Synchronous torque motor CWFL05020-04230NW48-S000

three-phase48 Vpermanent magnet

Overview
The CWFL05020-04230NW48-S000 is a φ50 mm frameless torque motor kit delivering 0.42 N·m rated torque and 1.26 N·m peak torque at 3000 RPM on 48 VDC. Its 10-pole 3-phase PMSM topology with sinusoidal back-EMF provides high torque density in a compact direct-drive package, suited for collaborative robot wrists, rotary tables and gimbal actuators.

Key Highlights

• φ50 mm stator OD for mid-range compact joint applications
• 0.42 N·m rated / 1.26 N·m peak torque at 3000 RPM on 48 VDC
• 10-pole 3-phase PMSM with sinusoidal back-EMF for FOC servo control
• Class F insulation (155 °C); optional Hall and temperature sensors
• Custom stator stack, bore ID and winding — no MOQ

Electrical Specifications (48 VDC)
Model — CWFL05020-04230NW48-S000
Rated Voltage — 48 VDC
Rated Current — 4.1 A
Peak Current (Instantaneous) — 12.2 A
Rated Output Power — 132 W
Rated Speed — 3000 RPM
Rated Torque — 0.42 N·m
Peak Torque (Instantaneous) — 1.26 N·m
Back-EMF Constant (Ke) — 7.2 Vrms/krpm
Torque Constant (Kt) — 0.1036 N·m/A
Rotor Inertia — 6.25 × 10⁻⁶ kg·m²
Poles — 10
Insulation Class — F (155 °C)
Weight — 0.24 kg
Operating Environment — −20 °C to +40 °C; Humidity ≤ 90% RH

Dimensional Parameters
Ls (Stator Stack Length) — 19.6 mm
Lr (Rotor Length) — 22.6 mm
ØD (Stator OD) — 50 mm
Ød (Bore ID, H7) — 16.8 mm
ØA min — 29.4 mm
ØB max — 46.6 mm
ØC max (both ends) — 49 mm
E max — 5.4 mm
F max — 9.4 mm

Wiring & Sensor Options
Power Leads — 3 wires (U/V/W), L = 200 mm, TEFLON insulation; U — Red, V — White, W — Black
Hall Sensor (optional) — 5 wires: Vcc, GND, HA (Green), HB (Blue), HC (White) — L = 200 mm, TEFLON
Temperature Sensor (optional) — 2 wires: + (Orange), − (Yellow) — L = 200 mm, TEFLON
Bearing — Not included — host structure provides bearing

Available Voltage Configurations
12 VDC — model CWFL05020-04230NW12-S000 (winding parameters not listed)
24 VDC — model CWFL05020-04230NW24-S000 (winding parameters not listed)
48 VDC — model CWFL05020-04230NW48-S000: 4.1 A rated, 12.2 A peak, Ke = 7.2 Vrms/krpm, Kt = 0.1036 N·m/A
Custom — stack thickness, bore ID, winding and sensor type available as configurable options

Illustrations
Dimensional drawing and torque-speed characteristic plots are provided for mechanical integration and performance reference.

Technical specifications

• Series / Model family — CWFL 50mm series
• Rated Voltage — 48 VDC (also available in 12 VDC and 24 VDC windings)
• Rated Torque — 0.42 N·m
• Peak Torque — 1.26 N·m
• Rated Speed — 3000 RPM
• Rated Power — 132 W
• Rated Current — 4.1 A; Peak Current — 12.2 A
• Poles — 10 (10-pole 3-phase PMSM)
• Back-EMF Constant (Ke) — 7.2 Vrms/krpm
• Torque Constant (Kt) — 0.1036 N·m/A
• Rotor Inertia — 6.25 × 10⁻⁶ kg·m²
• Stator OD — 50 mm; Bore ID — 16.8 mm (H7)
• Stator Stack Length (Ls) — 19.6 mm; Rotor Length (Lr) — 22.6 mm
• Insulation Class — F (155 °C)
• Weight — 0.24 kg
• Operating Range — −20 °C to +40 °C; Humidity ≤ 90% RH
• Wiring — 3-phase power leads U/V/W; optional Hall and temperature sensors