Product Details Supplier Info More products

Physik Instrumente (PI) has introduced the H-820 Hexapod for applications in industrial automation and manufacturing, as well as biotechnology research.

The H-820 system includes a digital controller commanded via Ethernet. All target positions are given in Cartesian co-ordinates.

The Hexapod is driven by six high-resolution actuators, all connected directly to the same moving platform. This parallel-kinematic structure combines high system stiffness with a large clear aperture.

Because of the low mass of the moving platform, positioning operations can be performed with far lower settling times than with stacked multi-axis systems. In those systems, run-out and guiding errors — which affect the dynamic properties of the individual axes — as well as friction and inertia of moving cables all accumulate to limit the system’s accuracy and repeatability.

These problems do not affect parallel-kinematic systems such as the Hexapod.

Key specifications

  • Linear repeatability is 20μm and 200μrad in the tip/tilt or rotational axes
  • Travel ranges are up to 100mm in X and Y direction and 50mm in the Z axis
  • Rotational angles are up to 60°
  • Specially developed brushless torque motors allow a load capacity of 20kg
  • Velocities of up to 20mm/sec can be achieved

Physik Instrumente

PI is a global manufacturer of high precision positioning systems and products based on piezo technology. Used in markets as diverse as biotechnology, semiconductor, defence and astronomy, PI’s products work to improve the speed and precision of many cutting edge processes. Actuators, sensors and positioning systems with either sub-micron or nanometre level precision; many customised for the end user, are included in the product range.

With manufacturing and subsidiary offices around the world and a workforce of more than 500 PI provides direct local support where it is needed. Products range from component level piezo ceramic assemblies to six axis hexapod positioning robots. PI manufactures its own piezo ceramic material including multilayer devices that incorporate its patented ceramic insulation technology. Lead free ceramic technology is now also included in the company’s product range. With the flexibility and continuity of supply offered by having control of piezo ceramic production comes security and speed of delivery for customers who rely on or are looking to move into this area of technology. PI’s piezo ultrasonic and step drive motor technologies offer unique performance including self-locking capability, high force or high speed and non-magnetic and vacuum compatibility.

View full profile