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Pressure mobile sandblasting machine series products are widely used in rust removal and FRP products, gypsum products, resin products, decorative products, stone, jade and other products demoulding wax removal and surface passivation treatment. It is a professional and high-efficiency processing machine for sandblasting and three-dimensional carving operations, shipbuilding sandblasting, surface treatment, rust removal, anti-corrosion treatment and denim clothing fancy sandblasting before painting of steel structures such as bridges, railways, containers, and petrochemical facilities.

The automatic pressure relief type steel structure rust removal and anticorrosion sandblasting machine produced by Dongguan Meijun Sandblasting Equipment is an automatic sandblasting machine with automatic safety guarantee performance operated by one person. It is easy to use, and the wearing parts are separated from the cylinder parts, reducing the replacement of consumables. Cost. At the same time, our tanks are welded by large machines to ensure product quality. Our tanks have been finely polished, sandblasted and sprayed, which has a strong anti-rust ability

FRP industry application introduction:

FRP and resin products sandblasting machine has better demoulding, wax removal and passivation effect than manual grinding, saving labor by 20 times and increasing efficiency by 40 times!

Sandblasting glass fiber reinforced plastic products and resin products with a sandblasting machine can quickly clean the wax attached to the surface after demoulding, passivate the surface of the product, increase the roughness, and increase the adhesion of the subsequent painting and batch powder. 3-5 times higher.

After experiments, it can save labor by 20 times and increase efficiency by 40 times. Case: A FRP mask model the size of a human face, it takes 5-8 minutes to grind with a manual hand grinder, while it takes about 10 seconds to use a sandblasting machine. If the one-man-operated pressure sandblasting machine produced by Meijun sandblasting equipment is used, the efficiency will be higher, which can save a lot of labor and increase the efficiency of product forming.

At the same time, the pressure relief type automatic exhaust sandblasting machine produced by Meijun is safe to use. It generates air pressure when it is turned on, and it releases air pressure when it stops. All operations are controlled by only one person through the control switch on his hand, which is simple and applicable. Welcome to understand!  

Machine parameters:

Sand tank diameter: 600MM  sand tank height: 1300MM

Sand tank volume: 0.3 cubic meters 

Rust removal efficiency: 15-30 square meters / hour

Air consumption: 3 cubic meters / minute (single gun)

Air source pressure: 0.6-0.7MPA

By configuration:

1) Basic type: pure manual type, which is basically a pressure-holding assembly.

Inlet valve (ball valve control switch) + sand adjusting valve (ball valve control switch). Without electric control and pneumatic control system, 2 people are required to operate at the same time, one person takes a gun to blast the workpiece, and the other person controls the machine switch.

2)Pressure maintaining type: electric control type or pneumatic control type

Intake valve (aluminum alloy globe valve) + sand control valve (EMPAIR air-controlled sand valve or manual sand valve).

The sand tank is always under pressure and needs to be manually relieved.

The characteristics are: no matter any switch on the spray gun, as long as the exhaust ball valve on the top side of the sand tank is not opened, the pressure in the cylinder will not be removed (except for the self-discharge of the manual sand valve: it will cause serious sand accumulation in the sand pipe), suitable for short-term spot blasting.

3) Pressure relief type: electric control type or pneumatic control type

Intake valve (aluminum alloy globe valve) + sand control valve (EMPAIR air-controlled sand valve or manual sand valve) + automatic air-controlled exhaust valve.

When the sand tank is blasting, the pressure in the tank is the working pressure, and the tank is automatically exhausted when it stops, and the pressure in the tank is 0, which is suitable for long-term large-area blasting.

The pressure in the tank will never exceed the limit pressure, which plays the role of safety guarantee, and is also a necessary assembly method for automatic sand return.

1, Compact structure, superior performance, simple and convenient operation.

2. The design and production of the cylinder body conform to the pressure vessel standard, which is safe and reliable.

3. Standard common parts are used, which are easy to replace and the cost is lower.

4. The instant control function is installed, using electric control or pneumatic control to meet the different needs of customers, and can be operated by a single person.

