Pneumatic Angle Grinder

Item No:MP09675

 

 

1. The core role and application scenarios of pneumatic angle mills

The pneumatic angle grinder is a high-speed rotating grinding tool with compressed air as the power source. It achieves various processing needs by installing different types of grinding wheels, cutting plates or polishing wheels. It is mainly used in the following fields:

 

1. Metal processing and manufacturing

Cutting operation:

Cutting steel, stainless steel, aluminum alloy and other metal plates, pipes and profiles (such as angle steel and channel steel) is suitable for material cutting in steel structure factory construction and mechanical maintenance.

Combined with special cutting blades, bolts, welds or metal parts can be quickly cut off (such as dismantling rusty chassis parts during car maintenance).

 

Grinding and polishing:

Polishing burrs, welding slag, and oxide scale on the metal surface, such as welding seam smoothing and casting burr removal.

Chamfering, t*, or grinding metal parts to create grooves at specific angles (such as pretreatment before welding of pipes).

 

Polishing and rust removal:

Install polishing wheels or steel wire wheels to polish and polish the metal surface (such as surface treatment of stainless steel products), or remove rust and paint layers (such as surface treatment before corrosion protection of ships and bridges).

 

2. Construction and decoration industry

Stone and concrete treatment:

Cut tiles, marble, granite and other stone materials for size cutting of wall and floor decoration.

Grind raised parts of the concrete surface, or cut concrete grooves (such as grooving during hydropower installation).

 

Structural transformation:

Demolish metal components in buildings (such as used steel bars and angle steel brackets), or cut door and window openings in concrete walls.

 

3. Automobile and machinery maintenance

Body repair:

Polish scratches and rust on car sheet metal parts, or cut damaged body parts (such as removing old parts when replacing doors and fenders).

 

Parts processing:

Grind burrs on engine parts, or cut aging bolts and nuts (such as removing stuck engine support bolts).

 

4. Wood and plastic processing

Wood cutting and polishing:

Install a special cutting blade for carpentry to cut wooden boards and squares; use it with a sandpaper wheel to polish the wood surface until smooth (such as details in furniture making).

 

Plastic processing:

Cut plastic plates and pipes, or polish the burrs of plastic parts (such as model making, acrylic processing).

 

5. other scenarios

Ship and aviation maintenance: polishing hull welds and removing surface coatings of aircraft parts;

Artistic creation: Carving or shaping on metal, stone and other materials (such as sculpture making).

 

 

 

2. Advantages of pneumatic angle mills

Strong power: compressed air drive can provide continuous high speed (usually 10,000 - 20,000 rpm) to adapt to high-intensity operations;

 

High safety: There is no risk of electric shock from electric tools, suitable for humid environments (such as construction sites, ships), and no sparks, and can be used in explosion-proof scenarios;

 

Portable and flexible: The body is light in weight (about 1-3kg), easy to operate by hand, suitable for multi-angle operations;

 

Simple maintenance: Compared with electric angle grinders, the internal structure is less, the failure rate is low, and regular lubrication is needed.

 

 

3. Usage methods and operating steps

1. preparations

Tools and accessories inspection:

Confirm the air source pressure (usually 6- 8 bar), connect the pressure-resistant air pipe, and check whether the interface leaks;

Select the appropriate grinding wheel/cutting blade according to the operation requirements (such as ultra-thin resin blade for metal cutting, alumina grinding wheel blade for polishing), and ensure that the blade is crack-free and firmly installed (tighten the fixing nut).

Security protection:

Wear protective glasses, dust masks, and non-slip gloves, tie up long hair, wear tight-mouth work clothes, and prohibit wearing jewelry;

Clean debris in the work area to ensure good ventilation and keep away from combustibles.

 

2. Start-up and operating specifications

Starting steps:

Slowly turn on the air supply switch and let the angle grinder idle for 1-2 minutes to check whether the operation is smooth and there is no abnormal noise;

After confirming that there is no error, lightly rest the grinding wheel/cutting blade on the workpiece, and then gradually apply pressure (to avoid sudden force causing the blade to crack).

Homework skills:

Cutting operation:

Keep the angle grinder perpendicular to the workpiece and move at a constant speed to avoid sawing back and forth (easily damaging the blade); if the blade becomes stuck during the cutting process, the air supply should be turned off immediately to check whether the workpiece is fixed or whether the blade is worn.

Polishing operation:

The grinding wheel forms an included angle of 15°-30° with the surface of the workpiece, and moves it left and right to grind to avoid long-term single-point grinding (to prevent overheating of the workpiece or uneven wear of the grinding wheel).

Polishing operation:

After installing the polishing wheel, run it at a low speed (the air source valve can be adjusted to control the speed) and apply pressure evenly to avoid local over-polishing.

 

3. Downtime and maintenance

Stopping steps:

After the operation is completed, turn off the air supply switch first, and wait until the grinding wheel completely stops rotating, remove the accessories or move the tools.

Daily maintenance:

After each use, use compressed air to clean the dust inside the fuselage, drop 2-3 drops of special lubricating oil for pneumatic tools into the air inlet, and idle for 10 seconds to lubricate the internal parts;

Regularly check the wear condition of the grinding wheel plate. If the edge becomes dull or cracks appear, replace it in time;

Avoid a humid environment during storage, and place the air pipe and the angle grinder separately to prevent extrusion.

 

 

 

4. Safety precautions

Illegal operations are prohibited:

It is strictly prohibited to use grinding wheels with defects or exceeding the rated speed, and it is prohibited to use angle mills to cut flammable and explosive materials other than wood (such as plastic and rubber, which may cause fire due to friction heat);

Do not polish the workpiece with your hands. Use a bench vise or fixture to fix it to avoid hand injuries.

 

Air source and equipment safety:

The air pipes need to be high-pressure resistant models (pressure resistance ≥10bar) to avoid using aging or damaged air pipes to prevent bursting;

Maintain balance during operation to avoid the angle grinder from shaking out of control. It is strictly forbidden to aim the grinding wheel at others.

 

 

 

 

 

 

 

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