Wet Shotcrete Machine

About us

Henan Tytion Machinery Co., Ltd was established in 2003. Now it owns total assets over 3 million RMB with 90 staff including 20 professional technicians and 12 engineers. Engineers with the college degree take up more than 70% of the total staff number. The company has new modern standard workshop of 16,000 m². Henan Tytion Machinery is a professional construction machinery manufacturer integrating design, research and development, production and sales. The company is located in Zhengzhou City, Henan Province, with convenient transportation. The company mainly produces various types of grout pumps, dry and wet shotcrete machine, small drilling rigs and other construction equipment, and its products have been well received by customers.
With the company's foundation laid, under the guidance, supervision and strict requirements of the leaders, and with the active coordination and cooperation of colleagues from various departments, the company has achieved remarkable results in the past few years. It has successfully opened up markets in Southeast Asia, Africa, South America, the Middle East and other countries and regions. In the future development process, we will always based on integrity and guaranteed by technology, we sincerely serve every customer.

Why choose us?

01/

Professional manufacturer
Henan Tytion Machinery is a professional construction machinery manufacturer integrating design, research and development, production and sales.

02/

Customized services
Design and manufacture machines for you as your special requirements, provide you with project, process design, and purchase program.

03/

Quality assurance
All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.we have received ISO9001 certificate,CE certificate, etc.

04/

Rich experience
Dedicated to strict quality control and attentive customer service, our experienced staff is always available to discuss your requirements and ensure complete customer satisfaction.

What is Wet Shotcrete Machine

The wet shotcrete method involves the batching and mixing of the cementitious mix according to controlled conditions in a mixer. This is then pumped along a hose and compressed air is added at the nozzle to facilitate the spraying of the mix onto the required surface. One of the advantages of wet shotcrete vs.

Benefits of Wet Shotcrete Machine

Speedy application
Wet shotcrete machine can be applied much faster than traditional concrete, saving immensely on labor costs. It's also beneficial in situations where a quick application is necessary.

Cost-effective
Wet shotcrete machine typically has lower labor costs as less skilled labor is needed. It also has lower material costs than brickwork, as fewer bricks and mortar are needed.

Versatility
Wet shotcrete machine can be applied to any surface, including overhead and underground, making it a highly versatile choice.

Longevity
Wet shotcrete machine structures are known to last for decades, providing a long-term, cost-effective solution.

Less formwork required
Traditional concrete requires extensive formwork. However, wet shotcrete machine can be applied directly onto the surface, reducing the need for formwork.

Aquatic capabilities
Wet shotcrete machine is ideal for constructing swimming pools and other aquatic structures due to its ability to create any shape and provide a robust and waterproof finish.

Application of Wet Shotcrete Machine

Bridges
Wet shotcrete machine is likely to be used for bridge deck rehabilitation, but it is very costly for full thickness repair. However it is useful for beam repairs of variable depths, caps, columns, abutments, wing walls, and under decks from the technical point of view.

Buildings
Wet shotcrete machine is commonly used for the repairing of buildings for earthquake damage, fire and other deterioration, strengthening walls, and encasing structural steel for fireproofing.

Marine
The most damages occur from deterioration of concrete and reinforcement in marine structures. The damages basically are the results of corrosion in steel, freezing and thawing action, abrasion, impact loading, structural distress, abrasion due to the action of waves, gravel, sand, and floating ice, and also from chemical attack in presence of sulphates. Wet shotcrete machine application generally used for short outage of these damages.

Underground excavations
In the most part, Wet shotcrete machines is generally used in underground excavation in rock, but occasionally, this process mostly used for the advancement of the tunnels through altered, cohesionless, and loose soils. Basically the underground shotcrete applications ranges from supplementing or replacing conventional support materials like lagging and steel sets, sealing rock surface, channelling water flows, and the installation of temporary support and lining works.

Slope and surface protection
Wet shotcrete machine is mostly used for temporary protection of exposed rock surfaces, which deteriorate in the exposed air location. Wet shotcrete machine may also be used for permanently covering slopes, or cuts that deteriorate in time span. Therefore Wet shotcrete machine is beneficial to the surface of landfills and other waste areas to restrict the infiltration.

Operating Procedure of Wet Shotcrete Machine

Preparation procedure before wet shotcrete machine operation

Connect the air duct, water, electricity, fill the water in the cooling water tank of the wet shotcrete machine,run the wet shotcrete machine, the equipment is normal, notify the mixing station to mix, prepare for the spraying operation.
Connect all the pipelines of the wet shotcrete machine,mix10-20L cement paste into the pipeline before injection, put enough concrete material, and timely treat the stone on the hopper screen.
Start the program: turn on the wind source - start the wet shotcrete machine (start the switch to make the motor run the oil pump) - turn on the accelerator.

