The TPP23 series is manufactured by Electrocraft, and is a powerful and accurate TorquePower™ stepper motor with Nema 23 in 1.8°. It has a holding torque of up to 240 oz-in or 169 Ncm, which has a speed of up to 90 RPS. It also has a length of 3.1 inches or 7.9 cm, which has a width of 2.2 inches or 5.6 cm.