Top Description
The Caterpillar track roller is a critical undercarriage component that supports the machine’s weight and guides the track chain during operation.
As a factory-direct undercarriage parts manufacturer, Dingtai provides comprehensive OEM services, delivering precision track rollers tailored to global equipment requirements.
Robust rollers resist extreme impact and abrasive wear, directly preventing unscheduled downtime and eliminating premature roller flange breakage.
With over 20 years of dedicated production experience, our facility is certified to ISO9001 standards, with materials verified by SGS testing.
We utilize high-tensile 35MnB steel and apply advanced deep quenching to achieve a hardened case and a durable, long-lasting core.
Core Selling Points
- 20+ Years Experience: Two decades dedicated to undercarriage manufacturing ensure mature processes and repeatable quality that procurement directors can rely on.
- Global Brand Compatibility: Engineered for direct replacement, our rollers fit Caterpillar, Komatsu, Hitachi, Volvo, and other major OEM equipment without modification.
- Premium 35MnB Material: We forge rollers from 35MnB steel, providing exceptional tensile strength and impact toughness that resists cracking in rocky terrain.
- Deep Quenching & Heat Treatment: State-of-the-art induction hardening penetrates deep into the roller shell, achieving a surface hardness of HRC 50-55 while maintaining core ductility.
Product Grid Introduction
Our catalog of Caterpillar Track Rollers includes various specifications, fully compatible with Caterpillar excavators and bulldozers.
Bottom SEO Long-Form Content
Block A: Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Mn2 high-strength alloy steel |
| HRC Hardness | Surface 50-55, core 30-35 |
| Process | Forging, deep induction quenching, tempering, CNC machining |
| Certification | ISO9001, SGS material report |
| Warranty | 12 months or 2,000 operating hours |
2. OEM & Customization
We manufacture to your exact drawings or OEM part numbers. Custom diameters, boss dimensions, and seal interfaces are produced with zero deviation from specifications.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Excavator | Caterpillar | 320D, 336D, 345C, 349D |
| Bulldozer | Caterpillar | D5, D6, D7, D8 |
4. Delivery & Logistics
We ship directly from our Quanzhou factory, offering competitive ex-works pricing and low MOQs. Standard sea freight ensures predictable lead times for US buyers.
Block B: Technical Features
Floating seals are precision-machined to maintain a constant oil film, preventing contamination ingress and guaranteeing permanent lubrication of the roller shaft.
A bimetal bushing with a steel backing and high-lead bronze lining provides exceptional wear resistance and eliminates shaft seizure under heavy loads.
The integrated thrust collar absorbs lateral forces, protecting the roller body from flange wear and increasing service life by up to 30%.
Block C: Applications
- Hard rock mining and quarrying
- Heavy civil construction and earthmoving
- Forestry and land clearing
- Demolition and scrap handling
- Large-scale agricultural land leveling
Block D: Frequently Asked Questions (FAQ)
- What is the minimum order quantity (MOQ)?
- Typical MOQ is 50 pieces per part number. We accept trial orders of 10 pieces for new inventory partnerships.
- How long is the production and delivery time?
- Standard production is 25–30 days. Ocean freight to US ports adds approximately 15–25 days depending on destination.
- What is the depth of the heat treatment layer?
- The induction-quenched case depth is 8–12 mm, depending on roller diameter, ensuring long wear life without core brittleness.
- Can you match OEM part numbers like 208-30-00520?
- Yes, we produce rollers to full Cat part number references. Provide your target part number for a precise quotation.
- What warranty do you provide?
- A 12-month or 2,000-hour warranty covers manufacturing defects and material failure under normal operating conditions.
- Do you provide material certificates?
- Every shipment includes an SGS or equivalent third-party mill certificate confirming chemical composition and mechanical properties.
- Are the rollers interchangeable with other brands?
- Our rollers are dimensionally interchangeable with Komatsu, Hitachi, Volvo, and other major brands when ordered to the correct part drawing.
Block E: Maintenance Guide
- Inspect roller tread thickness monthly; replace when wear reaches 30% of the original profile to avoid track link damage.
- Check hub oil level via the fill plug every 250 hours; constant oil leakage indicates floating seal failure.
- Monitor bracket bolts for correct torque during every scheduled service to prevent frame misalignment.
- Replace track rollers as a complete set when flange wear exceeds 15% of original height to maintain even track tension.