Heavy Machinery Parts Doosan DH300 DX300 Excavators Track Link Chain Assembly for Sale
High-strength track link designed for Daewoo/Doosan DH300/DX300 excavators, offering precise fitment, excellent wear resistance, and long-term durability under heavy-duty excavation tasks.
| Material | 35MnB/40Mn2 |
|---|---|
| Surface Hardness | HRC53-58 |
| 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 track chain (track link assembly) is a critical part of the undercarriage system on the DH300/DX300 excavator. It connects with the track shoes, sprockets, idlers, and rollers to form a continuous track loop. This loop provides the driving force for machine movement, track tension support, and overall stability.
Whether you're working on quarry sites, construction areas, or in long-term earthmoving operations, a high-quality track chain helps:
- Transmit power efficiently from the sprocket to the track shoes.
- Maintain accurate track alignment and prevent derailments.
- Support heavy machine loads during excavation and travel.
- Reduce vibrations, protecting the entire undercarriage system.
Material Selection & Manufacturing Process
To ensure durability and performance, our DH300/DX300 track chains are made from premium alloy steels such as 35MnB or 40Mn2, known for their balance of strength and toughness. The manufacturing process includes:
- Forging & Precision Machining – Each link is forged for internal density, then CNC-machined to ensure tight tolerances.
- Heat Treatment – Components undergo quenching and tempering for a hardened surface (typically HRC 50–56) and a ductile core.
- Pin & Bushing Sealing – Pins and bushings are induction-hardened and fitted with grease or oil seals to minimize internal wear.
- Coating & Assembly – Final assembly includes anti-corrosion coating and pre-lubrication for easy installation.
Flow Chart
We provide authentic visuals of the actual product and manufacturing process:
Track Link Forging & Machining
The raw track links are forged into form, then machined to ensure uniform pitch and hole alignment. Precision is essential for proper sprocket and bushing engagement.
Pin and Bushing
Hardened pins are inserted between the links to create a flexible, load-bearing chain. The sealing system prevents grease leakage and contaminant ingress.
Painting & Surface Coating
After assembly, the entire chain is cleaned and painted with industrial-grade coatings to protect against rust, humidity, and chemical corrosion on job sites.
Final Inspection & Packaging
Before shipping, the chains undergo dimensional checks and torque verification. Chains are then packed securely on wooden pallets or steel frames to avoid deformation.
Pre-Shipment Inspection Support
We provide pre-delivery photos and videos of your actual product so you can:
- Confirm part dimensions and appearance
- Check surface coating and packaging method
- Ensure peace of mind before shipment leaves our factory
Our team will work with you to make sure your order matches exactly what your project requires.
Compatible Models & Fitment Guidance
Our DH300 track chains are precisely built to match the following excavator models:
Compatible Excavator Models:
- Doosan / Daewoo: DH300, DH300LC, DH300LC-3, DH300LC-5, DH300LC-7
- Doosan: DX300, DX300LC, DX300LCA
Also compatible with certain DX300 variants depending on undercarriage frame configuration, sprocket pitch, and track shoe size.
Typical OEM Reference Numbers:
Track Chain Assembly:
- K1007973, K1007974
- 2270-1039, 2270-1040
- 2270-1025 (DX300 early version)
- 2270-1045 (reinforced heavy-duty type)
- 130301-00143 (Doosan catalog reference)
(Please verify the part number with your machine’s serial plate or parts manual.)
If you're unsure, we’re happy to confirm fitment using your machine’s serial number, detailed undercarriage measurements, or drawing. Accurate compatibility helps ensure long service life and reliable performance on site.
OEM Undercarriage Parts for Doosan Excavator
| 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.
Why Choose Our DH300/DX300 Track Chains?
Choosing our track link assembly means you get:
- OEM-Spec Engineering – Pitch, bushing diameter, and hole positioning all match factory requirements.
- Custom Options Available – Standard or sealed/lubricated chains; double flange or single flange versions.
- Rigorous Quality Checks – Dimensional inspections, surface hardness tests, and pre-assembly trials.
- Fast Dispatch & Global Supply – Ready stock for urgent orders with export-standard packaging.
- OEM/ODM Support – Add your logo to the link castings or packaging for brand promotion.
Application Scenarios
The DH300 track chain is ideal for heavy-duty applications such as:
- Rock excavation and quarrying
- Road and dam construction
- Deep trenching and bulk earthmoving
- Harsh terrain operations with high impact load
Its rugged design and sealed components ensure long-lasting service even in muddy, abrasive, or extreme temperature environments.
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.
