Precise control solution, increasing efficiency for plastic bag cutting machine

The solution uses PLC, HMI, Servo programmable controllers and INVT inverters to ensure stable operation of the packaging machine, accurate cutting for even products at a speed of up to 130 pieces/minute. The solution helps users easily change the product speed and length to suit production needs.

The plastic bag cutting machine performs the final stage in the process chain to create finished plastic bag packaging, which is commonly used in today’s life.

The old-style operating method uses a VS motor to regulate the machine speed and other components (unloading, sealing, cutting, and spraying) are linked together through a mechanical transmission.


  • Low productivity and large product length error
  • Noisy operation, mechanical loss and energy consumption
  • It is difficult to change the machine speed and product length
  • Operating complex systems, requiring a lot of mechanical adjustment
  • Regularly check and maintain mechanics and engines


  • PLC PROGRAMMING handle all machine operations
  • HMI touch screen: allows users to easily monitor, operate, set speed, product length and other functions, etc.
  • Servo SV-DA200 for injection part: control injection shaft according to set length
  • GD200A/GD20: control the speed of the motors according to the machine speed


  • Easy to change machine speed as well as product length
  • The machine speed can be adjusted from 0 to 130 products/minute. The product length can be adjusted from 0 – 3000 mm, supporting line cutting.
  • System performance improved significantly, up to 30% better than the old system with a speed of up to 130 products/minute
  • The system operates smoothly and accurately to produce beautiful, high-quality products
  • Simple operation system, user-friendly interface
  • Protects the engine against mechanical shock thus reducing maintenance costs
Are you still hesitant, worried about efficiency?
Take a look at DAT's specialized solution design process.

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Products for solutions

GD20 - versatile, compact, easy-to-use open-loop inverter series with outstanding responsiveness for almost all applications.
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GD200A - inverter is designed for both heavy loads (constant torque – G load) and variable loads (fan pump – P load).
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PLC - IVC1L is a high-quality, easy-to-program PLC, widely applied with fast processing speed, strong communication ability.
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VT/VK series HMI - VT/VK Series HMI series is a Human interface -The machine is applied in the automation industry with many display modes, fast data processing speed, large capacity, and simple operation.
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