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Komatsu

Heavy-Duty Komatsu Replacement Track Link Chains

Upgrade your Komatsu equipment with precision-engineered replacement track link assemblies from Shengan . Designed specifically for Komatsu PC excavators and D-series bulldozers, our track chains feature high-tensile 35MnB forged links, deep induction-hardened rail treads, and vacuum oil-filled seals. Eliminate pitch elongation and ensure 100% OEM fitment from PC200 to PC800 and D65 to D275 fleets.

Request Your Komatsu Track Link Quote with your Komatsu machine model, link pitch, or section count to receive instant technical drawings, cross-references, and factory-direct pricing!

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Premium Aftermarket Track Link Chains for Komatsu Excavators & Dozers

Komatsu heavy machinery is renowned for exceptional digging force and hydraulic efficiency, demanding undercarriage components that can endure severe cyclic loads without pitch stretch or pin galling. A worn or elongated track chain on a Komatsu excavator or dozer causes track jumping, rapid wear on sprocket teeth, and excessive strain on carrier rollers. Shengan manufactures OEM-grade replacement track link assemblies engineered to exact Komatsu metallurgical, pitch, and pin-hole tolerances.

Komatsu Equipment Line & Track Pitch Specifications Matrix

To simplify procurement for Komatsu fleet managers and aftermarket distributors, we supply complete track chains matching original Komatsu part numbers, link heights, and pitch specifications:

Komatsu Equipment Line Popular Machine Models Matched Chain Pitch (mm / inch) Sealing & Lubrication Format
Komatsu Compact Excavators PC50, PC78, PC128, PC130 135mm – 171.5mm Heavy grease-sealed polyurethane ring chains
Komatsu Medium Excavators PC200, PC220, PC270, PC290 190mm (7.48 in) Sealed grease or option SALT oil-lubricated chains
Komatsu Heavy Excavators PC300, PC350, PC400, PC600, PC800 215.9mm – 260.35mm Sealed & Lubricated Track (SALT) with metal face seals
Komatsu Crawler Dozers D65, D85, D155, D275, D375 203mm – 279.4mm Heavy-duty forged SALT chains built for continuous ripping

Engineered for 100% Komatsu OEM Interchangeability

Matching the precise track frame geometry and track shoe bolt patterns of Komatsu machines is essential for long-term reliability:

  • Zero-Tolerance Pitch Accuracy: CNC-bored pin and bushing holes ensure precise pitch-circle geometry, eliminating premature track chain slack and sprocket binding.

  • Exact Shoe Bolt Hole Spacing: Link rail bolt seats are precision-machined to match Komatsu track shoe (grouser) bolt dimensions and torque specifications.

  • Complete Assembly Options: Supplied as bare track link chains or pre-assembled track groups with single, double, or triple grouser track shoes bolted on.

Superior Boron Steel Metallurgy & Deep Rail Hardening

Operating Komatsu machines in rocky, muddy, or mining conditions places severe friction on link rail treads. Every Komatsu track chain manufactured by Shengan undergoes strict metallurgical processing:

  • 35MnB Forged Boron Alloy Steel: Hot-forged from premium boron alloy steel to provide exceptional tensile strength and high yield resistance against rail fracturing.

  • Differential Induction Hardening: Link rail tread surfaces undergo deep induction heat treatment (HRC 52–58, 8mm–12mm depth), resisting tread grooving, spalling, and side flange mushrooming.

  • Vacuum Oil-Filled SALT Technology: For heavy Komatsu excavators and dozers, our Sealed and Lubricated Track (SALT) chains feature synthetic oil reservoirs that permanently coat internal pin-and-bushing surfaces, completely eliminating internal dry galling.

Quality Control & Factory-Direct Value for Komatsu Owners

Why Komatsu fleet owners, rental companies, and repair centers source from Shengan:

  • 100% Automated Hydraulic Press Fit: Track pins and bushings are assembled under computer-controlled hydraulic force to guarantee zero pin walking or lubricant leakage.

  • Significant Cost Savings: Factory-direct manufacturing delivers OEM-level structural strength at a fraction of genuine Komatsu dealer prices.

  • Export-Grade Ocean Protection: Bound with high-tensile steel strapping, wrapped in protective anti-corrosion film, and mounted on heavy-duty steel-framed pallets for safe international shipping.

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