DC servo-gearmotor HPJM-RE40-52-PRO-XX

permanent magnetservomotorharmonic

Introduction
The Robot Joint Motor achieves highly precise motion control through integrated components including harmonic drive, frameless torque motor, brake, encoder, and drive unit, with optimized size and weight. It delivers greater torque, higher precision, more compact size and lighter weight. Customization services are provided according to customers' specific requirements. Robot Joint Motors typically support a wide voltage range of DC24V~DC48V. As a core component in the robotics industry, these motors promote the development of specialized robots and humanoid robots toward higher flexibility and broader application scenarios. Beyond robotics, Robot Joint Motors are also applied in semiconductor equipment, photovoltaic equipment, precision medical equipment, 3C equipment and optical equipment.

Core Components

• Power Unit (Frameless Torque Motor): Provides high torque density and compact structure, suitable for high dynamic load scenarios.
• Harmonic Drive: Achieves speed reduction and torque multiplication, featuring zero backlash and high precision (backlash controlled within 20 arcsec).
• Dual Encoders (Motor-side + Output-side): Support full closed-loop control with repeat positioning accuracy of ±10 arcsec.
• Temperature Sensor: Monitors load and environmental status in real time to enhance safety and adaptability.
• Embedded Drive Unit: Supports communication protocols like EtherCAT and CANopen, enabling dynamic PID adjustment.

Features

• Superior precision & zero backlash: Zero-backlash design eliminates transmission clearance of traditional reducers, achieving repeat positioning accuracy of ±10 arcsec and absolute positioning accuracy of ±30 arcsec, suitable for precision motion control scenarios such as surgical robots and collaborative robotic arms.
• 3D Conjugate Dual-Arc Tooth Profile Technology: Optimizes tooth profile structure to reduce vibration and noise, improve transmission stiffness and service life, enabling smoother and more precise robot movements.
• Highly integrated, compact and lightweight design: High integration of harmonic drive and frameless torque motor results in compact structure suitable for space-constrained scenarios (e.g., robot wrists and head joints). Uses high-strength aluminum alloy, carbon fiber and other lightweight materials to reduce weight and improve energy efficiency and flexibility.
• High transmission efficiency: Transmission efficiency exceeds 80%, reducing energy loss and supporting efficient power transmission under dynamic load changes.
• High safety and reliability: Supports optional torque sensor integration for collision detection and drag teaching; harmonic drive designed to withstand high-load emergency stops with precision lifespan exceeding 10,000 hours.
• Intelligent integration and control: Embedded controller with multi-protocol compatibility (EtherCAT, CANopen) and modular design with standardized interfaces for quick integration and maintenance.

Specification (table)
Columns: Joint Model Number - 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
HPJM-RE50-70-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
HPJM-RE60-70-PRO-XX - 51/81/101/121 - 19.8/27.5/30/30 - 32/33/49/49 - 42/53/66/66 - 68/43/34/24 - 82/51/41/32 - 300 - 24-48 - 5 - 6.7 - 216 (65,536) - 0.096 - 20/20/10/10 - CAN/EtherCAT - 18
HPJM-RE60-80-PRO-XX - 51/81/101/121 - 19.8/27.8/30/30 - 32/33/49/49 - 42/53/66/66 - 68/43/34/24 - 82/51/41/32 - 300 - 24-48 - 5 - 6.7 - 216 (65,536) - 0.096 - 20/20/10/10 - CAN/EtherCAT - 18
HPJM-RE70-80-PRO-XX - 51/81/101/121 - 32/42/50/50 - 42/58/61/61 - 63/91/102/108 - 61/38/30/25 - 77/48/40/30 - 500 - 24-48 - 6.1 - 8.4 - 216 (65,536) - 0.118 - 20/20/10/10 - CAN/EtherCAT - 18
HPJM-RE70-90-PRO-XX - 51/81/101/121 - 32/42/50/50 - 42/58/61/61 - 63/91/102/108 - 61/38/30/25 - 77/48/40/30 - 500 - 24-48 - 6.1 - 8.4 - 216 (65,536) - 0.118 - 20/20/10/10 - CAN/EtherCAT - 18
HPJM-RE80-97-PRO-XX - 51/81/101/121/161 - 48/78/84/84/84 - 68.8/107/133/133/133 - 121/169/194/207/217 - 54/35/27/23/17 - 65/43/36/30/22 - 750 - 24-48 - 9 - 10.4 - 216 (65,536) - 0.143 - 20/20/10/10/10 - CAN/EtherCAT - 27
HPJM-RE80-110-PRO-XX - 51/81/101/121/161 - 48/78/84/84/84 - 68.8/107/133/133/133 - 121/169/194/207/217 - 54/35/27/23/17 - 65/43/36/30/22 - 750 - 24-48 - 9 - 10.4 - 216 (65,536) - 0.143 - 20/20/10/10/10 - CAN/EtherCAT - 27
HPJM-RE100-120-PRO-XX - 51/81/101/121/161 - 94/146/169/169/168 - 120/185/267/267/267 - 267/376/411/436/459 - 44/29/22/18/12 - 55/37/29/24/18 - 1000 - 24-48 - 15.8 - 16.9 - 216 (65,536) - 0.175 - 20/20/10/10/10 - CAN/EtherCAT - 32
HPJM-RE100-142-PRO-XX - 51/81/101/121/161 - 94/146/169/169/168 - 120/185/267/267/267 - 267/376/411/436/459 - 44/29/22/18/12 - 55/37/29/24/18 - 1000 - 24-48 - 15.8 - 16.9 - 216 (65,536) - 0.175 - 20/20/10/10/10 - CAN/EtherCAT - 32
HPJM-RE110-145-PRO-XX - 51/121/161 - 169/363/363 - 255/586/586 - 532/802/841 - 22/12/7 - 34/14/10 - 1500 - 24-48 - 14.1 - 30.2 - 216 (65,536) - 0.293 - 20/20/10 - CAN/EtherCAT - 40
HPJM-RE110-170-PRO-XX - 51/121/161 - 169/363/363 - 255/586/586 - 532/802/841 - 22/12/7 - 34/14/10 - 1500 - 24-48 - 14.1 - 30.2 - 216 (65,536) - 0.293 - 20/20/10 - CAN/EtherCAT - 40
Specifications are for reference only. Actual dimensions subject to engineering drawings. PRO Series hollow-shaft models support customization: Brakes (optional), EtherCAT/CanOPEN protocols, Low-temperature operation (-40°C).

Caractéristiques / spécifications techniques

• Model series: HPJM-RE PRO series
• Supply voltage: DC 24V ~ DC 48V
• Encoder resolution: 216 (65,536)
• Repeat positioning accuracy: ±10 arcsec; Absolute positioning accuracy: ±30 arcsec
• Gear backlash: controlled within ~20 arcsec (zero-backlash design)
• Torque constant examples: 0.024 to 0.293 N.m/A depending on model
• Communication: CANopen, EtherCAT (embedded drive supports multi-protocol)
• Rated power range: 36 W up to 1500 W depending on model
• Rated torque range: approx. 1.8 N.m up to 363 N.m (varies by model and gear ratio)
• Peak speeds and rated speeds vary by model (see specification table)
• Hollow shaft options up to 40 mm (varies by model)
• Materials: high-strength aluminum alloy, carbon fiber for lightweight applications
• Transmission efficiency: >80%
• Designed lifetime: precision lifespan exceeding 10,000 hours (application dependent)