max. carrying capacity: 40t – at reach: 3m – Carrying capacity: 0.7t – at max. reach: 34m – max. standard boom: 43m – Min. standar…
max. carrying capacity: 40t – at reach: 3m – Carrying capacity: 0.7t – at max. reach: 34m – max. standard boom: 43m – Min. standard boom: 11m
See load chart, specs, capacity, size and other technical data for Sany SCT400 crane manufactured between 2022 - 2026. See information, like: max. carrying capacity: 40t – at reach: 3m – Carrying capacity: 0.7t – at max. reach: 34m – max. standard boom: 43m – Min. standard boom: 11m and more.
More technical details, like: max. hook height, load torque, soil pressure, dimension lxwxh, cylinder bore x stroke, weight are available in the full technical specs.
Novelty in cab design, artistic modeling and trim, and a large area glass window with a tilt angle of 20° to broaden the horizon. It is fitted with a low beam headlamp and rearview mirror to enhance visibility. Additionally, it is installed with an air conditioner and radio. The arrangement of seats, control handle, and various control buttons is ergonomically designed to enable more comfortable operation. The cab layout features an integrated touch screen of large dimensions, with optional vibration handles, making the man-machine interaction interface more perfect. The armrest box includes the operation handle, electrical switch, emergency stop switch, and ignition switch, all installed on the left and right armrest boxes, which can be adjusted with the seat. The seat is a suspension type, multi-mode, and multi-level regulated seat, fitted with an unfolding switch. The air conditioner provides cooling and heating air, with optimized air passage and air port. Multiple cameras can be presented on the monitor simultaneously to realize real-time monitoring of the wire rope on each winch, conditions behind the counterweight, and the surroundings of the machine.
Function Lock
If the function lock level is not in the work position, all the other handles won’t work, which prevents any mis-operation caused by accidental hitting.
Slewing Lock
An electrical lock is provided, which needs to be released for the swing to work, preventing the operator from accidentally hitting the handle and ensuring safety. A cylinder lock can lock the upperworks in two directions.
Seat Interlock
If the operator leaves the seat, all control handles and switches will be disabled immediately to prevent any mis-operation due to accidental collision.
Illuminating Light
The machine is equipped with short-beam light in front of the machine, lamps in the operator’s cab, and lighting devices for night operation, as well as boom lights, to increase visibility during work.
Rearview Mirror
It is installed on the left of the operator’s cab and at the front handrail of the sheet metal for monitoring the rear part of the machine.
Transport
Counterweight
Block-type counterweight is easy to assemble and disassemble. The counterweight tray and blocks are stacked in a way that is easy to assemble, disassemble, and transport. Rear counterweight: gross weight 13t. Provide load chart on counterweight.
Traveling drive
Independent traveling drive device is adopted for each side of the crawler frame, allowing for straight travel and turning through a reducer and drive wheel by the travel motor. The machine is capable of cab auto direction aligning. Traveling speed: The traveling can be switched between high speed and low speed, with high speed reaching up to 3km/h. Gradeability: 45%.
Telescopic crawler
The extension and retraction of crawler frames are realized through a cylinder. The crawlers are extended at work and retracted for transport with the whole basic machine. They can work in fully extended and fully retracted conditions, and a respective hierarchical load chart is provided.
Transport Plan
Transportation mode I: whole machine transportation, gross weight 48t, 13.7m x 2.99m x 3.3m (L x W x H). Transportation mode II: dismantle the counterweight, jib, and lifting hook, and transport through two vehicles with a maximum weight of a single piece transportation of 34t, 13.7m x 2.99m x 3.3m (L x W x H).
Work
Electrical Control System
Adopt SYIC-II integrated control system independently researched and developed by Sany. This system is featured by high integration level, accurate operation and reliable quality. The control system is composed of power system, engine system, main control system, Load Moment Limiter, auxiliary system, and safety monitoring system. Data communication among the controller, display, and engine is conducted by CAN bus technology. The display can show the engine rotating speed, fuel volume, engine oil pressure, servo pressure, engine working time, load weight, boom angle, and other working parameters and conditions.
