Dedicated Cooling Channels
The Preform Mould Cold Half uses dedicated cooling circuits around the core, cavity, and neck areas to maintain consistent heat transfer during PET preform moulding.
Balanced Temperature Control
Cooling channels are arranged according to the geometry and thermal requirements of each mould section, helping maintain uniform temperature distribution across multiple cavities.
Efficient Water Flow
Optimized cooling circuits provide stable water flow through critical mould areas, improving heat removal and supporting consistent production cycles.
Reduced Dimensional Variation
More uniform cooling helps minimize dimensional variation caused by uneven temperature distribution, supporting stable preform weight, wall thickness, and geometry.
Production-Oriented Design
The Preform Mould Cold Half cooling structure is designed for continuous production, with practical channel layouts that also facilitate inspection, cleaning, and maintenance.
Preform Mould Technical Specifications
| Technical Parameter | Specification / Description |
|---|---|
| Cavity Configuration | 48–144 cavities, with experience in high-cavity PET preform mould development and production |
| Mould Design | CAD-based mould design according to preform geometry, bottle requirements, and dimensional specifications |
| Neck Finish | Manufactured according to international neck-finish standards, with dedicated venting provisions to support dimensional stability and service life |
| Core & Cavity | Corrosion-resistant mould steel selected for durability, dimensional stability, and long-term production |
| Hot Runner System | Advanced hot runner design with independent temperature control for each cavity to maintain balanced melt distribution |
| Gate Design | Valve-gate configuration supports direct gating without secondary gate trimming, reducing material waste and post-processing |
| Hot Runner Nozzle | Individual nozzle temperature control helps maintain stable processing conditions and reduce issues such as bottom whitening and stringing |
| Valve Gate System | Independent core and cavity locking structure with adjustable alignment to control eccentricity and improve preform concentricity |
| Customization | Custom mould development based on customer drawings, samples, preform specifications, and new product requirements |
| Integrated Service | Covers mould design, development, manufacturing, trial moulding, and technical support for PET preform applications |
SZ-MOLDTECH Preform Mould Cold Half Manufacturing Capabilities
Dedicated PET Mould Engineering
SZ-MOLDTECH focuses on PET preform mould manufacturing and applies dedicated engineering procedures to Cold Half development. Our team evaluates preform geometry, cavity configuration, mould structure, and production requirements before machining to ensure the Cold Half is built for the intended application.
Controlled Manufacturing Process
We manage machining, fitting, polishing, measurement, and assembly through defined production procedures. Critical components are processed and inspected according to dimensional requirements, reducing variation between individual mould components and supporting accurate final assembly.
Multi-Cavity Manufacturing Experience
Our manufacturing capability covers high-cavity PET preform mould configurations, where consistent component dimensions and cavity matching are essential. Production and inspection procedures are structured to maintain repeatability across the complete Cold Half assembly.
Technical Support Throughout Delivery
SZ-MOLDTECH provides technical coordination from mould design and manufacturing through trial moulding and final delivery. We can work from customer drawings, samples, or preform specifications and provide engineering feedback when structural or manufacturing adjustments are required.
FAQ
1. Q: Can the Cold Half be matched with our existing Hot Half, and what parameters are required for verification?
A: Yes. We can evaluate compatibility with your existing Hot Half. Please provide the hot runner plate model, cavity number, locating dimensions, and machine tonnage. Our engineering team will review these parameters and provide a suitable interface and matching solution.
2. Q: What inspections are performed before the Cold Half is delivered? Are inspection reports provided?
A: Before shipment, we conduct mould closing and fitting tests, cooling water circuit pressure and leakage tests, and dimensional inspections of critical cavity components. The relevant inspection records are provided with the mould to help identify potential water leakage or alignment issues before installation.
3. Q: What type of cooling water circuit is used in the Cold Half? Is there a risk of scaling or blockage during long-term production?
A: The cooling circuits are machined directly into the mould components, with the internal surfaces finished to reduce scale adhesion. We also provide cooling circuit maintenance guidelines. Using properly treated or softened water can further reduce scale
accumulation and help maintain stable cooling performance during continuous production.
4. Q: Can the cavity be modified later if we need to change the preform neck finish?
A: Local cavity modifications can be considered without rebuilding the complete mould. Our engineering team first evaluates the available steel allowance and existing mould structure, then provides an estimated modification cost and lead time based on the required changes.
Hot Tags: preform mould cold half, China preform mould cold half manufacturers, suppliers, factory, 48 cavity high speed cold half mold, Hard Tube Pet Preform and Preform Mould, PET Bottle Preform Mold, PET Preform Tube Molds, Preform Mold Cold Half, Preform Moulds with Hot Runner and Temperature Controllers
