Product Details
Function
Drive the horizontal extension and contraction of the support legs, and adjust the core hydraulic actuator of the support span
Cylinder diameter
50-180 mm (suitable for the horizontal support force requirements of different tonnage gantry cranes)
Travel
40-2600 mm (covering the adjustment distance of the legs horizontally retracted and fully extended)
Thrust
160KN-2700KN (providing horizontal support based on vehicle weight and lifting load)
Rod diameter
32-130 mm (matching cylinder diameter and thrust, ensuring piston rod strength and smooth expansion and contraction)
Work pressure
20-34 MPa (adapted to the hydraulic system pressure of the accompanying crane to ensure effective power transmission)
Advantages and Characteristics
Extreme pressure bearing capacity:
Working pressure of 20-34 MPa, peak pressure exceeding 40 MPa, single cylinder can provide 17-28 tons of horizontal thrust, stably supporting the lateral load of the whole vehicle during lifting operations, and coping with the overturning moment when lifting heavy objects.
Impact resistance and stability:
Adopting reinforced cylinder/piston rod materials (such as 27SiMn alloy steel) and multi-layer sealing system, it absorbs the instantaneous impact of leg extension and stop, suppresses hydraulic oil leakage, ensures stable horizontal support of legs, and avoids deviation during vehicle operation.
Millimeter level synchronization accuracy: Combined with proportional valve control and displacement feedback device, the synchronization error of the multi leg horizontal oil cylinder is ≤ 2mm, ensuring that the lateral span of the legs is consistent, maintaining the balance of the crane operation posture, and improving the safety of lifting.
Ultra long service life:
The surface is plated with hard chromium (20-30 μ m) and treated with phosphating, which has excellent corrosion and wear resistance. In frequent horizontal expansion and contraction operations, the service life is ≥ 100000 cycles, suitable for high-intensity construction rhythm of on-board cranes.
Safety redundancy design:
Built in locking valve+emergency pressure holding circuit, in case of sudden pressure loss, the support legs are locked in their current position to prevent changes in the support span; The cylinder body is equipped with an overload protection structure to avoid the risk of overpressure damage and safeguard the safety of lifting operations.
