Product Description:

The SP2566-5200 is a two-phase hybrid stepping motor produced by Sanyo Denki within the F SANMOTION Stepping Motors series. It is intended for positioning duties in automated pick-and-place heads, laboratory instruments, and small indexing tables where open-loop control is accepted and repeatable displacement is required. The motor converts discrete pulse commands from a drive into proportional angular motion, allowing machine builders to synchronize linear or rotary axes without the complexity of feedback devices.

The magnetic circuit provides a basic step angle of 1.8°, while the motor supplies a holding torque of 1.7 N·m for maintaining its position at rest. Each winding draws 3 A per phase. To set that current, the drive must overcome a phase resistance of 1 Ω per phase and a phase inductance of 4.4 mH per phase. These impedance values influence current rise time, so the microstepping bandwidth should be adjusted accordingly. Static angle error remains within ±0.054°, ensuring repeatable positioning when loads stay within the allowable radial limit of 23 N and thrust limit of 15 N. The low rotor inertia of 0.36 × 10⁻⁴ kg·m² supports rapid acceleration without large current peaks, and the 6.35 mm shaft diameter accommodates commonly available couplings.

The body has a length of 102 mm, and its pilot diameter is 38.1 ± 0.025 mm for concentric mounting. The motor weighs 1.2 kg, which limits the additional mass placed on gantry or stage structures. A housing sealed to IP65 blocks dust and directed water jets, allowing installation near coolant spray or airborne particles. Class F insulation supports the motor’s thermal requirements, and the coil set withstands up to 1500 VAC during high-potential testing. The 155 °C thermal limit should be observed, and adequate airflow may be needed when demanding duty cycles cause sustained heating. Proper mounting alignment also helps prevent excessive radial or axial loading on the shaft and bearings during operation.