low profile rotary table free sample

PILine® stages are particularly suitable for applications that require fast precision positioning. When switched off, the self-locking drive holds the position of the stage mechanically stable. Energy consumption and heat generation are therefore considerably reduced. Applications with a low duty cycle that are battery-powered or heat-sensitive benefit from these characteristics. The position of the axis is measured by an encoder and an optical reference switch allows reliable repeatable motion. The piezomotor drive principle and its electrical operation are inexpensive and can be customized.

With crossed roller guides, the point contact of the balls in ball guides is replaced by line contact of the hardened rollers. Consequently, they are considerably stiffer and need less preload, which reduces friction and allows smoother running. Crossed roller guides are also distinguished by high guiding accuracy and load capacity. Force-guided rolling element cages prevent cage creep.

New low-profile air bearing rotary spindle design provides 50nm flatness and 50kg payload. PI’s RL series of direct drive air bearing tables is only 60mm tall and provides precision beyond what’s known from rotary indexing turn tables with mechanical bearings.

Schaumburg, IL - PI (Physik Instrumente), a leader in precision motion control solutions, will show its latest rotary air bearing stage series at this year’s LAM/LME (Laser Additive Manufacturing / Laser’s for Manufacturing Event) show on March 27/8 in the Schaumburg Convention Center. PI’s new A-635/A-637 PIglide low-profile stages have no rolling or sliding elements and deliver frictionless, non-contact motion, resulting in negligible reversal error, better wobble, eccentricity and velocity stability – ideal prerequisites for high-end industrial applications such as inspection, metrology, calibration, and scanning, including cleanroom environments.

The PIglide RL rotary stages offer superior accuracy, flatness, and wobble performance. Featuring 3-phase, low-cogging slotless torque motors with velocity to 500rpm and optical encoders, these stages provide outstanding performance such as 0.0015µrad resolution ±2µrad bidirectional repeatability and absolute accuracy of ±6µrad (with error compensation and ACS motion controller). Geometric performance is also excellent with 50nm flatness, ±50nm radial runout and 1µrad wobble. Available in 2 motion platform diameter sizes of 200 or 300mm, various options can be combined to create a solution ideal for point-to-point indexing or constant velocity scanning. These rotary positioners have a virtually unlimited life, there are no parts that wear or require maintenance.

PI designs and manufactures all air bearing products in the USA. PI’s engineering team has more than 200 man years of air bearing design experience. In addition to customized systems for OEMs, PI offers a substantial standard product line of air bearing stages that includes motorized and non-motorized, linear, rotary, spherical, X/XY, voice coil, compact, and large scale systems, as a complement to the existing comprehensive range of piezo nano positioning stages, traditional motorized positioners and hexapod 6-axis parallel positioning systems. The addition of air bearing technology puts PI in the unique position to cover the whole motion range from finger-tip sized nano-positioners to large scale stages with long travel ranges, through a plethora of different drives and guiding systems that can be tailored to meet the needs of an OEM or customer.

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 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 hydrostatic rotary tables from ZOLLERN impress with their durability and a high concentricity and axial runout accuracy. Thanks to the ZOLLERN bearing clearance compensator, the optimal pocket pressure is set automatically and independently of production tolerances. The freedom from friction at low speeds prevents slip stick and therefore allows maximum positioning accuracy.

The rotary tables and trunnion drives of the EXPERT-TÜNKERS EDX series are precision indexer with fixed pitch and maximum torque. They are used for dynamic cycles of loads up to 20 tons. The drive takes place via an energy-efficient geared three-phase motor.

A characteristic of EDX Series rotary tables is the fact that the dial plate is continuously driven by two cam followers. In addition, this double meshing of the roller pins ensures virtually zero-backlash locking of the turntable plate in the operating position. Alternatively, this can be achieved by widening the zero position.

The indexing positions of the rotary table are defined in the motion profile specified in the indexing cam. Most common, partitions are 2-stop = 180°, 3-stop = 120° and 4-stop = 90°. Individual solutions are available on request.

Typical applications for EXPERT-TÜNKERS turntables are, for example, the change of work pieces in body shop welding systems, the insertion and removal of work piece carriers, or as a turntable for clocked work sequences in series production. The EDX Series of rotary tables are not only suitable for conventional use as rotary tables but also as trunnion drive units with a horizontal axis of rotation. These trunnion systems can provide several tooling’s for flexible production lines.

