Hollow Rotary Platforms/Rotary Motion/

Inner Ring Rotating Hollow Rotary Tables

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Inner Ring Rotating Hollow Rotary Tables/Motorized Rotary Table from Tallman Robotics have Model HRN-230 for your specific applications. 


Model selection code of Inner Ring Rotating Hollow Rotary Tables/Motorized Rotary Table HRN-230

Motorized Rotary Table

Technical parameters of Inner Ring Rotating Hollow Rotary Tables/Motorized Rotary Table HRN-230 

Model No


Bearing structure

Cross roller bearing

Reduction Ratio (1)


Rated output torque(N.m)


Max output torque(N.m)

3 times rated torque

Positioning accuracy(arc-min)


Repeatability accuracy(arc-sec)


Allowable disk speed(rpm)

150 intermittent operation

Servo motor (w)


Allowable axial load (N)


Allowable radia load (N)


Moment torque(N.m²)


Torsion rigidity(N.m/arc min)


Overturning moment(N.m)


Accuracy life(h)

20000h Intermittent operation

Level protection(IP)


Lubrication method

Long term effective lubricant

Installation method


Concentricity of rotating platform(mm)


Parallelism of rotating platform(mm)


Transmission efficiency (%)


Noise (db)


Weight (kg)


Design load(kg)


Control MethodPLC control indexing angle and speed
Indexing AngleAny Angle
Servo MotorProtocol Support Options: PT Mode Pulse Input, PR Mode, RS-485, Analog Voltage Control, CANopen, DMCNET, EtherCAT,Encoder Type Options: Absolute Magnetic Optical Encoder, Incremental Magnetic Optical Encoder, Absolute Magnetic Encoder, Incremental Magnetic Encoder
Stepper MotorOpen Loop Stepper Motor, Closed Loop Stepper Motor / Step Servo Motor (Encoder)NEMA17, NEMA23, NEMA34,Control Mode Options: CANOpen, EtherCAT, EtherNet/IP, Modbus RTU, Modebus TCP, Q Program, SCL, eSCL, Pulse Control, Speed Mode, Analog Control
Communication Port Options: CANOpen, EtherCAT, EtherNet/IP, EtherNet, RS-232, RS-485, USB Mini
Driver and CableDriver and cable provided if Motor provided by Talman Robotics
Dial Plate / TurntableProvided if needed.(Drawing provided by clients)
SensorPhotoelectric sensor, bracket, sensor plate provided NPN, PNP options

Inner Ring Rotating Hollow Rotary Tables/Motorized Rotary Table:

Rotary Indexing Tables

Motorized Rotary Table,motor driven rotary table is driven by motor to realize the automation of angle adjustment. Finish machining worm gear or gear transmission, angle adjustment without limit. Precision shafting design ensures high precision and large bearing capacity; The stepper motor and transmission parts are connected through imported high-quality elastic coupling to eliminate space and machining form and position errors. The scale of the outer ring of the rotating table is intuitive; Standard interface to facilitate signal transmission; Manual handwheel configuration, electric and manual. Optional servo motor or stepping motor.

Common structural forms of Motorized Rotary Table mainly include the following:
Coaxial type: the motor shaft is concentric with the central shaft of the rotary table, which is a direct rotary platform
Side shaft type: the motor shaft is parallel to the central shaft of the rotary table, which is a side connected rotary platform
Right angle type: the motor shaft is perpendicular to the central axis of the rotary table, which is a side shaft rotary platform.  It is equipped with a closed-loop control platform to realize the real-time operation of the hollow stepping motor with a closed-loop feedback system.
Open loop stepping type: the combination of hollow rotating platform and special stepping motor with open-loop control system, which retains the practicability of stepping motor and improves the positioning accuracy of hollow rotating platform.
Angle structure: the birth of the angle structure hollow rotating platform makes the direction of the output end of the hollow rotating platform freely selected. At the same time, it has the integrated design of two-stage deceleration, so the torque can be improved.

Application scope of Motorized Rotary Table:
CNC indexing device, manipulator joint, the fourth machining axis of machine tool, military radar, automatic production line, laser marking, rotary chuck in engraving machine, rotary axis in precision alignment mechanism

Motorized Hollow Rotary Table: The Next Wave Of Precision Machining

With the rise of Industry 4.0 and the need for ever-more precise and efficient manufacturing, companies are turning to tallman robotics and their innovative line of products, including the motorized hollow rotary table. This state-of-the-art piece of machinery is capable of achieving the highest levels of precision and accuracy, making it perfect for a wide range of applications.

But what sets the motorized hollow rotary table apart from other precision machining tools? Keep reading to find out!

What is a motorized hollow rotary table?

A motorized hollow rotary table is a device that uses automated precision machining processes to create accurate and intricate parts. It works by automating the mechanically driven processes that would otherwise need to be done by hand. This can be done with the use of CNC (Computer Numerical Control), integrated motors, and advanced sensing systems. A hollow rotary table contains a ring with several fixed points circling a central point. As the table spins, parts can be safely secured and moved in any direction, allowing for more complex designs to be produced. This is done using continual repeatability, meaning that the same piece of precision machined parts can be produced over and over again with extreme accuracy.

The advantages of using a motorized hollow rotary table

Using a motorized hollow rotary table has several advantages. First, motor driven rotary tablet is highly accurate and repeatable, meaning that once a setting or template is established, it can reliably generate parts that perfectly match the originals. This makes it ideal for applications that require exact parts, such as surgical instruments or the creation of complex models. In addition, motor driven rotary table allows for faster production time. Automated production requires less manual labor and thus fewer working hours. This results in greater efficiency and cost savings in the long run. It also allows for higher quality production as certain machines can monitor the cutting and milling process and provide feedback in order to ensure that parts are accurate and up to standard.

How a motorized hollow rotary table can improve precision machining

By using a motorized hollow rotary table, precision machining can be improved in a number of ways. It eliminates the need to use manual machining processes which can introduce inaccuracies due to human error. Additionally, this improved accuracy and repeatability allows manufacturers to produce parts with greater precision and efficiency. Moreover, the motorized hollow rotary table has the capability to create complex profiles that would otherwise be difficult to achieve by hand. This includes shapes such as helices, splines, and even free-form curves. This opens up new possibilities for designers to develop parts that would have been unlikely to have been achievable using manual machining.

The future of motorized hollow rotary tables

As Industry 4.0 gains more and more traction, the need for accurate and efficient precision machining will only continue to grow. Motor driven rotary table is poised to play a vital role in the future of precision machining and it’s clear that its use will be far-reaching. In the near future, we can expect to see an ever-growing list of applications for this device. Whether it’s medical instruments, aerospace components, or plastic parts for consumer goods, the motorized hollow rotary table will be central to the production of these items. And as technology advances and become more and more sophisticated, motorized hollow rotary tables will likely become smaller, more powerful, and more precise. We may even see the integration of other production systems such as 3D printing and laser cutting into the same device. The potential of the motorized hollow rotary table has yet to be fully explored and one can only imagine the possibilities the future holds.


The motorized hollow rotary table is a revolutionary device that has revolutionized the world of precision machining. Motor driven rotary table is highly accurate, repeatable, and capable of achieving shapes not capable through manual processes. As technology advances and more automation is implemented, the role of the motorized hollow rotary table will only become more important and promising. What the future holds for this device is nothing short of exciting.

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