Bosch GEX 40-150 PROFESSIONAL Disc sander 12000 RPM 24000 OPM Black, Blue, Grey, Red 400 W

The Bosch GEX 40-150 PROFESSIONAL is a compact disc sander designed for professional sanding tasks. Equipped with a 400 W motor, it delivers up to 12,000 rpm and an oscillation rate of 24,000 OPM, enabling even material removal and reduced swirl marks. The tool’s compact dimensions (197 mm width, 409 mm depth) and 2.4 kg weight provide balanced handling during extended operation. The GEX 40-150 is suitable for work on wood, painted surfaces, and other common materials found in workshop and site environments.

Advantages

The disc sander offers high rotational speed combined with orbital movement to improve surface finish and increase sanding productivity. Its compact form factor and relatively low weight make it easier to control in tighter spaces and during overhead or angled work. Multiple colour variants are available, though colour does not affect performance; the design follows Bosch Professional standards for durability and serviceability.

Suitable for

• Smoothing and leveling wooden panels and furniture parts
• Removing old paint and preparing surfaces for repainting
• Shaping and finishing composite and secondary materials
• Intermediate sanding between coats of lacquer or varnish

Key specifications

• Motor power: 400 W
• No-load speed: up to 12,000 rpm
• Oscillation rate: 24,000 orbits per minute
• Weight: 2.4 kg
• Compact dimensions: approx. 197 mm (width) x 409 mm (depth)
• Disc sanding interface: 150 mm diameter

How to use

Fit the appropriate 150 mm sanding disc to the backing pad and secure it according to the tool instructions. Switch the sander on and allow it to reach operating speed before contacting the workpiece. Use light, even pressure and move the tool steadily across the surface to avoid gouging. For best results on painted surfaces or varnish, perform several passes with progressively finer grit discs. Always disconnect the tool from power when changing accessories or performing maintenance.

Recommendations

Use dust extraction or a vacuum adapter where possible to maintain a clean work area and prolong sanding disc life. Select grit sizes appropriate to the task: coarse grits for rapid material removal, medium grits for shaping, and fine grits for finishing. Wear eye, hearing and respiratory protection when sanding, and follow manufacturer guidelines for safe operation and maintenance.