YT4-8A Hydraulic Pusher

Profile

YT4-8A Hydraulic pusher is a mine mobile devicerelates to mine area. The structure of the cylinder wall at the front and rearin the same direction are respectively fixed with front and rear hydraulicvalves and hydraulic valves, the valve between the two opposite sides of theouter wall of the fixed cylinder with a positioning axis Between the two valvethe two opposite sides of the cylinder wall fixed with positioning axes;cylinder by positioning axes located on the bracket lengthwise hole; holderfixed with the bottom floor, floor near the end of the piston rod upturned;holder fixed on top of the top seat with choking, choking the top portion ofthe groove structure seat tilted back, and with the horizontal angle of 20 °-24 °.

The utility model designis reasonable, hydraulic liquid injection gun injection fluid and the cylinderseparation, push the slide is easy to move the cylinder adjustable at bothends; piston rod connected with the block of coal plates normal contacts,extended equipment life.

parameter

rated push39.2kN 
rated recovery pull9.3kN 
Push speed （the handle back and forthonce）　17mm
handle lift 7mm
handle down10mm
The vertical Angle of the largest stroke
Pump body low60°
pump body high14°
Power ratio≈90times
dimension（when the piston rod back）stroke 600mm855×135×210
stroke 800mm1055×135×210
use weight stroke 600mm32.5kg
stroke 800mm38kg
first inject oilstroke600mm3.3kg
stroke 800mm3.86kg
drilling dia.：80mm，outer dia.：855*135*210