ROBSTRIDE04 QDD 120N.m Integrated Joint BLDC Gear Motor is a quasi-direct-drive integrated actuator for robotic joints, research platforms, robotic arms, legged robot prototypes, and compact automation axes. It combines motor, reducer, drive electronics, and encoder feedback into a compact motion module for engineering teams. Official RobStride data lists 120N.m peak torque/load, 40N.m rated torque/load, 48V rated voltage, 15-60V voltage range, FOC drive control, 9:1 reduction ratio, and Magnetic Encoder x 2. Use the comparison table below to select the right ROBSTRIDE model for your torque, voltage, mass, and protection-level requirements. Features 120N.m peak torque class - Official RobStride data lists 120N.m peak torque/load for short-duration actuator output within correct current and thermal limits. 40N.m rated torque class - Use this actuator where the mechanism fits the listed 40N.m rated torque/load class. Integrated QDD actuator module - Combines motor, reducer, driver, and encoder feedback for compact robotic joint integration. Magnetic Encoder x 2 feedback - Supports closed-loop robotic joint control using the encoder configuration listed in the official data. 48V rated voltage - Designed around a 48V system with a listed 15-60V operating range. FOC drive method - Field-oriented control is listed in the official mechanical data for precision motion-control applications. 9:1 reduction ratio - Uses a compact reduction stage with machined steel gear material. 120 x 120 x 56 mm actuator body - Official mechanical data lists 120 x 120 x 56 mm size and 1420g ± 20g weight. 1MbpS communication baud rate - Useful for controller integration when the electrical setup follows the official communication requirements. Specifications Model RobStride 04 Product Type QDD integrated robot joint motor module Size 120 x 120 x 56 mm Weight 1420g ± 20g Protection Level IP52 (Supporting customize IP67) Flange Hole Location 35.86 x 9 x 9 mm (M5) Mechanical Installation Hole Location 106 x 10 x 6 mm (M4) Electrical Terminal Interface XT30 + GH1.25 Poles 42 Phases 3 Drive Method FOC Reduction Ratio 9:1 Gear Material Machined Steel Rated Voltage 48V Voltage Range 15-60V Rated Output Power 700w ± 10% Rated Torque / Load 40N.m Peak Torque / Load 120N.m No-load Speed 200rpm ± 10% No-load Current 0.7Arms ± 10% Rated Load Speed 50rpm ± 10% Rated Load Phase Current 27Apk ± 10% Peak Phase Current 90Apk ± 10% Back-EMF 16.9Vrms/rpm ±10% Line Resistance 0.16Ω ± 10% Torque Constant 2.1N.m/Arms Inductance 0.211mH ± 10% Encoder Magnetic Encoder x 2 Encoder Resolution 14bit Baud Rate 1MbpS Temperature Range -20~50℃ Humidity Range 5~85% Storage Temperature Range -30~70℃ Insulation Level Class B Insulation Resistance / Stator Winding DC 500VAC, 100M 0hms High Voltage Resistance / Stator and Casing 600VAC, 1s, 2mA Hardware Overview ROBSTRIDE Parameter Comparison The table below compares official RobStride actuator parameters for quick model selection. Not listed means the parameter is not published in the official data used for this comparison. Model Peak Torque / Load Rated Torque / Load Rated Voltage Voltage Range Size Weight Protection Level Encoder Reduction Ratio No-load Speed ROBSTRIDE00 14N.m 5N.m 48V 24-60V 57 x 57 x 51 mm 310g ± 10g Not listed 2 Magnetic Encoder 10:1 315rpm ± 10% ROBSTRIDE01 17N.m 6N.m 36V 24-48V 78.5 x 78.5 x 40 mm 380g ± 3g IP52 (Supporting customize IP67) Magnetic Encoder x 1 7.75:1 315rpm ± 10% ROBSTRIDE02 17N.m 6N.m 48V 24-60V 78.5 x 78.5 x 45.5 mm 405g ± 5g IP52 (Supporting customize IP67) Magnetic Encoder x 2 7.75:1 410rpm ± 10% ROBSTRIDE03 60N.m 20N.m 48V 15-60V 