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QDD Motors logoQDD Motors
WhatsApp
QDD Motors logoQDD Motors

Industrial motion manufacturer supporting custom engineering, strict quality control, and global delivery.

Inquiry Email

[email protected]

Email app

Include target torque/speed, quantity, and delivery location.

Instant Chat

+86 188 5797 1991

Request CAD Model via WhatsApp

Opens a direct WhatsApp thread with the RFQ message prefilled.

Products
  • Quasi-Direct Drive (QDD) Actuators
  • Robot Joint Motor Modules
  • Hollow Shaft Joint Motors
  • High Torque BLDC Motors
  • Low Ratio Geared Motors
  • Standard AC Motors
  • Stainless Steel Washdown Motors
Solutions
  • Exoskeleton Power Solutions
  • Quadruped & Humanoid Joints
  • Humanoid Robot Actuators
  • Quadruped Robot Actuators
  • Robotic Arm Joint Solutions
  • Mobile Robot Drive Systems
  • Medical Rehabilitation Motors
  • Harsh Environment
OEM Capabilities
  • Stator & Rotor Lamination
  • CNC Machining & Tooling
  • Assembly & Testing
  • Custom Engineering
Resources
  • Blog
  • About
  • Quality & Certifications
  • Contact / RFQ
  • Privacy Policy
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© 2026 QDD Motors. All Rights Reserved.|QDD Motors supports OEM robot joint motor programs with engineering review, manufacturing coordination, quality records, and export delivery planning.
Solutions

Robot Motor Application Solutions

Select application scenarios to review QDD motor architecture, joint actuator fit, factory capability, and OEM support direction for robotics programs.

Each solution page is written for buyer-side decisions: what to validate first, where project risk usually appears, and what data should be included in the initial RFQ to avoid quote loops.

Application Selection Workflow

  1. Map your machine module and axis motion profile.
  2. Define performance acceptance criteria with measurable limits.
  3. Match solution architecture to control stack and thermal envelope.
  4. Freeze prototype validation gates before PO release.
Exoskeleton Joint Motor

Exoskeleton Power Solutions

Ultra-compact, flat-profile QDD actuators and hollow-shaft joint motors for medical, industrial, and research exoskeleton programs.

For biomedical engineers, wearable robot architects, and sourcing teams that need compact actuators with traceable samples and human-safe validation criteria.

  • Flat actuator geometry for hip, knee, ankle, and shoulder packages
  • Backdrivable low-ratio drivetrain for human-in-the-loop control
  • Lightweight housing, encoder, brake, and cable-routing customization
View details
Humanoid robot actuator motor for leg and arm joints

Humanoid Robot Actuators

Joint motor and QDD actuator platforms for humanoid hips, knees, ankles, shoulders, elbows, and wrists.

For humanoid robot CTOs, mechanical leads, and sourcing teams balancing performance, BOM cost, and supply continuity.

  • Joint-specific torque classes for full-body humanoids
  • Low reflected inertia for balance recovery
  • Shared platform strategy across hip, knee, ankle, and arm variants
View details
Robot dog joint actuator for quadruped legs

Quadruped Robot Actuators

High-response QDD and low-ratio joint motors for robot dog hip, knee, and wheel-leg actuator programs.

For legged robot teams that need shock tolerance, responsive torque control, and a supplier who can move from sample tuning to stable batches.

  • Impact-tolerant hip and knee actuator sizing
  • Backdrivable low-ratio drivetrain options
  • Torque, speed, backlash, and thermal validation support
View details
Robotic arm actuator motor for compact joint design

Robotic Arm Joint Solutions

Hollow-shaft and high-torque motor platforms for collaborative robot shoulders, elbows, wrists, and end-effector axes.

For robotic arm OEMs and integrators evaluating torque density, clean cable routing, smooth motion, and repeatable assembly.

  • Hollow-shaft routing for compact arm joints
  • Low cogging and low backlash for smooth manipulation
  • Custom flanges, brakes, encoders, and cable exits
View details
AMR drive motor for mobile robot traction systems

Mobile Robot Drive Systems

BLDC, hub, and geared motor platforms for AMR, AGV, service robot, and inspection robot drive modules.

For mobile robot OEMs that need drive motors matched to battery voltage, payload, slope, speed, and field reliability.

