Weifang Donghang Precision Machinery Flexo Printing Machine successfully passed the appraisal

March 24, 2021

On May 21, 2006, Weifang Donghang Precision Machinery Co., Ltd. passed the inspection and examination of the Science and Technology Bureau and experts. The appraisal meeting was a complete success. Experts have evaluated the advancement and practicability of our company's flexo printing machine. Among them, our large-format flexo printing machine is evaluated as follows: This product adopts new technologies such as servo broken large sheet and single shaft collecting and cutting large rolls. The maximum printing paper width is 830mm, and the maximum repeat printing length is 762mm, which is better than the current search index, and its overall performance has reached the domestic leading level.

Hydraulic cylinders get their power from pressurized hydraulic fluid, which is typically oil. The hydraulic cylinder consists of a cylinder barrel, in which a piston connected to a piston rod moves back and forth. The barrel is closed on one end by the cylinder bottom (also called the cap) and the other end by the cylinder head (also called the gland) where the piston rod comes out of the cylinder. The piston has sliding rings and seals. The piston divides the inside of the cylinder into two chambers, the bottom chamber (cap end) and the piston rod side chamber (rod end / head end).

Flanges, trunnions, clevises, and lugs are common cylinder mounting options. The piston rod also has mounting attachments to connect the cylinder to the object or machine component that it is pushing or pulling.

A Hydraulic Cylinder is the actuator or "motor" side of this system. The "generator" side of the hydraulic system is the hydraulic pump which delivers a fixed or regulated flow of oil to the hydraulic cylinder, to move the piston. The piston pushes the oil in the other chamber back to the reservoir. If we assume that the oil enters from cap end, during extension stroke, and the oil pressure in the rod end / head end is approximately zero, the force F on the piston rod equals the pressure P in the cylinder times the piston area A:


Hydraulic Cylinder

hydraulic cylinder

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