The EDX Series of rotary tables are not only suitable for conventional use as rotary tables but also as trunnion drive units with a horizontal axis of rotation. These trunnion systems can provide several toolings for flexible productionlines.

According to Newtonian law F = ma, the force is proportional to mass and acceleration. As long as the force can overcome the friction force, a heavy mass can therefore be moved with a relatively small force, except that the acceleration of this mass is low. For example, an AUM2-S2 engine with a peak force of 88 N can move a load of 10 kg with a maximum acceleration of 8.8 m/s ² when moving horizontally.

There is no theoretical limit to the speed of a linear engine because there is no contact. However, speed is typically limited by the mechanical bearings. For example, the maximum speed for linear control systems with rails and guide cars is usually limited to 5m/s. Therefore, the speed for linear motors in most applications is limited to 5m/s. The use of ceramic ball bearings allows speeds of up to 10m/s. By using air bearings, higher speeds can also be possible.

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.

According to Newtonian law F = ma, the force is proportional to mass and acceleration. As long as the force can overcome the friction force, a heavy mass can therefore be moved with a relatively small force, except that the acceleration of this mass is low. For example, an AUM2-S2 engine with a peak force of 88 N can move a load of 10 kg with a maximum acceleration of 8.8 m/s ² when moving horizontally.

There is no theoretical limit to the speed of a linear engine because there is no contact. However, speed is typically limited by the mechanical bearings. For example, the maximum speed for linear control systems with rails and guide cars is usually limited to 5m/s. Therefore, the speed for linear motors in most applications is limited to 5m/s. The use of ceramic ball bearings allows speeds of up to 10m/s. By using air bearings, higher speeds can also be possible.

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.

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.

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.

This Hexapod provides 6 degrees of freedom: rotation around 3 axes and 3 linear motions in one compact, vacuum-compatible package. It can handle loads up to 11 lbs (5kg) and move at velocities to 10 mm/sec. The combination of linear motion and rotation angles of 20� around the X and Y axis and up to 40� around the vertical axis allows for complex motion profiles with particularly flexible placement of the load - a great advantage in restricted areas (such as beam lines) and small vacuum chambers.

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.

Ultra-slow motion animation of the PILine� ultrasonic piezo motor. The ceramic tip (pusher) is moving on an pseudo-elliptical trajectory. In reality the tip only moves a few nanometers at frequencies to 100"s of kHz.

Lower costs by using the rotary table bearing FMB. The compact designed FMB table bearing has been developed for high precision rotary motion. It reduces the cost compared to other rotary bearings since fewer components with less tolerance are used necessary for installation offering easy installation of the bearings and reducing the overall costs.

The turntable bearing can handle axial, radial, and a combination of loads. The main advantages of this bearing are the low height, easy mounting, and high precision run-out.

The super-precision balls move on highly accurate finished ways. The balls have 4 points of contact per ball offering very low, uniform, and smooth friction. As the bearings are preloaded by delivery they move with very high precision and repeatability. Values starting at 10 microns down to 1 micron can be achieved and wobble from 6 µrad down to 2 µrad.

FMB turntable bearings include attachment holes to a standard configuration to attach the bearing fast and easy. The countersunk treaded holes can be used from attachment from the top and attachment from the bottom side.

A great advance compared to other turntable designs is the compact design with just 8 mm in height. It replaces bearings from other manufacturers while using double contact bearings. This results in space savings and makes the FMB the bearing of choice for major OEM customers.

Based on the groove geometry, specially designed raceways offer a greater contact surface for the bearing balls. This allows high rigidity, load ratings, and precise running. The smallest turntable bearing with an outside diameter of 140 mm offers a dynamic load rating of 6.070N and increased to 20kN for the largest bearing. The turntable bearings are preloaded before delivery by geometric matching and do not need readjustment.

The precision turntable bearing is available in sizes starting from an outside diameter of 120 to 350 mm. The inner bores start at 40 mm with a thickness of 8.5 mm and go up to 250 mm with a thickness of 12.5 mm.

Due that the turntable combines the advantages of low height, compact size, easy installation with a high running precision they are used in modern applications. Just to name a few: