Daewoo
Welcome to our Daewoo / Doosan track link category, engineered to provide high-torque power transfer, superior rail rigidity, and long service life for Daewoo / Doosan excavators (including DH55, DH130, DH220, DH225, DH300, DH370, Solar, and DX series). Shengan manufactures precision-forged 35MnB alloy steel track link groups, grease-sealed track chains, and heavy-duty track shoe assemblies. Whether you need standard excavator track chains, split-master link designs for rapid field replacement, or heavy mining-grade chains, our Daewoo track links ensure exact pitch alignment and severe-impact durability.
Contact our technical sales team to request engineering drawings, factory-direct wholesale quotes, or discuss customized track chain specifications for your equipment fleet!
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Daewoo DH300-2 Track link Excavator undercarriage parts
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Daewoo DH55 Track link Excavator undercarriage parts
Premium Daewoo / Doosan Track Link Assemblies & Sealed Track Chains by Shengan
In earthmoving, quarrying, site demolition, and deep trenching operations, the structural durability and seal integrity of your undercarriage track chain determine overall equipment uptime and hourly operating costs. As a specialized heavy machinery undercarriage parts manufacturer, Shengan produces a full line of Daewoo / Doosan track link assemblies engineered from forged high-strength alloy steel to endure continuous heavy impact, severe bending stress, and abrasive soil environments.
Daewoo / Doosan Track Link Category & Application Guide
To assist equipment dealers, fleet operators, and maintenance workshops in selecting the precise track chain configuration, we manufacture track link assemblies tailored for diverse machine weights, operating environments, and pitch standards:
| Track Link Category | Material & Heat Treatment | Application & Operating Environment | Key Structural Features |
| Compact Excavator Track Chains | Precision forged 35MnB / 40Mn2 alloy steel | Utility trenching, urban digging (DH55, DH60, DH80, Solar 55, Solar 75) | Polyurethane Duo-Cone seal rings, deep induction-hardened rail heads (HRC 52–58) |
| Medium Excavator Track Chains | High-tensile forged 35MnB boron steel | General excavation, road building (DH130, DH150, DH220, DH225-7, DX225) | Extended pitch accuracy, high pin retention force & smooth tracking motion |
| Heavy Mining Track Link Groups | Forged alloy steel with deep hardened layer | Quarrying, mining, severe rock digging (DH300, DH370, DH420, DX300, DX380) | Extra-tall rail profile, reinforced link strut geometry & anti-mushrooming rail heads |
| Split-Master Link Track Chains | Forged 35MnB alloy steel | Fast jobsite replacement & quick track shoe servicing | Interlocking diagonal master link design allowing installation without hydraulic presses |
OEM Compatibility: Daewoo / Doosan, Caterpillar, Komatsu & Fleet Versatility
Minimizing maintenance downtime across multi-brand equipment fleets requires exact dimensional precision. Shengan track link assemblies are manufactured to strict OEM tolerances, seamlessly pairing with our complete range of undercarriage parts across leading global brands:
| Machinery Brand | Popular Models Matched | Undercarriage System Compatibility |
| Daewoo / Doosan | DH55, DH150, DH220, DH225, DH300, DX225, DX300 | Direct replacement for OEM track links; |
| Caterpillar (Cat) | Cat 320, 325, 330, 336, 349 / D6N, D8T | Compatible with our Caterpillar track link groups and track rollers |
| Komatsu | PC120, PC200, PC300, PC400 / D65, D85 | Matches our Komatsu track link groups and front idlers |
| Hitachi | EX120, EX200, ZX120, ZX200, ZX330, ZX470 | Fully interchangeable with Hitachi track link assemblies |
Advanced Forging Metallurgy & Precision Heat Treatment
Pitch elongation and link rail surface galling lead to sprocket tooth mismatch and accelerated roller wear. Every Shengan Daewoo / Doosan track link group operates in perfect harmony with your track rollers, carrier rollers and custom sprocket through precise manufacturing controls:
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Forged 35MnB Boron Steel Construction: Closed-die precision forging aligns steel grain flow along link profiles, eliminating internal porosity and maximizing torsional fatigue strength.
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Differential Rail Head Induction Hardening: Track link rail surfaces undergo medium-frequency induction quenching (HRC 52–58, hardened depth 8mm–12mm) to prevent rail head surface chipping and uneven wear.
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Precision Pin & Bushing Bore Machining: Link bores are micro-machined on multi-station CNC centers to ensure exact pitch distance, preventing grease leakage and internal pin-bushing wear during extended operating hours.
Custom Track Chain Engineering & OEM Manufacturing
For specialized applications, high-abrasion quarry environments, or custom crawler chassis builds, Shengan offers end-to-end OEM/ODM track link manufacturing:
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Tailored Link Specifications: Custom link pitch dimensions, modified bolt-hole patterns for specialized track shoes, and heavy-duty pin/bushing diameter options.
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Swamp & Specialty Configurations: Extended pitch chains for amphibious excavators, forest harvesters, and low-ground-pressure (LGP) crawler builds.
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FEA Structural Analysis & Prototyping: Every custom track link profile undergoes Finite Element Analysis (FEA) to verify stress distribution across link struts and pin bores prior to mass production.
Quality Assurance & Factory Direct Wholesale
Why global machinery dealers, contractors, and undercarriage distributors choose Shengan:
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100% Magnetic & Ultrasonic Inspection: All forgings undergo Ultrasonic Testing (UT) and Magnetic Particle Inspection (MPI) to guarantee zero structural cracks or internal defects.
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Factory-Direct Pricing: Direct manufacturing from our factory eliminates intermediary fees, delivering maximum cost efficiency to OEM and aftermarket buyers.
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Heavy-Duty Export Packaging: Export-grade steel-strapped wooden pallets, anti-corrosion protective coatings, and full shipping support to over 60 countries worldwide.