Sany Main Body-Structure

Sany Parts engineering delivers the central foundation for heavy lifting machinery. The Sany Main Body-Structure is a fully integrated chassis and frame assembly for truck cranes, excavators, and heavy-duty vehicles. This comprehensive Sany Main Body-Structure incorporates the main body frame, outrigger support systems, boom mounting brackets, fenders, operation control platforms, spare wheel carriers, tow hooks, and all necessary mounting hardware including bolts and washers. Every element of the Sany Main Body-Structure is engineered for precise alignment, maximum load distribution, and long-term reliability. Upgrading to the genuine Sany Main Body-Structure transforms your equipment’s stability and safety.

The Sany Main Body-Structure is a factory-engineered chassis and frame assembly serving as the structural backbone for Sany truck cranes, excavators, and construction vehicles. This robust Sany Main Body-Structure centers on a high-strength main body frame (10596756) fabricated from heavy-gauge steel, having passed 200,000-cycle fatigue tests. The main frame provides mounting points for the boom, cab, engine, and hydraulic systems, designed to withstand twisting and bending forces during off-road travel and heavy lifting.

The stability system within the Sany Main Body-Structure includes a complete outrigger assembly (10467307) that deploys to create a wide footprint during lifting. H-form arrangement and fully hydraulic control with vertical and horizontal extension capabilities ensure the machine stays level on uneven terrain. The outrigger system works with the main frame to distribute forces, preventing chassis twisting. This Sany Main Body-Structure is controlled by components like the fifth outrigger oil cylinder (10182108) and the purpose-built fifth outrigger pan.

The front and rear outrigger cylinders (10059849, 10059851) lift the entire chassis off its suspension, transferring weight to the outrigger pads. The horizontal cylinder (10865623) extends the outrigger beams outward, widening the support base to prevent tipping. An outrigger float mechanism ensures smooth ground contact. The support frame of the support foot tray (11328437) provides a stable platform even on soft ground. A dedicated fifth outrigger enhances balance during crane operations – all seamlessly integrated into the Sany Main Body-Structure.

This Sany Main Body-Structure incorporates numerous critical structural components. The boom bracket (10131163) provides a reinforced mounting point for the main lifting boom. The fender assembly (10130755) and diesel engine cover assembly (10267537) protect vital components. The platform and bracket assembly (10671016) provides safe access. The chassis operation device (10115869) houses crane controls. A heavy-duty tow hook (10041143) is rated for full vehicle recovery. The spare wheel bracket assembly (00000196) secures the spare tire. Every part of the Sany Main Body-Structure is built for longevity.

All structural elements of the Sany Main Body-Structure are connected using high-strength bolts (A210111000106, A210111000090) and washers (A210401000004, A210401000017). Every component is built to Sany’s OEM specifications, backed by a 24‑month warranty and supported by a global parts network spanning over 120 countries. The modular design of the Sany Main Body-Structure allows independent replacement of individual components, reducing downtime and repair costs.

Daily Visual Inspection of Structural Components: Before each shift, inspect the main body frame (10596756) of your Sany Main Body-Structure for cracks, especially at weld joints and high-stress areas. Check the boom bracket (10131163) for cracking or deformation. Examine the outrigger assembly (10467307) within the Sany Main Body-Structure for damage to beams or pads. Look at the support frame of the support foot tray (11328437) for deformation after operation on uneven ground. Inspect the spare wheel bracket (00000196) for security and the tow hook (10041143) for bending or cracking. Document any visible crack or deformation before further operation.

Outrigger Cylinder and Fastener Torque Verification: Every 250 hours, inspect all outrigger cylinders for external oil leakage: front vertical (10059849), rear vertical (10059851), horizontal (10865623), and fifth outrigger oil cylinder (10182108). Verify structural bolt torque on the Sany Main Body-Structure using a calibrated torque wrench. Tighten bolts A210111000106 and A210111000090 to specifications: M12 to 80‑100 Nm, M14 to 130‑150 Nm. Replace any washer (A210401000004, A210401000017) showing deformation or corrosion. Proper torque maintains correct alignment under heavy loads.

Outrigger System Lubrication and Component Condition: Every 500 hours, lubricate outrigger beam sliding surfaces and pivot points of the Sany Main Body-Structure using lithium-based grease. Inspect the fifth outrigger float (A810312000264) for smooth operation and the main float (A810399000584) for damage. Operate each outrigger through full range, listening for grinding or clicking indicating bearing wear or cylinder damage. Check cylinder rods for scoring or pitting; damaged rods cause seal leakage. This prevents unexpected hydraulic failures during critical lifting.

Chassis Device and Cover Condition Check: Every 1,000 hours, inspect the operation device, chassis (10115869) for corrosion under the mounting area. Verify controls move freely with correct detent feeling. Check the diesel engine cover assembly (10267537) for cracks or missing attachment points. Inspect fender assembly (10130755) for damage that could allow debris contact with tires. Examine platform and bracket assembly (10671016) for broken welds or loose hardware. Ensure tow hook mounting bolts remain tight.

Annual Full Structural Inspection (Part 1): Every 2,000 hours, schedule a comprehensive structural integrity inspection of the Sany Main Body-Structure. Remove outrigger beams and inspect all outrigger assembly weld joints using magnetic particle or dye penetrant testing. Check main body frame weld joints for developing cracks. Inspect the support frame of the support foot tray for plastic deformation from overloading. Verify spare wheel bracket still secures the spare tire. Measure main frame for out-of-square condition indicating twisting from overloading.

Annual Full Structural Inspection (Part 2): Any cracks found in the Sany Main Body-Structure must be professionally evaluated; some can be weld-repaired, others require component replacement. Following this annual inspection schedule extends the service life of the Sany Main Body-Structure beyond 20,000 operating hours while ensuring the machine remains stable, level, and safe for all lifting operations. Always use genuine Sany replacement parts to maintain structural integrity and warranty coverage.

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