Undercarriage Part DH55 Track Roller for Doosan Mini Excavators
Looking for a reliable DH55 track roller for your Doosan mini excavator? Our high-quality undercarriage part ensures durability, OEM compatibility, and strong performance in compact construction work.
| Material | 50Mn/40MnB |
|---|---|
| Surface Hardness | HRC53-58,deepth: 8-12mm |
| Colors | Black or yellow or customized |
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
The DH55 track roller plays a vital role in supporting the machine's weight and ensuring stable movement across challenging terrains. It maintains track tension, reduces vibration, and ensures smooth track rotation. For mini excavators like the Doosan DH55, this component is especially critical for maintaining balance and maneuverability in confined job sites.
Steel Composition and Heat Treatment Advantages
Crafted from 45# high-carbon steel or 40Cr alloy steel, the DH55 track roller is heat-treated to achieve a surface hardness of HRC 52–58. This enhances wear resistance and extends its operational life. The shaft and bushing undergo precision grinding and induction hardening to ensure long-lasting performance in heavy-duty, compact construction tasks.
How We Manufacture the DH55 Track Roller？
Each DH55 roller is produced with full consideration of its precision and durability. The following is a real shot of the production process in our factory. Each production process is strictly controlled to ensure that each roller has a certain quality guarantee.
Including:
Heat Treatment
The roller body and shaft undergo high-frequency quenching and tempering to achieve a surface hardness of HRC 52–58, enhancing wear resistance and fatigue strength for long-term use in rough terrains.
Machining Process
CNC machining ensures precision on all critical surfaces, including shaft ends, bore diameters, and seal housings. This guarantees a perfect fit, concentric rotation, and smooth installation onto the undercarriage.
Assembly
All components—including shaft, seals, bushings, and O-rings—are assembled in a dust-free environment to prevent contamination and ensure optimal sealing performance under pressure and vibration.
Running Test
Each roller is subjected to a dynamic rotation test to verify concentricity, smoothness, and internal lubrication flow. Any noise, resistance, or oil leakage is checked and corrected before approval.
Paint Spraying
The surface is coated with anti-corrosion industrial paint, often in black or yellow, to protect the roller from rust and harsh environmental exposure during storage and field use.
Packing
Finished rollers are wrapped in anti-rust film and packed into pallets or fumigated wooden crates. Each package is labeled with model, size, and quantity for easy handling and identification.
OEM Undercarriage Parts for Doosan
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| DOOSAN | DH30 | DH35 | DH50 | DH55 | DH60 | DH60-7 | DH80 | DH130 |
| DH130-2 | DH150LC-7 | DH150W-7 | DH170 | DH180 | DH200W | DH210W-7 | DH220LC | |
| DH225LC | DH280LC | DH300LC-7 | DH320 | DH450 | DX60 | DX80 | DX225LC | |
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
OEM Compatibility
The DH55 track roller is designed for 100% compatibility with Doosan’s DH55 series mini excavators. It's fully interchangeable with OEM references and works seamlessly with both original and aftermarket track systems.
Compatible Model
Doosan DH55
Yuchai YC55 (Partial replacement)
Other equivalent mini excavators with 450–500 mm track gauge
Track Roller Maintenance Tips for DH55
To extend the service life of your DH55 bottom rollers:
- Clean the undercarriage regularly
- Monitor for abnormal vibration or oil leakage
- Replace rollers in matched sets when possible
- Avoid long-term idle exposure to water or mud
Frequently Asked Questions About DH55 Track Roller
- Is your DH55 track roller compatible with both Doosan and Daewoo machines?
Yes, our DH55 track roller is fully compatible with both Doosan DH55 and older Daewoo DH55 excavators. It matches the original size and mounting dimensions, ensuring a direct replacement without modifications. - Can I request OEM branding or customized packaging for DH55 rollers?
Absolutely. We support OEM services, including branding, logo engraving, and customized packaging upon request. Please contact our sales team to discuss your requirements. - How long does your DH55 undercarriage roller typically last?
With proper installation and maintenance, our DH55 track rollers provide a working life of 1,200–2,000 hours, depending on your job site conditions and operating habits. - How do you ship DH55 track rollers internationally?
All rollers are treated with anti-rust oil, wrapped securely, and packed in wooden crates. We offer flexible shipping options including LCL, FCL, and express delivery to over 80+ countries worldwide. - What is your warranty policy for DH55 excavator track rollers?
We provide a 6-month warranty covering any manufacturing defects. In case of issues, our after-sales team will provide quick support or replacement based on the situation.
SHIPPING & DELIVERY
At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.
All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.
Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.
We offer flexible global shipping options, including:
- International sea freight for cost-effective bulk transport
- Air freight for urgent orders
- Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments
Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.
Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.
FAQ
Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.
Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.
Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.
Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.
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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