Smart Integrated Load Moment Indicator
The integrated LMI system is provided as a standard offering to realize calibration-free, high safety, and efficiency for equipment control. The LMI system can automatically detect the suspended load weight, working radius of the crane, and the angle of the boom, comparing rated load weight and actual load, working radius, and boom angle. Under normal operating conditions, it can intelligently judge and automatically cut off the crane action in dangerous directions, and it has a black box function to record overload information. Its main components include: monitor, controller, length angle sensor, pressure sensor, etc.
Over-hoist Protection of the Main/Auxiliary Load Hoist
Height limiter is equipped on the boom/jib top, which prevents the hook from hitting too high. When the hook is lifted to the limit height, the limit switch activates, an alarm pops up on the monitor, the buzzer on the right front control panel sends an alarm, the failure indicator light starts to flash, and the hook hoisting action is cut off automatically.
Over-release Protection of the Main/Auxiliary Load Hoist
A three-wrap protector is installed on the main and auxiliary load hoist to prevent over-release of the wire rope. When the rope is paid out close to the last three wraps, the limit switch acts, and the system sends an alarm through the buzzer and displays the alarm on the monitor, automatically cutting off the winch action.
Tri-color Load Indicator
The load indicator light has three colors: green, yellow, and red; the real-time load status is presented on the display. When the actual load is smaller than 90% of the rated load, the green light is on; when the actual load is larger than 90% and smaller than 100%, the yellow light is on, the alarm light flashes, and intermittent sirens sound; when the actual load reaches 100% of the rated load, the red light is on, the alarm light flashes, and continuous sirens sound. When the actual load reaches 102%, the system will automatically cut off the crane’s dangerous operation.
Engine
Emergency Stop
In emergency situation, this button is pressed down to cut off the power supply of the whole machine and all actions stop.
Hydraulic
Hydraulic System
Main pump: adopt open piston pump with large variable displacement, providing oil supply to the main actuator; Gear pump: dual gear pump for swing, and control circuit; Control: the main pump adopts the control type of electrically proportionate positive flow, and the winch motor is piston motor with variable displacement. The operating components are two hydraulic proportional cross handles, one hydraulic control hand valve for boom telescoping, and one pedal control valve for travel, to control each actuator proportionally; Max. pressure: 35MPa; Main loop, aux. and travel system: 32MPa; Boom hoist offering lifting: 32MPa; Swing system: 20MPa; Control system: 5MPa; Hydraulic oil tank capacity: 680L.
Main and aux. load hoist mechanism
Pump and motor: energy-efficient, combination of winch balance valve and anti-hook sliding technology, lifting or lowering the load steadily; Winch: brake adopts wet type and spring loaded fin type normally engaged brake, spring force braking, oil pressure released; Main and aux. load hoist winches adopt piston motor of fixed displacement to drive planetary reducer.
Swing mechanism
Swing brake adopts wet type and spring loaded fin type normally engaged brake, spring force braking; Function: integrated cushion valve, the swing system has free slip function to realize steady swing start and control, showing outstanding microinching performance; Swing drive: swing cushion design ensures more stable braking; 360° rotation, maximum rotating speed 2r/min. The maximum driving pressure can reach 20MPa; pressure released by hydraulic locking device, to ensure that the superstructure can be locked in front and rear directions conveniently and reliably during off-work time and transportation; Swing bearing: single row ball type bearing.
Crawler tensioning
Spring tensioner with auxiliary hydraulic cylinder regulates the tension degree through changing grease, and the spring can perform buffer and protection function when traveling.
Closed Circuit Monitoring System
There are two cameras on the tail of rotating bed, which can show the rear part and winches working on the machine.
Boom
Boom hoist mechanism
Double acting single piston rod hydraulic cylinder, fitted with safety balance valve, luffing angle: -2°-78°, adopting dead-weight luffing system to reduce the energy consumption and improve the steadiness of luffing operation.
Assembly/working mode switching switch
In Assembly Mode, certain safety devices are disabled to facilitate crane assembly. In Work Mode, all safety limiting devices activate to protect the operation.
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