Sany SAC4000S Load Chart PDF + Specifications

The SANY SAC4000S was introduced as part of SANY’s large-capacity all terrain crane range targeting international heavy lifting markets requiring strong lifting performance together with road mobility and compact transport dimensions. The crane was designed for complex heavy lifting operations where both long boom reach and high lifting moment are required.

The crane is mounted on a specially developed six-axle all terrain chassis utilizing high-strength torsion-resistant structural steel construction. The carrier adopts a 12×8 drive configuration with multiple steering modes and advanced hydro-pneumatic suspension designed to improve mobility across difficult terrain and confined job sites.

Overall transport dimensions measure approximately 18,035 mm in length, 3,000 mm in width, and 4,000 mm in height. The six-axle wheelbase arrangement consists of 1,650 mm, 3,170 mm, 1,650 mm, 2,440 mm, and 1,650 mm axle spacing respectively. Total travelling weight is approximately 72 tonnes with axle loads maintained at 12 tonnes per axle group for road transport compliance.

Power for the carrier is supplied by a Euro IV compliant V8 diesel engine producing 440 kW at 1,800 rpm and maximum torque of 2,800 Nm at 1,300 rpm. The superstructure utilizes a separate inline six-cylinder diesel engine rated at 205 kW at 2,200 rpm. This dual-engine arrangement allows independent crane operations while optimizing fuel efficiency and hydraulic system performance.

The SAC4000S achieves a maximum travelling speed of 80 km/h with maximum gradeability rated at 49%. Minimum turning radius is approximately 12 m while the boom head turning radius is 14.4 m. Minimum ground clearance is rated at 360 mm with approach and departure angles of 16° and 18° respectively.

The crane features a six-section telescopic boom fabricated from high-strength fine-grain steel using an oval and U-shaped boom profile to improve structural rigidity and buckling resistance. The main boom extends hydraulically from 15.2 m to a maximum length of 70 m. The telescopic system utilizes a single-cylinder automatic pinning mechanism capable of controlling all boom sections with various telescoping combinations.

The SAC4000S delivers a maximum rated lifting capacity of 400 tonnes at a minimum working radius of 3 m. Maximum lifting moment on the basic boom reaches 11,520 kN·m while the fully extended boom provides 8,180 kN·m of lifting moment. The crane’s large lifting moment allows it to perform heavy lifts while maintaining long working radii and extended boom configurations.

One of the defining features of the SAC4000S is its highly flexible jib system. The crane can be equipped with both fixed jib and tower jib configurations utilizing shared modular sections. Fixed jib configurations range from 6 m to 42 m while tower jib configurations can be assembled from 12 m to 78 m. The luffing jib system incorporates hydraulic variable-angle adjustment from 0° to 40°, allowing improved lifting flexibility in restricted working environments and enhanced operational efficiency during long-radius lifting work.

With maximum tower jib configuration, the SAC4000S achieves a maximum lifting height of approximately 132 m and a working radius reaching 96 m. Fixed jib maximum lifting height is rated at approximately 112 m.

The crane is equipped with SANY’s independently developed superlift system which significantly enhances lifting performance during long boom operations. The superlift device can be self-assembled and self-disassembled without auxiliary cranes and is mounted independently on both sides of the boom head. According to SANY, the system can reduce boom deflection by 20% to 30% and improve lifting capacity by more than 200% under certain long boom operating conditions.

The counterweight system uses modular variable counterweight combinations including 0 t, 14 t, 28.5 t, 43 t, 56 t, 80 t, and 100 t arrangements depending on lifting requirements. The counterweights can be installed and removed remotely with precise hydraulic control to improve assembly efficiency and operator safety.

The hydraulic system combines open and closed-loop circuits utilizing load-sensitive electro-hydraulic proportional control technology. SANY’s self-developed dual-pump converging and diversion main valve system improves combined movement performance while maintaining precise micro-motion control during lifting operations.

The crane utilizes an advanced CAN-bus electronic control architecture integrating PLC programmable control systems and distributed sensor networks capable of monitoring crane operating conditions in real time. The system provides real-time operational monitoring, fault diagnosis, load moment calculation, and electronic safety management functions.

Main and auxiliary winches both achieve maximum single-line rope speeds of approximately 130 m/min. Boom extension and retraction times are approximately 540 seconds while boom luffing operations require approximately 75 seconds upward and 110 seconds downward. Maximum slewing speed reaches approximately 1.2 rpm with infinitely variable slewing control.

The outrigger system adopts a fully hydraulic H-type arrangement with maximum outrigger span measuring 8.95 m longitudinally and 8.6 m transversely. Wireless remote-control outrigger operation and automatic leveling functions are incorporated to simplify crane setup and improve operational precision.

The SAC4000S is equipped with multiple safety systems including a load moment limiter with ±3% rated lifting accuracy, anti-two-block systems, anemometers, boom angle monitoring systems, wire rope protection systems, hydraulic safety valves, and superlift protection programs.

Operator comfort was also emphasized in the crane’s development. Both carrier and superstructure cabs feature ergonomic layouts, air-conditioning systems, suspended seating, panoramic visibility, and integrated digital monitoring interfaces designed to improve long-duration operating comfort and operational safety.