torque motor rotary table in stock

HIWIN Corporation Torque Motor Rotary Tables (TMRT) use a direct-drive torque motor, built-in high-rigidity and high-precision bearings, absolute encoders and powerful brake system to ensure excellent acceleration capabilities and high precision uniform movements. HIWIN TMRTs are backlash-free, optimized for high torques, have robust dynamics and are highly adaptive to the most demanding of automation processes. Compared with the mechanical indexing table, TMRT has high speed and high torque characteristics, suitable for the needs of various machining equipment.

TJR provides torque motor rotary tables with excellent acceleration and deceleration capabilities. Our torque motor rotary tables are zero-backlash, extremely rigid, wear-free durability, have high dynamic accuracy, are suitable for a wide range of automated production machining.

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.

HIWIN Corporation, a provider in motion control and system technology, will feature families of precision motion control components this year at IMTS, with their Torque Motor Rotary Tables, (TMRT), as a highlight of their booth. IMTS will be held September 12-17, 2022, in Chicago.

Designed for machine tool OEMs and retrofitters, the TMRT series enables 3-axis machine tools to be readily upgraded to 3+1, 3+2, 4+1, or even 5-axis capability. High speed, high torque, built-in high-rigidity high-precision bearings, absolute encoders, and a powerful brake system ensure excellent acceleration capabilities and high precision when machining complex part geometries.

HIWIN’s TMRT series rotary tables incorporate direct-drive torque motors.  This innovative design eliminates any gear reducers, resulting in the highest dynamic performance and multi-axis path accuracy.  Directly coupled encoders and zero backlashes enable tighter part tolerance.  Direct drives provide smooth motion, resulting in an improved part surface finish.

HIWIN Torque Motor Rotary Tables utilize HIWIN’s torque motor components, which are also available for engineers who prefer to design and build a unique table.

Ensure that your servo drive can handle the Nominal- and Peakcurrent of the Motor. An adjustment of the Speed and DC Bus Voltage can be done after consultation. The nominal data in this datasheet are based on an ambient/coolant temperature of 20°C.

Because the exact duty type depends also on the thermal connection of the motor, the embedded thermal monitoring system has to be analysed and attented. However, attention has to be payed that the temperature sensors do not show the exact temperature of the winding and this could be up to 20 K higher due to thermal capacities. Despite an electrical insulation towards the winding, you are only allowed to connect the sensors to your controller by using a galvanic separation in between.

Sherline has taken their accurate and reliable 4″ rotary table into the 21st century with the addition of Computer Numeric Control. Clock-makers or anyone with a need to cut gears or other complicated radially symmetrical patterns will find this accessory takes all the headaches out of repetitive indexing operations.

The rotary table comes with clamps and T-nuts for attaching it to the T-slots of a Sherline mill table. In addition, there are two options available for mounting the table in the vertical position or at other angles:

Right-Angle Attachment—This plate holds the table in the vertical position with a center height of 2.7″. A right-angle tailstock is also available to support long stock held on center in the rotary table.

Tilting-Angle Table—This table holds the rotary table and can be fixed at any angle from 0° to 90°. In the 90° position, the rotary table center is also at the 2.7″ height, which allows the right-angle tailstock to be used with it.

After entering the number of steps per revolution (or the number of degrees per step) on a simple numeric keypad, the table advances quickly and precisely to the next position at the touch of a single advance key. If an error is made, previous positions can be accurately recalled by hitting another button. Basic resolution is 28,800 steps per revolution, ±0.006° per step. This allows the accurate machining of items like gears with odd numbers of teeth. Computations are made internally to a high degree of accuracy to avoid cumulative errors.

This is a modification of our 4″ CNC Rotary Table with Stepper Motor. This modification came about after requests from our laser engraving customers. They wanted a rotary table that had a larger through hole to which you could mount our chucks.

This version of the Sherline rotary table has a Nickel-Teflon plating on it because it was designed to be used in an every-day production environment. This gives the table a rust resistant surface that is hard and has added lubrication qualities.

