Tack Roller for Komatsu PC50-7 Bottom Roller Undercarriage Part
High-strength PC50-7 bottom roller made from 50Mn/40MnB alloy steel. Engineered for durability, shock absorption, and long service life under Komatsu’s demanding excavation environments.
| 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.
Excavator PC50-7 Bottom Roller Function & Working Principles
The track roller on the Komatsu PC50-7 excavator is designed to support the undercarriage’s weight and guide the movement of the track chains during digging, traveling, and lifting. Its primary function is to distribute weight evenly to the ground and ensure smooth operation across challenging terrain.
In addition, the roller absorbs vibration and impact stress, reducing wear on the track assembly and minimizing maintenance downtime. A durable track roller enhances machine stability, making it crucial for job site productivity.
Track Roller Materials Used and Manufacturing Craftsmanship
Our PC50-7 bottom roller is forged from premium alloy steel—50Mn or 40MnB—offering an excellent combination of wear resistance and mechanical strength. The roller undergoes deep surface hardening treatment and internal toughness optimization. Each piece is precision-machined to ensure perfect alignment, reliable sealing, and consistent load distribution in high-frequency applications.
Track Roller Manufacturing Process
Our PC50-7 track rollers are produced under a rigorous workflow that guarantees quality at every stage. From high-purity raw steel to final packaging, every unit follows standardized procedures.
Production Process Sequence：
Heat Treatment
Machining Process
CNC turning and milling ensure dimensional accuracy
Assembly
Running Test
Simulated load test to verify functionality
Paint Spraying
Anti-rust coating for surface protection
Packing
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 | |||||
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Quality Assurance
Our PC50-7 track rollers go through multi-stage inspections to ensure durability, seal performance, and concentricity. Strict tolerance control and testing procedures ensure consistent product quality and stable field performance.
Komatsu PC50-7 Undercarriage Compatibility
This bottom roller is designed to fit Komatsu PC50-7 series excavators and ensures seamless integration with the undercarriage. Engineered for long-term use, it guarantees smooth travel and uniform load distribution, particularly on compact job sites and tight operating spaces.
Compatibility Highlights:
- OEM-interchangeable for Komatsu PC50-7 models
- Precision-manufactured for exact fit
- Reliable performance across various terrains
- Custom spec available upon request
Maintenance Tips
- Check for oil leakage and roller surface damage regularly
- Replace both left and right rollers together to maintain balance
- Adjust track tension as per manufacturer recommendations
- Clean the undercarriage frequently to prevent abrasive wear
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.
