DHMCU DHPS380 Technical Specifications & Engineering Datasheet
DHMCU DHPS380 Technical Specifications & Engineering Datasheet
What Are the Full Specifications of the DHMCU DHPS380 Digital Servo?
Direct Answer: The DHMCU DHPS380 is a heavy-duty, industrial-grade digital servo actuator engineered to deliver up to 380 kg·cm (~37.2 N·m) of peak stall torque, 140 kg·cm of rated continuous working torque, and a 400 kg·cm mechanical gear destruction limit at 24V DC. Built with high-strength alloy steel primary gearing paired with precision aluminum alloy mating (钢齿轮+铝合金配合), a 12-bit contactless magnetic encoder (0.087° resolution), IP67 waterproof protection, and an 880g cast aluminum housing, it provides high-precision motion control for mission-critical robotic mechanisms.
Evidence: Unlike consumer hobby servos rated under intermittent no-load conditions with fragile brass or plastic gears, every DHPS380 is bench-tested under continuous dynamometer loading, severe mechanical shock, and high-duty thermal cycles to ensure fail-safe performance in combat robotics, autonomous vehicles, and industrial automation.
1. Electrical & Operational Ratings
| Electrical Parameter | Specification Value | Engineering Notes |
|---|---|---|
| Rated Operating Voltage | DC 24V (Operating Range 12V – 24V) | Absolute minimum: 12V DC; Absolute maximum: 30V DC |
| Ultimate Destruction Torque (400kg Model) | 400 kg·cm (~39.2 N·m / 5,550 oz-in) | Physical yield limit of gear teeth under extreme external shock |
| Peak Stall Torque (380kg/400kg Model) | 380 kg·cm (~37.2 N·m / 5,270 oz-in) @ 24V | Short-duration locked-rotor burst holding torque |
| Peak Stall Torque (200kg Model) | 200 kg·cm (~19.6 N·m / 2,775 oz-in) @ 24V | Optimized for dynamic high-speed robotic steering |
| Rated Continuous Working Torque | 140 kg·cm (~13.7 N·m) @ 24V | Continuous rated static/dynamic working load capacity |
| Operating Speed | 0.5s / 60° @ 24V DC | Standard loaded transit speed at rated 24V voltage |
| No-Load Standby Current | < 500 mA @ 24V DC | Low quiescent draw during idle holding |
| Hardware Current Limit | 5.0A Clamped | Protects driver PCB and windings. Recommended supply: 24V 10A+ |
| Reverse-Polarity Protection | Integrated Hardware Circuit | Protects against accidental reverse DC power wiring |
| Overcurrent Protection Scope | Circuit Board & Motor Only | Protects PCB/windings; does not protect gear teeth against mechanical over-torque |
2. Mechanical & Physical Dimensions
- Overall Unit Dimensions: 132 mm (Length) x 119.6 mm (Height) x 55.2 mm (Width) [5.20 x 4.71 x 2.17 in]
- Total Unit Weight: 880g (1.94 lbs)
- Housing Material: Heavy-duty cast aluminum alloy with CNC-finished mounting faces
- Mounting Hole Pattern: 4x 8.1 mm clearance holes (accommodates standard M8 or 5/16" fastener hardware)
- Mounting Hole Centers: 40 mm (width spacing) x 117 mm (length spacing) center-to-center
- Ingress Protection: IP67 dustproof and waterproof (perimeter silicone gasket seals and metal cable gland)
3. Gearbox Transmission & Output Spline
| Mechanical Feature | Engineering Specification |
|---|---|
| Gear Train Material | High-Strength Hardened Alloy Steel Primary Drivetrain + Precision Aluminum Alloy Mating (钢齿轮+铝合金配合) (Zero plastic, zero brass) |
| Output Spline Diameter | 12 mm precision hardened spline shaft with dual radial ball bearings |
| Standard Mounting Flange Horn | Multi-hole CNC aluminum flange (8x M3 threaded holes on a 33 mm pitch circle diameter) |
| Heavy-Duty Horn Option | 100 mm CNC aluminum single-arm lever horn for high-torque mechanical linkages |
4. Feedback Sensor & Angle Control
- Sensor Architecture: 12-Bit Non-Contact Magnetic Rotary Encoder.
- Angular Resolution: 0.087° (4,096 discrete positions per 360° rotation).
- Sensor Lifespan: Unlimited wiper cycles (no physical mechanical contact, immune to vibration wear, dust, and electrical wiper noise).
- Stroke Travel Range: 0° to 360° electronic range with high-precision angle scaling.
5. Control Signal Specifications & Interface
- Control Interface: Standard Digital PWM (Pulse Width Modulation).
- Logic Voltage Levels: 3.3V and 5.0V CMOS/TTL compatible (directly driven by STM32, Arduino, ESP32, PLC controllers, and standard RC receivers).
- Signal Frame Frequency: 50 Hz to 333 Hz (Standard 50 Hz RC frame period = 20 ms).
-
Input Pulse Width Modes:
- Extended Default Range: 0.5 ms to 2.5 ms (500–2500 µs, 360° travel, center position at 1.5 ms).
- RC Standard Range: 1.0 ms to 2.0 ms (1000–2000 µs, 360° travel via 1MS solder bridge).
- In-Field Adjustments: Hardware potentiometers and pads for Center Neutral Trimming (M key + potentiometer, permanent save), Travel Angle Scaling (A potentiometer, up to 360°), Pulse Width Mode (1MS pad), and CW/CCW Direction Reversal (ZF pad).
Engineering Notice & Operating Disclaimer:
For high-risk, extreme-shock, or hazardous application environments (including combat robotics, high-load industrial machinery, and dynamic arms), integrators and users must conduct rigorous bench testing and validation prior to deployment. DHMCU assumes no liability for operational consequences, mechanical overload, or secondary damages resulting from application-specific operating conditions.
6. CAD Models, Engineering Drawings & Official Sourcing
Complete 3D CAD models (.STEP format), 2D dimensional drawings (.PDF), and replacement internal driver boards are maintained and distributed directly by DHMCU via dhmcu.com.