The most common problems when selecting a 3 stage telescoping hydraulic cylinder are as follows
A. Multi stage hydraulic cylinder retract dimension
B. 3 stage telescoping hydraulic cylinder Stroke length (Inches)
C. Mounting types
D. Port Size and Type (SAE or NPT)
E. Pressure rating (PSI/MAP/Bar)
F. Bore Diameter (Inches)
G. Application details
It is 15%-20% lighter than other multi stage cylinder, but has improved its lifting force by 10%-15%.(max 22MPA)
*All stage are hard chromed
*Materials are 27SIMN-quenching and tempering
*Tensile strength (σb/MPa) ≥ 1050
*Yield strength (σs/MPa): ≥ 950
*Area shrinkage (ψ/%): ≥45
DALLAST hydraulic cylinders are all advanced processing technology. They are made of 27simn material with high tensile strength and high yield strength. The anti-fatigue polyurethane and PTFE seals are scientific and reasonable in structure, reliable in performance and easy to install and maintain. With a large tonnage and a maximum working pressure of 220 BAR, it can meet the needs of different users in different environments. The products are highly evaluated and widely recognized by the market.
Believe that our professional 3 Stage Telescoping Hydraulic Cylinder can provide more reliable products
Product Introduction
Production detail
Product Process
Company Office
Deliver, shipping and serving
FAQ
Finland customers consulted with us about 3 Stage Telescoping Hydraulic Cylinder
Q: The hydraulic cylinder has a sound and slowly withdraws. What is the reason?
A: The reversing valve is not closed tightly, and there is a sound in the cylinder.
Q: What kind of material is used in the hydraulic cylinder?
A: Generally, Q345 / ST52 / E355 / E460, etc. are used, these are cold drawn tubes; 27simn /stainless steel 304/316/420, these are all hot-rolled seamless tubes.
In particular, 27simn, after quenching and tempering treatment, tensile strength and yield strength performed best. This material is used for hydraulic hydraulic props for coal and dump trucks.
Piston rod: C45
Q: Hydraulic cylinder oil leakage
A: Several possibilities:
1. Between the piston rod and the guide sleeve:
(1) The hydraulic cylinder is not well stressed, and there is a radial force to cause an offset load between the piston rod and the guide sleeve, so that the oil seal is worn early and causes oil leakage.
(2) The ambient temperature of the piston rod is high, especially the radiant heat, and the oil seal aging is fast.
(3) Whether the oil seal is selected correctly; whether the oil seal is damaged during installation.
(4) Whether the tolerance between the guide sleeve and the piston rod is correct.
Second, between the guide sleeve and the cylinder: whether the O-ring on the guide sleeve is installed correctly, pay special attention to the O-ring can not be "rolled", especially some O-rings are closed and have a clamping line.
Third, the common problem: the guide sleeve, cylinder, piston rod concentricity. Fit tolerances are correct.
We not only product 3 Stage Telescoping Hydraulic Cylinder, we also design and product 4/5/6 Stage Telescoping Hydraulic Cylinder ,about Telescopic Hydraulic Cylinders more information ,please send us email , Our professional technicians will serve you.
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