In order to achieve high throughput today, industrial measuring technology and microscopy, optical inspection tasks, and laser processing need positioning systems that are as fast as possible and offer high travel accuracy and stability.
High throughput with high travel accuracy and stability: V-731 Precision XY Stage for industrial applications (Image: PI)
For these application fields, PI (Physik Instrumente) now offers a new series of different motorized XY stages (V-731 and L-731) that work with velocities up to 200 mm/s. The bidirectional repeatability is 0.1 µm and minimum incremental motion is 0.02 µm. The XY stages, which have a size of only 310 × 310 × 80 mm, are offered with travel ranges of 205 × 205 mm (8 inches) and it is also possible to offer customized versions. They are controlled by PI controllers or – in multi-axis gantry applications – via an industrial controller from ASC, a worldwide leading manufacturer of modular motion controllers, who was taken over by PI at the beginning of 2017.
Suitable Drives for Different Requirements
Either linear drives (V-731) or stepper respectively DC motors (L-731) are the driving force behind the new XY stages. The three-phase linear motors dispense with mechanical components in the drivetrain and transfer the drive force directly to the motion platform without any friction. This means that velocities OG up to 200 mm/s are possible. The ironless motors are particularly suitable for positioning tasks with the highest demands on precision because there is no undesirable interaction with the permanent magnets. This allows smooth running even at the lowest velocities and at the same time, there is no vibration at high velocities.
The L-731 XY stage works with velocities to 80 mm/s. It is possible to use either stepper or DC motor-spindle drives. The two-phase stepper motors also generate a high torque at lower velocities; the DC motor variants are recommended for applications that require high running smoothness at high forces.
Find out more about the V-731 here:
V-731 High-Precision XY Stage
Find out more about the L-731 here:
L-731 Precision XY Stage
Well known for the high quality of its products, PI (Physik Instrumente) has been one of the leading players in the global market for precision positioning technology for many years. PI has been developing and manufacturing standard and OEM products with piezo or motor drives for 40 years. By acquiring the majority shares in ACS Motion Control, a worldwide leading developer and manufacturer of modular motion controllers for multi-axis and high-precision drive systems, PI has made a major step forward in providing complete systems for industrial applications with the highest demand on precision and dynamics. In addition to four locations in Germany, the PI Group is represented internationally by fifteen sales and service subsidiaries.