V-141 Compact High-Precision Direct Drive Linear Stage

Product overview

V-141 direct-drive linear stages are designed for accuracy, precision, long life, ease of use, and can be mounted in any orientation. A model with integrated counterbalance is available for vertical operation.

Even though compact, V-141 linear stages offer superior travel accuracy, flatness, and performance compared to bigger stages. With a powerful, non-cogging, direct drive motor, the V-141 linear stage family performs well in production environments. The ultra-precision cross roller bearings are intended to be low maintenance for the life of the stage.

The V-141 is designed for XY and XYZ mounting. The Z model comes with a magnetic counterbalance.

Three phase motors for higher dynamics and friction-free, maintenance-free operation

The three-phase linear motors driving the V-141 stage family transfer their force directly and friction-free to the motion platform. This eliminates backlash and play that can result from mechanical components like gears and screws in the drivetrain. Ideal for high-velocity, high-acceleration applications, these motors feature a maintenance-free, frictionless design, ensuring longevity in demanding 24/7 operations. The controller's current limit settings allow easy motor disablement, preventing damage to the stage or the application.

Crossed roller bearings improve load capacity, accuracy and lifetime

Crossed roller bearings offer a superior level of smoothness, straightness, and flatness, close to air bearing performance. By replacing the point contact of ball bearings with a line contact, rollers become considerably stiffer, requiring less preload. The resulting reduction in friction enables smoother running and higher accuracy. Crossed roller bearings can also support higher vertical and moment loads. The anti-creep mechanism prevents roller drift, enhancing reliability. Cleanroom grease is applied for low-maintenance operation.

Incremental encoder

V-141 stages are equipped with incremental sin/cos linear encoders that measure position with utmost accuracy directly at the motion platform, enhancing linearity and ensuring immunity to mechanical play and elastic deformation which can result from indirect measuring methods. A home signal is built in to initiate the stage.

Choosing the right precision linear stage and motion controller

Selecting the right linear stage is pivotal for optimal performance in high-precision motion applications, such as semiconductor inspection and photonics alignment. Factors such as resolution, guiding accuracy, and repeatability must be carefully considered. These linear stages offer excellent geometric accuracy (flatness, straightness, pitch, and yaw) along with 0.125 µm bi-directional repeatability in a very compact package. With high dynamic properties, including up to 2 g acceleration and 1 m/sec velocity, these compact motorized stages are ideal for the automation of 24/7 highly accurate positioning tasks required for micro-assembly, alignment, or mass production of precision devices.

Partnered with PI’s A-8xx series motion controllers, these stages achieve unparalleled motion performance. PI’s EtherCAT-based controllers offer remarkable flexibility, facilitating the seamless integration of third-party equipment compatible with EtherCAT. Advanced algorithms in the A-8xx series motion controllers, such as PILOT allow for higher dynamics with reduced motor currents, virtually increasing the motor’s force constant. Choose the compact V-141 for precision, reliability, and efficiency in your motion applications.

Accessories and options

• Magnetic counterbalance for vertical use
• Single or multi-axis, ACS motion controllers and servo drives, integrated or distributed
• Cables compatible with ACS-powered controllers of the A-8xx series
• Multi-axis assemblies

Controllers and cables

A-81x: ACS based controllers (2, 4 axis models, various configurations) for medium power requirements

A-82x: ACS based controllers (4, 6, 8 axis models, various configurations) for high power requirements

A-851.VA03: Cable set, V-xxx to A-8xx controllers, sin/cos encoder signals, 3 m length

Application fields

Precision micro-assembly. Research. Biotechnology. General Automation. Device assembly. Laser Micro-processing. Pick and place. Photonics Alignment and Assembly.