150mm Pneumatic Angle Grinder
150mm Pneumatic Angle Grinder suppliers
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150mm Pneumatic Angle Grinder

● High-efficiency speed: 6600 rpm no-load, high grinding efficiency.
● Energy-saving design: the specific air consumption per unit power is less than 28.79 liters per second per kilowatt, and the energy consumption is lower than the industry average.
● Safe and reliable: pneumatically driven, no electrical sparks, smooth operation, high safety performance.
● Widely applicable: widely used in industries such as boilers, shipbuilding, and bridge construction.
● High compatibility: standard 16mm air pipe, suitable for industrial air source systems.

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Product Introduction

Product introduction

The S150 type pneumatic grinder is a professional pneumatic tool designed specifically for industrial surface treatment. The whole machine weighs 5.4 kilograms and has a main shaft power output of 1.21 kilowatts, making it a powerful, versatile, and reliable heavy-duty grinding and polishing pneumatic tool. It is particularly suitable for large castings cleaning, weld seam grinding, and various surface treatment tasks in demanding industrial environments, making it an ideal choice for improving work efficiency and ensuring operational safety.

S150 product Parameter (specification)

Parameter name	Unit	Data
Weight	kg	5.4
Length	mm	476
Idle speed	r/min	≤6600
Load speed	r/min	3300±5%
Specific gas consumption	L/s·kW	≤28.79
The maximum diameter of the grinding wheel.	mm	Φ150
Power	kW	≥1.21
Tracheal diameter	mm	φ16
Operating pressure	MPa	0.63

Product feature and application

Structural features:

Powerful drive: driven by compressed air, the unloaded rotational speed can reach up to 6600 RPM, providing strong rotational power to ensure smooth operation of the equipment.
Safety explosion-proof: pneumatically driven, no electrical sparks, especially suitable for flammable and explosive environments such as ships and chemical industries, safe and reliable.
High-efficiency work: 150mm large diameter grinding wheel, covers a larger grinding area, improving work efficiency.
Economical and durable: low gas consumption per unit power, cost-effective energy use; made from industrial-grade materials, sturdy and long-lasting.

Application fields:

Shipbuilding and maintenance: grinding of hull weld seams, deburring of large castings, rust removal from the hull surface, and stripping of old paint layers.
Boilers and chemical machinery: used for welding seam grinding and surface treatment of pressure vessels, reactors, pipelines, and other equipment. Its pneumatic explosion-proof characteristics perfectly meet the safety regulations of flammable and explosive areas such as chemical workshops and tank farms.
Heavy machinery manufacturing and maintenance: cleaning large castings, grinding gates and risers of large and medium-sized castings, weld seam grinding and surface treatment, used for grinding large machine parts, molds, and weld seams.
Automobile manufacturing and maintenance: Used for polishing metal parts during automobile manufacturing, and used to remove old paint and rust during repairs.

Products Description

Industrial explosion-proof design with a 125mm precision grinding head: specifically designed for high-intensity work in ships and chemical industries.

High-strength alloy steel + CNC machining: Made from heavy industry-grade materials, supports long-term overload operation without failure, worry-free after-sales service!

Forging and heat treatment technology: enhancing the hardness and toughness of core components.

Why choose us

Multifunctional application

Involves multiple processes from rough grinding to fine grinding: grinding weld seams, removing burrs from castings, and surface finishing of molds.
Rust removal, polishing, and buffing of metal materials: expanded functions to meet various surface treatment needs.

Safety and reliability

Pneumatic drive: inherently safe explosion-proof, no electric motor sparks, especially suitable for flammable and explosive environments such as ships and chemical industries.
The work is stable and reliable: ensuring the operation process is stable and controllable.

Industrial-grade durability

All-metal pneumatic core: internally uses quenched high-strength alloy steel gears and bearings, wear-resistant and corrosion-resistant, with longer lifespan.
Fully metal casing: The industrial-grade fully metal casing design makes the equipment adaptable to various complex environments.