Blocking pipe treatment

In the case of work, always observe the working pressure of the equipment. If the pressure of the pressure gauge reaches 130 bar and does not decrease, it is because the pressure is abnormal, the accelerator should be tumed off in time, and the wet spray switch should be adjusted. Upward (reverse operation),reverse the pump several times and then stop the pump, then close the wind source, check whether the relevant parts such as the reducer tube are blocked, find the blockage, and immediately clean up.
After the pipeline is dredged, the pump operation mode is adjusted to normal operation, open air, start power supply and quick-setting agent switch.

Wet shotcrete machine cleaning

After each work, all the pipes and the hopper and piston cylinder of the pump need to be cleaned.
Open the lower door of the pump hopper, clean the concrete inside the bucket, close the lower door, fill the water, and stuff the cleaning ball into the tube to draw water until the cleaning ball and clean water flow out.
Remove all piping and rinse with water until clean.
lt is usually necessary to process an end cap of the same size as the nozzle. When plugging the head in the front section, disassemble the elbow and open the wind source so that the concrete in the pipeline is ejected from the front end by the compressed air. Add water, you can also use the quick-setting agent pump to pump water, then add the cleaning ball, open the seal, and rinse repeatedly.
Open the lower door of the discharge,rinse with water, start the reverse pump switch, rinse the discharge port with water, and clean the pump.

Wet shotcrete machine maintenance and maintenance

Check whether the injector hole in the air ring sleeve is clogged before starting each time, and clean the concrete residue of each small hole.
The equipment has seven grease fittings, which must be filled with butter before each operation.
The pump cylinder tank needs to be filled with water before starting.
Always observe the hydraulic oil level, and pay attention to ensure the cooling of the hydraulic oil during work.

Components of Wet Shotcrete Machine

Mixer
The mixer blends cement, aggregates, water, and additives to form a homogenous wet shotcrete mixture. It ensures consistent proportions and proper hydration of cement.

Pump
The pump is responsible for transporting the wet shotcrete mixture from the mixer to the application area. It generates the necessary pressure to propel the mixture through the delivery hose to the spraying nozzle.

Spraying nozzle

This nozzle is the point of discharge where the wet shotcrete mixture is expelled onto the target surface. The nozzle design plays a crucial role in controlling spray pattern, velocity, and direction.

Delivery hose

A flexible and durable hose carries the wet shotcrete mixture from the pump to the spraying nozzle. It must withstand high pressures and abrasive materials without compromising performance.

Control system

Modern wet shotcrete machines often incorporate advanced control systems. These systems allow operators to adjust parameters such as flow rate, pressure, and mix consistency, ensuring precise application and optimal performance.

How to Maintain Wet Shotcrete Machine

After every time of work, all of the pipelines, pump hoppers and piston cylinders need to be cleaned.
Open the door of the pump hopper, clean the concrete in the hopper, then close the door, fill it with water, insert the cleaning ball into the pipe and draw water until the cleaning ball and clean water flow out.
Remove all pipes and rinse with water until clean.
Use tools to block the nozzle and then disassemble the connecting elbow, open the air source to let the concrete in the pipeline sprayed out from the end. Then you can add water to the tube or use the accelerator pump to pump the water. At last add a cleaning ball and open the blockage. (this method must make sure that surrounding workers are at a safe distance).
Open the door of the pump hopper, rinse with water, start the reverse pump switch, then rinse the discharge port with water, and clean the pump pipe.

How to Choose the Right Wet Shotcrete Machine

The demand for wet shotcrete is very important
When purchasing a wet shotcrete machine, many people focus on price and performance, but neglect their own needs, resulting in over-capacity or inability to meet certain aspects. If the function is excessive, it will increase the procurement cost. It will cause trouble for future use. Therefore, be sure to determine your own wet spray materials, fields of use, and special requirements when purchasing. Never ignore the use requirements.

Can not ignore the safety of the use of wet shotcrete machine
A good wet shotcrete machine not only needs to be used in superior performance, but also has good safety protection measures, so as to avoid accidents in the subsequent wet spray process. Therefore, the safety problem must not be neglected when purchasing a wet concrete shotcrete machine, otherwise it will be endless.

Can not ignore the factory after sale
When purchasing a wet shotcrete machine, if you focus on the price alone or do not check the manufacturer clearly, this will mean neglecting the after-sales service. It is hard to say whether there is good after-sales service in the future. When buying, be sure to find a few more to compare, it is best to choose a company with strong strength and good reputation, so if there are quality problems in the future, you can have security. As for how to choose, it is best to be able to inspect it or inquire about it. Look at the customers before them, through the customer word of mouth to understand the performance and after-sales service of the wet shotcrete machine.

Our Factory

Henan Tytion Machinery is a professional construction machinery manufacturer integrating design, research and development, production and sales. The company is located in Zhengzhou City, Henan Province, with convenient transportation. The company mainly produces various types of grout pumps, dry and wet shotcrete machine, small drilling rigs and other construction equipment, and its products have been well received by customers.

FAQ

Q: What is a wet shotcrete machine?

A: A wet shotcrete machine is a specialized piece of equipment designed for spraying pre-mixed concrete, known as shotcrete, onto surfaces at high velocity. Unlike dry shotcrete, the water is mixed with the concrete before application, which provides better homogeneity and fewer rebound losses.

