Blog Directory » hydraulic system http://www.sites999.com China Manufacturer including Aluminum sand casting, Hydraulic tools, Ball valves, Water filters, Rubber injection machine, Smoke detector, Die Casting, Cable Connector, Aluminum radiator, Ziyun, Motorcycle, Steam room, China furniture Tue, 19 Apr 2011 08:16:17 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 Manufacturer of Hydraulic jack http://www.sites999.com/2010/02/manufacturer-of-hydraulic-jack/ http://www.sites999.com/2010/02/manufacturer-of-hydraulic-jack/#comments Fri, 26 Feb 2010 08:34:33 +0000 admin http://www.sites999.com/?p=68 Sunter Machinery is the leading manufacturer of Hydraulic jack, hydraulic floor jack and hydraulic bottle Jack, hydraulic jack widely used in industry field of steel, shipbuilding, electric power, chemical, metallurgic, construction etc.

Capacity：140-1000KN
Stroke：8-155mm
Max working pressure：70MPa
Single-acting, spring return used conveniently
Hollow plunger design allows for both pull and push forces.
Baked enamel finish for increased corrosion resistance.
Plunger wiper reduces contamination ingress, extending cylinder life.
Coupler and dust cap included on all models.
Mechalically self-lockinhg hydraulic jack

Capacity：50-1000T
Lifting Height：50-300mm
Max Working Pressure：70Mpa
Single-acting, load return.
Coating of special compound material provide superior corrosion resistance and inferior friction.
Overflow port functions as a stroke limiter。
Self-locking feature for positive and safe load holding over a long period of time.

]]> http://www.sites999.com/2010/02/manufacturer-of-hydraulic-jack/feed/ 72 Hydraulic cylinders http://www.sites999.com/2010/01/hydraulic-cylinders/ http://www.sites999.com/2010/01/hydraulic-cylinders/#comments Wed, 27 Jan 2010 06:17:08 +0000 admin http://www.sites999.com/?p=59 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 each end by the cylinder bottom (also called the cap end) and by the cylinder head where the piston rod comes out of the cylinder. The piston has sliding rings and seals. The piston divides the inside of the cylinder in two chambers, the bottom chamber (cap end) and the piston rod side chamber (rod end). The hydraulic pressure acts on the piston to do linear work and motion. Flanges, trunnions, and/or clevisses are mounted to the cylinder body. The piston rod also has mounting attachments to connect the cylinder to the object or machine component that it is pushing.
A hydraulic cylinder is the actuator or “motor” side of this system. The “generator” side of the hydraulic system is the hydraulic pump which brings in a fixed or regulated flow of oil to the bottom side of the hydraulic cylinder, to move the piston rod upwards. The piston pushes the oil in the other chamber back to the reservoir. If we assume that the oil pressure in the piston rod chamber is approximately zero.

The piston moves instead downwards if oil is pumped into the piston rod side chamber and the oil from the piston area flows back to the reservoir without pressure. The pressure in the piston rod area chamber is (Pull Force) / (piston area – piston rod area)

Double-stage electric pump, built-in motor
Small volume, low noise. There is a quick separating switch in built-in motor.
A precise and small liquid-filled pressure gauge in design can prevent the pointer from trembling so that the indication is more precise.
Adjust given precise torque of relief valve, high accuracy, working pressure 70-700 Bar
Adjustable remote wiring-control swith can be suitable for a person to remote-operate
Wrenches can be operated synchronously.

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