The Assfalg AQ series provides intelligent variable-speed control for electric handpiece grinders used in industrial deburring, edge machining, and metal finishing applications. Two models serve different production scales: the AQ 1 for single-operator workstations and the AQ 3 for multi-spindle setups requiring up to three independently controlled handpieces.

How does the independent speed memory work on the AQ 3?

Each of the three motor connections on the AQ 3 stores its own maximum speed setting independently, allowing an operator to switch between handpieces fitted with different grinding tools — each running at its optimal RPM — without reprogramming. The stepless speed regulation covers the full range up to 100,000 RPM, with the LED display providing clear speed readout for the active channel. Intelligent connection monitoring detects handpiece attachment and removal, protecting the controller and motor from open-circuit operation.

What distinguishes the AQ 1 from the AQ 3 for production planning?

The AQ 1 (8 Ncm torque) is optimized for single-handpiece workstations where one operator uses one grinder at a time. The AQ 3 (11 Ncm torque) supports up to three handpieces with higher torque output, enabling a single control unit to serve a multi-step deburring station where different grit sizes, brush types, or tool geometries are required in sequence. Both units feature right and left rotation capability and accept an optional foot pedal for hands-free speed control during operation.