This article mainly introduces:

Brazil hydraulic cylinder,HSG engineering cylinder manufacturer,HSG engineering cylinder

(Brazil HSG engineering cylinder,produced by Hengyu Group）

HSG engineering cylinder are widely used in Brazil，because of excellent temperature resistance，powerful torque，no transmission clearance.So our company has designed HSG engineering cylinder for customers from Brazil.

Introduction to HSG engineering cylinder:

Protection of the HSG engineering cylinder surface: During the dismantling process, safety protection should be carried out on the HSG engineering cylinder to prevent objects from falling and welding slag from falling to the surface, causing damage to the HSG engineering cylinder surface. In the process of propulsion, the damaged pipe segments should be prevented from falling and smashing, and the slurry remaining on the surface of the HSG engineering cylinder should be cleaned up in time.

The HSG engineering cylinder body is commonly made of No. 20, 35, 45 seamless steel pipe, and the steel pipe is honed or rolled to achieve the roughness requirement within 0.4μm. The low pressure HSG engineering cylinder can use 20 steel pipe, and the high pressure HSG engineering cylinder can use 45 steel pipe.

The coordination of the sliding parts of the HSG engineering cylinder itself should not be too tight, the sealing friction force should not be too large, and H8 / f8 coordination should be selected between the piston rod and the guide sleeve; Check whether the size of the sealing ring is processed strictly according to the standard; If the V-shaped sealing ring is used, the sealing friction should be adjusted to a moderate degree.

HSG engineering cylinder body inspection: The inner surface of the HSG engineering cylinder and the piston seal are the main factors causing the leakage in the HSG engineering cylinder, if the HSG engineering cylinder has a longitudinal tensile mark, even if the new piston seal is replaced, it can not effectively eliminate the fault, the inner surface of the HSG engineering cylinder mainly checks whether the dimensional tolerance and shape and position tolerance meet the technical requirements, there is no longitudinal tensile mark, and measures the depth of the longitudinal tensile mark, in order to take the corresponding solution.

Answers to some questions about HSG engineering cylinder:

Is it good or bad for the hydraulic cylinder working in the limit stroke position?
It is not good for the hydraulic cylinder working in the limit stroke position. Generally, when the cylinder is used in the limit stroke, the oil in the cylinder will form a backflow back pressure impact on the piston and guide sleeve seals. If the limit is not accurate, it is easy to cause collision damage. It is recommended to leave a buffer of ten to twenty centimeters.

What is the safety factor of 25MPa cylinder wall thickness?
Safety factor n can take 3 cylinder material allowable stress [s]=sb/n δ/D=0.08 ~ 0.3 cylinder wall thickness δ=PMAX*D/ (2.3[s]-3PMAX) δ/D≤0.08 cylinder wall thickness δ=PMAX*D/2[s] P < 16MPa, Pmax=1.5Pn; P > 16MPa, Pmax=1.25Pn cold-drawn tube or honing tube is better!