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High-load track tensioners, marine-grade bottom rollers, carrier idlers, and hardened master pin systems optimized for coastal sediment and tidal excavation.
Global coastal protection, deep-water port infrastructure expansions, offshore wind farm cable landfall operations, and land reclamation projects demand unmatched ground-bearing performance from crawler excavators. Marine and coastal environments introduce extreme mechanical stresses combined with aggressive chemical degradation: high salinity, continuous wave slamming, highly abrasive quartz beach sand, and saturated subsea silt. In these harsh scenarios, conventional construction undercarriages suffer from rapid galvanic corrosion, bearing seizure, and accelerated shoe track wear.
Modern marine track shoes (also referred to as swamp pads, marsh track pads, or pontoon crawler grouser shoes) are engineered from customized high-yield alloy steels such as 25MnB, 40Mn2, and 40Cr. These alloys are enriched with chromium, molybdenum, and boron, followed by cutting-edge induction through-hardening that delivers a core hardness of HRC 32-38 and surface wear-layer hardness exceeding HRC 50-56. This metallurgy provides the critical ductile core needed to absorb dynamic shockloads when walking over submerged granite rip-rap, while defending the exterior against high-abrasion beach sand.
Low ground pressure (LGP) track shoes spanning widths from 800mm to 1400mm distribute high excavator tonnage evenly across saturated tidal mudflats and soft marine clays, eliminating catastrophic track sinkage and machine immobility.
Proprietary floating dual-cone sealing systems integrated into track rollers, carrier pulleys, and front idlers lock in synthetic marine grease while preventing the infiltration of micro-abrasive saltwater slurries and sand particles.
Specialized heat-treated 12.9 grade track shoe bolts and nuts featuring Dacromet or zinc-nickel anti-seize electroplating withstand severe saltwater electrolysis, cyclic torque reversals, and extreme track shoe bending forces.
From amphibious dredging to breakwater armor placement, explore how robust track shoes ensure non-stop uptime.
Amphibious and pontoon-mounted excavators operate directly within intertidal mud zones. Specially curved triple grouser shoes and self-cleaning mud holes evacuate sticky marine sludge instantaneously, ensuring zero track clogging and continuous drive traction.
Positioning 20-ton tetrapods and massive granite rip-rap stones on exposed coastlines subjects crawler tracks to violent point loads. Reinforced single and double grouser track shoes provide rigid structural stiffness, preventing pad warping and link separation.
Excavators equipped with long-reach booms dig high-precision shoreline trenches for subsea energy lines. Heavy-duty sealed and lubricated track chains (SALT) prevent internal pin and bushing dry friction even when fully submerged in ocean tides.
| Parameter / Feature | Standard Construction Track Shoes | Marine & Coastal Heavy-Duty Track Shoes | Industrial Advantages |
|---|---|---|---|
| Material Formulation | Standard Rolled 35MnB / 45# Carbon Steel | High-Hardness Modified 25MnB / 40Mn2 / 40Cr Alloy | +65% Higher Impact Toughness in Sub-Zero Waters |
| Surface Wear-Layer Hardness | HRC 42 - 48 (Quenched) | HRC 52 - 58 (Deep Frequency Induction Hardened) | Superior Resistance to Quartz Sand Abrasion |
| Fastener Protection | Black Oxide / Phosphate | Grade 12.9 Dacromet / GeoMet Anti-Corrosion Coating | 1500+ Hours Salt Spray Test Endurance |
| Sealing Technology | Standard Nitrile Rubber O-Rings | Heavy-Duty Floating Duo-Cone Metallic Seals | 100% Zero Saline Water Ingress to Rollers |
Our factory's main products include: track roller (bottom roller), carrier roller (top roller), sprocket, idler, track link assembly, track shoe, bushing & pin, bucket teeth, and high-strength bolts and nuts.
Forged master links and sealed link groups ensuring flawless pitch accuracy under saltmarsh load conditions.
Precision induction hardened tread rims fit for PC200-5, PC200-7, PC200-8 marine duty excavators.
Heavy-duty top carrier roller supporting heavy track loops over high-friction coastal worksites.
We manufacture customized swamp pads, wide triple grousers, and pontoon tracks.
Contact Engineering
Quanzhou Hesen Machinery Industry Co., Ltd., located in Fujian Province, is a premier Chinese heavy machinery component manufacturer founded in 1990. With more than three decades of specialized industrial experience, Hesen operates as a technologically integrated enterprise combining R&D engineering, precision forging, state-of-the-art heat treatment, automated CNC machining, and comprehensive quality assurance testing.
Our state-of-the-art production base covers over 200,000 square meters, supported by 1,200+ skilled personnel and 65+ specialized R&D engineers. We maintain extensive automated warehousing facilities stocked with replacement parts to ensure rapid global order fulfillment. Our products serve heavy marine, coastal excavation, mining, and earthmoving projects across Europe, the Americas, Southeast Asia, and the Middle East.
Learn More About HesenYears Industry Experience
Factory Area (sqm)
Skilled Employees
R&D Engineers
Delivering certified undercarriage components and customized coastal heavy machinery track systems to construction contractors, equipment dealers, and dredging operators across 80+ countries worldwide.
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We warmly welcome partners and friends from all over the world to visit our manufacturing facilities and international trade showcases.
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Explore our complete catalog of OEM-specification front guide wheels, high-tensile track rollers, top carrier rollers, master pins, and high-strength track shoe bolts & nuts.
Contact our expert engineering team for OEM/ODM drawings, material test certificates, and competitive direct-factory pricing.