direct drive rotary table free sample

Our direct drive rotary tables provide high torque and are easy to integrate. They contain high-energy magnets in a simplified mechanical design and drive loads directly without the need for a transmission mechanism or gearbox. It allows customers to build them right into a drive system for flexible placement and integration with cooling pipes and cables, for example.

We supply a wide range of frameless motors, and our adjustable motors include an optical encoder, scale, bearing and housing. Given our selection, it can be challenging to choose the best direct drive motor for your project. Our engineers prefer to help you find the right rotary table for your requirements.

Our most popular rotary motor, the AXD series is characterized by a slim, compact "pancake" design with high peak and continuous torque despite the motor"s quite small form factor.Direct drive and brushless motor

The ACD series is a set of ironless rotary tables. This motor is cogging-free and features high-resolution optical encoder feedback and low speed variability. This permanent magnet motor is equally suited for either low or high speed applications.Zero cogging coreless motor

The ACW series features a cogless construction and lean design, with high-precision coding and ultra-precision bearings. Together, this results in our highest performing motor in terms of repeatability and smooth motion.Direct drive brushless motor

The ADR-A series is available with both low and high speed windings and is fully equipped with an encoder and bearing. This series has a high slot fill factor and generates very high torque.Direct drive brushless permanent magnet motor

The ADR-B range performs at a similar slot fill factor and torque density to the ADR-A range, but has a larger center hole compared to its equivalent.Direct drive brushless permanent magnet motor

Similar to the ACD series, the AXM series also features an ironless design and zero noise characteristics. This motor has a compact design, making it ideal for applications with specialized size requirements.Direct drive brushless permanent magnet motor

PI’s direct-drive rotary tables with frictionless, brushless, closed-loop torque motors provide the best combination of high accuracy, high velocity, and maximum service life. PI provides closed-loop direct drive rotary tables with both mechanical bearings and air bearings. Stage models with large apertures and low profile are available. The stage design is optimized for high speed, stiffness, and high load capacity. If completely friction-free and maintenance free motion with virtually unlimited lifetime is required, air bearing rotation tables are recommended. These ultra-precision, high-speed rotary tables provide vibration-free motion with extremely high accuracy and negligible runout, wobble and eccentricity errors. The lack of lubricants makes these also clean room compatible and ideal for any high-performance metrology application in optics, photonics, and semiconductor manufacturing, test and metrology related projects.

In contrast to worm gear driven rotary stages or belt-drive rotation stages, torque-motor direct drive stages eliminate play in gears, couplings or flex in drive belts, providing motion with zero backlash and excellent constancy of velocity, while achieving higher speed than worm-gear drives.

PI’s precision direct-drive, positioning tables can be used in high performance factory automation, research, semiconductor, and laser processing applications. Due to the use of brushless high-torque, motors with direct metrology position feedback, backlash is completely eliminated, and reliability is greatly improved.

With modern direct-metrology rotary encoders, sensor resolution down to 1/100th of a microrad is available on select models with large rotary table platforms, using the high interpolation factors

Based on the high encoder resolution and powerful servo controllers, the direct-drive rotary tables also provide excellent velocity control, which is required in automation applications including high-speed laser processing, indexing, and semiconductor wafer inspection.

Most Direct Drive Rotation stages can be mounted horizontally and vertically, and with combinations all 3 rotary degrees of freedom (3DOF, pitch, yaw, and roll) can be addressed.

3-phase magnetic direct drives do not use mechanical components in the drivetrain, they transmit the drive force to the motion platform directly and without friction. The drives reach high velocities and accelerations. Iron core motors are used when forces and accelerations need to be achieved in a limited installation space. The design with iron cores maximizes the magnetic forces and ensures high thermal stability of the drive.

HIWIN rotary tables are ready-to-install rotary axes consisting of a torque motor, bearing, motor housing, and positioning measuring system. HIWIN rotary tables are zero-backlash, extremely rigid, optimized for high torques, have robust dynamics and are especially well suited for tasks in a wide range of automation processes. Their lack of gear needed results in high efficiency and a quiet operation. Various sizes in diameter and height are available with the option to add a servo drive for a complete plug and play solution.

Linear Motors can be used in cleanroom environments. In fact, many front-end semiconductor applications have linear motors in use. In wafer manufacturing plants, high-precision lithography machines, for example, use linear motors in XY positioning tables with very high accuracy (nanometer resolution) and submicron accuracy in cleanroom classes according to ISO 2.

Linear Motors can be used in cleanroom environments. In fact, many front-end semiconductor applications have linear motors in use. In wafer manufacturing plants, high-precision lithography machines, for example, use linear motors in XY positioning tables with very high accuracy (nanometer resolution) and submicron accuracy in cleanroom classes according to ISO 2.

Direct Drive Rotary Table is a kind of rotary table used to the continuous operation which is several times more agile and accurate than conventional face gear or rack and pinion rotary tables.

Thanks to the use of specific bearings, Direct Drive Rotary Table has got to highly rigid and stable characteristics with a low runout of less than 0.015 mm in a very compact form factor.

A strong high torque motor used as the heart of the Direct Drive Rotary Table to make it rapid, stiff and powerful which is being monitored by a high-resolution encoder to reach the real flexibility with high accuracy.

From among other advantages of these Direct Drive Rotary Tables, we can refer to the short time of indexing, their repeatability, their free choice of indexing positions, and their tolerability of extremely high radial and axial torques during rotation and stopping.

