Concrete spraying machine | Shotcrete machine for sale

A Concrete spraying machine is a useful tool that uses compressed air to make concrete become airflow in suspensions and spray it onto the coated surface in order to achieve the purpose of support.

Concrete Spraying Machine Movable at Best price

The Shotcrete Machine is the main equipment for concrete construction. With the advantages of high mechanization, simple operation, high efficiency, YG Concrete Spraying Machine have become more and more widely used on various occasions, such as tunnels, highways, railways, water wells, rock slopes, coal mine shafts, etc.

 

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As a TOP concrete spraying machine manufacturer, YG Machinery provides two types of concrete spraying machines: wet concrete spraying machine and dry concrete spraying machine. You can go to part 1 to learn about their differences.

concrete spraying machine
concrete spraying machine

concrete sprayer machine
concrete sprayer machine

Parameters of Concrete Spray Machine

 

Wet shotcrete machine

Model HSP-5 HSP-7
Capacity 5m³/h 7m³/h
Maximum conveying distance Horizontal:30m

Vertical: 20m

Horizontal:30m

Vertical: 20m

Applicable material water-cement ratio <0.4 <0.4
Maximum particle diameter 15mm 15mm
Motor Power 5.5kw 7.5kw
Size 128*700*1280mm 2000*800*1300mm
Weight 700kg 800kg

 

Dry concrete sprayer machine

Model PZ-3 PZ-6(5) PZ-7
Capacity 3m³/h 6m³/h 7m³/h
Maximum conveying distance 200m 200m 200m
Applicable material water-cement ratio <0.4 <0.4 <0.4
Maximum bone fire particle size 20mm 20mm 20mm
Rotor body diameter 350mm 440mm 480mm
Work pressure 0.4-0.6mpa 0.4-0.6mpa 0.6-0.8mpa
Motor Power 3kw 5.5kw 7.5kw
Size 1040*550*950mm 130*705*1300mm 1600*750*1200mm
Weight 260kg 600kg 700kg

 

Differences between wet et dry shotcrete machine

The wet concrete shotcrete machine is relative to the dry concrete sprayer machine. A Concrete wet sprayer machine is ideal for anchor spray construction. Here are the differences between the wet sprayer machine and the dry sprayer machine:

  1. Dry concrete spraying machine is a kind of concrete spraying technology commonly used at home and abroad. During the construction process of the dry spraying process, the dust is large, water and water ash are added to the nozzle. Inaccurate control and insufficient cement splash affect the quality of concrete.
  2. A Wet concrete spraying machine can fundamentally solve the three major problems in the above sprayed concrete operation. The spraying dust concentration of the wet spraying machine is less than 8%, rebound rate is less than 10%, and the water-cement ratio is controlled accurately, which can make the cement fully water. The sprayed concrete has high strength.
  3. Compared with a dry concrete spraying machine, the wet concrete sprayer machine can greatly save cost, the wet spraying dust is small, and the workers’ health is guaranteed.
  4. The one-time spraying thickness of the wet shotcrete machine is easier to meet the requirements than that of a dry concrete spraying machine. The concrete density and surface flatness are reliably guaranteed, and the support quality is greatly improved.

More and more bolt shotcrete support projects have used wet shotcrete machines, with the enhancement of people’s awareness of environmental protection and the improvement of the quality of shotcrete.

wet concrete sprayer machine
wet concrete sprayer machine

dry concrete sprayer machine
dry concrete sprayer machine

Read more: Non-Curing hot melt spraying machine at best Price

 

Advantages of wet concrete sprayers machine with dry shotcrete machine

 

  • Good spraying effect: Dry sprayer spraying effect is not as good as that of wet spray machines;
  • Easy to operate;
  • Low DUST: Dry spray machines will produce a lot of dust, which will pollute the environment. We have been advocating environmental protection for several years. Moreover, the dust can also cause harm to workers’ bodies. PS: So if you want to use a dry spray machine, I advise buying a small fog cannon dust suppression;
  • Reliable technical performance;
  • In terms of cost, a dry concrete shotcrete machine requires more manpower than wet concrete sprayers.

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Working Principle

  1. Add mixed material into the spray machine.
  2. The machine will send the concrete to discharge.
  3. Air compress will blow off the material and send the cement into the feed pipe.
  4. When the material arrived at the sprinkler, the system will add some water or liquid(when needed), and the concrete will be sprayed out through the nozzle.

Conclusion

YG Machinery is a top and professional supplier and manufacturer of construction equipment. If you are interested to purchase environmental equipment, rebar machinery (such as rebar straightening and cutting machine, thread rolling machine, rebar bending machine, etc.), production line, please feel free to contact us or leave your messages below.