Schwing Rock Valve

Schwing Rock valve is the core mechanism of concrete pump. It is located between hopper, concrete cylinder and delivery pipe. The rock valve has small inlet and outlet, small pumping resistance, convenient maintenance and durability.


Schwing 10181912 10059467 rock valve


Rock valve technical data

Schwing rock valve is made of 25CrMoV, strong toughness and wear resistance.


C Si Mn Cr Mo V
0.22~0.29 0.17~0.37 0.40~0.70 1.5 0.25~0.35 0.15~0.30


Mechanical Property

Tensile Strength σb Yield Strength σs Elongation δ5 Reduction of Area ψ Impact Absorption Energy Aku2
≥ 930Mpa ≥ 780Mpa ≥ 14% ≥ 55% ≥ 63J


Supplying Range

Item Part Number Size
1 10059467 DN210/180
2 10181912 DN220/180



Rock valve work at hopper, and the bottom of the rock valve can be perfectly fitted with the hopper, which solves the stubborn problems of S valve, such as easy pipe plugging, large pumping resistance, large fuel consumption and so on.


Schwing rock valve system