Systems based on Direct Drive Rotary Table will surely be free of any defects for a long time, and will not require any repairs. Based on the application requirements, this product can be equipped with internal and/or external clamps.

The rotational inertia influences the inertia mismatch between the payload and motor, which in turn affects the servo system’s ability to control motion. While keeping the inertia mismatch below a 10:1 ratio is a good rule of thumb for applications using plug-and-play motors and drives, modern control systems can remain stable at far higher mismatches as long as you have no disturbances and are able to adjust the PID tuning. An SBR can easily be tuned for stable indexing at up to 200:1 and beyond.

Sample payloads are shown below with dotted lines representing one-inch thick aluminum plates of various outer diameters. This information can serve as a quick guide to controllable inertia ratios for different SBR and motor combinations. Other cases can be quickly assessed by mentally moving a dashed line downwards in proportion to your payload thickness. For example, if your table has a 12-inch diameter and 0.5-inch thickness, shift the 12-inch dashed line down by half to end the mismatch for a given house motor. Or, consider your actual payload inertia if known.

A turbo among rotary tables – the new FIBRODYN DA direct driven rotary tables with torque motor are optimally suited for all handling and assembly applications that require the shortest indexing times and flexible positioning. Thanks to its measuring system directly in the rotary table axis, any position can be moved to with the highest precision. The slim design with its very space-saving, compact construction and its fitted boreholes makes it very easy to integrate the rotary tale into your system. FIBRODYN DA is also available as decentralized stand-alone solution with integrated control. In this version, it offers the ideal opportunity to save a separate external NC control to minimize the implementation and start-up costs and to realize small machines without complex peripherals. The rotary tables are lifetime lubricated and maintenance free.

This compact closed-loop direct drive rotary table uses a 3-phase motor for maintenance free, frictionless power transmission. It comes in two variations, standard and with holding brake.

Application video of the silent ultrasonic piezo motor rotary stage in a Leica Theodolite and Principle Design of the PILine drive used in the M-660 PILine� rotary stage

This miniaturized closed-loop rotary positioner is driven by an ultrasonic direct-drive motor and provides high rotational velocity up to 3 revolutions / second. An optical encoder is integrated for direct position measurement and feedback with 35 �rad resolution.

A fast ultrasonic ceramic ring-shaped resonator motor provides high speed to 120 RPM. An optical direct metrology encoder is integrated for position feedback.

Q-motion series miniature rotation stages are driven by inertia-type piezo motors. These miniaturized positoining tables are direct-driven, backlash free and provide micro-radian resolution. The self-locking design requires no holding current and provides excellent long-term stability. Three different diameters are available: 14 mm, 22 mm and 32 mm.

The PI miCos line of goniometers and rotation stages is specialized on miniature stages with different motor drives (belt-drives, worm-gear drives) and also on ultra-high precision stages with torque motors, direct metrology and air bearings.

P-5x8 series, Z/tip/tilt nanopositioners are open-frame, high-resolution, piezo-driven stages providing Z motion to 240 �m and rotation around X and Y to 2.4 mrad with resolutions of up to 0.5 nm and 50 nrad. The 66 x 66 mm clear aperture is ideal for transmitted-light applications.

The S-335 miniature platforms rotate a mirror up to 35 mrad (70 mrad optical deflextion) around the X and Y axes. These fast mirror scanners are based on solid-state piezo drives and a parallel-kinematics flexure guiding system, with two coplanar, orthogonal axes and a fixed pivot point.

This piezo platform can rotate a mirror or optic up to 2 mrad (4 mrad optical deflection) around two orthogonal axes. The parallel-kinematic, solid-state piezo drive system guarantees exceptional precision and very fast response in the low millisecond range and below.

To achieve rotary motion, Cross Company pairs a rotary table with a servo motor, drive and control to create a complete rotary actuation system.  This allows greater flexibility for your rotary positioner because you’re not tied to just one or two positions.  Some examples of rotary actuation that Cross Company has worked on recently include:Robotic cells which require precise rotary indexing for manufacturing stations

Cross Company’s Automation Group works with several different manufacturers of motors, drives and rotary tables.  We work with you to understand your application and then we size and specify the best combination for your particular need.  We have literally decades of experience working with rotary actuators, so we can specify a robust solution optimized for the application.

Cross is proud to represent the following manufacturers of rotary positioners:Parker:Worm gear-driven precision rotaries, manual stages and direct drive rotary servo motors which are suitable for light to medium industrial precision positioning

In virtually every industry, a right-sized rotary solution increases the throughput and efficiency of your process.  By working with Cross Company, we can help reduce the risk of incorrectly sized and specified equipment, delivering a complete solution perfectly tailored to your application.  Contact the experts at Cross to discuss your rotary positioning needs.

Aerotech’s ADRS series combines direct-drive brushless technology with a low profile to increase throughput and minimize “stack-up” related errors at your work point. With no brushes to replace and no gear trains or belts to maintain, direct-drive technology is optimized for 24/7 production environments. It provides quicker acceleration and higher top speeds than gear- or belt-driven mechanisms, yielding higher total overall throughput. The low-maintenance and high-performance characteristics of the ADRS series result in a lower total cost of ownership.

Metric and English pattern tabletops are available, and slotted mounting holes enable attachment to 25 mm and 1-inch hole pattern breadboards. Tabletops also feature a labyrinth seal to protect the bearings and encoder from contamination. Add an optional lower seal to the shaft for applications where the bottom of the stage is exposed to contamination.