145-AZZS24-040 — 800 W 24V PMSM motor

9.5 Nm continuous at 800 RPM · 29 Nm peak · 145 frame

The 145-AZZS24-040 is an 800 W 24 volt BLDC motor built to turn slowly and pull hard. It holds 9.5 Nm continuously at 800 RPM on 40 Arms, and will produce 29 Nm at 120 Arms — three times its continuous torque, from a frame weighing 18 kg.

The torque constant is what defines this machine: 0.237 Nm per amp, roughly four times that of a fast-wound 145. That is what lets it deliver nine and a half newton-metres from a 24 volt supply and only forty amps. In practice it means the motor can often drive a load directly that would otherwise need a gearbox — an auger, a mixer, a winch drum, a conveyor head. Taking the gearbox out removes the backlash, the oil, the noise and the service interval along with it, and the efficiency lost in reduction gearing comes back as useful output.

Running at 800 RPM on an eight-pole rotor puts the drive at only 53 Hz, which is undemanding for any 24 V controller and makes this an easy motor to pair. The trade is inertia: at 0.001639 kg·m² the rotor is five times heavier than the fast 145 windings, so it resists rapid changes of speed. That is an advantage under shock loading, where the rotor carries the machine through a momentary jam rather than stalling, and a disadvantage on duty that starts and stops many times a minute. Choose it for loads that run steadily and occasionally meet resistance, not for fast indexing.