Undercarriage Parts/Links

Products & Range Coverage
A&S MACHINERY CO., LTD. delivers an extensive inventory of specialized track link components within our undercarriage parts catalog to support diverse heavy-duty equipment. Our product lineup covers a broad range of machine series and structural track configurations, ensuring that every component meets rigorous Komatsu standards for undercarriage performance and preventive maintenance:
• Machine & Heavy-Duty Track Chain System Compatibility: Engineered for a broad range of Komatsu heavy-duty excavators and bulldozers, our track chain solutions ensure exact material strength ratings, dimensional tolerances, and structural interface definitions for a 100% perfect match, rapid replacement, and factory-grade performance.
• Complete Heavy-Duty Track Link and Chain Range: 1. Track Chain Assemblies: Designed with deep-hardened rail surfaces to withstand hundreds of tons of traction pull and severe ground twisting distortion; 2. Master Links & Track Link Rails: Crafted as core structural components to endure alternating high-load friction and determine undercarriage operating lifespan; 3. Pins, Bushings & Sealed Track Components: Engineered to secure track links, continuously block fine abrasive sand, and preserve long-term internal bushing lubrication.
• OEM & Heavy-Duty Aftermarket: We offer certified original equipment manufacturer Komatsu track link parts alongside rigorous high-performance aftermarket alternatives featuring reinforced wear-resistant alloy material formulas, delivering exceptional operational reliability and extended service lifespan at a cost-effective procurement point for global clients.

Supply Chain & Logistics
We maintain a robust operational infrastructure designed to support global track link component procurement through direct supply channels, delivering reliable stock availability and rapid dispatch to build trust with international equipment owners and repair facilities.
• Massive Inventory and Cross-Reference: We maintain large-volume stock of tens of track chain assemblies and loose link sets matching Komatsu mainstream excavators and bulldozers. Backed by barcode-enabled intelligent warehousing and Komatsu cross-reference databases, we guarantee precise matching and immediate dispatch upon order confirmation to fulfill routine maintenance and rapid replenishment needs for overseas fleet workshops and minimize equipment downtime caused by chain breakage or wear-through halting complete machine operations.
• Anti-Rust Coating and Moisture-Proof Wrapping: We implement specialized industrial packaging standards for the rail surfaces, bushing outer diameters, and connection holes of all track chain assemblies and links utilizing heavy-duty long-lasting anti-rust agents and thick-walled industrial moisture-proof wrapping film for multi-layer tight packaging, eliminating loose component friction to ensure zero metal oxidation during transcontinental ocean freight under salt spray and high humidity environments.
• Heavy-Duty Palletization and Steel Strapping: Bulk heavy-duty track chain assembly shipments are wound and stacked neatly on high-strength export fumigated wooden pallets, locked securely with multiple strands of high-strength cross-applied steel strapping, and secured to the wooden pallet to guarantee absolute safety during long-distance transcontinental transport under extreme cargo handling jolts without package splitting.
• Consolidated Sourcing for Undercarriage Overhaul Kits: We support overseas clients by consolidating large track chain assemblies alongside matching full sets of sprocket rims, track rollers, carrier rollers, and track shoes into precise bundled undercarriage maintenance kits, achieving a one-stop purchasing model that pairs undercarriage service supplies while significantly reducing comprehensive logistics costs for overseas workshops.

Engineering Solutions & Technical Support
Our technical framework focuses on resolving field-level operational challenges to eliminate equipment downtime, moving beyond simple parts distribution to deliver comprehensive engineering and service capabilities for asset health monitoring reliability.
• Application-Specific Track Chain Durability Solutions: We address extreme jobsite challenges—such as heavy blast hard rock and high-abrasion open-pit iron ore—where original track links suffer rapid rail surface wear or link cracking under frequent high tensile shocks. We also provide professional engineering upgrades utilizing high-purity boron alloy steel treated with deep induction hardening processes, delivering exceptional surface hardness and tough cores for heavy-duty track chains.
• Troubleshooting and Maintenance Guidelines: We provide professional diagnostic guidance for issues like rhythmic undercarriage knocking noises or sprocket jumping and slipping during gear shifts. This focuses on two critical protocols: 1. Pitch Wear & Sprocket Matching: Technicians must regularly measure total length across multiple links to evaluate wear elongation—strictly prohibiting exceeding manufacturer percentage limits—while inspecting sprocket rim wear to prevent new chains pairing with worn sprockets from accelerating wear; 2. Mud Clearance & Tension Control: Service technicians must wash out internal mud and debris from track links immediately after operating in cohesive soils, strictly prohibiting mud caking from causing abnormal increases in chain tension and accelerating bushing wear.
• Expert Technical Support & Safety Guidelines: We provide comprehensive documentation, including track chain disassembly diagrams, master pin pressing specifications, track tension adjustment standards, and visual guides, assisting overseas technical personnel in executing standardized construction.

Call to Action & User Experience
Optimize your machinery tracking reliability and maintenance efficiency today by utilizing our interactive tools placed across strategic positions on our platform.
• Multi-Dimensional Intelligent Search and Specification Filtering: Benefit from advanced search functions supporting fast product filtering by Komatsu machine model (such as PC200, PC360, PC400, D65, D155, D275, or D375), product categories (such as track chain assemblies, track links, master links, or undercarriage parts), or original equipment manufacturer part numbers to lock onto target products instantly.
• RFQ and Undercarriage Fleet Quotation: Access our fast-response interactive channels providing one-click bill of materials uploads for fleet Komatsu machinery undercarriage system overhaul lists, including track chain assemblies, sprocket rims, track roller sets, and track shoes, to receive bundled assembly quotations and international logistics freight estimates, fulfilling workshop routine overhauls and extreme condition spare parts reserve procurement requirements.
• Consultation and Support: Utilize our around-the-clock professional technical support channels staffed by senior Komatsu machinery undercarriage and track transmission experts to assist overseas clients in verifying non-standard track link pitches and link counts, designing customized chain reinforcement plans for extreme mining environments, and troubleshooting complex undercarriage abnormal noise and jumping faults, ensuring cross-border procurement runs error-free.