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lift cylinder of forklift truck Sold to Brazil

Release time:2023-11-12 15:32:58 Hits: Current position: Home > News

This article mainly introduces:

Brazil hydraulic cylinder,lift cylinder of forklift truck manufacturer,lift cylinder of forklift truck

Brazil lift cylinder of forklift truck

(Brazil lift cylinder of forklift truck,produced by Hengyu Group)

lift cylinder of forklift truck are widely used in Brazil,because of no transmission clearance,clever hydraulic energy conversion,long service life.So our company has designed lift cylinder of forklift truck for customers from Brazil.

Introduction to lift cylinder of forklift truck:

The main role of the lift cylinder of forklift truck: the lift cylinder of forklift truck is an executive element in the hydraulic transmission system, which is an energy conversion device that converts hydraulic energy into mechanical energy. The hydraulic motor realizes continuous rotary motion, while the lift cylinder of forklift truck realizes reciprocating motion. The structure of the lift cylinder of forklift truck has three categories: piston lift cylinder of forklift truck, plunger lift cylinder of forklift truck, swing lift cylinder of forklift truck, piston lift cylinder of forklift truck and plunger lift cylinder of forklift truck to achieve reciprocating linear motion, output speed and thrust, swing lift cylinder of forklift truck to achieve reciprocating swing, output angular speed (speed) and torque. In addition to the single use of the lift cylinder of forklift truck, two or more can be combined or used in combination with other mechanisms. To fulfill a special function. The lift cylinder of forklift truck has simple structure and reliable operation, and has been widely used in the hydraulic system of machine tools.

The piston rod of the lift cylinder of forklift truck has two kinds of solid rod and hollow rod, and one end of the hollow piston rod needs to be set aside for welding and heat treatment. The solid piston rod material is 35, 45 steel, and the hollow piston rod material is 35, 45 seamless steel pipe. After rough machining, the piston rod is conditioned to 229~285HB in India, and if necessary, the hardness is 45~55HRC after high-frequency quenching.

If air enters the hydraulic system, the lift cylinder of forklift truck will not operate normally, mainly because there is a leak in the system. At this time, check the liquid level of the hydraulic tank, the seals and fittings on the oil suction side of the hydraulic pump, and whether the oil suction filter is too dirty. If so, the hydraulic oil should be replenished, seals and fittings should be treated, and the coarse filter element should be cleaned or replaced.

What kind of process is used in the lift cylinder of forklift truck to make high-quality lift cylinder of forklift truck products: the body is the main component of the lift cylinder of forklift truck, mining single pillar, hydraulic support, gun tube and other products, and its processing quality directly affects the life and reliability of the entire product. Body processing requirements are high, the internal surface roughness requirements are Ra0.4 ~ 0.8&um, the coaxiality, wear resistance requirements are strict. The basic feature of body is deep hole processing, which has always troubled the processing personnel. The lift cylinder of forklift truck products of our company mainly use rolling processing, because the surface layer has surface residual compressive stress, which helps to close the surface micro-cracks and hinder the expansion of erosion. Thus, the corrosion resistance of the surface can be improved, and the fatigue crack can be delayed or expanded, and the fatigue strength of the body can be improved. The correct rolling process of the lift cylinder of forklift truck block: broaching block - fine boring block - grinding block. The rolling method is: broaching block - fine boring block - rolling block, the process is 3 parts, but the time is compared: grinding 1 meter of the block is about 1-2 days, rolling 1 meter of the block is about 10-30 minutes. Input comparison: grinding machine or quilting machine (tens of thousands - millions), rolling knife (ten thousand - tens of thousands). After rolling, the surface roughness of the hole decreases from RA3.2-6.3um before rolling to RA0.4-0.8&um, the surface hardness of the hole increases by about 30%, and the fatigue strength of the inner surface of the lift cylinder of forklift truck increases by 25%. If the service life of the lift cylinder of forklift truck is only considered, it is increased by 2 to 3 times, and the efficiency of the boring and rolling process is about 3 times higher than that of the grinding process. lift cylinder of forklift truck misoperation or operation failure may be caused by the following reasons, you can start from these aspects of the investigation: (1) spool stuck or valve hole blocked. When the spool of the flow valve or direction valve is stuck or the valve hole is blocked, the lift cylinder of forklift truck is prone to misoperation or operation failure. At this time, the contamination of the oil should be checked; Check whether dirt or colloidal deposits are stuck in the spool or blocking the valve hole; Check the wear of the valve body, clean and replace the system filter, clean the fuel tank, and replace the hydraulic medium. (2) The piston rod and lift cylinder of forklift truck are stuck or the lift cylinder of forklift truck is blocked. At this time, no matter how to manipulate, the lift cylinder of forklift truck does not move or moves very little. At this time, check whether the piston and piston rod seal is too tight, whether it enters the dirt and gum deposits: whether the shaft line of the piston rod and the lift cylinder of forklift truck is in the center, whether the wearing parts and seals are invalid, and whether the load is too large.

Answers to some questions about lift cylinder of forklift truck:

Is rubber or polyurethane better for V-ring of hydraulic cylinder?
The hydraulic cylinder V-type seal ring is better with polyurethane, and chlorine rubber is used for various chemicals and high temperatures, especially when there are wear-resistant requirements, polyurethane rubber is needed. But the price of polyurethane rubber is much more expensive than the price of rubber. However, the V-ring material is most commonly used in nitrile and neoprene rubber, and natural rubber is used for sealing water and air. Butyl rubber is used for non-combustible hydraulic fluids and phosphate ester hydraulic fluids. The advantage is that the price is cheaper than the polyurethane material, and the disadvantage is that it is not wear-resistant and the anti-aging property is relatively poor.

What are the standard cylinder models for hydraulic cylinders?
National standard GB/T2348-1993 specifies the hydraulic cylinder inner diameter series, you can check GB/T2348-1993 relevant regulations.

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