Hollow Shaft Rotary Table

Hollow Shaft Rotary Table is a precision positioning device featuring a central aperture through the rotation axis, enabling pass-through capability for workpieces, cables, or fluid conduits. The hollow bore accommodates tooling, pneumatic lines, hydraulic connections, or electrical conductors without external routing constraints. Indexing mechanisms—including worm gears, stepper motors, or servo drives—enable precise angular increments or continuous rotation.

Technical profile of TallMan Robotics Hollow Shaft Rotary Table

Hollow shaft rotary indexers are a versatile and valuable tool in various industrial settings, enabling efficient and precise positioning and manipulation of workpieces during manufacturing and assembly processes.

The following chart lists Hollow Shaft Rotary Table with photos and comprehensive technical data.

Model Selection code of Cam Roller Hollow Shaft Rotary Tables:

Technical parameters of Cam Roller Hollow Shaft Rotary Tables:

Series	CAM roller Hollow Shaft Rotary Tables
Model	TMW68	TMW90	TMW115	TMW215	TMW315	TMW415
Photo
Design load (kgs)	≤80kgs	≤280kgs	≤500kgs	≤1600kgs	≤2.5Tons	≤4.5Tons
Max dia of rotating plate(mm)	≤ 500 mm	≤ 900 mm	≤ 1200mm	≤ 2000mm	≤ 2500mm	≤ 3000mm
Motor type	Planetary gear+Servo motor	Planetary gear+Servo motor	Planetary gear+Servo motor	Planetary gear+Servo motor	Planetary gear+Servo motor	Planetary gear+Servo motor
Motor in configuration	0.4kw/0.75kw	80 flange Servo	80/130 flange Servo	130/180 flange Servo	180 flange Servo	180 flange Servo
Reduction ratio of rotating body	1:20i	1:20i	1:20i	1:40i	1:60i	1:60i
Overturning moment	400 N.m	625N.m	1028N.m	3500N.m	14000 N.m	30000 N.m
Allowable input torque	≤30 Nm	≤72 Nm	≤90 Nm	≤500 Nm	≤500 Nm	≤500 Nm
Rated output torque	≤600 N.m	≤1440 N.m	≤1800 N.m	≤20000 N.m	≤30000 N.m	≤30000 N.m
Allowable moment of inertia	75N.m	220 N.m	260 N.m	18000 N.m
Allowable input speed	2000 R/min	2000 R/min	2000 R/min	1200 R/min	2000 R/min	2000 R/min
Repeat positioning accuracy	±5 arc-sec	±5 arc-sec	±5 arc-sec	±5 arc-sec	±5 arc-sec	±5 arc-sec
Positioning accuracy	±10 arc-sec	±10 arc-sec	±10 arc-sec	±10 arc-sec	±10 arc-sec	±10 arc-sec
Platform concentricity	0.02mm	0.02mm	0.02mm	0.02mm	0.02mm	0.02mm
Platform Parallelism	0.02mm	0.02mm	0.02mm	0.02mm	0.02mm	0.02mm
Accuracy life	20000 ( intermittent motion )
Structure type	Cam roller+cross roller bearing
Protection Grade	IP50	IP50	IP50	IP50	IP50	IP50
Weight (kg)	16kgs	24	45	120	200	300
Model	TMW500	TMW600	TMW800	TMW1100	TMW1300	TMW1900
Photo
Design load (kgs)	≤800kgs	≤2 Tons	≤ 4Tons	≤ 8Tons	≤ 15Tons	≤30 Tons
Diameter of Aperture (mm)	60 mm	100 mm	150mm	290mm	290mm	1100mm
Indexing Accuracy(Arc Min)	±15
Max Face Force/Fa(Nm)	70000	90000	120000	200000	240000	320000
Max Radial force/Fr(Nm)	35000	46000	70000	106000	120000	190000
Max Tilting Torque/Mk(Nm)	6500	21500	60000	96000	100000	175000
Max Tangential Torque/Ta(Nm)	1800	4000	8200	20500	24000	38000
Reduction Ratio (i)	Servo indexing: 20/40/60/100,can be customized; Mechanical indexing: 2/4/6/8/10/12/16/24 workstations
Motor in matching	Servo motor + reducer/ordinary reducer motor/four series of reducer motors
Weight (kg)	300kgs	420kgs	700kgs	1.35 Tons	1.5 Tons	2.0 Tons

FAQs about Hollow Shaft Rotary Table

• What is the maximum bore diameter available in hollow rotary actuator?

Standard hollow shaft bores range from 5 mm to 250 mm, with custom units exceeding 1000 mm. The bore diameter is limited by the bearing size and table outer diameter. A typical 200 mm outer diameter table may have a 50 mm bore. Larger bores reduce torsional stiffness and load capacity. For heavy-duty applications, we offer reinforced bearings (crossed roller or dual angular contact) to maintain rigidity despite a large central hole. 

• How does a direct-drive hollow rotary table differ from a worm gear version?

Direct-drive (torque motor) hollow shaft tables have no gears, offering zero backlash, high speed, and smooth motion at low speeds. Worm gear tables provide self-locking (holds position without brake), higher torque per size, and lower cost, but have backlash and lower speed. Choose direct-drive for precision contouring, laser scanning, or high-speed indexing. Choose worm gear for heavy vertical loads or applications requiring power-off holding. Direct-drive requires a brake for vertical holding.

• How do I integrate a hollow rotary actuator into a multi-axis CNC system?

Use the hollow bore to route cables for a 5th axis or a pneumatic chuck. Mount the table on a tilt axis (trunnion) with the bore aligned to the tilt centerline. Connect the table’s motor and encoder cables through the hollow bore of the tilt axis to avoid external loops. For control, configure the rotary axis as a slave in your CNC (A-axis or B-axis). Set the gear ratio (0:1 for worm gear) and encoder resolution in the drive. Perform a 3D calibration to compensate for any mechanical misalignment. Use the bore’s pass-through for workpiece clamping air lines.

• How do I seal a hollow rotary table in a dusty or washdown environment?

Use double-lip polyurethane seals on both sides of the hollow bore and around the outer perimeter. For IP65 (dust-tight and low-pressure water jets), single lip seals suffice. For IP67 (temporary immersion) or IP69K (high-pressure washdown), specify labyrinth seals with air purge ports. Connect an air supply to create positive pressure inside the table, preventing dust ingress. Without proper sealing, abrasive dust will quickly damage bearings and encoder.

You are welcome to watch more projects or visit our website to check other series or load down e-catalogues for further technical data. 

Youtube: https://www.youtube.com/@tallmanrobotics

Facebook: https://www.facebook.com/tallmanrobotics

Linkedin: https://www.linkedin.com/in/tallman-robotics