Power Train Parts/Tandem Drive

Products & Range Coverage
A&S MACHINERY CO., LTD. delivers an extensive inventory of specialized tandem drive components within our power train parts catalog to support diverse heavy-duty equipment. Our product lineup covers a broad range of machine series and mechanical transmission configurations, ensuring that every component meets rigorous Komatsu standards for power distribution and preventive maintenance:
• Machine & Heavy-Duty Tandem Drive System Compatibility: Engineered for a broad range of Komatsu heavy-duty motor graders, our tandem drive 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 Tandem Drive Range: 1. Tandem Drive Assemblies & Housings: Designed with high rigidity and bending resistance to withstand high torque shocks and severe ground twisting deformation; 2. Tandem Drive Gears & Sprockets: Engineered to endure alternating high loads, maximizing power transmission efficiency and service lifespan; 3. Drive Chains & Shaft Assemblies: Manufactured as high-strength tensile flexible units to connect front and rear wheels and achieve synchronized power transmission.
• OEM & Heavy-Duty Aftermarket: We offer certified original equipment manufacturer Komatsu tandem drive parts alongside rigorous high-performance aftermarket alternatives featuring deep tooth-surface hardening 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 tandem drive 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 tandem drive gears, chains, and assemblies matching Komatsu mainstream motor graders. 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 tandem gear chipping or chain breakage halting complete machine operations.
• Anti-Rust Sealing and Heavy-Duty Palletization: We implement specialized industrial packaging standards for precision gear tooth surfaces, spline bores, and bearing locations of all tandem drive gears, chains, and drive shafts utilizing heavy-duty long-lasting anti-rust oils, thick-walled industrial bubble wrap, and moisture-proof vacuum plastic bags, while metal chains and gears are secured to custom wooden pallets using high-strength steel strapping to ensure zero oxidation or structural deformation during transcontinental ocean freight under salt spray and high humidity environments.
• Heavy-Duty Crated Protection: Bulk tandem drive assembly and heavy gear shipments are packed in high-strength export fumigated wooden crates with custom anti-vibration timber blocks and high-strength bolts suspending heavy units off the container floor to guarantee absolute safety during long-distance transcontinental transport under extreme cargo handling jolts without structural deformation.
• Consolidated Sourcing for Tandem Overhaul Kits: We support overseas clients by consolidating large tandem drive assemblies alongside matching full sets of high-strength support bearings, floating seals, housing fastening bolts, and extreme-condition specialized heavy-duty gear oils into precise bundled tandem maintenance kits, achieving a one-stop purchasing model that pairs powertrain 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 Tandem Durability Solutions: We address extreme jobsite challenges—such as severe rocky roads and high-load mining road construction—where original tandem drive chains suffer excessive elongation and gear edges spall under frequent high-load shocks. We also provide professional engineering upgrades utilizing high-purity aerospace-grade alloy steel treated with deep carburizing and quenching, delivering exceptional tensile strength and impact toughness for heavy-duty gears and chain components.
• Troubleshooting and Maintenance Guidelines: We provide professional diagnostic guidance for issues like heavy metallic knocking sounds inside tandem boxes during travel or steering, or localized high housing temperatures accompanied by lubricant emulsification. This focuses on two critical protocols: 1. Chain Sag & Maintenance Intervals: Technicians must regularly inspect transmission chain sag and wear inside tandem boxes—strictly prohibiting loose chains from causing jumping teeth and fracturing housings—while strictly following Komatsu intervals to replace gear oils and prevent sediment ingress; 2. Floating Seal Installation Cleanliness: Service technicians must ensure absolute cleanliness of metal ring surfaces on floating seals and apply appropriate amounts of lubricant during replacements, strictly prohibiting minor grit from causing seal failure.
• Expert Technical Support & Safety Guidelines: We provide comprehensive documentation, including motor grader tandem drive disassembly diagrams, chain adjustment specifications, housing seam sealant application standards, and visual guides, assisting overseas technical personnel in executing standardized construction.

Call to Action & User Experience
Optimize your machinery power transmission 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 GD555, GD655, or GD675), product categories (such as tandem drive assemblies, drive gears, drive chains, or powertrain parts), or original equipment manufacturer part numbers to lock onto target products instantly.
• RFQ and Tandem Fleet Quotation: Access our fast-response interactive channels providing one-click bill of materials uploads for fleet Komatsu motor grader tandem drive overhaul lists, including tandem drive assemblies, gear sets, heavy-duty chains, floating seal kits, and specialized gear oils, 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 motor grader and transmission experts to assist overseas clients in verifying non-standard tandem drive ratios and chain pitch counts, designing customized transmission reinforcement plans for extreme mining environments, and troubleshooting complex tandem drive noise faults, ensuring cross-border procurement runs error-free.