Undercarriage Parts/Liner Shoes

Products & Range Coverage
A&S MACHINERY CO., LTD. delivers an extensive inventory of specialized liner shoe components within our undercarriage parts catalog to support diverse heavy-duty equipment. Our product lineup covers a broad range of machine series and track shoe configurations, ensuring that every component meets rigorous Komatsu standards for structural performance and preventive maintenance:
• Machine & Heavy-Duty Track Shoe System Compatibility: Engineered for a broad range of Komatsu excavators and bulldozers, our liner shoe 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 Shoe Range: 1. Heavy-Duty Liner Shoes: Designed to withstand 100-ton ground reaction forces and heavy steering shear impacts, featuring deep-hardened grouser bar designs; 2. Multi-Grip Configurations: Single-grouser shoes for bulldozers providing exceptional traction and tear resistance for severe rock ripping, alongside triple and double-grouser shoes for excavators balancing steering flexibility, ground protection, and anti-skid capabilities; 3. High-Tensile Bolts & Nuts: Grade 12.9 high-strength alloy steel fasteners engineered with extreme tensile and shear resistance for secure structural connections.
• OEM & Aftermarket Options: Certified original equipment manufacturer Komatsu liner shoes alongside high-performance aftermarket alternatives featuring reinforced wear-resistant alloy formulas, delivering 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 liner shoe 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 thousands of liner shoes and high-strength bolts across diverse pitches 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 liner shoe breakage or wear halting complete machine operations.
• Anti-Rust Coating and Steel Strapping: We implement specialized industrial packaging standards for the metal surfaces and bolt holes of all liner shoes utilizing heavy-duty long-lasting anti-rust agent spraying and industrial-grade moisture-proof wrapping film applied in tight grouped bundles to avoid scatter friction and ensure absolute freedom from large-scale rust during transcontinental ocean freight under salt spray and high humidity environments.
• Heavy-Duty Palletization and Edge Protection: Bulk heavy-duty liner shoe shipments are packed neatly on high-strength export fumigated wooden pallets, locked securely with high-strength steel strapping applied in cross patterns on the perimeter, and reinforced with L-shaped steel corner guards 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 liner shoe quantities alongside matching full sets of Grade 12.9 track bolts, track chains, track rollers, and sprocket rim segments into precise bundled undercarriage maintenance kits, achieving a one-stop purchasing model that pairs heavy structural components with chassis 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 Shoe Durability Solutions: We address extreme jobsite challenges—such as heavy blast rock and high-abrasion iron ore mining—where original liner shoe grousers suffer transverse fracturing or severe edge chipping. We also provide professional engineering upgrades utilizing high-toughness boron alloy steel treated through surface deep induction hardening, delivering exceptional bending fatigue strength and impact toughness.
• Troubleshooting and Maintenance Guidelines: We provide professional diagnostic guidance for undercarriage knocking noises, shoe looseness, or collective bolt shear fractures. This focuses on two critical protocols: 1. Bolt Torque & Cleanliness Protocols: Enforce regular retightening of track bolts using Komatsu torque standards combined with final angle tightening methods. Strictly prohibit installation with mud and sand to prevent insufficient preload and bolt shear, and promptly clear trapped stones from mating surfaces; 2. Shoe Width & Condition Matching: When operating in hard rock mines, technicians must strictly select standard narrow shoes. We explicitly warn against blindly upgrading to oversized wide shoes, which cause excessive cantilever stress and accelerate plate bending and fracture.
• Expert Technical Support & Safety Guidelines: We provide comprehensive documentation, including liner shoe disassembly diagrams, hydraulic torque wrench preload parameter standards, thread anti-seize compound application norms, and visual guides, assisting overseas technical personnel in executing standardized construction.

Call to Action & User Experience
Optimize your machinery structural 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 shoes, liner shoes, track bolts, 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 heavy-duty equipment fleet overhaul spare part lists, including liner shoe assemblies, Grade 12.9 track bolts, track chain assemblies, and track roller groups, 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 travel system experts to assist overseas clients in verifying non-standard liner shoe pitch and bolt hole distance dimensions, designing customized liner shoe reinforcement plans for extreme mining environments, and troubleshooting complex bolt fracture faults, ensuring cross-border procurement runs error-free.