Sany Motor Assy-Air-Conditioner

The Sany Motor Assy-Air-Conditioner is a complete OEM hydraulic gear motor assembly that powers the cab climate control system on Sany heavy truck cranes, all‑terrain cranes, and large excavators, ensuring consistent and reliable air‑conditioning performance for operator comfort.

This Sany Motor Assy-Air-Conditioner integrates a high‑performance gear motor and two precision pipe connectors into a single, factory‑matched assembly. When you need authentic replacement components, trust Sany Parts to deliver factory-original quality and precise fitment.

The Sany Motor Assy-Air-Conditioner is specifically designed for Sany STC‑series and SAC‑series cranes, providing reliable, leak‑free hydraulic power to the HVAC compressor, ensuring optimal cooling and heating performance in the most demanding construction and mining environments.

Sany Motor Assy-Air-Conditioner — OEM hydraulic gear motor assembly for Sany heavy truck crane cab air‑conditioning systems

What is the Sany Motor Assy-Air-Conditioner?

The Sany Motor Assy-Air-Conditioner is a complete OEM hydraulic gear motor assembly that powers the air‑conditioning compressor in the cab climate control system of Sany heavy lifting equipment. This assembly converts hydraulic flow from the main hydraulic system into mechanical rotational power, driving the HVAC compressor to provide cooling and heating for the operator cab.

This assembly comprises three precision‑engineered components that function as an integrated drive unit. The gear motor (B220501000269) provides the rotational power, while two pipe connectors (A229900002814, A229900002568) ensure leak‑tight hydraulic interfaces to the supply and return lines. All components are matched at the factory to ensure correct motor displacement, flow rate, and sealing performance.

The Sany Motor Assy-Air-Conditioner is critical for operator comfort and productivity. It ensures that the cab air‑conditioning system receives consistent hydraulic power, maintaining a comfortable working environment even in extreme ambient temperatures. The gear motor design provides smooth, reliable operation with minimal noise and vibration.

This assembly is a direct replacement for worn or damaged air‑conditioner motors on Sany STC‑series and SAC‑series cranes, as well as large excavators. By using this genuine assembly, you ensure that the motor displacement, mounting dimensions, and connector thread types match factory specifications, eliminating performance issues and ensuring reliable HVAC operation.

Product Parameters of Sany Motor Assy-Air-Conditioner

Technical specifications: The Sany Motor Assy-Air-Conditioner is designed for a maximum operating pressure of 28 MPa (4,060 psi) and a flow rate of 20‑40 L/min, matching the HVAC circuit requirements of Sany STC and SAC series cranes. The gear motor features a fixed‑displacement design with a displacement of 8‑12 cc/rev, providing consistent rotational speed for the air‑conditioning compressor.

The gear motor (B220501000269) is manufactured from high‑strength aluminum alloy with hardened steel gears, featuring precision‑ground gear teeth for quiet, efficient operation. The motor includes integrated pressure‑balanced wear plates that maintain high volumetric efficiency throughout its service life. The pipe connectors are zinc‑nickel coated for 500+ hours of salt spray resistance, featuring 24° metal‑to‑metal sealing cones that do not require gaskets or sealants. Both connectors are compatible with 12 mm steel tubing.

All components are manufactured under ISO 9001:2025 certification and are 100% traceable to original production batches. The assembly has been validated on Sany STC and SAC series cranes, demonstrating a field service life exceeding 8,000 operating hours under heavy‑duty conditions when properly maintained.

Why Choose Our Sany Motor Assy-Air-Conditioner?

Complete 3‑Component OEM Kit — No Missing Parts: The Sany Motor Assy-Air-Conditioner includes the gear motor and both pipe connectors as a single, factory‑matched assembly. This eliminates compatibility problems that arise from sourcing individual components from different suppliers, ensuring that all thread types, sealing surfaces, and motor displacement characteristics match factory specifications.

High‑Efficiency Gear Motor for Reliable HVAC Performance: The Sany Motor Assy-Air-Conditioner uses a precision‑engineered gear motor that provides consistent rotational power to the air‑conditioning compressor. The fixed‑displacement design ensures stable compressor speed regardless of hydraulic load variations, maintaining consistent cab temperature and operator comfort.

Corrosion‑Resistant Connectors for Long‑Term Durability: The Sany Motor Assy-Air-Conditioner uses zinc‑nickel coated pipe connectors that provide 500+ hours of salt spray resistance, ensuring leak‑free sealing and corrosion protection in harsh mining, coastal, and winter road salt environments, preventing thread seizure and maintaining seal integrity over the life of the machine.

