27simn (GB/T17396-2009) | Tensile strength (σb/MPa) ≥ 1050 | ST52-3 | Tensile strength (σb/MPa) ≥ 510 |
E355 | Tensile strength (σb/MPa) ≥ 490 |
Yield strength (σs/MPa): ≥ 950 | Yield strength (σs/MPa):≥ 355 | Yield strength (σs/MPa): ≥ 355 | |||
Area shrinkage (ψ/%): ≥45 |
DALLAST's production staff are senior masters who have been engaged in the manufacture of multi stage hydraulic cylinders for many years. They use advanced production equipment and strictly control the production process, starting from the slightest to ensure the quality is excellent. Each cylinder is subjected to overload 280BAR -300BAR test, DALLAST telescopic hydraulic cylinder is used in dump truck, tipper valve is set to maximum working pressure 220BAR, compared with other brands of hydraulic cylinder maximum working pressure is only 190Bar, DALLAST hydraulic cylinder can push up heavier Load
Believe that our professional 4 Stage Telescopic Hydraulic Cylinder can provide more reliable products
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FAQ
Russia customers consulted with us about 4 Stage Telescopic Hydraulic Cylinder
Q: garbage truck's multi-level horizontal push cylinder, why retraction weakness?
A: 1. Check the hydraulic cylinder has no internal leakage,
2 If there is no internal leakage, please check the pressure when the cylinders are retracted. If the pressure is too high, the oil return area is small or the oil return hole is small.
Q: The last section of the hydraulic cylinder of the dump truck is difficult to lift
A: It is recommended to check whether the seal of the hydraulic cylinder in the last section is damaged; to check whether there is internal leakage in the last section of the cylinder, and to check whether the oil quantity and oil pressure are low, or the hydraulic oil is insufficient. If the pressure is low, pressure adjustment is recommended. Or check the pump or pressure regulator. Exclude one by one
Q: What are the reasons why the balance valves are not balanced between the two cylinders?
Answer: The balance valve is only suitable for occasions with low synchronization accuracy. For high precision requirements, it is recommended to use proportional valve.
About our multi stage hydraulic cylinder more size or catalog, please contact our sales department, our professional technicians help you design and produce various 4 Stage Telescopic Hydraulic Cylinder
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