500ml PET Bottle Blowing Molds

At BJY, we believe that precision leads to protection for both the product and the machine. Every mold is crafted to exacting tolerances using advanced CNC technology. This ensures that the two halves of the mold meet with absolute precision, eliminating the risk of excessive flashing or mismatched surfaces that can cause bottle failure. This high level of fit reduces the strain on the machine's mechanical locking systems, effectively protecting your capital investment and reducing the frequency of maintenance for the blowing unit.

During the blowing cycle, the PET preform is stretched and blown into the 500ml cavity. The mold must facilitate rapid heat dissipation while maintaining its structural alignment under pressure. BJY molds incorporate efficient internal water channels designed to maintain a stable temperature across the entire cavity surface. This thermal stability is essential for preventing bottle shrinkage and ensuring that the base of the bottle—particularly petaloid bases—is formed perfectly for stable conveying on high-speed filling lines.

For procurement teams, BJY offers a clear advantage in terms of value and technical reliability. Our use of premium imported solid aluminum bars from Alcoa ensures a long service life and high resistance to industrial fatigue. The addition of a professional hard-anodizing surface treatment provides extra protection in challenging factory environments where moisture and friction are constant. By choosing BJY, you are securing a high-quality forming tool that supports the steady growth and efficiency of your beverage production capabilities.