Posted September 14, 2021

AC brushless grinders

Metabo HPT adds 4.5- and 5-inch 12-amp AC brushless grinders.

The 4.5-inch paddle switch disc grinder with lock-off switch (model G12BYEQ) and the 5-inch paddle switch disc grinder with lock-off switch (model G13BYEQ), with their AC brushless motors, permit the use of extra-long extension cords with reduced power loss, eliminating maintenance of armatures or carbon brushes, and deliver superior performance when powered by a generator due to internal inverter circuits for ultimate job site convenience. The AC brushless motor results in the ultra-slim grip circumference of these grinders, reducing fatigue and improving control during continuous-use applications.

Metabo HPT SC brushless grinders
The new Metabo HPT grinders feature AC brushless motors that permit the use of extra-long extension cords with reduced power loss. The motors also eliminate armature or carbon brush maintenance  and deliver superior performance when powered by a generator. The AC brushless motor results in the ultra-slim grinder grip circumference, reducing fatigue and improving control during continuous-use applications.

Metabo HPT’s AC Brushless motors run more efficiently, leading to longer run time, increased power and extended durability with essentially no maintenance. Eliminating the need for carbon brushes means freedom from issues with the motor armature burning out and experiencing layer shorts or commutator wear in severe environments. Also, brush wear and resulting armature damage from lack of maintenance is the most common service issue. This is eliminated by the brushless motor resulting in more uninterrupted run times.

Metabo HPT’s brushless tools integrate electronic controllers that compensate for reduced power loss due to voltage drop. The G12BYEQ and G13BYEQ AC brushless grinders are also designed for compatibility with a generator thanks to Metabo HPT’s compact and highly efficient inverter circuit. This circuit cleans up and modulates the electricity before it is used in the motor, providing steady, stable operation and greatly reducing the risk of damage to the internal circuits. This is ideal for mobile contractors without a permanent power source on the jobsite.

These two new grinders offer 12 amp high torque motors with 1,600 max watts out to power through the toughest cutting and grinding applications. The no-load speed on both models is 10,000 rpm. A soft-start function reduces the load felt by the user at start-up. The paddle switch cannot be activated unless the lock-off lever is pushed down for added safety.

They accept 4.5- (G12BYEQ) and 5-inch (G13BYEQ) wheel accessories to tackle a multitude of applications. An easy-to-manipulate spindle lock located at the front of the grinders make it simple to change out the accessories as needed. The included side handles can be moved to either side of the grinders for added  control and maneuverability. Both weigh just 4.6 pounds and are lightweight for easy operation.

These grinders come with electric brakes, kick-back reduction, fine mesh dust filters and zero voltage restart protection. The electronic brakes stop the motors when the paddle is released. Kick-back reduction quickly shuts off the power in the event of a bound wheel to extend the life of the gears and protect the user from potential harm. The fine mesh dust filters prevent dust particles from entering the motor housing. Lastly, zero voltage restart protection prevents the grinder from restarting if power is temporarily cut during operation.

Covered by Metabo HPT’s 1-Year Warranty, the G12BYEQ & G13BYEQ 4-1/2” & 5” AC Brushless Disc Grinders are unique in the marketplace, and are designed to last while stone polishing, surface finishing, removing rust & paint, light grinding, finishing concrete and performing applications using wire cup or wire wheel attachments. Both come with filter sets, side handles, spanner wrenches and 4mm hex bar wrenches. Expect to see more AC Brushless motor tools from Metabo HPT.