106 x 106 x 56 mm 880g ± 20g IP52 (Supporting customize IP67) Magnetic Encoder x 2 9:1 195rpm ± 10% ROBSTRIDE04 120N.m 40N.m 48V 15-60V 120 x 120 x 56 mm 1420g ± 20g IP52 (Supporting customize IP67) Magnetic Encoder x 2 9:1 200rpm ± 10% ROBSTRIDE05 5.5 N.m 1.6 N.m 48 V 15-60 V 46 x 46 x 44 mm 191g ± 10g Not listed 2 Magnetic Encoder 7.75:1 480 rpm±10% ROBSTRIDE06 36 N.m 11 N.m 48 V 15-60 V 88 x 88 x 49 mm 621g ± 10g Not listed 2 Magnetic Encoder 9:1 480 rpm±10% ROBSTRIDE-EDULITE05 6 N.m 1.8 N.m 48 V 15-60 V 46 x 46 x 44 mm 242g Not listed 2pcs 9 430 rpm±10% ROBSTRIDE02-IP67 17N.m 6N.m 48V 24-60V 60 x 60 x 27 mm 490g ± 5g IP67 Magnetic Encoder x 2 7.75:1 410rpm ± 10% Reference Documents RobStride RS04 User Manual (PDF) RobStride RS04 STEP 3D Model RobStride RS04 Product Literature Folder RobStride Official Download Center Application Robot joint development - Build compact rotary joints for arms, legs, gimbals, and custom motion platforms. Humanoid and quadruped research - Prototype controlled joint axes where integrated actuator packaging is useful. Robotic arms - Develop shoulder, elbow, wrist, or gripper rotary axes for lab automation and manipulation research. Mobile robotics - Integrate controlled rotary motion into AMR, AGV, inspection robot, and mechatronic subsystems. Education and training - Teach actuator control, encoder feedback, FOC concepts, and joint tuning workflows. Custom automation - Use in low-speed high-torque fixtures, pan-tilt systems, haptic rigs, and test benches. Packing List Selected Variant SKU Included Item Quantity Motor (w/o Debug） TB-ROBSTRIDE04 ROBSTRIDE04 actuator motor module 1 Debug Board TB-ROBSTRIDE-Debug ROBSTRIDE debug board accessory 1 FAQ .faq-accordion details { border-bottom: 1px solid #e6eef8; padding: 14px 0; } .faq-accordion summary { list-style: none; cursor: pointer; font-size: 16px; font-weight: 700; color: #1f2933; position: relative; padding-right: 32px; } .faq-accordion summary::-webkit-details-marker { display: none; } .faq-accordion summary::after { content: "\203A"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%) rotate(90deg); color: #007fff; font-size: 28px; line-height: 1; transition: transform 0.2s ease; } .faq-accordion details[open] summary::after { transform: translateY(-50%) rotate(270deg); } .faq-accordion p { margin: 12px 0 0; color: #4b5563; line-height: 1.65; } Which ROBSTRIDE model does this page cover? This page covers ROBSTRIDE04, the selected QDD integrated robot joint motor module. What torque values are officially listed? Official RobStride data lists 40N.m rated torque/load and 120N.m peak torque/load for ROBSTRIDE04. What voltage should be planned? The listed rated voltage is 48V, with a listed 15-60V voltage range. Confirm power supply capacity, current limits, and protection before testing. What encoder feedback does it use? The official data lists Magnetic Encoder x 2 for this actuator. How should I compare it with other ROBSTRIDE models? Use the ROBSTRIDE Parameter Comparison table above to compare torque, voltage, weight, protection level, encoders, reduction ratio, and no-load speed across the series. Is this listing only for the motor module? The Shopify options may include the motor module and a debug board accessory. Choose the motor module option for the actuator, or choose the debug board option only when you need that accessory. What should be checked before integration? Confirm mounting geometry, torque margin, thermal limits, power supply sizing, CAN wiring where applicable, software configuration, and safe test fixtures before powering the actuator.
Related
Related