Several months ago, a client purchased a rotary blow molding machine from us for the production of dropper bottles. After the equipment arrived, I followed up on the installation and commissioning process to ensure the client could successfully start their production line. Initial operation went smoothly, and the client was satisfied with the machine's performance.
About a month later, the client contacted me, reporting problems with uneven wall thickness in the finished products and unstable mold heating, which affected production. This was the first time the client had encountered such problems, and they were very anxious to resume production as quickly as possible. As a salesperson, I realized that this not only affected the equipment's performance but also impacted the client's trust in us.
Upon receiving the feedback, I immediately contacted our company's after-sales engineers and coordinated a phone diagnostic session that same day. During the call, I assisted the engineers in conducting a comprehensive inspection of the machine, understanding the client's raw materials, operating procedures, and production batches. Through careful troubleshooting, we discovered that the problem stemmed from loose wiring in the mold heating system, leading to unstable temperatures and consequently affecting the uniformity of the bottle wall thickness.
After the repair was completed, I also demonstrated daily inspection and maintenance methods to the client via phone and explained the details to pay attention to during operation, helping them develop a preventative maintenance mindset. Throughout the entire process, I maintained communication with the client, keeping them informed of the progress and solutions, ensuring that the problem was resolved quickly and transparently.


Oct 08, 2026
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What Bottle Samples and Drawings Should You Provide Before a Machine Trial? Before arranging a machine trial, I recommend providing representative physical bottles, controlled technical drawings, closures, labels, production materials, target output, line-interface details, and written acceptance criteria. The supplier should receive enough information to evaluate bottle handling, filling, capping, labeling, orientation, transfer, and rejection performance under Learn More >Sep 24, 2026
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