Extrusion Coating Machine Solution Using INCT Torque Motor


Application Overview

In lithium battery manufacturing, extrusion coating plays a critical role in determining electrode uniformity and overall production yield. As requirements for higher energy density and process consistency increase, coating machines must operate at high speed while maintaining precise coating accuracy and stable tension control.

This project focuses on an INCT torque motor–based solution for extrusion coating machines, supporting stable speed control, accurate thickness regulation, and reliable tension performance for battery electrode coating.

Engineering Challenges

⚙️ Speed fluctuation affecting coating uniformity

Unstable rotational speed can cause uneven slurry distribution, leading to thickness variation and reduced yield.

⚙️ Unstable tension during double-sided coating

Frequent switching between coating sides places high demands on tension stability across a wide operating range.

⚙️ System complexity and maintenance burden

Conventional drive solutions with mechanical transmission increase system complexity and long-term maintenance requirements.

INCT Solution

To address these challenges, INCT provided a direct-drive torque motor solution for extrusion coating applications.

The solution integrates:

👉 INCT Direct-Drive Torque Motor

Delivering stable rotational speed with speed fluctuation controlled below 0.3% at 80 rpm, supporting uniform slurry distribution.

👉 High-Resolution Feedback System

A 25-bit absolute encoder provides real-time position feedback, enabling coating thickness accuracy within ±1%.

👉 Stable Tension Control

Supports a wide tension range of 30–500 N, suitable for frequent double-sided coating processes.

👉 Direct-Drive Architecture

Eliminates gearboxes and mechanical transmission elements, simplifying system design and improving long-term reliability.

Key Results and Performance

The implemented INCT torque motor solution achieved the following performance outcomes:

🚀 Stable rotational speed with less than 0.3% fluctuation at 80 rpm

🚀 Coating thickness accuracy maintained within ±1%

🚀 Reliable tension control across 30–500 N operating range

🚀 Reduced system complexity through gearbox-free direct-drive design

Keys to Success

🎯 Direct-drive torque motor architecture

Removes mechanical transmission variability and improves speed and tension stability.

🎯 High-resolution feedback control

Accurate encoder feedback enables precise coating thickness regulation.

🎯 Application-oriented system design

The solution is optimized specifically for extrusion coating requirements in lithium battery production.

Typical Applications

• Extrusion coating machines for lithium battery electrodes

• Coating equipment for power battery manufacturing

• Energy storage battery electrode coating systems

Engineering Consultation

Looking to evaluate whether this solution fits your coating machine project?

🌐Contact the INCT engineering team for technical consultation.

Application Overview

In lithium battery manufacturing, extrusion coating plays a critical role in determining electrode uniformity and overall production yield. As requirements for higher energy density and process consistency increase, coating machines must operate at high speed while maintaining precise coating accuracy and stable tension control.

This project focuses on an INCT torque motor–based solution for extrusion coating machines, supporting stable speed control, accurate thickness regulation, and reliable tension performance for battery electrode coating.

Engineering Challenges

⚙️ Speed fluctuation affecting coating uniformity

Unstable rotational speed can cause uneven slurry distribution, leading to thickness variation and reduced yield.

⚙️ Unstable tension during double-sided coating

Frequent switching between coating sides places high demands on tension stability across a wide operating range.

⚙️ System complexity and maintenance burden

Conventional drive solutions with mechanical transmission increase system complexity and long-term maintenance requirements.

INCT Solution

To address these challenges, INCT provided a direct-drive torque motor solution for extrusion coating applications.

The solution integrates:

👉 INCT Direct-Drive Torque Motor

Delivering stable rotational speed with speed fluctuation controlled below 0.3% at 80 rpm, supporting uniform slurry distribution.

👉 High-Resolution Feedback System

A 25-bit absolute encoder provides real-time position feedback, enabling coating thickness accuracy within ±1%.

👉 Stable Tension Control

Supports a wide tension range of 30–500 N, suitable for frequent double-sided coating processes.

👉 Direct-Drive Architecture

Eliminates gearboxes and mechanical transmission elements, simplifying system design and improving long-term reliability.

Key Results and Performance

The implemented INCT torque motor solution achieved the following performance outcomes:

🚀 Stable rotational speed with less than 0.3% fluctuation at 80 rpm

🚀 Coating thickness accuracy maintained within ±1%

🚀 Reliable tension control across 30–500 N operating range

🚀 Reduced system complexity through gearbox-free direct-drive design

Keys to Success

🎯 Direct-drive torque motor architecture

Removes mechanical transmission variability and improves speed and tension stability.

🎯 High-resolution feedback control

Accurate encoder feedback enables precise coating thickness regulation.

🎯 Application-oriented system design

The solution is optimized specifically for extrusion coating requirements in lithium battery production.

Typical Applications

• Extrusion coating machines for lithium battery electrodes

• Coating equipment for power battery manufacturing

• Energy storage battery electrode coating systems

Engineering Consultation

Looking to evaluate whether this solution fits your coating machine project?

🌐Contact the INCT engineering team for technical consultation.