The table is 2″ high and 4″ (100mm) in diameter. The main components have been machined from solid bar stock steel, and the complete unit weighs seven pounds. The table has been engraved with a laser, giving sharp and precise lines every 5°, numbered every 15°. These lines are calibrated with the 72-tooth worm gear that is driven by the handwheel or stepper motor. The handwheel is divided into 50 parts, making each line on the handwheel 1/10°. This allows a circle to be divided into 3600 increments without interpolation. Seventy-two revolutions of the handwheel rotate the table one revolution.

The maximum instantaneous holding torque and maximum continuous holding torque are the values used by Kitagawa QUINTE controller, and the those values differ when using for the 4th axis.

When wishing to shorten the tact time, it is effective to hold only by the motor torque without using the mechanical brake. At that time, the clamp torques shall be the maximum continuous holding torque.

When the mechanical brake is not used, the stop position is not held when the power is turned off or when the servo alarm occurs. The table may rotate at startup and restart.

Reduction gear not require. Employs a high torque motor for high transmission efficiency. Allows for adopting oil chiller.(Vertical & Horizontal applications)

IEF rotating units of the DT series comprise of stainless steel and aluminium. They are available in many different designs. The rotary tables DT 80/100 or DT 100/140 are designed for motor-powered operation. They work with a high-quality screw gear, with a reverse play which can be minimised by supply of the screw wheel. The hollow shaft gives the constructor additional space for putting hoses and cables.

Corresponding motor flanges incl. pluggable coupling systems are available for attachement of step or servo drives. A pluggable reference point switch is used for motors with a resolver system.

Boasting a 1300 mm footprint, the TO1300 suddenly makes larger scale applications possible that previously seemed out of reach− as current direct-drive tables are relatively small and limited to a diameter of 750 mm. Additionally the TO1300’s high-tech drive operates predominantly without mechanics or gearboxes.

With over ten years of expertise in the field of direct drive torque motors, WEISS often designs and develops out of the logical response to changing market requirements and customer demand. This was the case with the TO1300 as a client’s concrete custom requirements stipulated a high mass inertia of 160 kgm2 and a large index increment of 45° with fast cycles−namely an index time of 0.21 seconds with a dwell time of 0.29 seconds.

For challenging tasks of this nature, a mechanical heavy duty table is typically the logical choice. Due to their gearing ratio, however, these tables don’t fare well in service life calculations for use at such high speeds as the needle bearings simply suffer from too much wear.

The correct alternative is a direct drive; which inspired the development of the TO1300. With a direct drive, only one bearing is under load which is virtually free of backlash. The table is low-wear and easily capable of delivering the desired dynamic performance requirements.

Unique to the TO1300 is that customers can customize it to their individual requirements. For example; they can make a modular selection between bearings, encoder and motor, and thereby alter the following table characteristics:

A specialist in automation, WEISS also offers many sizes for the TO series direct-drive rotary indexing tables; ranging from small to very large. Optimal solutions for specific application challenges can be achieved from the series wide range of options. Each TO model is also available in a version with a cleanroom certificate.

Corporate Profile: An integral part of the Weiss global network, Weiss North America (ISO-9001 Certified) leverages over 45 years of reliable world-wide expertise to comprise an integrative, customer-specific approach to its vast array of electromechanical products. Our 100% vertical range of manufacturing ranges from rotary indexing tables, handling systems, and linear assembly systems−providing flexible technology for turnkey solutions that incorporate electronics, mechanical systems, software, and comprehensive engineering support. This enables us to provide pre-installed, intelligent, and highly convenient solutions for the entire field of kinematics.

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Top Key Players of the Torque Motor Rotary Tables Market:Hiwin Corporation, Motor Power Company, Velmex, Tecnotion BV, PARKER, SMC Corporation of America, Kitagawa, FIBRO INC, Techsystem, Magtrol, Sherlineipd, Newmark Systems Incorporated, Sankyo Automation, ZOLLERN GmbH & Co. KG

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