Hollow Rotary Index Table

Hollow Rotary Index Table is a high-precision mechanical transmission device primarily used in automated industrial scenarios that require precise positioning and rotational indexing. Its core feature is the design of a hollow shaft at the center of the rotary table, which combines the functions of rotary drive, precise indexing, and hollow channels, and is widely used in automation assembly, inspection, processing, and other fields.

Core structure and functional characteristics of Hollow Rotary Index Table:

1. Hollow Shaft Structure

There is a circular through-hole at the center of the rotary table, with aperture ranging from a few millimeters to several tens of centimeters depending on the model. This structure allows cables, air tubes, conveyor belts, or other workpieces to pass through, avoiding pipeline entanglement, and is particularly suitable for scenarios where materials, signals, or fluids need to be transmitted during rotation (such as robot grasping, laser welding, automated inspection, etc.).

2. Accurate indexing function

Driven by servo motors, stepper motors, or reduction mechanisms, coupled with high-precision bearings (such as cross roller bearings) and positioning feedback devices (such as encoders), angle precise positioning is achieved (the indexing accuracy can usually reach ± 10 arc seconds to ± 1 arc minute). Support continuous rotation or step-by-step rotation with fixed angle intervals (such as 90 °, 60 °, etc.) to meet the requirements of "workstation switching" in automation processes.

3. High rigidity and load capacity

The tabletop and base are made of high-strength materials (such as aluminum alloy, cast iron), combined with precision bearing structures, which can withstand axial, radial, and overturning moment loads, ensuring stable rotational accuracy under high loads. They are suitable for placing workpieces, fixtures, or automated actuators.

4. Integrated Drive Control

Usually equipped with built-in or external drive motors and controllers, it supports communication with PLCs, robot systems, or automation platforms (such as Modbus, EtherCAT, and other protocols) to achieve programmable automation control and simplify equipment integration processes.

Hollow Rotary Index Table has difference from related equipment

Hollow Rotary Index Table focuses on "indexing positioning" and emphasizes precise switching of fixed angles. The hollow structure is more prominent and suitable for workstation automation scenarios.

Hollow Shaft Rotary Actuator focuses more on "continuous rotary drive", with a larger output torque and weaker indexing function, commonly used in scenarios that require rotational power transmission.

Precision Hollow Rotary Indexer belongs to the high-precision version of the "divider", with a more compact structure, higher indexing accuracy (usually up to arc seconds), and relatively smaller load capacity.

Here In this page, we introduce series of Hollow Rotary Index Table TMN280, you will see data sheet, production pictures,vedios of test as follows:

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Packing and delivery of Hollow Rotary Index Table:

Production of Hollow Rotary Index Table:

Typical application scenarios of Hollow Rotary Index Table

1).Automated assembly line: In the assembly of electronic and automotive components, precise switching of workpieces between workstations such as "loading inspection assembly unloading" is achieved.

2).Precision Inspection: In conjunction with a visual inspection system, the workpiece is exposed from multiple angles by rotating the table, completing comprehensive quality inspection.

3).Laser processing/welding: Hollow channels pass through laser fibers, and the table drives the workpiece to rotate, achieving processes such as circular welding and circular engraving.

4).Robot Workstation: As the end effector or workbench of the robot, it realizes the rotation and positioning of workpieces, and cooperates with the robot to complete operations such as grasping and handling.

Key parameters for selection of Hollow Rotary Index Table

1).Hollow hole diameter: Select the appropriate through-hole diameter according to the requirements of threading and feeding.

2).Dividing accuracy: Determine the angle error range (such as ± 5 arc seconds) according to the process requirements.

3).Load capacity: including axial load, radial load, and overturning moment, to match the actual weight of the workpiece.

4).Table size: Select the table diameter based on the size of the workpiece (such as 100mm, 200mm, etc.).

5).Drive mode: servo motor (high precision) or stepper motor (low cost), and control interface compatibility.

Through these features,Hollow Rotary Index Table has become a core component for connecting automation equipment, simplifying pipeline layout, and improving positioning accuracy, widely serving the field of precision manufacturing.