Komatsu PC400 Excavator Undercarriage Parts Track Bottom Roller
High-quality Komatsu PC400 track roller designed for heavy-duty excavator undercarriage applications. Manufactured with durable alloy steel, precision heat treatment, and reliable sealing structure for long service life in mining, quarry, and earthmoving conditions.
| 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 track roller is one of the core load-bearing components in the excavator undercarriage system. For large excavators such as the Komatsu PC400, the bottom roller directly supports the machine weight while guiding the track chain smoothly during travel and operation. Under demanding construction environments including mining sites, rock excavation, and long-hour earthmoving work, the durability and stability of the track roller become especially important. Our Komatsu PC400 track roller is manufactured for high-load applications and stable long-term operation. The product is designed to match the original undercarriage dimensions and operating requirements of PC400 series excavators, helping reduce abnormal track wear and improving undercarriage reliability in harsh working conditions.
Manufacturing Process of PC400 Bottom Roller
The Komatsu PC400 track roller is processed through professional heat treatment procedures including quenching and tempering. The roller tread surface achieves enhanced hardness for wear resistance, while the inner material maintains sufficient toughness to absorb heavy impact loads without brittle failure.
Heat Treatment
The roller shell and shaft components undergo professional heat treatment processes including quenching and tempering to improve surface hardness while maintaining internal toughness. This process helps the track roller withstand heavy impact loads, abrasive ground conditions, and long-term operation in mining and construction environments.
Precision Machining Process
After heat treatment, critical parts are processed through precision CNC machining and drilling operations. Areas such as shaft holes, seal seats, and mounting surfaces are carefully machined to ensure dimensional accuracy, smooth rotation, and stable compatibility with the undercarriage system.
Assembly
Each component is assembled under controlled production standards, including the installation of shafts, bushings, floating seals, and lubrication systems. Proper assembly helps ensure smooth roller rotation, reliable sealing performance, and long-term operational stability.
Running Test
Before final finishing, every track roller undergoes multiple inspection and running tests. These include rotational smoothness testing, seal leakage inspection, oil pressure testing, and overall structural checks to verify stable operating performance under working conditions.
Paint Spraying
The completed rollers are cleaned and coated with protective industrial paint to improve corrosion resistance during storage, transportation, and field operation. The surface finishing process also helps maintain a professional appearance and additional protection against moisture and rust.
Packing
Finished track rollers are packed using durable export-standard packaging materials to reduce the risk of damage during transportation. Proper packing ensures product safety during container loading, long-distance shipping, and warehouse storage.
OEM Undercarriage Parts for Komatsu
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| KOMATSU-PC | PC20 | PC30-5 | PC30-6 | PC30-7 | PC30-8 | PC35 | PC40 | PC45 |
| PC50 | PC55 | PC40-5 | PC40-6 | PC40-7 | PC50 | PC55 | PC60-1 | |
| PC60-3 | PC60-5 | PC60-6 | PC60-7 | PC75 | PC100-1 | PC100-3 | PC100-5 | |
| PC100-6 | PC100-7 | PC120-3 | PC120-5 | PC120-6 | PC120-7 | PC150 | PC200-1 | |
| PC200-3 | PC200-5 | PC200-6 | PC200-7 | PC200-8 | PC220-1 | PC220-3 | PC220-5 | |
| PC220-6 | PC220-7 | PC220-8 | PC200LC-3 | PC200LC-5 | PC200LC-6 | PC200LC-7 | PC200LC-8 | |
| PC240 | PC300-1 | PC300-5 | PC300-6 | PC300-7 | PC300LC | PC300LC-5 | PC300LC-6 | |
| PC300LC-7 | PC360-5 | PC360-6 | PC360-7 | PC360LC-5 | PC360LC-6 | PC360LC-7 | PC360LC-8 | |
| PC400-1 | PC400-3 | PC400-5 | PC400-6 | PC400-7 | PC400LC-1 | PC400LC-3 | PC400LC-5 | |
| PC400LC-6 | PC400LC-7 | PC450-5 | PC450-6 | PC450-7 | PC450LC-5 | PC450LC-6 | PC450LC-7 | |
| PC650 | PC750 | PC800 | PC350 | PC700 | ||||
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
OEM Compatibility
This track roller is designed for Komatsu PC400 series excavators and suitable for heavy-duty undercarriage applications in construction, quarry, mining, and earthmoving operations. The product is manufactured according to OEM dimensional standards to ensure reliable installation and stable operating performance.
Compatible models and reference part numbers include:
- Komatsu PC400 Track Roller — 208-30-00210
- Komatsu PC400 Track Roller — 208-30-00211
- Komatsu PC400-7 Track Roller — 208-30-00213
- Komatsu PC400LC-8R Single Flange Track Roller — 208-30-00212
OEM drawings, technical specifications, and fitment confirmation can be provided before order arrangement to help customers verify compatibility with different undercarriage configurations and machine serial ranges.
Application Scenarios
Komatsu PC400 excavators are widely used in heavy-duty construction and mining projects where undercarriage durability is critical. High-quality track rollers help maintain stable machine travel and reduce maintenance frequency under difficult working conditions.
Why Choose Our PC400 Track Rollers?
We focus on manufacturing heavy equipment undercarriage components with stable quality and reliable durability for global aftermarket customers. Our production experience covers excavator and bulldozer undercarriage systems used in mining, construction, and earthmoving industries.
For distributors, equipment repair companies, and undercarriage parts wholesalers, we can also support OEM production and customized solutions according to project requirements.
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.
