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.
Main Characteristics of Hydraulic Pump-type Wet Spraying Machine
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.
Configuration of Hydraulic Pumping Wet Spraying Machine:.
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.
|Concrete pump||Max. theoretic concrete spray volume||m³/h||8|
|Max. theoretic delivery pressure||Mpa||7|
|Max. delivery frequency||Times /min||16|
|Type of distribution valve||S tube valve|
|Main oil cylinder specification: cylinder dia./role dia.× stroke||mm||Φ140×1200|
|Diameter of delivery cylinder||mm||Φ100|
|Power system||Engine Model||1004-4 LOVOL|
|Hydraulic system||Type of Hydraulic oil circuit||Open circuit|
|Maximum oil pressure of main system||Mpa||25|
|Hydraulic oil tank volume||L||200|
|Other parameters||Max. stone diameter||mm|| |
≤15 When spray
|Pipeline inside diameter||mm||Φ57|
use S-valve to switch the direction, for fine stone concrete conveying
good sealing S-valve, installed with floating wear resistant ring
High-quality wear resistant alloy components for long service-life
high delivery pressure for demand of high-rise and long distance projects
double-loop open circuit hydraulic system, ensure fast direction switching speed and high efficiency
air cooling system, without dependence of external water supply
with re-pumping function to smooth construction of better accessibility
automatic lubrication system for long service-life
PLC system to ensure best electrical control performance
equipped with wired remote controller, easy to operate
Areas of application:
The SAINTYOL DAWIN Machinery wet concrete shotcrete pump are based on technical pioneer achievements. They keep researching and developing new technology - and have been doing so for many years!They are the national initiative equipment for fine stone concrete conveying and won two national patents.
·Fine stone concrete conveying
·Floor heating construction
·Tunnel and underground construction
·Used as spray pump when Installed with incidental spraying equipment, for concrete, mortar, refractory material and green soil spraying
DSPJ08-07-56 wet concrete shotcrete pumpare applied for high-rise conveying, railway, tunnel, bridge construction and special applications, hydraulic power, mining and national defense.
We take care of your order!
1. Best manufacturer in North China.
2. A factory with over 20 years' experience.
3. Professional teamwork of every process.
4. Competitive price and perfect quality.
5. Efficient after-sale service.
SAINTYOL DAWIN Machinery Answers:
Q: How many kinds of trailer concrete pumps you have?
A: We have all kinds of concrete pumps such as small models with capacity 20,25, 30,40m3/h, medium models with capacity 40, 50m3/h, large models with capacity 60, 803/h.
Q: Do you have concrete placing booms that could be working together with concrete pump?
A: Yes, We have below series.
1: 13/15/17m Manual Mechanical Spider Concrete Placing Booms
2: 13/15/17Mobile Hydraulic Spider Concrete Placing Booms
3: 28/32m Floor Climbing Type and Elevator Well Shaft Climbing Concrete Placing Booms (Tubular Column)
4: 21/24/28/32 Elevator Well Shaft Climbing Concrete Placing Booms (Mast Section)
Q: What is the configuration?
A: For exporting, most of the components are world famous top brands such as LOVOL, DEUTZ, Siemens, Rexroth, Kawasaki, Schneider, Omron, LG, Eaton, Manuli, Parker etc. The configuration could be customized according to client's requirements.
Q: Is engineer available for training and after sales service?
A: Yes, our oversea engineers team are standing by for oversea service. Some engineers could speak English.
1.May enjoy the life-long service after you buy our products.
2.Training the operator for free.
3. Under the condition that foundation, water source, power source, aggregate, hosting
equipment, auxiliary staff is ready. Engineers are available if you need.
4.Certain quantity stochastic tool will be provided while delivering goods.
5.Within 48 hours service will be available according to different regions after received
6. For exported products, Our company sends the constructor to help to operate and
management equipment, time according to your needs. The related fee will be undertaken
7. Promptly provides the fittings according to users' demands, handles for the user consigns
8. All products (easy worn parts not included) loss caused by non-human factors will be
free of charge for half a year.
9. Provides the technology advisory service as necessary.
10. Please contact me via telephone when you have any problems with the plant.
Welcome to our website and hope our trailer wet concrete shotcrete pump will make you satisfied.We think creatively,design bravely,manufacture precisely and loyalty to our customers. And we have our own factory.so We can produce the products,according to customer requirements .
Enjoy SAINTYOL DAWIN Machinery Enjoy Better Life!
Saintyol Dawin Machinery