GTR 550 Professional Drywall Sander

“UltraFlexible Head” glides effortlessly along ceilings and walls while reducing surface damage
Ceiling suction functionality ensures high comfort and a lighter tool feel
Ergonomic L-shaped handle reduces stretching effort during sanding
Innovative quick-change segment bar design provides flexible length adjustment
Constant speed maintains high material removal rate and fast surface finishing
Powerful, durable motor delivers high sanding speeds under demanding conditions and long motor life
Quick-release segment brush allows sanding right up to the wall, reducing prep time and the need for manual sanding
Optimized airflow enables dust-free sanding* and extended tool life (*when used with Bosch GAS 35L AFC)

Technical data
Additional data
Rated input power: 550 W
Sanding disc diameter: 215 mm
Weight: 4.8 kg
No-load speed: 340 – 910 rpm
Sanding sheet diameter: 225 mm
Backing pad hardness: Soft
Sanding disc type: One pad + intermediate pad

Noise/vibration information
Sound pressure level: 84 dB(A)
Sound power level: 95 dB(A)
Uncertainty K: 3 dB

GTR 550 Professional: Additional information
Product highlights
Designed for efficient drywall sanding, the GTR 550 Professional is a reliable partner for finishing professionals tackling demanding tasks. Its “UltraFlexible Head” ensures smooth, effortless movement across ceilings and walls with significantly reduced risk of surface damage. The ceiling suction feature partially supports the tool’s weight against the ceiling, making overhead sanding more comfortable. With its ergonomic L-shaped handle, this drywall sander provides additional comfort and maximum convenience in any working position.

Equipment and application
Ideal for painters, drywall installers, and interior finishing professionals, it enables prolonged sanding work on walls and ceilings, as well as preparation of surfaces for filling or plaster application.