5. The shell is sandblasted and adopts advanced anti-rust spray paint to prevent rust.

6, add wheels, easy to move.   

Advantages of using pressure sandblasting machine:

It can replace the pickling and phosphating process, and does not involve the problem of sewage. Rapid sand blasting and rust removal can also remove welding slag, burrs and burrs while changing the surface roughness.

High efficiency, low cost and good quality are unmatched by traditional chemical and manual rust removal. After sandblasting, the paint quality is good and the coating life is long. It is a general process method currently used internationally.

Working principle of pressure sandblasting machine:

This machine adopts the pressure feeding type sand blasting (shot blasting) mechanism, that is, the high-speed flow of compressed air in the high-pressure tank is used to form a high-pressure effect, and the sand material in the high-pressure tank is sprayed out through the sand conveying pipe.

Then, along with the compressed air, it is sprayed from the gun nozzle to the surface of the workpiece at a high speed to achieve the purpose of sandblasting.

Scope of application of pressure mobile sandblasting machine:

Mainly used for: surface cleaning, engraving, spray processing, descaling, burr, welding scar, glass shot, strengthening the surface of decorative parts. Can also be used for spraying、

Pre-plating treatment process (all surface treatments to improve the adhesion of the coating surface)

The series of pressure mobile sandblasting machines are widely used in

1) Surface sandblasting cleaning and three-dimensional carving and carving operations of glass, marble, ceramic tiles, molds, fitness and amusement equipment;

2) Sand blasting for shipbuilding, surface treatment, rust removal and anti-corrosion treatment for steel structures such as bridges, railways, containers, oil pipelines, chemicals, mining facilities, water conservancy projects, port construction, etc. before painting;

3) De-waxing and deburring on the surface of glass fiber reinforced plastic, carbon fiber and plastic products

Abrasive Control:

Sand for sandblasting and rust removal requires hard particles, angular, dry and free of soil and other impurities;

Brown corundum, black corundum, and emery are good for those with high requirements, quartz sand is good for those that require economical benefits, and coarse river sand is also acceptable;

The selection of abrasive should consider factors such as sand transportation conditions, unit price, recycling capacity, etc.;

The particle size of the sand is preferably 0.5 to 1.5 mm. Before screening, it must be dried in the sun and stored in a shed or indoors.

The sieve size is: coarse sieve 40-48 holes (particle size 1.2mm), fine sieve 372-476 holes (particle size 0.3mm)

Air source control:

Compressed air must be processed by cooling device and oil-water separator to ensure dry and oil-free;

The oil-water separator must be cleaned regularly;

The air pressure of the air compressor is 6.0×105～6.5×105Pa, and the pressure amplitude is

0.5×105～1.0×105Pa。The general sand barrel pressure is4.5×105～5.5×105Pa，must not be less than4.0×105Pa。

Job Protection Requirements:

 The non-sandblasted parts should be shielded and protected before sandblasting.

Before sandblasting, check whether the various pipes and control valves of the sandblasting machine are well connected, whether they are in the appropriate switch position,

Whether the protective tools, safety belts (ropes) and oxygen supply devices worn by sandblasters are safe and reliable, as well as the wear of the nozzles, when the orifice

The nozzle should be replaced when the diameter increases by 25%.

Operation Control:

When sandblasting, the distance between the nozzle and the surface of the base steel should be 100-300mm.

The angle between the spraying direction and the normal line of the surface of the base steel should be 15°~30°. After sandblasting and rust removal, and before the next process,

In case of rain or other conditions that cause the surface of the base steel to be wet, use a dry

Compressed air is used to dry the surface moisture before construction. If sandblasting is required again, the abrasive requirements cannot be reduced to avoid reducing the roughness.

Company Name: MaginDongguan Humen Meijun Sandblasting Equipment Store

Address: No. 33, Xinxing Road, Xinlian Community, Humen Town, Dongguan City

Telephone:0769-82261696 contact phone：13215392671  13238321213 

Company official website:http://www.dgmagin.com

elsonzhong@163.com  QQ:491440166