FEETECH HL-3915-C001 Servo Motor
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FEETECH HL-3915-C001 Servo Motor
The HL-3915-C001 is a high-performance, 12V 14kg.cm constant-torque dual-axis TTL bus servo engineered for demanding robotics and precision industrial automation. Enclosed in a rugged aluminum alloy case, it integrates a premium coreless motor with a heavy-duty metal gearbox and Feetech’s proprietary TTL control board. Delivering a powerful stall torque of 14.2 kg.cm, this servo supports multi-turn continuous operation, one-key midpoint calibration, and programmable acceleration with smooth start/stop functionality. With comprehensive real-time feedback—including position, speed, voltage, current, temperature, and load parameters—it features advanced built-in overload and over-current protection. It is the ideal smart driving solution for collaborative robots, industrial equipment, and high-torque motion control applications.
| Parameter | Value / Description |
|---|---|
| Model | HL-3915-C001 |
| Product Name | 12V 14kg double shaft constant force TTL serial bus servo |
| Storage Temperature Range | -30℃ ~ 80℃ |
| Operating Temperature Range | -10℃ ~ 60℃ |
| Temperature Range | 25℃ ± 5℃ |
| Humidity Range | 65% ± 10% |
| Size | A: 20mm B: 34mm C: 23mm |
| Weight | 35.8 ± 2g |
| Gear type | Metal Gear |
| Limit angle | No limit |
| Bearing | Ball bearings |
| Horn gear spline | 25T / OD4.95mm |
| Gear Ratio | 1/320 |
| The rocker phantom | 0° |
| Case | Aluminium |
| Connector wire | 15CM / 20CM |
| Motor | Coreless Motor |
| Rated Input Voltage | 4V - 14V |
| No load speed | 0.1sec / 60° (100RPM) @ 12V |
| Runnig current (at no load) | 260mA @ 12V |
| Peak stall torque | 14.2kg.cm @ 12V |
| Stall current | 1.5A @ 12V |
| Rated Load | 4.5kg. cm @ 12V |
| Rated current | 500mA @ 12V |
| KT Constant | 9.3kg. cm/A |
| Operating Modes | Mode 0: Angle servo mode (default mode, absolute position controllable from 0-360 degrees) Mode 1: Motor constant speed mode (motor constant speed mode, maintains speed without deceleration as the load increases) Mode 2: Motor constant current mode (motor constant current mode, maintains current without decreasing with increasing load) can achieve absolute position |
| Multi-Loop Mode | Absolute precision 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 ~ 4095) |
| Resolution [deg/pulse] | 0.088° (360° / 4096) |
| Rotating Direction | Clockwise (0 → 4095) |
| Feedback | Load, Position, Speed, Input Voltage, Current, Temperature |