FEETECH SM45BL-C002 Servo Motor
FEETECH SM45BL-C002 Servo Motor
The SM-45BL-C002 is a premium 24V 45kg.cm Modbus-RTU serial control BUS servo driven by a high-efficiency brushless motor and a 353:1 steel gear ratio. Designed with a rugged aluminum outer case, dual ball bearings, and a 25T (OD5.96mm) horn gear spline, this intelligent servo provides a peak stall torque of 45kg.cm, a rated torque of 15kg.cm, and a no-load speed of 70RPM (0.142sec/60°) at 24V. It has a terminal resistance of 7Ω, a KM constant of 19kg.cm/A, a running current of 160mA at no load, and a stall current of 2300mA. Communicating via the standard Modbus-RTU protocol over an RS485 bus, it supports an ID range from 0 to 253 and data rates from 38400bps to 1Mbps. The servo integrates an advanced 12-bit magnetic encoder for precise 360° clockwise positioning (360°/4096 resolution) and delivers real-time telemetry feedback covering position, speed, voltage, load, and temperature across an operating range of -20℃ to 80℃.
Common use cases: Industrial robot arm joints requiring standard Modbus-RTU protocol compatibility over RS485 at 24V, PLC-integrated automation systems, collaborative robot (cobot) joints, precision end-effectors, and applications demanding 45kg.cm torque with 12-bit magnetic encoder accuracy and Modbus-RTU interoperability.
| PRODUCT PARAMETERS | |
| Model | SM-45BL-C002 |
| Product Name | 24V 45kg.cm Modbus-RTU RS485 Brushless Servo |
| Storage Temperature Range | -30℃~80℃ |
| Operating Temperature Range | -20℃~80℃ |
| Size | A：46.5mm B：28.5mm C：34mm |
| Weight | 100g |
| Gear type | Steel Gear (Gear Ratio 353:1) |
| Limit angle | No limit |
| Bearing | 2 Ball bearings |
| Horn gear spline | 25T (OD5.96mm) |
| Horn type | Aluminum |
| Case | Aluminum |
| Connector wire | 150mm±5mm |
| Motor | Brushless Motor |
| Operating Voltage Range | 24V |
| No load speed | 0.142sec/60° (70RPM)@24V |
| Running current (at no load) | 160mA@24V |
| Peak stall torque | 45kg.cm@24V |
| Rated torque | ≤15kg.cm@24V |
| Rated current | ≤900mA@24V |
| Stall current | 2300mA@24V |
| KM constant | 19kg.cm/A |
| Terminal resistance | 7 Ω |
| Command signal | RS485 Bus Packet Communication |
| Protocol Type | Modbus-RTU |
| ID range | 0–253 |
| Communication Speed | 38400bps ~ 1Mbps |
| Running degree | 360° (0~4096 steps) |
| Rotating direction | Clockwise (CW) |
| Position Sensor Resolution | 0.088°/pulse (12-bit magnetic encoder, 360°/4096) |
| Feedback | Position, Speed, Input Voltage, Load, Temperature |