Bernard Construction Machinery Excavator Hydraulic Cylinder

Bernard Construction Machinery Excavator Hydraulic Cylinder

Hydraulic cylinder is the core executing component in hydraulic systems, used to convert hydraulic energy into mechanical energy and achieve linear reciprocating motion. Its structure is mainly composed of cylinder barrel, cylinder head, piston, piston rod and sealing device, with the characteristics of simple structure and reliable operation.

Core structure

Cylinder barrel and cylinder headProvide guidance and sealing functions, the inner wall of the cylinder is smooth and precise, and both ends are fixed by end caps.

Pistons and piston rodsThe piston moves inside the cylinder, driving the piston rod to extend or retract and transmitting power.

sealing devicePrevent hydraulic oil leakage and ensure smooth movement. ‌

working principle

Hydraulic oil is pressurized by the oil pump and enters one end of the cylinder (rodless or rodless chamber), acting on the effective area of the piston to generate thrust and push the piston rod to move in a straight line. The other end of the hydraulic oil flows back to the oil tank or to other components. ‌

Main Features

High output powerUnder the same volume, the thrust generated by hydraulic cylinders is much greater than that of motors or cylinders.

Smooth movementNo transmission clearance, no need for deceleration device, fast response speed.

widely usedSuitable for fields such as construction machinery, industrial equipment, agricultural machinery, etc., such as excavator boom, injection molding machine opening and closing molds, etc. ‌

Bernard Construction Machinery Excavator Hydraulic Cylinder

Hydraulic cylinders convert hydraulic energy intomechanical energyHydraulic systems that perform linear reciprocating motion (or swinging motion)ActuatorIt has a simple structure and reliable operation. When using it to achieve reciprocating motion, there is no need for a deceleration device, and there is no transmission gap, making the motion smooth. Therefore, it is suitable for various mechanical applicationshydraulic systemIt has been widely used. The output force of the hydraulic cylinder is proportional to the effective area of the piston and the pressure difference on both sides; A hydraulic cylinder is basically composed of a cylinder barrel andcylinder head、pistonandpiston rod、sealing deviceBuffer device andexhaustform.