Coal Mining Equipment Hydraulic Double Telescopic Prop Support Cylinders

Product Details

Hydraulic support jack double telescopic column in the working face is very common, its main cylinder block in the cylinder block and other main components, about the hydraulic support jack double telescopic column you know how much?

1. The middle cylinder and bottom of the double telescopic cylinder of hydraulic support jack are welded, and the surface is plated with milky chrome and hard chrome, to increase the ability of corrosion resistance, friction resistance and impact resistance. The piston assembly is composed of the guide ring, piston, limit mode and connection fixed parts. Hydraulic support jack seals generally choose mountain shape, drum shape, thunder shape, trapezoidal seal ring and other forms, and with the piston guide ring, with strong anti-extrusion, reliable sealing, long life and other characteristics.

2, cylinder body is mainly made of cylinder bottom and cylinder barrel welding, cylinder bottom and bracket base hinge. Hydraulic support jack cylinder head guide sleeve is mainly composed of guide sleeve, seal, JF dust ring, cylinder head connection, etc. The guide sleeve and the cylinder head connection way have thread, clip ring and steel wire connection, two kinds of ways are used more.

3, the bottom valve is used for double telescopic column, to control the column two cylinder and column expansion sequence, and keep the two cylinder to obtain the same work resistance as the first cylinder.

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