Efficient polishing ability

6600 RPM high speed: can quickly remove metal burrs, weld slag, and thick coatings.
High torque output: It is not easy to get stuck even when pressure is applied, making it suitable for high-intensity continuous work.

Easy to use, simple to maintain

Compact structure, easy to operate: convenient to carry, quick to learn.
Maintenance: Routine maintenance is simple.

Economic

Energy consumption economy: low gas consumption per unit power, low usage cost.
High durability: long lifespan, high reliability, reduced failure rate, and lower replacement frequency.

FAQ

Q: What are the common faults of the S150 air grinder and their handling methods?

Fault

Reason

Exclusion method

After air is supplied, the machine does not turn or operates abnormally.

The rotor end face is jammed with the front and rear cover planes of the cylinder.

The blades are too long or worn out or damaged, causing the rotor to jam.

The clearance at both ends of the rotor is not appropriate.

The ball bearings are not clean.

The viscosity of the lubricating oil is too high.

The front and rear covers of the cylinder must be installed correctly and must not be tilted.

Grind the blade length so that it is slightly shorter than the rotor end face, or replace the blade.

Adjust the clearance as specified (0.03-0.05mm on one side).

4. Clean thoroughly and reapply lubricating grease.

5. Choose an alternative lubricant.

Performance has abnormally declined.

Low pipeline pressure or peeling of the inner wall of the pipe increases resistance.

The internal air passages or filters of the machine are blocked by dirt.

The internal parts of the engine are excessively worn.

润滑不良.

Check the tightness of the piping or replace the hoses to reduce pressure loss and ensure sufficient air pressure.

Wash thoroughly.

Need to replace new parts.

It is necessary to lubricate at regular intervals.

Increased gas consumption

1.Air leakage in the vent pipe and at each connection point.

2.The slider does not conform to the specified dimensions or has worn excessively.

3.The clearance between the rotor and the cylinder is large.

4.The end face grinding marks on the front and rear covers of the cylinder are too deep.

1. Inspect and maintain the pipelines and all connection points to eliminate any gas leaks.

2. Need to replace the new slider.

3. Adjust the gap as required.

4. to grind the flat surface

The machine is overheating in some parts.

1.The clearance is not appropriate, and the part surfaces heat up due to friction.

2.The lubrication condition is poor, resulting in dry friction.

3.The assembly quality is not high, and there are binding phenomena between parts.

1.Ensure there is a reasonable assembly clearance between parts.

2.Lubricate on time to maintain good lubrication.

3.Improve assembly techniques, paying attention to the flexibility of rotating parts.

Q: When using an S150 air grinder, what technical safety standards should be noted?

A: 1.It is essential to use resin-bonded grinding wheels, and their diameter must comply with the specified requirements.
2.When working, frequently check if the connections are secure and sealed. The clamping screws that hold the grinding wheel must be tightened.
3.When working, frequently check if the connections are secure and sealed. The clamping screws that hold the grinding wheel must be tightened.
4.When work is finished, first close the pipeline valve, then disassemble the air pipe.

Q: What precautions should be taken when using and maintaining an S150 air grinder?

A: 1.The air pressure should be maintained between 0.50 and 0.63 megapascals. The internal diameter of the tube should meet the requirements. There should be an air filter on the pipeline to prevent contaminants from entering the machine.
2.Lubricate every one or two hours of operation, it is recommended to use mechanical oil N10: standard GB 443-1989. It is suggested to install an oil injector in the pipeline for continuous lubrication, and when maintenance is required, the bearings should be coated with calcium-based grease ZG-2: standard GB 491-1987.
3.The air grinder must not run idle at high air pressure to prevent excessive wear of the components.
4.Do not throw, drop, or bump the machines to prevent damage.
5.After work is completed, lubricating oil should be added and the machine should be run for a few seconds to prevent rusting of the parts.

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