Ultrasonic non-woven bag handle production and attaching system – A-Z closed process

Optimizing the load-bearing structure of fabric bags

The bag handle is the highest stress point, but often the weakest part if manually made or fragmented across multiple workshops. Separating handle making from handle attaching creates major risks regarding durability, aesthetics, and product consistency.

Vietsonic Solution: Integrating the 2 stages of handle making and automatic handle attaching using ultrasonic technology into a closed production line, ensuring a monolithic, durable handle structure while optimizing operating costs.

Stage 1: Ultrasonic handle making

Objective: Transform raw fabric rolls into handle strips that meet technical standards for tensile strength and fatigue resistance.

Automatic edge folding: Folding 2-3 layers of PP fabric according to customer specifications, increasing handle thickness and resistance to stretching.

Ultrasonic edge welding: The ultrasonic welding head runs along both edges of the handle strap, bonding the fabric layers into a uniform, fray-free, and balanced strip.

Output parameters:

  • Customizable handle width from 2.5cm to 4cm, suitable for different load capacities.
  • Flat handles, consistent in shape and surface quality.

Non-woven bag handle production video:

https://www.youtube.com/watch?v=fV_qjQHeRo

Stage 2: Precision ultrasonic handle attaching

Objective: Securely bond ultrasonic handles to the finished bag body from the A-Z production stage.

Molecular bonding mechanism: Utilizing ultrasonic waves to create spot welds bonding the handle to the bag at the molecular level, ensuring durability and aesthetics.

Precision positioning:

  • Sensor system measures and adjusts the welding position with an error margin under 1mm.
  • Ensures handles are attached symmetrically and meet industrial aesthetic standards.

Actual load capacity:

  • Weld seams have a large area to distribute pulling force along the handle.
  • Completely eliminates the risk of handle base detachment when the bag carries heavy goods.

Vietsonic semi-automatic handle attaching machine

Strategic value in the full-package supply chain

Flexibility:

  • Allows flexible customization between handled bags and die-cut bags on the same standard bag blank.
  • Supports various designs and orders upon request.

B2B Cost Optimization:

  • Eliminates manual handle sewing labor costs.
  • Eliminates semi-finished product transportation costs between multiple workshops.
  • Minimizes management, maintenance costs, and delay risks caused by separating handle processing.

Contact VietSonic

If you are looking for a high-quality non-woven bag handle processing solution, contact VietSonic now for optimal consultation.