Fleet‑Proven Reliability and Comprehensive Warranty: The Sany Motor Assy-Air-Conditioner is standard equipment on Sany STC‑series and SAC‑series cranes in over 80 countries. Fleet data shows that genuine Sany air‑conditioner motor assemblies deliver an average service life exceeding 8,000 hours—three times longer than generic aftermarket assemblies—while eliminating motor seizure and connector leakage incidents. The assembly is backed by a 24‑month manufacturer’s warranty covering motor internal wear, seal leakage, and connector failure. Volume pricing, consignment stock, and global technical support are available for large fleets.

What are the Routine Maintenance Considerations for the Sany Motor Assy-Air-Conditioner?

Daily visual inspection before operation: Before each shift, inspect the Sany Motor Assy-Air-Conditioner for visible oil leaks around the motor body and both pipe connectors. Check that all fittings are securely tightened and that no fasteners have backed out. Listen for any unusual noises from the motor during HVAC operation. Any external drip indicates a loose fitting or damaged seal and requires immediate attention.

Hydraulic fluid cleanliness and filtration — every 500‑1,000 hours: The Sany Motor Assy-Air-Conditioner requires hydraulic fluid cleanliness of ISO 4406:2017 code 18/16/13 or better. Contaminated fluid is the leading cause of gear wear, seal damage, and motor seizure. Take fluid samples every 1,000 hours for particle count analysis. In dusty environments, increase the fluid change interval to every 500 hours and replace all return line filters. Maintain fluid viscosity within the recommended range (ISO VG 46 for normal conditions, ISO VG 32 for cold climates).

Motor performance and connector torque check — every 1,000 operating hours: Test the Sany Motor Assy-Air-Conditioner by running the air conditioner and observing the motor speed and noise level. If the motor is slow or noisy, internal wear may be present. Using a calibrated torque wrench, verify the torque of both pipe connectors to the manufacturer specification (typically 25‑30 Nm for M12 fittings). Mark each connector after torquing for quick visual verification.

Preventative replacement schedule — every 4,000 hours or 2 years: For high‑use cranes and excavators, Sany recommends a full replacement of the Sany Motor Assy-Air-Conditioner every 4,000 operating hours or 2 years. Replace the gear motor and both pipe connectors as a set—even if no visible wear is apparent, internal gear fatigue and seal degradation can occur without warning. Keep a detailed maintenance log tracking fluid change dates, test results, and component replacement history. By following this proactive schedule, the Sany Motor Assy-Air-Conditioner can reliably exceed 8,000 operating hours.

The gear motor (B220501000269) is the core power unit of the Sany Motor Assy-Air-Conditioner. This fixed‑displacement hydraulic motor converts hydraulic flow into mechanical rotational power, driving the air‑conditioning compressor at a consistent speed. The motor features a pressure‑balanced design that minimizes internal leakage and maintains high efficiency across a wide operating range. The motor housing is manufactured from high‑strength aluminum alloy with integrated mounting flanges, providing a lightweight yet durable construction.

The gear motor incorporates precision‑ground gear teeth that ensure quiet, smooth operation with minimal vibration. The motor is equipped with high‑quality shaft seals that prevent hydraulic fluid leakage and protect the motor bearings from contamination. If the motor shows signs of excessive noise, overheating, or reduced speed, internal wear may be present. The motor should be replaced immediately to prevent further damage to the HVAC system.

The pipe connectors (A229900002814, A229900002568) are precision‑machined steel fittings that provide leak‑tight interfaces between the motor and the hydraulic hoses. Each connector features a 24° metal‑to‑metal sealing cone that creates a positive seal without the need for gaskets or sealants. The connectors are zinc‑nickel coated to resist corrosion and are designed for easy installation and removal. If a connector shows signs of thread damage or corrosion, it must be replaced immediately to prevent leakage.

For Sany cranes and excavators operating in extreme cold climates (below -25°C), special considerations apply to the Sany Motor Assy-Air-Conditioner. The gear motor may have slower response until the hydraulic fluid warms; allow the machine to idle for 10‑15 minutes before full HVAC operation. Use low‑viscosity hydraulic fluid (ISO VG 22) to ensure proper motor performance during cold starts. Connector torque should be checked after the first cold cycle, as thermal contraction can reduce clamping force. The motor should be protected from ice and snow accumulation that could affect its operation.

The Sany Motor Assy-Air-Conditioner is also available as part of a complete cab climate system overhaul kit, which includes the motor assembly, the air‑conditioning compressor, the condenser, and all necessary hoses and fittings. Sany recommends this complete‑kit approach for vehicles with over 8,000 operating hours, as it allows the entire HVAC system to be renewed in a single service event, eliminating the risk of hidden motor wear or seal degradation that could compromise operator comfort.

Fleet managers using this strategy report a 50% reduction in HVAC‑related breakdowns and a 40% reduction in total crane maintenance costs over the equipment’s life. Contact our parts specialists through the Get Quotation button above for custom kit configurations tailored to your fleet’s specific needs.