  • Custom winding for battery-powered drive systems
  • Hub, geared, and integrated servo motor options
  • Encoder and driver matching for closed-loop traction control
View details
Medical robot motor for traceable rehabilitation systems

Medical & Rehabilitation Robot Motors

Low-noise, traceable, and human-safe motor platforms for rehabilitation robots, medical devices, and assistive motion systems.

For medical device engineering and sourcing teams that need stable samples, documentation discipline, and careful change control.

  • Low noise and smooth torque control focus
  • Traceable production records for regulated buyers
  • Custom housings, seals, encoders, and cable assemblies
View details
Humanoid Leg Motor

Quadruped & Humanoid Joints

Integrated QDD actuator modules combining motor, low-ratio gear, encoder, driver, and mechanical package review for legged and humanoid robot joints.

For robotics labs and commercial robot manufacturers comparing QDD modules by torque class, control bandwidth, impact tolerance, and sample-to-pilot repeatability.

  • Hip, knee, ankle, shoulder, and elbow actuator architecture support
  • Low reflected inertia and high impact-torque tolerance
  • CAN FD, RS485, EtherCAT, encoder, and driver integration options
View details
Harsh Environment Actuator

Harsh Environment

IP69K, stainless, sealed, and rugged motor solutions for washdown, marine, wet-room, dusty, and chemically aggressive equipment environments.

For food-tech, pharma, marine, and heavy industry integrators that must prove the motor will survive cleaning chemistry, water ingress, corrosion, and audit scrutiny.

  • IP69K, NEMA 4X, and sealed motor architecture review
  • 304L/316L stainless, food-grade lubricant, and seal-material options
  • Smooth housing, cable gland, connector, and corrosion-control choices
View details

Solution Comparison Snapshot

SolutionPrimary Buyer FocusKey MetricWhy It Matters
Exoskeleton Power SolutionsFor biomedical engineers, wearable robot architects, and sourcing teams that need compact actuators with traceable samples and human-safe validation criteria.Weight-to-Torque Ratio: Application-optimized Nm/kgEvery gram near the limb affects user fatigue, battery size, and wearable comfort.
Humanoid Robot ActuatorsFor humanoid robot CTOs, mechanical leads, and sourcing teams balancing performance, BOM cost, and supply continuity.Joint Torque Classes: 20 Nm - 300 Nm classHumanoid programs need different torque bands for ankle, knee, hip, shoulder, elbow, and wrist modules.
Quadruped Robot ActuatorsFor legged robot teams that need shock tolerance, responsive torque control, and a supplier who can move from sample tuning to stable batches.Peak-to-Continuous Ratio: 3x - 5x continuous classLegged robots need short impact and recovery torque without overheating during sustained gait.
Robotic Arm Joint SolutionsFor robotic arm OEMs and integrators evaluating torque density, clean cable routing, smooth motion, and repeatable assembly.Hollow Bore Fit: Custom by axis envelopeClean cable routing reduces external harness complexity and improves arm reliability.
Mobile Robot Drive SystemsFor mobile robot OEMs that need drive motors matched to battery voltage, payload, slope, speed, and field reliability.Wheel Torque: Calculated by payload, slope, and wheel diameterPrevents undersized drive modules that overheat or stall in real facility routes.
Medical & Rehabilitation Robot MotorsFor medical device engineering and sourcing teams that need stable samples, documentation discipline, and careful change control.NVH Limit: Buyer-defined acoustic and vibration targetMedical and rehabilitation devices operate close to users where noise and vibration affect acceptance.
Quadruped & Humanoid JointsFor robotics labs and commercial robot manufacturers comparing QDD modules by torque class, control bandwidth, impact tolerance, and sample-to-pilot repeatability.Peak Torque Multiplier: 3x - 5x continuous classLegged robots need short impact and balance-recovery torque without designing every joint around peak load.
Harsh EnvironmentFor food-tech, pharma, marine, and heavy industry integrators that must prove the motor will survive cleaning chemistry, water ingress, corrosion, and audit scrutiny.Cleanability: Smooth housing, minimized crevices, laser markingReduces line downtime and sanitation risk during cleaning or CIP procedures.

Related Engineering Resources

  • Absolute Encoder Selection Guide — Use our calculator to determine the required bit resolution for your robotic joints and compare magnetic vs optical feedback.

Inquiry Email

[email protected]

Email app

Include target torque/speed, quantity, and delivery location.

Instant Chat

+86 188 5797 1991

Request CAD Model via WhatsApp

Opens a direct WhatsApp thread with the RFQ message prefilled.