Multi-Stage Cylinder

This multi-stage hydraulic cylinder consists of two or more piston cylinders, mainly composed of cylinder cover, sleeve, piston and other parts. There are inlets and outlets a and B at both ends of the cylinder barrel. When oil enters port A and returns to port B, the first-stage piston with a larger effective area is pushed, and the smaller second-stage piston moves.
Since the flow rate entering port A is constant, a piston with a large effective area has low speed and high thrust, whereas a piston with a large effective area has high speed and low thrust. If there is oil in port B and oil returns to port A, according to its structural design, the auxiliary piston will first return to the end point, and then the first piston will return. There are many ways to connect the cylinder block to the cylinder block, including tie rod connection, flange connection, inner half ring connection, welding connection, etc. Welding connection is chosen here. The connection between the piston and the piston rod of this multi-stage hydraulic cylinder mostly adopts a threaded connection structure. The threaded connection structure used in this structure is simple and practical, and the clamping key connection mechanism is suitable for cylinders with high working pressure. Therefore, the selection of threaded connection structure must take into account many factors.
Multi-stage hydraulic cylinders have an impact on the cylinder block due to related factors such as mechanical force and safety factor. And this effect is significant. The hydraulic cylinder will lose its normal working ability and be damaged due to excessive pressure. In order to ensure the strength of the cylinder, an appropriate safety factor must be considered. There are three forms of water supply that we need to be familiar with.
The working stroke of this kind of multi-stage hydraulic cylinder can be very long, which is suitable for occasions where the installation space is limited and a long stroke is required, such as the telescopic arm of a dump truck. As the telescopic hydraulic cylinder gradually extends, the effective working area gradually decreases and the extension speed gradually increases; when the external load is constant, the working pressure of the hydraulic cylinder gradually increases. What needs to be noted at this time is that the elongation of the single-acting telescopic hydraulic cylinder depends on the oil pressure, and the contraction depends on its own weight or load. This multi-stage hydraulic cylinder is also suitable for situations where the cylinder body is tilted or rotated vertically.
The oil cylinder is a hydraulic actuator that implements reciprocating motion in a multi-stage hydraulic cylinder. The utility model has simple structure, reliable operation, convenient operation and maintenance, and good low-speed stability. Therefore, it has been widely used in industrial production sectors. Mainly used in construction machinery, excavators, and other large chemical machinery, the cost involves all aspects of our lives.

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Dezhou Xinxin Hydraulic Technology Co., Ltd. has many years of experience in the manufacture of ultra-high pressure components and equipment. Relying on the exquisite manufacturing process and continuous innovation technology of Dezhou, it has provided hydraulic electric pumps, hydraulic gasoline engine pump stations, hydraulic diesel engine pump stations, hydraulic pipe jacking machines, Manual hydraulic pump, hydraulic manual pump, hydraulic plunger pump head, hydraulic riveting machine, PLC synchronous hydraulic system, large tonnage cylinder, jack, hydraulic engineering cylinder, self-locking hydraulic cylinder, hydraulic hose, hollow hydraulic cylinder and disassembly technology As well as the research on the power of hydraulic power, continuous research and development in the field of ultra-high hydraulic tools has created a large number of usable hydraulic tool products.

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