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Xisihuan Ring-Road East, Tielu, Xiliu Lake sub-district, Zhongyuan District, Zhengzhou, Henan China

Refractory gunite machine for subway rail wheel

2016-08-05 14:53:26

LZ-3ER refractory gunite machine from Lead Equipment Company is widely used for lining kilns, boilers, furnaces and concrete building repair.

refractory gunning machine

LZ-3ER refractory gunite machine

With the rotary gun, materials is placed in the gun gopper where it feeds into a wheel with pockets at the base of of the hopper, the wheel turns by motor driven gears powered by electric or compressed air. When the feed wheel rotates, the loaded pockets pass under an air inlet section which forces the refractory material to the outlet and into the feed hose in steady flow. The refractory material passes along the hose to the nozzle, where it is mixed with water and sprayed onto the pump.

Besides, water pressure at the nozzle must be at least 10 psi higher than air pressure to ensure that the wet material as it passes the water ring. LZ-3ER equipped with booster water pump, which can provide the high pressure water to drive the water into the material at the water ring.

electric water pump

Booster water pump

LZ-3ER gunite machine for refractory is equipped with new pre-dampening nozzle, the nozzle seat have two water way providing water for refractory, needle valve can adjust water flow.

shotcrete nozzle

Pre-dampening nozzle


1.    low rebound, low dust;

2.    reduce additive water amount;

3.    Improve refractory compactness and strength.



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