Lithium battery and electric vehicle production lines are characterized by high throughput, strict quality control, and rapidly evolving process requirements. From electrode manufacturing to battery module and pack assembly, production equipment must deliver high precision, repeatability, and operational stability under continuous operation.

In this context, the Hollow Rotary Table has become a key automation component, offering precise rotary motion, compact integration, and reliable cable management. Its ability to support complex processes makes it especially suitable for modern lithium battery and EV production lines.

Automation Challenges in Lithium Battery and EV Production Lines

Battery and EV manufacturing equipment faces a combination of mechanical, electrical, and process-related challenges, including:

High-precision positioning for electrode alignment and cell assembly

Frequent start-stop motion in indexing and transfer stations

Integration of sensors, vision systems, and power lines

Limited space within modular production units

Long production cycles requiring stable and durable components

Traditional rotary mechanisms often struggle to meet these demands simultaneously, especially in high-speed and high-accuracy applications.

Why Hollow Rotary Tables Are Widely Used in Battery Manufacturing Equipment

High Torque Output and Positioning Accuracy

Hollow rotary tables are designed to deliver high torque with precise angular control, enabling stable rotation even under heavy loads. This is critical in battery production processes such as cell stacking, tab welding, and module assembly, where precise positioning directly impacts product quality and consistency.

Their low-backlash design ensures accurate indexing and repeatable positioning across long production runs.

Central Hollow Shaft for Integrated System Design

One of the defining features of a hollow rotary table is its large central hollow shaft, which allows power cables, pneumatic lines, vacuum tubing, and sensor wiring to pass directly through the rotation axis.

In lithium battery production lines, this design simplifies the integration of welding heads, inspection cameras, and safety sensors, while reducing external cable movement and minimizing maintenance risks.

Compact Structure for Modular Production Lines

Modern EV and battery production lines emphasize modular and scalable equipment design. Hollow rotary tables integrate motors, reducers, and bearings into a single compact unit, allowing easy integration into automated stations with minimal footprint.

This compact structure supports flexible line layouts and simplifies future production line expansion.

Typical Applications in Lithium Battery and EV Production

Cell Assembly and Stacking Systems

In prismatic and pouch cell assembly processes, hollow rotary tables are used to rotate fixtures and positioning platforms with high accuracy. This ensures precise layer alignment during stacking operations and improves overall assembly quality.

Welding and Joining Stations

Battery module and pack assembly involve extensive welding and joining operations. Hollow rotary tables provide stable rotation for workpieces, enabling consistent welding angles and repeatable positioning throughout the process.

Inspection and Quality Control Equipment

Vision inspection systems in battery production require smooth and repeatable rotation to inspect multiple surfaces of cells and modules. Hollow rotary tables deliver controlled rotary motion, improving inspection accuracy and reducing false detection rates.

Performance Advantages Under High-Load and High-Cycle Conditions

Stability During Continuous Operation

Battery and EV production lines often operate continuously with minimal downtime. Hollow rotary tables are engineered with high-rigidity structures and durable components, ensuring stable performance under long-term, high-cycle operation.

This reliability helps reduce unplanned downtime and maintenance costs.

Reduced Vibration and Improved Process Consistency

Vibration can negatively impact welding quality, alignment accuracy, and inspection results. Hollow rotary tables provide smooth motion and excellent load distribution, minimizing vibration and improving overall process consistency.

Key Selection Considerations for Battery and EV Applications

When selecting a hollow rotary table for lithium battery or EV production equipment, engineers should evaluate:

Rated torque and allowable moment load

Positioning accuracy and repeatability

Hollow bore diameter for cable and pipeline routing

Duty cycle and thermal performance

Compatibility with servo control systems

Choosing the right specifications ensures optimal performance and long-term system reliability.