SJS® Super Joint System is a mechanical clutch system that helps prevent motor and gear damage in grinders if the wheel is forced to a stop. The drive shaft from the armature to the drive gear is spring-loaded during normal grinding load. If binding occurs or the wheel is forced to stop, the spring is compressed allowing the drive shaft to slip. The gear tension is minimized while the armature continues to rotate, which helps prevent motor burn-out. SJS® is a mechanical clutch system, not elecronic, so the grinder does not require a re-start if the wheel binds. [Learn More]
Makita’s 6” SJS Cut-Off/Angle Grinder combines 13 AMP power with comfort and motor-protection features for longer-lasting industrial performance. The 9566PC is engineered with Makita’s innovative SJS™ mechanical clutch system to protect the gears for longer tool life.
The 9566PC is powered by a 13 AMP motor that delivers 9,000 RPM, with soft start for smooth start-ups. Labyrinth construction protects the motor with a complex set of channels, prohibiting dust and contamination. In addition, the protective zig-zag varnish seals the motor and bearings from dust and debris by creating a barrier under rotation. (includes both cutting/grinding wheels & guards)
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