Servomotor servo-gearmotor HPJM-RE80-110-PRO-XX

harmoniccoaxialhollow-shaft

Introduction
The Robot Joint Motor PRO Series (HPJM‑RExx‑PRO‑XX) integrates a harmonic drive, frameless torque motor (power unit), encoder(s), optional brake and embedded drive to provide compact, high‑precision actuation for robot wrists, heads and humanoid joints. Typical supply voltage range is DC24V–DC48V. Applications include precision robotics, semiconductor, photovoltaic, medical devices, 3C and optical equipment.

Core Components

• Power Unit (Frameless Torque Motor): High torque density and compact footprint for dynamic load scenarios.
• Harmonic Drive: Speed reduction and torque multiplication with near‑zero backlash (backlash controlled within 20 arcsec).
• Dual Encoders (motor-side and output-side): Enable full closed‑loop control with repeatability ±10 arcsec.
• Temperature Sensor: Real‑time monitoring of load and environment.
• Embedded Drive Unit: Supports EtherCAT and CANopen; allows dynamic PID tuning.

Features

• Precision control & minimal backlash: Repeatable positioning ±10 arcsec; absolute positioning ±30 arcsec — suitable for precision motion control (e.g. surgical robots, collaborative arms).
• 3D conjugate dual‑arc tooth profile: Optimizes gear tooth geometry to reduce vibration and noise, improve stiffness and service life.
• Highly integrated, compact and lightweight: Combined harmonic drive and frameless motor for space‑constrained joints; use of high‑strength aluminum alloys and carbon fiber where applicable.
• High transmission efficiency: >80% efficiency to limit energy loss under dynamic loads.
• Safety & reliability: Optional torque sensor for collision detection and drag‑teaching; designed precision life >10,000 hours in industrial conditions.
• Intelligent integration: Embedded controller with multi‑protocol compatibility and modular interfaces for fast integration and maintenance.

Specification (table)
Joint Model (red mark indicates module outer diameter) | Gear Ratio | Rated Torque @2000RPM (N·m) | Max Allowable Torque at Average Load (N·m) | Impact Torque (N·m) | Rated Speed (with 1/2 Rated Torque) (RPM) | Peak Speed (RPM) | Rated Power (W) | Supply Voltage (V) | Rated Current (A) | Max Continuous Current (A) | Encoder Resolution (bit) | Torque Constant (N·m/A) | Gear Backlash (arcsec) | Communication Bus | Hollow Shaft (mm)
PRO Series - HPJM-RE30-40-PRO-XX | 51/101 | 1.8/2.8 | 2.3/3.3 | 3.3/4.8 | 90/45 | 118/59 | 36 | 24-48 | 1 | 2 | 216 (65,536) | 0.024 | 40/40 | CAN/EtherCAT | 6
HPJM-RE40-52-PRO-XX | 51/101 | 4/6.5 | 5.5/8.9 | 8.3/11 | 80/40 | 118/59 | 90 | 24-48 | 2 | 3 | 216 (65,536) | 0.05 | 40/30 | CAN/EtherCAT | 12
HPJM-RE50-60-PRO-XX | 51/81/101 | 6.6/9.6/9.6 | 8.6/13.5/13.5 | 23/29/34 | 75/46/37 | 97/61/49 | 150 | 24-48 | 3.6 | 5 | 216 (65,536) | 0.089 | 20/20/10 | CAN/EtherCAT | 12
... (see full model table in source specification) ...
Note: Specifications are for reference only; actual dimensions follow engineering drawings. PRO Series hollow‑shaft models support customization: brakes (optional); EtherCAT/CANopen; low‑temperature operation (-40°C).

Technical characteristics

• Series: PRO Series (multiple HPJM‑RExx‑PRO‑XX models).
• Supply voltage: DC 24V ~ DC 48V.
• Encoder resolution: 216 (65,536).
• Repeat positioning accuracy: ±10 arcsec; Absolute positioning accuracy: ±30 arcsec.
• Gear backlash: typically controlled within 20 arcsec (near zero‑backlash design).
• Transmission efficiency: >80%.
• Dual encoders: motor‑side and output‑side for full closed‑loop control.
• Integrated temperature sensor for real‑time monitoring.
• Embedded drive unit: supports EtherCAT and CANopen; dynamic PID adjustment.
• Optional features: brakes, torque sensor (customizable), low‑temperature operation (-40°C).
• Typical rated speeds, torques and hollow‑shaft sizes vary by model (see specification table).