Track Adjuster Assembly for Komatsu PC200-5 Excavator
Designed for Komatsu PC200-5 excavators, this track adjuster assembly ensures consistent track tension, reduces chain wear, and absorbs shock during heavy operation. Built from high-strength materials with a grease-adjusted mechanism, it’s ideal for challenging terrain and long-term use.
| Piston Rod | 40Cr / 42CrMo (Hard Chrome Plated) |
|---|---|
| Cylinder Body | Q345 / 45# Steel / 40Cr |
| Return Spring | 60Si2Mn / 65Mn Spring Steel |
| Cylinder Head / End Cap | 45# Steel / Cast Steel |
| Grease Nipple & Fittings | Carbon Steel (Zinc Plated) / Stainless Steel |
| 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 adjuster on the PC200-5 excavator serves two key functions: it maintains track chain tension and absorbs shock from rough terrain. It keeps the idler in proper alignment with the track chain, reducing the risk of derailment and maintaining consistent machine tracking. During movement, it compresses and expands to absorb vibrations, contributing to undercarriage longevity and smoother operation.
Key Design Features
Assembly Structure Diagram
This image shows the complete tension spring assembly, including:
- Recoil Spring – Coiled high-tension steel with precision winding to absorb movement
- Cylinder Housing – Heavy-duty forged steel body for housing and guiding the spring
- Front Yoke/Bracket – Connects to the idler wheel and transfers spring force
- Grease Chamber – Allows easy adjustment via grease gun
The diagram below shows how the components connect to form a compact and efficient tensioning system.
Cross-Sectional Sketch
The cross-section reveals the internal layout of the spring, plunger, and grease chamber.
You can clearly see:
- The sealed grease channel that builds pressure against the plunger
- The internal buffer zone, designed to cushion impact from external forces
- Grease seals and bushings for leak-free operation
This view helps users understand why our PC200-5 tensioner delivers stable, low-maintenance performance even under extreme stress.
Material Strength & Precision Engineering
Our PC200-5 track adjuster assembly is manufactured using wear-resistant materials and optimized for durability:
- Piston Rod & Cylinder: Forged from 40Cr or 45# alloy steel, heat-treated to HRC 50–55 for high surface hardness and corrosion resistance
- Recoil Spring: Fabricated from premium spring steel (such as 60Si2Mn), precision-coiled and tempered to resist fatigue and maintain resilience under repetitive load cycles
- Grease Chamber System: Allows simple on-site adjustment of tension using a standard grease gun, minimizing downtime
- Dust Seals & O-Rings: High-quality sealing system ensures protection from mud, water, and debris
- Anti-Rust Coating: Final layer of industrial paint prevents oxidation and rust even in damp conditions
OEM Undercarriage Parts for Komatsu Excavator
| 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.
Fitment & OEM References
This track adjuster assembly is compatible with:
Komatsu PC200-5, and often interchangeable with PC200-3 / PC200-6 depending on configuration
Also adaptable for PC220 series with similar undercarriage layout
Common OEM Part Numbers (please confirm via parts manual or tag):
- 20Y-30-00020
- 20Y-30-00021
- 20Y-30-00022
We support technical matching by machine serial number, drawing, or customer sample if necessary.
Why Choose Our PC200-5 Track Adjusters?
- Reliable OEM Fitment – Engineered with exact tolerance for easy replacement and compatibility
- Heavy-Duty Recoil Spring – Maintains tension under shock and vibration
- Fast Delivery & Stock Assurance – PC200-5 is a high-demand model with consistent inventory
- Custom Branding Available – Add your logo and packaging for OEM/ODM support
- Photo & Video Inspection Service – Confirm product visually before shipping for peace of mind
Pre-Shipment Support
Before delivery, we provide:
- Photos & videos of the actual product
- Packing confirmation
- Inspection checklist
This helps ensure you know exactly what you’re receiving—no surprises, no delays.
Built for Tough Terrain: Application Scenarios
Whether you're working in muddy construction zones, rocky earthmoving areas, or clay-rich trenching environments, the PC200-5 track adjuster ensures track alignment and protection. It withstands high-impact loads and vibration, maintaining excavator stability and improving traction even in challenging conditions.
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.
