At present, shotcrete machine is divided into two kinds: dry concrete spraying machine and wet concrete shotcrete spraying machine.

Both of them are commonly used for pouring such thin-walled structures as tunnel lining, walls and ceilings, as well as the covering layer of steel structure.

Dry spraying machine mixes cement, sand and gravel in a dry and evenly state, a method to compress the air to deliver materials to the nozzle where they are mixed with pressure water for pouring; it must be operated by skilled personnel, and the particle size shall not be too large, however, as large amounts of cement are required and the jet velocity is large, which lead to severe dust pollution and rebound, its usage is thereby restricted.

Wet spraying machine delivers well mixed concrete to the nozzle through conveying and pumping, and compressed air is added at the outlet of delivery pump, which makes materials and air fully integrate with one another in the pipe, so that perfused materials become more even. In addition, accelerator is sprinkled on the nozzle for making materials solidify rapidly and reducing the rebound rate. Besides, its working efficiency is higher than dry spraying machine as the mixture of materials can be easily controlled.

Wet spraying machine is widely used for concrete spraying operation in places such as mine, tunnel, culvert, railway, hydro-power project, underground engineering and revetment.

• The system is more reliable and delivery capacity is stable in adopting hydraulic pumping.
• It has large volume of delivery, long distance of delivery and high efficiency of construction.
• Sprayed concrete is of high performance and strength, as well as being dense and homogeneous.
• The main oil pump adopts variable displacement piston pump of constant power; and the delivery amount, which can be freely adjusted according to needs, is controlled by PLC.
• S pipe surfacing electrode of high strength, wear plate and cutting ring are inlaid with hard alloy of high strength, which not only improves the wear resistance, but increases the service life of parts.
• It is equipped with multi-point electric lubricating pump. And together with automatic and effective control of grease's filling amount and time, contributing to the fact that the service life of wear-out parts are effectively increased.
• Air cooling avoids damage caused by water cooling in winter.
• Accelerator is added and controlled by metering pump of domestically famous brand, achieving accurate measurement and realizing stepless speed regulation.
• Harm on the health of operator is reduced by lowering dust concentration beside the machine and of the nozzle.
• Humanized design of product makes operation and maintenance become easier, with reliability effectively guaranteed as well.

• Power System: it adopts motor and diesel engine of domestically famous brand.
• Main Oil Pump: it adopts variable plunger pump, which guarantees the stable and reliable operation of system, while its overpressure relief function realizes the effective protection of main pump and motor.
• Lubrication System: it adopts separate lubrication of five points, and "point-to-point" lubrication guarantees that critical parts won't be worn out, thus increasing their service life.
• Accelerator Metering Pump: reciprocating piston diaphragm pump is of high temperature resistance, erosion resistance and abrasion resistance, with high accuracy of measurement, and its speed can be regulated steplessly.
• Characters of electronically controlled reversing system: low pumping pressure and high reversing speed, which reduce reversal impact and operator's labor intensity; two separate hydraulic circuits make the oil supply of system more stable; operation becomes simple and reliable through accurate control of PLC, which increases reversal speed of swing cylinder while reducing the reversal impact, at the same time, instantaneous action of large cylinder's reverse is accelerated, making concrete cylinder become substantial, increasing the continuity of materials supply and realizing even discharge.

• S-valve component ensures seamless switching and excellent fine stone concrete conveying.
• A tight-sealing S-valve design integrated with a floating, highly wear-resistant ring.
• High-quality, wear-resistant alloy components specifically engineered for an extended service life.
• Excellent high delivery pressure configured for high-rise and long-distance engineering tasks.
• A double-loop open circuit hydraulic layout guarantees highly responsive and stable flow direction control.
• Integrated air-cooling setup eliminates dependencies on external water systems.
• Re-pumping feature is accessible, easing overall construction flow and accessibility.
• Automatic point lubrication provides comprehensive, long-term coverage.
• Smart PLC module maximizes precision in electrical operations.
• Shipped alongside an ergonomic, wired remote control for convenient site operation.

Our concrete conveying and spraying machinery stands on a proven line of engineering innovations. The equipment represents one of the pioneering domestic designs dedicated to accurate and smooth concrete conveying, holding distinct structural advantages.

• Fine stone concrete conveying
• Floor heating construction
• Tunnel and underground infrastructure construction
• Mortar pumping and delivery
• Acts as a highly robust spray pump when fitted with specialized spraying rigs (suitable for concrete, mortar, refractory material, and landscaping green soil spraying).

This series of wet concrete shotcrete pumps is exceptionally reliable for high-rise building sites, railway operations, tunneling, bridge building, hydraulic projects, mining, and military/national defense applications.

Our manufacturing facility specializes in the research, design, and production of construction machinery for nearly 20 years. We provide the most reasonable solution according to the special demand from different customers. With several researching and producing bases, we can provide powerful technical services and upper quality machinery for clients all over the world.

• 1 Best professional manufacturing standards.
• 2 A factory built on over 20 years of hands-on industry experience.
• 3 Dedicated professional teamwork detailing every production process.
• 4 Competitive market pricing coupled with perfect quality control.
• 5 Efficient and supportive after-sales system.

1. 1 Enjoy lifelong technical assistance and support after purchasing our products.
2. 2 Free operator training and machine setup demonstrations.
3. 3 Professional engineer support is available on-site if your foundations, power supplies, aggregate machinery, and auxiliary staff are fully configured.
4. 4 Standard stochastic maintenance tools are packaged with every equipment shipment.
5. 5 Within 48 hours, support responses are guaranteed based on region.
6. 6 For international orders, technicians are available to assist with startup setup and structural management as requested.
7. 7 Prompt delivery of original replacement parts based on user requests.
8. 8 All major mechanical parts (excluding naturally wearing parts) are covered free of charge for half a year in cases of non-human failure.
9. 9 Lifelong technology advisory solutions are provided.