Komatsu Mining Excavators PC1250 Spare Part Track Adjuster Assembly
This Komatsu PC1250 track adjuster assembly delivers reliable track tensioning for large mining-class excavators, offering improved recoil absorption, stronger sealing, and exceptional durability under continuous heavy-load operation.
| 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 Komatsu PC1250 is widely used in mining, quarrying, and large-scale earthmoving, where machines operate in long cycles and constant heavy loads. In such environments, track tension is far more than basic maintenance—it directly affects track wear, undercarriage stability, and machine efficiency. Our PC1250 Track Adjuster Assembly is engineered to handle these extreme demands, providing smooth, consistent tensioning throughout the equipment’s operating life.
Robust Structure Built for High-Load Excavation
Unlike adjusters designed for mid-size machines, the PC1250 system uses reinforced cylinders, thicker wall tubes, and oversized recoil springs to ensure it can withstand repeated shock loads. The adjuster housing is precision-machined from high-strength alloy steel that resists deformation even after prolonged operation in rocky, abrasive environments.
The internal sliding components maintain a tight tolerance that keeps the rod movement smooth and stable, ensuring tension is applied evenly across the track chain.
High-Pressure Cylinder with Reliable Sealing Performance
Large excavators generate strong recoil forces when the machine turns or hits obstacles. To handle this, the PC1250 adjuster cylinder uses a heavy-wall design paired with multi-layer sealing systems, preventing hydraulic leakage even under fluctuating pressure.
The chrome-plated piston rod enhances corrosion resistance and reduces surface wear, helping extend the lifespan of the seals and ensuring that the adjuster maintains its pressure for long duty cycles without requiring frequent recharging.
Enhanced Recoil Spring for Better Shock Absorption
A strong recoil spring is essential for stabilizing the track in demanding operations. Our PC1250 recoil spring is heat-treated, shot-peened, and stress-relieved to deliver superior elasticity and fatigue resistance. It absorbs impact loads efficiently when the machine is operating on uneven, rocky, or high-impact terrain, reducing the risk of chain stretching, roller shock damage, and unnecessary vibration.
Optimized Sliding Unit for Smooth Track Movement
To keep the track tension consistent, the sliding assembly must operate with minimal friction. The PC1250 adjuster uses a precision-honed inner surface combined with wear-resistant bushings to minimize scoring and drag. This ensures that the piston rod expands and retracts smoothly, especially important for large machines where any irregular motion can cause premature wear on the track chain and idler.
Manufacturing Quality and Inspection
Each adjuster assembly undergoes pressure testing, dimensional checks, and spring fatigue analysis. The hydraulic cavity is inspected with non-destructive testing methods to ensure it has no cracks or internal defects. Before packaging, every unit is charged, compressed, and calibrated to ensure proper initial tension and leak-free performance.
Perfect Fit for Komatsu PC1250 Undercarriage Systems
This assembly is built to the specifications of the PC1250 platform, ensuring precise compatibility with the machine’s idler, track frame, and recoil box. Installation is straightforward, and the adjuster matches OEM geometry for accurate alignment and predictable performance under heavy loads.
If you require other variants or models, we can customize track adjuster assemblies according to specific machine dimensions or OEM codes.
| 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.
Maintenance Recommendations
While the PC1250 adjuster is engineered for long service cycles, regular inspection helps extend its life. Operators should check for hydraulic oil seepage around the rod seals, verify the recoil spring is not overly compressed, and remove packed mud or rocks that may affect the adjuster’s sliding motion. Maintaining proper tension
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.
