Shotcrete process is to use compressed air to convey the pre-dampened mix through delivery hose to the nozzle to project the material onto the sprayed surface under high velocity, and then to form concrete support layer after the projected material coagulates and hardens. With simple technology, special effect, economy cost, flexibility and high construction efficiency, shotcrete technology has widely been applying in construction, railway and super highway engineering, underground engineering, tunneling, mining operations, hydropower projects and slope stabilization, etc. and showing prosperous future.

SD-9 is SUG large-sized shotcrete machine for the spraying process.
SD-9 can be used for large-section tunnel, mine ,etc
SD-9 is available in following versions:
Basic: electric drive can be combined with tyre chassis
Extended (optional): Air motor drive or diesel drive combined with single hydraulic power pack
Skid or Rail-wheel

Main Features
Non-adhesion going-through rotor with new material chamber, completely eliminate bonding and blocking during operation so as to reduce clearance and maintenance period.
Thin flow conveying method with vortex flow, so the spraying flow is even, continuous and steady, to improve the shotcrete quality
Four-point clamping device make it easy to adjust the press between sealing plate and rotor disk so as to no air and dusk leak and prolong consumption parts life