Optimized Cooling Channel Layout – SZ-MOLDTECH designs the cooling circuit around the core and cavity structure to promote efficient heat removal from the moulding area without creating unnecessary temperature differences between critical sections.
Core and Cavity Cooling Balance – Independent cooling paths for the core and cavity help maintain a controlled thermal condition during injection, supporting consistent preform formation across the mould.
Controlled Heat Transfer – Cooling parameters are considered together with preform geometry and mould structure to manage heat accumulation during continuous production and avoid excessive thermal loading.
Stable Cycle Conditions – A well-arranged cooling system provides repeatable thermal conditions from cycle to cycle, helping maintain consistent production rhythm in multi-cavity PET preform moulding.
Long-Run Dimensional Stability – Effective heat removal reduces thermal fluctuation within the mould, helping limit dimensional changes during extended production runs and supporting stable preform quality.
SZ-MOLDTECH - Engineering and Manufacturing for PET Preform Moulds
Dedicated PET Mould Engineering – SZ-MOLDTECH focuses on the engineering and manufacture of high-speed PET preform moulds, with designs developed around specific preform drawings, production targets and injection machine requirements.
Production-Oriented Mould Development – Our engineers consider mould structure, component selection, machining requirements and maintenance access during the design stage, helping ensure that the finished mould is practical for continuous industrial production.
Controlled Manufacturing Process – Precision machining, EDM, grinding, polishing, measurement and mould assembly are carried out through defined manufacturing procedures to maintain dimensional consistency between critical components.
Multi-Cavity Project Capability – SZ-MOLDTECH provides multi-cavity preform mould solutions for different production volumes, with engineering attention given to cavity matching and overall mould assembly.
Application-Based Customization – Rather than supplying a fixed mould configuration, we develop the mould according to the customer's preform specification, neck finish, material requirements, machine platform and expected production conditions.
FAQ
Q: What is included with the mould, and how is the warranty defined?
A: The standard delivery package can include the hot runner system, recommended spare parts, installation drawings and mould trial documentation. The warranty covers manufacturing and machining defects of the mould under agreed operating conditions. Wear parts and damage caused by improper operation or maintenance are excluded. The warranty period is calculated from the date of qualified mould acceptance.
Q: What production capacity can the mould support, and what cycle time can be expected?
A: Production capacity depends on the number of cavities, preform weight, injection machine, resin grade and process settings. For typical non-carbonated beverage preforms, cycle times may generally fall within the 22–30 second range, but the actual result should be confirmed according to the specific preform design and production conditions. SZ-MOLDTECH can recommend the appropriate cavity configuration based on the required output.
Q: Can the mould be modified if we later change the preform weight or neck finish?
A: Modification feasibility depends on the extent of the design change. Where the existing mould structure allows, selected cavity, core or insert components can be redesigned or replaced instead of manufacturing a completely new mould. After reviewing the revised preform drawing, SZ-MOLDTECH can evaluate the required modifications, lead time and cost.
Q: What are the main maintenance requirements for the PET preform mould?
A: Regular maintenance should focus on the hot runner system, gate areas, venting surfaces, cooling circuits and moving components. Cleaning and inspection should be carried out according to the production cycle and operating conditions. Common replacement items may include seals, springs and other wear components. SZ-MOLDTECH can provide a recommended spare-parts list to support planned maintenance and reduce unexpected downtime.
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