High Precision Joints (HPJ)

Zero Backlash. Exceptional Precision. Integrated for Advanced Robotics.

high precision joints

The maxon High Precision Joint (HPJ) platform is a family of integrated robotic actuators engineered for applications that demand exceptional positioning accuracy, compact design, and seamless system integration. Combining a high-torque frameless motor, zero-backlash strain wave gear, precision encoders, and robust mechanical elements into a single package, HPJ systems provide a highly optimized solution for advanced robotic motion control.

Designed for robotic systems where precision cannot be compromised, HPJ actuators deliver smooth, repeatable motion with outstanding control performance. Their modular architecture allows for customization and integration flexibility while reducing the complexity of developing high-performance robotic joints from individual components.

Key Features

  • Zero-backlash strain wave gearing for highly accurate positioning
  • Integrated motor, gearhead, encoders, and bearings in a compact package
  • High torque density for space-constrained robotic systems
  • Hollow-shaft design for cable and media routing
  • Absolute output encoder and integrated commutation encoder
  • Rigid, mechanically robust construction
  • Optional customization including brakes, electronics, and safety functions
  • Compatible with advanced motion control platforms and EtherCAT-based systems

HPJ actuators are built around maxon’s proven EC Frameless DT motor technology and strain wave gear systems, creating a compact robotic joint optimized for precision, repeatability, and long-term reliability.

Built for Precision Robotics

High Precision Joints Are Ideally Suited For:

  • Surgical robots
  • Collaborative robots (cobots)
  • Industrial manipulators
  • Laboratory automation systems
  • Semiconductor handling equipment
  • Mobile manipulation platforms
  • Rehabilitation and assistive robotics
  • Precision pan/tilt and vision systems

Their combination of compact size, high torque density, and precision motion makes them particularly valuable in applications requiring exact positioning and smooth, controlled movement.

Why Choose High Precision Joints?

HPJ systems simplify robotic development by integrating the critical drivetrain components into a single, validated solution. With zero-backlash performance, high-resolution sensing, customization capabilities, and proven maxon drive technology, HPJ actuators help accelerate development while delivering the precision and reliability required by next-generation robotic systems.