 70% of the operational resistance, thus emphasizing the crucial importance of roller quality. In general, modern roller designs are fabricated from two principal materials: steel and plastic.

2. ISO Certification: A Mark of International Quality Assurance

What Does ISO Certification Mean for You?

• Material Integrity: Cast from high-grade alloy steel to resist corrosion and impact
• Manufacturing Precision: Engineered using CNC machining for exacting tolerances
• Safety Compliance: Meet or exceed international standards for operational safety

3. Heat-Treated Rollers: Engineered for Extreme Durability

3.1 The Science Behind Heat Treatment

The core of our Pro Kit’s longevity lies in its heat-treated rollers. Unlike ordinary rollers that soften over time, ours undergo a 3-step heat treatment process:

1. Austenitization: Heated to 850°C to dissolve carbon into the crystal structure

2. Quenching: Rapidly cooled in oil to form a hard martensitic structure

3. Tempering: Reheated to 200°C to balance hardness (HRC 55-60) and toughness

3.2 Performance Benefits You’ll Notice

• 30% Longer Lifespan: Outlasts non-treated rollers in abrasive environments

• 50% Better Impact Resistance: Resists dents from rocks and debris

• Smoother Operation: Reduced friction means less strain on your excavator’s hydraulics

Whether you’re working on a gravel quarry, a muddy pipeline project, or a frozen construction site, these rollers maintain their structural integrity—keeping your machine moving forward when others start to fail.

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