Product Description:

The PMA24K-1050B-02 is a brushless servomotor produced by Pacific Scientific and supplied within the PMA Brushless Motors series. Intended for precision motion axes in automated packaging, semiconductor handling, and test equipment, the motor provides bidirectional torque under digital drive control. Its brushless construction lowers maintenance demands by eliminating brushes and supports clean operation in automated equipment, while the series format allows straightforward pairing with matching drives and feedback devices in distributed control architectures.

At the core of its performance envelope is a continuous stall torque of 2.6 Nm; this is the torque the motor can supply continuously without overheating, enabling stable holding or low-speed feed duties in positioning applications. When rapid acceleration is required, the electromagnetic circuit delivers a peak torque of 9.6 Nm, giving the axis reserve force for overcoming inertial loads or momentary jams during short bursts of demand. The housing has a square frame of 70 mm on each side, which sets the mounting bolt pattern and supports spacing calculations on multi-motor plates. Dynamic response is influenced by the rotor inertia of 0.072 kgm² × 10⁻³, and lower inertia shortens settle time after velocity changes. Because the unit is supplied with no brake, any power-off holding requirement must be satisfied by an external lock or by drive current.

The mechanical package weighs 3.5 kg, which helps limit moving mass on gantry axes where cycle time and acceleration are important. Torque is transmitted through a closed keyway shaft with a fitted key, giving a positive drive interface that resists slip under repeated reversals. Internally, the magnetic stack length is coded as 4, a configuration that balances extra copper volume against the frame constraint to raise continuous torque without altering the footprint. That shaft style is useful where repeated start-stop motion and reversing loads can loosen friction-only couplings.