The customer is a plastic packaging manufacturer from Southeast Asia

The customer is a plastic packaging manufacturer from Southeast Asia, producing cooking oil bottles and chemical containers with our blow molding machine. As their market demand increased, they decided to change to a new mold to produce oil bottles with a liquid level line and different sizes. However, during the first attempt to install the new mold by themselves, they faced serious problems. The mold could not close completely, the bottle neck position was misaligned, and the trial production resulted in uneven wall thickness and air leakage. As a result, the whole production line had to stop.

The customer contacted our technical support team immediately. We arranged an online video inspection and asked the customer to show us the mold installation area, clamping system, and extrusion head position. After careful analysis, our engineers identified three main issues:

1.The mold center was not aligned with the extrusion head.

2.The fixing bolts were tightened unevenly, causing the mold to close at an angle.

3.The blowing pin and cooling water channels were not adjusted for the new mold structure.

We then prepared a detailed step-by-step mold installation and replacement guide for the customer, including:

Safe mold lifting and positioning procedures

Mold alignment measurements and reference drawings

Standard torque values for fixing bolts

Adjustment method for the blowing pin

Cooling water connection diagrams

To ensure correct operation, we scheduled a remote technical support session. Our engineer guided the customer through each step, from removing the old mold, cleaning the mounting surfaces, to installing and adjusting the new mold. The entire process took about four hours.

After restarting the machine, the production ran smoothly. The oil bottles were well-formed with clear liquid level lines, uniform wall thickness, and stable quality. The defect rate was significantly reduced, and production efficiency quickly returned to normal.