Cavity for HUSKY Injection Systems

What Does the Mold Cavity Do?

Inside a PET preform mold, the cavity is the section that forms the external surface of the preform. During the injection process, molten PET material fills the space between the core and the cavity. After cooling, the plastic becomes the finished preform.

A well-made cavity helps maintain stable production quality. If the cavity precision is poor, problems such as uneven wall thickness, flash, poor transparency, or unstable bottle dimensions may appear during production.

For this reason, the machining quality and material quality of the cavity are both very important for PET manufacturers running high-speed injection systems.

Product Features

Durable Stainless Steel Material

The cavity is manufactured from high-quality stainless steel with good hardness and wear resistance. It can work under continuous high-temperature production conditions while maintaining dimensional stability.

Precision Machining

BJY uses CNC machining equipment and strict tolerance control during production. Each cavity is carefully processed to ensure smooth assembly and stable operation on compatible HUSKY systems.

Smooth Surface Finish

The internal molding surface is polished to improve the appearance and transparency of the PET preform. A smoother surface also helps reduce sticking during molding.

Cooling Structure Design

The cavity structure is designed to support efficient cooling performance. Stable cooling helps reduce production cycle time and improves consistency between preforms.

Suitable for Long Production Cycles

The product is suitable for continuous operation in large-scale PET packaging factories. Stable performance helps reduce maintenance frequency and production interruption.

Relationship Between Core and Cavity

The cavity and core work together inside the PET preform mold.

The core forms the inner shape of the preform

The cavity forms the outer shape of the preform

When the mold closes, both parts create the complete injection molding space. The matching accuracy between these two components directly affects the final quality of the PET preform.

Relationship Between Core and Cavity

The cavity and core work together inside the PET preform mold.

The core forms the inner shape of the preform

The cavity forms the outer shape of the preform

When the mold closes, both parts create the complete injection molding space. The matching accuracy between these two components directly affects the final quality of the PET preform.

Common Applications

BJY mold cavities can be used for the production of:

Mineral water bottle preforms

Carbonated drink preforms

Edible oil containers

Dairy packaging bottles

Daily chemical packaging

Custom PET bottle projects

Experience in PET Mold Manufacturing

FOSHAN BAIJINYI PRECISE TECHNOLOGY CO., LTD. (BJY) was established in 2011. We specialize in PET preform molds, blow molds, closure molds, and mold spare parts.

Our team understands the actual operating conditions inside PET factories. Because of this, we pay attention not only to dimensions but also to cooling efficiency, durability, and production stability.

Why Many Customers Choose BJY

Compatible with Different International Systems

BJY products can be manufactured for different machine platforms, including HUSKY, KRONES, SIDEL, KHS, SIPA, and other PET packaging systems.

Quality Inspection Before Delivery

Before shipment, each cavity goes through inspection procedures such as:

1.Size checking

2.Surface inspection

3.Material confirmation

4.Concentricity testing

5.Compatibility checking

6.Custom Manufacturing Support

We can manufacture according to drawings, samples, or technical requirements provided by customers. Our engineering team also supports mold modification and replacement component development.

About BJY

FOSHAN BAIJINYI PRECISE TECHNOLOGY CO., LTD. (BJY) is a Chinese manufacturer focused on PET packaging mold solutions.

Our main products include:PET preform molds、Blow molds、Closure molds、Mold cavities、Mold cores、Stretch rods、Precision mold components

We continue to supply practical mold solutions for PET packaging manufacturers in different countries and production industries.