Hydraulic oil determines the performance of hydraulic jack Hydraulic oil plays a very important role in hydraulic jack. Good hydraulic oil can greatly improve the performance of hydraulic jack and prolong the service life of hydraulic jack. So, what good characteristics should a good hydraulic oil have? 1. Good demulsibility and hydrolysis stability. During the [...]
What is the performance and special use of hydraulic jack self locking device? Under what working condition is hydraulic jack self-locking device used? The self-locking jack is used for the place where the heavy object needs to be maintained for a long time. It can still support the heavy object on the ground after the [...]
In the working process of hydraulic cylinder, in order to prevent the two pairs of pistons from squeezing the cylinder head, causing noise, affecting the accuracy of the workpiece and even damaging the parts, buffer devices are often equipped at both ends of the cylinder in the system of hydraulic pump station. Its function is [...]
Classification of Hydraulic Jacks Hydraulic jacks are divided into: general hydraulic jacks and special hydraulic jacks. The universal hydraulic jack is suitable for all kinds of lifting operations with low lifting height. It consists of oil chamber, oil pump, oil storage chamber, piston, rocker, oil valve and other major parts. When working, as long as [...]
Precautions for Hydraulic Jack If there is a gap in the use, you can loosen the oil drain screw on the pump body, and then open the pump body vertically down a few times, then tighten the oil drain screw to continue using. When using hydraulic jacks, no eccentric load or overload shall be added [...]
In engineering operation, engineering hydraulic jack is a kind of lifting equipment, unlike electric hoist, which lifts all kinds of materials by tension, while electric hoist lifts all kinds of materials. Take hydraulic jack as an example, before using, we must check whether the reserved hole is unblocked, whether the steel strand is rusted or [...]
The working principle of hydraulic jack is that the wrench moves upward to drive the small piston upward. The oil in the tank is sucked into the lower part of the small piston through the tubing and one-way valve. When the wrench presses down, the small piston is driven downward. The oil in the lower [...]
Fault and solution of hydraulic jacks Cylinders Hydraulic jacks Cylinders piston rod cannot extend, extend slowly or cannot extend completely? 1. Open the oil drain valve of the pump: fully tighten the oil drain valve; 2. The joint is not tightened: fully tighten the joint; 3. Lack of hydraulic oil in pump oil tank: add [...]
Before use, it is necessary to check whether the parts are normal. Check whether the piston, joint, high-pressure hose, etc. are leaking oil. When using, the provisions of the main parameters should be strictly observed. Avoid excessive overload. Otherwise, when the lifting height or lifting tonnage exceeds the specified level, serious oil leakage will occur [...]
The hydraulic cylinder plays an important role in lifting, pushing and supporting objects. The precautions for using the hydraulic cylinder are listed as follows: 1. During the use of the hydraulic cylinder, the hydraulic oil shall be replaced regularly, and the filter screen of the system shall be cleaned to ensure its cleanness, so as [...]
