Telescopic hydraulic cylinder brief introduction
Telescopic hydraulic cylinders are also called Multistage hydraulic cylinders. It is composed of two-stage or multi-stage piston cylinder, mainly composed of cylinder head, hydraulic cylinder barrel, sleeve, piston and other parts.
Our factory produces OD chrome plated honed tubes for telescopic hydraulic cylinder manufacturing and repairing.
There are inlet and outlet ports A and B at both ends of the hydraulic cylinder barrel. When oil is fed into port A and oil is returned to port B, the first-stage piston with a larger effective area is pushed first, and then the smaller second-stage piston is pushed. Because the flow into the A port remains unchanged, the piston with a large effective area has a low motion speed and a large thrust; otherwise, the motion speed is high and the thrust is small. If oil is supplied to port B and oil is returned to port A, the secondary piston will first return to the end point, and then the primary piston will return.
The characteristics of the telescopic hydraulic cylinder are: it can be stretched very long when it is working, and it can be shortened when it is not working. It is suitable for occasions where the installation space is limited, such as the telescopic boom of a crane.
When the telescopic hydraulic cylinder is extended step by step, the effective working area gradually decreases. When the input flow is constant, the extension speed increases gradually; when the external load remains constant, the working pressure of the hydraulic cylinder gradually increases. The extension of the single-acting telescopic hydraulic cylinder depends on the oil pressure, and when it contracts, it depends on its own weight or load. Therefore, it is used for occasions where the cylinder body is inclined or rotated vertically.
Chrome Plated OD Honed Tubes for Telescopic Hydraulic cylinders
Honed tubes are the main material for manufacturing hydraulic cylinders, while chrome plated rod is the main material for manufacturing hydraulic piston rods. When manufacturing a telescopic hyddraulic cylinder, every moving stage of the cylinder is acting as the hydraulic cylinder barrel and also act as the cylinder rod. So to manufacturing a telescopic hydraulic cylinder, we will need to use the chrome plated tube with inner diameter honed and outer diameter chrome plated.
The smooth inner diameter of the chrome plated tube act as the hydraulic cylinder barrel, and the outer diameter of the tube is ground, polished and chrome plated, which can act as the cylinder rod of another stage.
Our factory produces full size range of honed tubes with OD chrome plated for telescopic hydraulic cylinders. The materials available in SAE 1020, SAE 1026, ST52.3, E355 and CK45.
Besides chrome plated tubes, we also produce the below products.
- Chrome plated shafts / chrome plated rods
2-1. CK45 Chrome Plated Rod | CK45 Hard Chrome Bar | CK45 Chrome Rods
2-2. 1045 Chrome Plated Rod
2-3. 4140 Chrome Plated Rod | 4140 Chrome plated bar
2-4. Induction hardened Chrome Plated Bar - Honed cylinder tubes
- 4140 honed cylinder tubes | 4140 hydraulic cylinder barrel
