Hydraulic jacks
product description
Electric synchronous hydraulic jacks are mainly used for the overall lifting of railway bridges, the synchronous lifting and lowering of large mechanical equipment, etc., and the weights to be lifted are relatively large. The synchronous jack overcomes the tilt of the lifting weight of a single jack, which leads to damage and danger to the lifting object. Multi-top synchronization diverter valve should be used when in use, and the lifting load of each top should be balanced to keep the lifting and lowering speeds synchronized. It should also be considered that the ground may sink due to the uneven weight of the lifting object, causing the lifting object to tilt and causing man-made damage. The series of synchronous travel supports are equipped with pressure-holding and overflow devices to prevent overload, and are equipped with safety valves to protect the synchronous jacks to achieve safe operation and protect the lifting objects. The pressure-holding device is more suitable for bridge construction with high pressure-keeping requirements. Beam.
In the bridge construction project, an electric oil pump can provide power for 4 to 32 (or more) hydraulic jacks, and synchronous jacking can realize the installation or replacement of bridge support pads.
Product performance index
1. Double acting, hydraulic retraction
2. The piston rod of the cylinder has a metal coating to reduce friction and prevent air corrosion
3. The overflow function limits the stroke, and is designed with a safety pressure holding device to prevent sudden overpressure. The special structure protects the jack. The eccentric load that can withstand up to 15% of the rated load capacity of the hydraulic cylinder is high. High-strength alloy steel is durable, especially in large-scale, it is easy to operate and control the jack
4. High temperature baking paint, surface corrosion and impact resistance 5. Dust-proof ring design reduces pollution and prolongs service life