Custom Waterproof Resealable Bag Making Machine Project

This was a client with extremely high requirements.

He approached us, hoping we could customize a Waterproof Zipper Bag Making Machine for him. It not only needed to produce waterproof zipper bags, but also to meet their high internal standards in operational safety, functional flexibility, and control systems.

From the outset, we realized this was no ordinary machine. The client had many specific needs:

A protective cover was needed for the zipper assembly to ensure operational safety;

Custom buttons were needed on the control panel to switch between different production modes;

The entire machine's interface could be switched to the local language based on their language system for ease of operation.

Each requirement meant redesign and re-tuning, which was a real challenge for our engineering team.

During the debugging process, new problems arose one after another. Uneven film tension and unstable printing registration caused the photoelectric tracking system to frequently malfunction and fail to correctly identify color mark signals. Misalignment between the ultrasonic welding points and the cutter also affected the waterproof performance of the products.

Instead of simply blaming the materials, we re-examined the entire system. After multiple discussions and tests, we decided to add an independent photoelectric tracking system to the existing system and recalibrate the sensing sensitivity and delay control. This ensures accurate identification of the film regardless of tension or printing errors. Simultaneously, we optimized the synchronization logic of the ultrasonic welding and cutting blades, ensuring perfect alignment of the cut and weld points, restoring stable waterproof performance.

In addition to the photoelectric system, we also comprehensively upgraded the machine to suit the customer's operating environment:

We externalized all air hoses and cables for easier cleaning and maintenance;

We added yellow protective covers and stronger red springs to critical components to improve safety;

We added an independent safety switch between the light curtain and the ultrasonic system to enhance operational reliability;

We also added a three-language interface (Chinese/English and the customer's language) to the software for multinational teams.

After multiple rounds of trial runs and video verification, the customer's machine successfully passed testing. The machine operates smoothly, production capacity increased by more than 15%, and the waterproof bag finished product qualification rate reached 99.3%. The client was extremely satisfied, saying, "XinXin's team isn't just selling machines; they're genuinely helping us solve problems."

They included this equipment in their long-term mass production plan and invited us to participate in the next phase of their automation transformation project.

This project reaffirmed for us that true manufacturing is not just about building machines, but about building solutions.

From photoelectric recognition to ultrasonic control, from language systems to safety protection, every detail reflects the professionalism, patience, and creativity of the XinXin team.

We not only delivered a machine, but also earned the client's trust.