An air die grinder is a powerful rotary hand tool that uses compressed air to spin a grinding or cutting accessory at very high speeds. Air die grinders are commonly used in automotive repair, metal fabrication, construction, and other industrial applications where heavy material removal, deburring, or finishing is needed.

What is an Air Die Grinder?

An air die grinder is a miniature, handheld rotary tool that uses compressed air to spin a mounted accessory at high speeds, usually between 15,000 and 25,000 RPM. With pneumatic motors that can spin at 25000 RPM, AEROPRO AP17313 air die grinders make quick work of tasks like removing welds, smoothing rough surfaces, and polishing.

At the heart of the tool is a small, high-speed air turbine that converts kinetic energy from compressed air into rotary mechanical energy. The spindle lock allows you to change accessories quickly. Common accessories include grinding stones, cut-off wheels, sanding drums, polishing pads, and engraving points. Filters help keep abrasive dust out of the turbine. An adjustable trigger gives you control over the speed.

Uses for an Air Die Grinder

The uses of an air die grinder are vast and diverse. It is primarily employed for tasks that require grinding, deburring, polishing, or shaping materials such as metal, plastic, or wood. With the appropriate attachments, an air die grinder can also be used for engraving, honing, and even cleaning surfaces. Its versatility makes it an essential tool in industries ranging from automotive repair, furniture factory, metal fabrication to woodworking and maintenance services.

Applications:

Grind and shape metal, such as steel, aluminum, and brass.

Removing rust, paint or corrosion from metal surfaces .

Grinding welds smooth after welding.

Deburring metal parts after machining.

Polishing metal surfaces .

Cutting tile, stone or concrete with abrasive cutoff wheels.

Cutting and shaping auto body sheet metal.

Sand and smooth wood, plastic, and other materials.

How to Use an Air Die Grinder for Best Results

Select the Right Accessory

Air grinders come with a variety of attachments, such as grinding wheels, cutting wheels, sanding pads, and polishing buffs. Each attachment is designed for a specific task, so choose the one that best fits your needs. Here are some of the most common accessories and their uses.

Cutting discs for slicing, slotting, or gouging metals. Use reinforced fiberglass discs.

Grinding stones in 24-60 grits to rapidly remove material. Go with silicon carbide or aluminum oxide.

Abrasive flapwheels for blending and deburring in one step. Opt for zirconia or aluminum oxide grits.  

Bristle discs that won't load up quickly when finishing stainless steel or other gummy metals.

Felt bobs and cotton buffing wheels with polishing compounds for final finishing.

Grinding Techniques

The key to flawless results with an air die grinder is letting the tool do the work through gentle guidance. Avoid pressing too hard or lingering in one spot, which can cause gouges, uneven surfaces, or burns. Here are some tips:

Brace yourself and the workpiece so you have full control over the grinding tool. Be prepared for the torque.

Hold the grinder at a 15-30° angle to the worksurface. Let the edge of the accessory contact the metal.

Use smooth, sweeping motions in the direction of the accessory's rotation. Avoid sudden lateral movements.

Apply even, light pressure and regularly reposition the grinder to distribute wear.

When finished, run the grinder off the workpiece while still spinning to avoid dwell marks.

For cleanup passes, reduce pressure and switch to finer grit accessories.

Setting up the Air Die Grinder

Install an air filter/regulator/lubricator unit close to the air supply.

Adjust regulator to 90 PSI maximum for most die grinders. Use lower pressure for extended tool life.

Fill lubricator with air tool oil to maintain adequate lubrication to the grinder.

Blow out dust from the grinder with compressed air after each use.

Inspect accessories for damage like cracks or loose bonding. Discard worn accessories.  

Choosing the Right Air Die Grinder

Air die grinders come in a range of sizes and power levels. For most general purposes, opt for a die grinder that's compact but packs sufficient power.

Whether you need to grind away rust or weld seams, deburr freshly machined parts, polish metal or sharpen tools, the AEROPRO AP17313 air die grinder has the 25000RPM to make your job easier. Safety trigger. High precision chuck. P6 industrial bearing,long working life. 4 blades brings high speed.

Weighing only 0.7lbs, the AP17313 features a slim, compact body that minimizes hand fatigue during extended use. The ergonomic rubber grip gives you easy control and comfort for precise applications.

Great for high speed grinding, porting smoothing, general polishing and deburring. Used for all kinds of mold, metal products and handicrafts, the manufacturing of circuit board, blank finishing,grinding finishing and so on.

Model:AP17313

Chuck Size:1/4'' and 1/8''

Free Speed:25000RPM

Overall Length:5.9''(151mm)

Air Inlet:1/4''

Air Hose:3/8''

Sug.Air comp:1.5HP

Net Weight: 0.7Lbs(0.32kg)

Avg.Air Consumption:3cfm(85.5L/min)

AEROPRO has quickly risen to become an unrivaled global producer of air-powered devices including air tools, air spray gun, air nailer, airless paint sprayer, and etc.

AEROPRO seeks independent sales agent to represent and market our industry-leading pneumatic tools. We support OEM, ODM, OBM customization, small order quantity is acceptable and samples are available.

Make any cooperation possible. Any services related to the product, inquire with us now! Sales@Aeroprotools.Com