Q: How does a wet shotcrete machine work?

A: The machine pumps the pre-mixed shotcrete through a hose to the spray nozzle. Water is added to the mixture either through the pumping system or at the nozzle, ensuring thorough mixing just before the material is sprayed onto the target surface.

Q: What are the key components of a wet shotcrete machine?

A: Key components typically include a concrete pump, a hopper for the pre-mixed concrete, a water supply system, a hose, and a nozzle. Some machines may also have agitation systems to maintain the mix's consistency during transit and remote control options for precision placement.

Q: What are the advantages of using a wet shotcrete machine?

A: Wet shotcrete offers superior bonding, less rebound, and lower dust generation compared to dry shotcrete. Additionally, it allows for higher density and better control over the final product's properties, making it ideal for demanding applications like tunnels, basements, and swimming pools.

Q: How do you select the right wet shotcrete machine for a project?

A: Considerations include the scale of the project, the complexity of the shapes and surfaces to be coated, the desired shotcrete thickness, and the expected production rate. Machine mobility and ease of setup are also important factors.

Q: What is the importance of mix design in wet shotcrete applications?

A: The mix design significantly impacts the shotcrete's performance. Proper gradation of aggregates, the right amount of water, and the addition of suitable additives are crucial for achieving the desired rheology, setting time, and strength characteristics.

Q: What safety measures should be taken when using a wet shotcrete machine?

A: Operators must wear appropriate ppe, including helmets, goggles, and respirators. The worksite should be securely barricaded, and noise and dust mitigation strategies should be implemented. Training in safe operation and emergency procedures is essential.

Q: What kind of maintenance is required for a wet shotcrete machine?

A: Regular maintenance includes cleaning the hopper and hoses, checking the pump and motor for wear, and inspecting the nozzle for blockages. Adhering to the manufacturer's maintenance schedule ensures reliability and longevity.

Q: Can wet shotcrete machines be used for underground applications?

A: Yes, wet shotcrete machines are well-suited for underground projects like mining, tunneling, and subterranean construction. They provide a quick and effective way to reinforce and stabilize rock surfaces.

Q: What is the average output capacity of a wet shotcrete machine?

A: Output capacities can vary widely depending on the model and design of the machine. Small units may produce around 2-5 cubic meters per hour, while larger industrial models can exceed 100 cubic meters per hour.

Q: How is the water-cement ratio controlled in a wet shotcrete machine?

A: The water-cement ratio is usually controlled by metering the water supply and monitoring the mix's consistency. Some advanced machines have automated systems that adjust the water flow based on feedback from sensors.

Q: Can additives be used with a wet shotcrete machine?

A: Additives such as fiber reinforcement, accelerators, or retarders can be used with wet shotcrete to improve its performance characteristics. It's important to ensure compatibility with the machine and the correct dosage rates.

Q: What is the role of the nozzle in a wet shotcrete application?

A: The nozzle is responsible for shaping the shotcrete stream and ensuring even distribution. Nozzle selection depends on the job requirements and can influence the shotcrete's texture and consolidation.

Q: How does weather affect the application of wet shotcrete?

A: Extreme weather conditions, such as very low or high temperatures, can impact the shotcrete's curing and final properties. Measures may be taken to heat or cool the mixture or to protect it from direct exposure to adverse weather.

Q: What is the cost of running a wet shotcrete machine?

A: Operational costs include fuel or power consumption, maintenance expenses, labor costs, and the price of the shotcrete mix. The total cost will depend on the intensity of use, the complexity of the project, and the efficiency of the machine.

Q: How does a wet shotcrete machine differ from a dry shotcrete machine?

A: The main difference is the mixing process; a wet shotcrete machine mixes all ingredients including water before pumping, while a dry shotcrete machine introduces water at the nozzle. Wet shotcrete typically has less rebound and produces a more uniform finish.

Q: How do you minimize rebound when using a wet shotcrete machine?

A: Minimize rebound by preparing the surface properly, using the correct nozzle and spraying technique, and ensuring the mix has the proper consistency. Also, avoid over-spraying and keep the area clear of debris.

Q: What types of projects are wet shotcrete machines best suited for?

A: Wet shotcrete is ideal for large-scale projects, such as tunnels, mines, basements, and swimming pools, where uniformity and bonding strength are crucial. It's also commonly used for slope stabilization and rock support.

Q: Can wet shotcrete machines be used for large-scale projects?

A: Yes, wet shotcrete machines are designed to handle large-scale projects and can be equipped with features like multiple hose setups and automated controls to increase efficiency and productivity.

Q: Can wet shotcrete machines be used with specialty materials?

A: Yes, wet shotcrete machines can accommodate various additives and specialty materials, such as fibers, pigments, or chemicals, to achieve specific properties.

We're well-known as one of the leading wet shotcrete machine manufacturers and suppliers in China. Please rest assured to buy used wet shotcrete machine for sale here from our factory. For price consultation, contact us.

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