direct drive rotary table factory

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.

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.

High Performance in a Compact Package Parkers Direct Drive Rotary Stage, featuring an integral brushless DC servomotor, has several distinct advantages over traditional worm gear-driven stages. The elimination of the worm gearing offers the ability to reduce wear with zero backlash while exhibiting near frictionless motion. Its high positioning accuracy, solely based on the stages encoder, provides repeatability within + 2 encoder counts, with resolutions ranging to 1.4 arc seconds. The RD Direct Drive features speeds up to 700 RPM with significant torque capability

The AD-Series is TJR’s Direct Drive rotary table that is offered in multiple sizes. The sizes range from 170mm (6.69”) to 260mm (10.23”) face plate diameter.

These units truly have zero backlash during rotation in either direction. In addition there is zero wear do to the design of the units, which ensures long-lasting high precision accuracy. They are also capable of high speed rotation 100-200 rpms with high rate of acceleration. The AD- Series direct drive rotary table also uses the powerful pneumatic braking system that is employed in the AR-Series.

The mechanical performance, together with the special bearings used and the high resolution direct measurement system allow high accuracy and high rotational speeds.

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.

Tsudakoma’s new RDS series of direct-drive rotary tables, available from Koma Precision, promotes high speed and acceleration with reduced backlash. The RDS-200 model is a compact, single-axis, 150-rpm, direct-drive rotary table with an indexing accuracy of ±10 arcseconds and a pneumatic braking system. Various options such as rotary joints, chucks, tailstocks, support spindles and face plates are available. The RDS-200 can be integrated with machine tools that feature FANUC or Mitsubishi controls. This series features a slim, low-profile build for use in mass production and high-speed indexing operations in the automotive, medical and computer/electronic manufacturing industries.

Generally, this device style would be mounted on a sufficiently large machine tool that there will not be an issue due to the width of the unit, such as collision with machine doors with Y-axis travel. In selecting a side mount motor version you should always consider the Y-axis travel of the machine and if there would be any interference between the guard of the rotary table and the doors of the machine, particularly when referencing the machine as a lot of VMC machines reference with the Y-axis travelling to the front of the machine, towards the operator. This is an ideal design of product for use with any machine tool, particularly those with a good working envelope. The design is versatile as it can be used in either plane. Due to the carrying capacity, however, if you have a larger machine tool and are doing lighter work you could mount this device on a raiser block and swing larger diameters than its standard design suggests.

The NEW ZEATZ DD-210 high-speed rotary table, works as a conventional CNC rotary table with 360,000 positions possible, but can index at up to 200rpm, (subject to indexing a sufficient distance to being able to reach maximum speed) saves so much machining time and does away with gears that may wear over time or suffer collision damage. What is the downside you may ask, with direct drive? Only the torque available through contour milling at slow speeds, as a rotary table it has optimum performance with the benefit of direct axis measurement included. This unit has a 200 diameter faceplate, 40mm through hole and a Renishaw ring type direct measurement encoder giving premium accuracy of position. This device can be used with Fanuc, Siemens, Yaskawa, Sanyo Denki, Mitsubishi, Heidenhain, Okuma. Please specify when ordering. Can be used in conjunction with the ZEATZ ABT-160HS bearing tailstock to offer a high-speed trunnion system (not included).

The versatile 900 series direct drive rotary tables are particularly suitable for HSC milling, mill-turn machining, modern hobbing (power skiving) or even demanding grinding operations. This transforms a simple and cost-effective 3-axis milling center into a fully automatable, multi-functional 5-axis machine. The housing of the 900 DD series is fully sealed to IP 67 and even rotations of well over 2,000 rpm are no problem. A specially developed Fail Safe system brakes the spindle to 0 within a very short time (e.g. With an emergency stop or power failure) without damaging the rotary table.

There is no mechanical reduction mechanism such as a worm system in a rotary table with a DD motor. DD (Direct Drive) motor is built in the rotary table to drive directly. The compact two-axis direct drive rotary table enables rapid acceleration/deceleration and high-speed rotation. Its biggest advantage is the super high speed up to 2000 rpm. Thus, it can work as a mill/turn component. As a result of the lack of a mechanical reduction mechanism, the driving torque of the rotary table is not strong. It is necessary to choose an application for the rotary table with a DD motor.

A high torque motor drives the direct drive rotary table directly. There is no backlash or abrasion generated during rotation because it is not driven by worms and gears. Typically, these rotary tables are used in applications requiring high accelerations and decelerations, such as blade machining. For high-speed drilling centers with very important indexing times, a two-axis direct drive rotary table is an excellent choice.

The requirements for rotary positioning are diverse. For high-precision, dynamic positioning, ITK offers the FRS200 rotary table with direct drive and many advantages for the user.

The extremely flat FRS200 stands out among the rotary tables because it meets very high requirements for axial runout, concentricity, repeatability and overall height. With an overall height of only 28 mm, a diameter of 200 mm and an accuracy of less than 10 µm, it is among the absolute top class on the market. The rotary table also benefits from a large central hollow shaft with a diameter of 50 mm for feeding through cables, connectors, spindles, vacuum, etc., which significantly increases the degree of integration on the application side. The integrated measuring system with reference marks allows the recurring and very precise location of a dedicated position within the 360° motion sequence at any time with repeat accuracies of ± 1 arcsec. Very good axial and radial run-out characteristics as well as a high positioning accuracy enable the very precise movements. ITK"s in-house developed controls are optimally matched to the FRS200 and are an essential part of the mechatronic assembly to exploit the full performance potential. The patented technology also ensures good heat dissipation.

The FRS200 rotary table is intended for applications in the optical industry for measuring and bonding lenses, in measuring machines of all kinds, wire bonding machines or in the semiconductor industry in inspection systems for testing wafers.

Rotary tables are used for perfection metalworking. They"re generally made with a solid base that can be clamped on to another institution. The table is a slice that rotates freely or by use of a worm( hand coil).

A rotary table is a slice- shaped metalworking device used to gain precise workpiece positioning. It enables a metalworker to cut or drill a workpiece at precise intervals around a vertically or horizontally fixed axis. A rotary table can be both manually or computer numerical controlled. Certain types of rotary tables are designed to be used with indexing plates or dividing plates for technical operations. A rotary table used together with one of these positioning plates is generally appertained to as a dividing or indexing head.

The rotary table device generally has a solid base that can be attached to a separate institution or table using clamps. This device is principally a rotating slice which holds the workpiece in place during slice or drilling operations. The slice portion of a rotary table can be freely rotated for indexing procedures or turned by an attached control arm known as a worm wheel. Tables used in high perfection operations are generally turned by a duplex- type worm wheel to compensate for counterreaction. Rotary tables used in automated essence working processes are turned by computer numerical controlled ministry.

Rotary tables are most frequently used in a flat position with the table’s axis having a perpendicular exposure. They"re occasionally mounted with the axis acquainted in a vertical fashion so that a tailstock can be used to support the free end of the workpiece. When this device is attached to a secondary table, the workpiece can be centered on the rotary table’s axis which is also centered on the slice tool’s axis. In this configuration, the axes of the rotary table, secondary table, and cutting tool are coextensive to grease concentric slice operations. This configuration also permits the secondary table to be neutralize for drilling equidistant holes in a workpiece.