FEETECH HL-3625 Servo Motor
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FEETECH HL-3625 Servo Motor
The Feetech HL-3625-C001 is a high-performance 7.4V 25kg.cm double shaft constant force serial bus servo engineered for robotics, industrial equipment, and heavy-torque drive applications. Featuring a lightweight plastic case, a reliable core motor, and a rugged metal gearbox, it integrates Feetech’s proprietary TTL control board. Delivering a powerful 25kg.cm stall torque, this intelligent servo supports multi-turn continuous operation, one-key midpoint calibration, and programmable acceleration for smooth slow-start and slow-stop motion. Equipped with comprehensive real-time telemetry feedback—including position, speed, voltage, current, temperature, and load—the HL-3625-C001 enables advanced overload and over-current protection, providing stable, constant force output for complex multi-joint mechanisms.
| PRODUCT PARAMETERS | |
| Model | HL-3625-C001 |
| Product Name | 7.4V 25kg.cm Double Shaft Constant Force Serial Bus Servo |
| Storage Temperature Range | -30°C ~ 80°C |
| Operating Temperature Range | -10°C ~ 60°C |
| Temperature Range | 25°C ± 5°C |
| Humidity Range | 65% ± 10% |
| Size | A: 45.2mm B: 24.7mm C: 35mm |
| Weight | 55 ± 1g |
| Gear type | Copper |
| Limit angle | No limit |
| Bearing | Ball bearings |
| Horn gear spline | 25T / OD5.9mm |
| Gear Ratio | 1/345 |
| The rocker phantom | 0° |
| Case | PA66 + GF |
| Connector wire | 15CM |
| Motor | Core Motor |
| Rated Input Voltage | 5V - 8.4V |
| No load speed | 0.192sec/60° (52RPM) @ 7.4V |
| Running current (at no load) | 180mA @ 7.4V |
| Peak stall torque | 25kg.cm @ 7.4V |
| Stall current | 3.0A @ 7.4V |
| Rated Load | 6.2kg.cm @ 7.4V |
| Rated current | 750mA @ 7.4V |
| KT Constant | 8.3kg.cm/A |
| Terminal resistance | 2.5 Ω |
| Operating Modes | Mode 0: Angle servo mode (default mode, absolute position controllable from 0-360 degrees) Mode 1: Motor constant speed mode (maintains speed without deceleration as the load increases) Mode 2: Motor constant current mode (maintains current without decreasing with increasing load) can achieve absolute position |
| Multi-Loop Mode | Control of positive and negative 7 turns at the highest accuracy, but the number of power failure turns is not saved (the resolution can be expanded, and the number of turns can be doubled) |
| Constant force output | Set the output torque value, the servo can maintain this torque (input the target torque value corresponding to address 44, the servo can maintain this torque) |
| Command signal | Digital Packet |
| Protocol Type | Half Duplex Asynchronous Serial Communication |
| ID range | 0 - 253 |
| Communication Speed | 38400bps ~ 1 Mbps |
| Control Algorithm | PID |
| Neutral Position | 180° (2048) |
| Running degree | 360° (when 0 ~ 4096) |
| Resolution [deg/pulse] | 0.088° (360° / 4096) |
| Rotating Direction | Clockwise (0 → 4096) |
| Feedback | Load, Position, Speed, Input Voltage, Current, Temperature |