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Hollow Shaft Reducers are precision electromechanical devices with a central through-bore that reduces speed and increases torque while enabling the passage of cables, fluids, or drive shafts directly through its center. Its defining feature is a large-diameter hollow output shaft, allowing utilities to be routed internally to simplify system architecture and reduce external clutter.

Technical configuration of TallMan Robotics Hollow Shaft Reducers

Hollow Shaft Rotary Tables, also known as,Hollow Shaft Rotary Tables, hollow bore gearboxes, are a type of speed reducer that features a hollow input shaft. This design of Hollow Shaft Rotary Indexers allows the input shaft to be mounted directly over a larger shaft or other component, providing a compact and efficient power transmission solution.

Presented below is a chart of Rotary Actuators with corresponding photos,full technical specifications,videos of test.

Model Selection code of Hollow Rotary Actuators:

Heavy Duty Hollow Rotary TableHeavy Duty Hollow Rotary TableHeavy Duty Hollow Rotary TableHeavy Duty Hollow Rotary TableHeavy Duty Hollow Rotary Table

Technical parameters of Cam Roller Hollow Rotary Platforms:

Series

CAM roller type hollow rotating platforms

Model

TMW68

TMW90

TMW115

TMW215

TMW315

TMW415

Photo

Hollow Shaft ReducersHollow Shaft ReducersHollow Shaft ReducersCam Roller Hollow Rotary TablesCam Roller Hollow Rotary Tables

Hollow Shaft Reducers

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

 -  - 25 -  - 25 -  - 25 -  - 25 -  - 25

 -  - 25

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

Options

Driver and Cable

Driver and cable provided if Motor provided by Tallman Robotics Limited (Usually, we configure Delta, Inovance )

Face rotating Plate

Provided if needed.(Drawing provided by the clients)

Sensors

Photoelectric sensor, brackets, sensor plates, screws are for options.

Production of Cam Roller Hollow Rotary Tables:

Hollow Shaft Reducers

Hollow Shaft Reducers

Hollow Shaft Reducers

FAQs about Hollow Shaft Reducers

  • What is a hollow shaft reducer?

       A hollow shaft reducer decreases rotational speed and increases output torque through internal gears. The center bore allows cables, shafts, or pneumatic tubes to pass through the reducer body. This structure saves installation space and simplifies rotary system design. Many automation machines use hollow shaft reducers for compact assembly and precise motion control.

  • Where do industries use hollow shaft reducers?

       Industries use hollow shaft reducers in robotics, rotary tables, semiconductor machines, medical systems, packaging lines, and automated assembly equipment. The hollow center supports integrated wiring and rotating connections. This feature improves machine layout and reduces external cable interference.

  • What gear types do hollow shaft reducers use?

        Manufacturers produce hollow shaft reducers with planetary gears, harmonic gears, cycloidal drives, and worm gears. Each design supports different torque levels, accuracy grades, and speed ranges. Planetary reducers suit high torque systems, while harmonic reducers support high precision motion.

  • Can hollow shaft reducers connect directly to servo motors?

Yes. Many hollow shaft reducers support direct servo motor mounting. Manufacturers design standardized flanges and coupling interfaces for easy integration. Direct mounting improves transmission efficiency and reduces assembly complexity.

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

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