Hollow Rotary Tables,Cam Indexers,Planetary Gear Reducers 
Cam Roller Hollow Rotary Tables are a type of rotary table mechanism that utilizes a cam and roller design to achieve precise, intermittent rotary motion.
A cam roller hollow rotary table uses a preloaded cam mechanism with precision needle rollers to convert continuous motor rotation into indexed or oscillating motion. The hollow central bore allows passage of cables, air lines, or lasers. Zero-backlash operation comes from conjugate cam profiles maintaining constant roller engagement. Rigid housing integrates crossed roller bearings for high moment load capacity. Servo or stepper drive provides accurate positioning without a separate brake.
Engineering description of TechMan Automation Cam Roller Hollow Rotary Tables
Cam roller hollow rotary tables are precision indexing mechanisms that convert continuous input rotation into intermittent, high-accuracy output motion through a conjugate cam and roller follower system. The cam profile drives preloaded rollers to achieve zero backlash, smooth acceleration, and controlled dwell periods. A hollow shaft structure allows cable routing, pneumatic lines, or optical channels through the center without external interference.
Below is a structured table of planetary speed reducers with images,specification data,video of test, packing for delivery.
Photos of Cam Roller Hollow Rotary Tables in production
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Model Selection code of Cam Roller Hollow Rotary Tables:
Technical parameters of Cam Roller Hollow Rotary Tables:
Series | CAM roller type hollow rotating platform | |||||
Model | TMW68 | TMW90 | TMW 115 | TMW215 | TMW315 | TMW415 |
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Design load (kgs) | ≤80kgs | ≤280 kgs | ≤500kgs | ≤1600 kgs | ≤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 |
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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 | 24kgs | 45kgs | 120kgs | 200kgs | 300kgs |
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. |
Video of test before delivery
FAQs about Cam Roller Hollow Rotary Tables
What defines a cam roller hollow rotary table?
A cam drives multiple rollers to create indexed rotation. The hollow shaft allows internal routing. The structure ensures high rigidity and repeatable positioning.
How does the cam profile control motion?
The cam profile defines acceleration, dwell, and indexing angles. Engineers design it for smooth motion and minimal impact.
Why use a hollow shaft design for Cam Roller Hollow Rotary Platforms?
A hollow shaft routes cables, air lines, or sensors through the center. It removes external interference and simplifies layout.
Do Cam Roller Hollow Rotary Platforms need a separate brake?
No, the cam mechanism holds position without additional braking devices.
Is backlash adjustable after wear of the Cam Roller Hollow Rotary Platforms?
No, the design removes backlash through preload, not user adjustments.
You are welcome to watch more projects or visit our website to check other series or load down e-catalogues for further technical data.
