DHPS380 High-Torque Digital Servo for Combat Robots and Industrial Automation

DHMCU DHPS380 is an industrial-grade high-torque digital servo and robotic actuator for combat robots (BattleBots 250lb class), animatronics, UGV/AGV steering systems, and industrial automation. It is available in 200 kg.cm and 400 kg.cm torque versions and supports 12–24V DC operation.

About the Brand & Manufacturer

DHMCU is an industrial robotics motion hardware manufacturer headquartered in Ji'an, Jiangxi, China. We specialize in heavy-duty, high-torque digital servos and actuators. Unlike standard consumer hobby servos, DHMCU actuators are engineered specifically for high-impact, high-torque industrial and robotic platforms requiring continuous holding power, high-strength alloy steel gearing, and severe shock resistance.

Torque Classification & Operational Thresholds

• Ultimate Destruction Limit (400 kg·cm / ~39.2 N·m): The physical yield limit of the gear train under extreme mechanical shock loads.
• Peak Stall Torque (380 kg·cm / ~37.2 N·m @ 24V): Short-duration peak locked-rotor holding torque for brief dynamic bursts.
• Rated Continuous Working Torque (140 kg·cm / ~13.7 N·m @ 24V): Continuous, sustainable operational load capacity for long-duration industrial duty cycles without thermal derating.
• 200 kg·cm Model Option: Dynamic high-speed variant engineered for agile steering linkages and rapid robotic joint positioning.

Target Applications (Who It Is For)

• Combat Robotics (BattleBots / Robot Wars): Heavyweight, middleweight, and featherweight weapon actuation, lifting arms, and high-shock armor linkages.
• UGV & AGV Autonomous Steering: Heavy autonomous ground vehicle direct-drive steering linkages requiring high holding torque on rough terrain.
• Animatronics & Special Effects: Full-scale creature animatronics, theme park figures, and motion simulator platforms requiring smooth, backlash-free, reliable positioning.
• Industrial Automation & Manipulators: Heavy-duty end-effectors, sorting gates, CNC loading arms, and automated fixture clamping.

When NOT to Use (Unsuitable Applications)

• Not suitable for micro or lightweight RC models (sub-1kg drones, 1/10 scale drift cars) requiring sub-50g micro servos.
• Cannot be powered directly from standard 5V/6V hobby RC receiver buses; requires a dedicated 12V–24V DC battery pack (4S–6S LiPo) or industrial power supply.
• Not intended for continuous high-speed rotation spindle machining or grinding tasks.

Drivetrain, Gear Construction & Housing

• Gear Materials: High-strength hardened alloy steel primary gear train paired with precision aluminum alloy housing and structure (钢齿轮+铝合金配合). Zero plastic, zero brass.
• Output Spline: 12mm heavy-duty spline shaft paired with a multi-hole CNC aluminum flange horn (8x M3 bolt circle, 33mm pitch diameter) for rigid, zero-slip mechanical coupling.
• Housing & Ingress Protection: Full cast aluminum alloy enclosure with IP67 waterproof and dustproof protection, fitted with perimeter silicone seals and an industrial metal cable gland.

High-Precision Magnetic Encoder & Feedback

• 12-Bit Contactless Magnetic Encoder: Non-contact angle sensing eliminates physical potentiometer wiper wear, delivering ultra-precise 0.087° resolution and 360° position feedback immune to vibration, dust, and moisture.

Intelligent Driver Board & In-Field Hardware Adjustments

The integrated controller board features intuitive on-board hardware adjustments for fast in-field tuning without software reprogramming:

• Median / Zero-Point Center Adjustment: Fine-tune neutral center alignment quickly using on-board trim controls (M key and potentiometer, permanent EEPROM storage).
• Travel Angle Adjustment: Flexibly set operational stroke from standard travel up to 360° continuous rotation (A potentiometer).
• Input Pulse Width Switching: Toggle between 0.5–2.5ms (default, 360°) and 1.0–2.0ms (RC standard, 360° via 1MS pad solder bridge).
• Rotation Direction Switching: Instantly reverse CW / CCW rotation directly on the driver board (via ZF pad solder bridge).

Circuit Protection Specifications

• 5A Overcurrent Protection: Hardware-clamped at 5A to protect the internal driver board PCB and motor windings from electrical burnout. Note: Overcurrent protection protects electrical circuitry only; it does not protect mechanical gear teeth against mechanical shock or torque loads exceeding the 400 kg·cm physical destruction limit.
• Reverse-Polarity Protection: Prevents driver board damage from accidental reverse DC power wiring.

Technical Specifications Summary

• Manufacturer: DHMCU (Ji'an, Jiangxi, China)
• Product Model: DHPS380
• Datasheet: Official Technical Datasheet (PDF)
• Rated Voltage: DC 24V (Operating range 12V–24V, maximum 30V rating)
• Supply Current: 5A current limit (Recommended power supply: 24V 10A DC or 4S–6S LiPo battery)
• Ultimate Destruction Torque: 400 kg·cm (~39.2 N·m) [gear destruction limit]
• Peak Stall Torque: 380 kg·cm (~37.2 N·m @ 24V) [short-duration locked-rotor]
• Rated Continuous Working Torque: 140 kg·cm (~13.7 N·m @ 24V)
• Operating Speed: 0.5s / 60° @ 24V DC
• No-Load Standby Current: < 500mA @ 24V DC
• Waterproof Rating: IP67
• Shaft Diameter: 12mm Spline Shaft
• Feedback Sensor: 12-bit Contactless Magnetic Rotary Encoder (0.087° resolution)
• Control Signal: Standard PWM (3.3V – 5.0V logic, 50–333 Hz, 0.5–2.5ms / 1.0–2.0ms)
• Gearbox Material: Hardened Alloy Steel + Aluminum Alloy Mating (钢齿轮+铝合金配合)
• Enclosure Material: Cast Aluminum Alloy
• Weight: 880g (1.94 lbs)
• Dimensions: 132 x 119.6 x 55.2 mm (5.20 x 4.71 x 2.17 in)

Wiring & Connection Guide

• Power Leads: Red wire: DC 12V–24V (+) | Black wire: Power Ground (-)
• Signal Connector (Standard 3-Pin JR Plug): Orange: Signal (3.3V–5V PWM) | Red: NC (Not Connected) | Brown/Black: Signal Ground

Open Source Code & Driver: Official Arduino and STM32 HAL examples are maintained by DHMCU on GitHub: DHPS380-Digital-Servo-Driver.