Angle Grinder Unior U617730 — 125 mm Disc Pneumatic

The Unior U617730 pneumatic angle grinder accepts a 125 mm cutting or grinding disc and is designed for air-powered work where electric tools are unsuitable. Its compact angled gearbox and pneumatic motor make it appropriate for continuous operation in workshop, automotive and construction environments. The tool features a trigger control that allows responsive speed modulation for controlled cutting, grinding and surface preparation tasks.

Advantages

The pneumatic design eliminates the need for a power cord and reduces the risk of sparks near flammable materials. A compact angled gearbox improves access in confined spaces and on complex workpieces. The tool provides steady torque and long duty capability under compressed air supply, while the trigger control delivers intuitive operation for both cutting and finishing. Constructed for workshop durability, the grinder is suitable for repetitive professional use.

Suitable for

• Cutting metal sheets, pipes and profiles with a 125 mm disc
• Grinding welds and removing surface defects on metal
• Shaping and smoothing stone or masonry surfaces
• Automotive bodywork and fabrication tasks in repair shops
• On-site construction tasks where electric tools are impractical

Key specifications

• Disc diameter: 125 mm compatible
• Drive: pneumatic motor for compressed air operation
• Gearbox orientation: angled for improved access
• Control type: trigger for variable operation
• Application: cutting, grinding and surface preparation on metal, stone and masonry

How to use

Connect the grinder to a clean, regulated compressed air supply of appropriate pressure and flow according to your workshop standards, and secure the chosen 125 mm disc according to the disc and tool manufacturer's mounting instructions. Hold the tool with firm two-handed support where possible, position the guard between the operator and the wheel, and apply steady, moderate pressure for cutting or grinding. Release the trigger to stop the tool and allow the disc to come to a complete stop before setting the tool down. Follow general safety practices including eye, hearing and hand protection when operating pneumatic grinders.

Usage recommendations

Use discs rated for the tool's maximum speed and intended material. Maintain clean, dry air supply and use an inline filter/regulator/lubricator to extend motor life. Inspect discs and tooling before each use and replace worn or damaged discs. For precision work, select appropriate disc grit and type; for heavy removal, use coarse discs and operate at steady, controlled feed rates.