Since 2019, Leizhen Mold has been a global leader in designing and manufacturing high-precision wide-mouth jar molds and PET preform molds for industries including food packaging, cosmetics, pharmaceuticals, and household chemicals.

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12 Cavity PET PP Injection Preform Mold with Self Lock

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12 Cavity PET PP Injection Preform Mold with Self Lock

Mould material P20 steel, 718, 2738, H13, NAK80, 2344, 2343, S136, etc .
Runner Cold runner. Hot runner: Yudo/DME/HASCO
Standard HASCO, DME, LKM
Specification drawings

Pro/E, Auto CAD, Solidwork, CAXA UG, CAD/CAM/CAE.

Precision machining

CNC, milling machine, drilling machine, numerical lathe, all types of lathe

Surface finish process polishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, mirror polishing .
Shaping mould injection mould
Service OEM service available, good after-sales service .
Lead time 4-7 weeks, 40 days or according to the real situation .

PET Preform Mould Main Components Specification and Advantages

Main component

Specification and Advantages.

Core

2316 steel from Sweden.

high quality special mould 

steel from sweden (HRC >45)

 gurantee 2 million shots

 without any maintenance

Neck

S136 steel from Sweden, HRC >60,

International standard screw neck.

Cavity

2316 steel from Sweden

Each cavity have an independent temperature controller.

Each cavity self-clamp independently, 

ensure mould concentricity. 0.05-0.06mm.

Body

P20 Steel material from Germany

 Hot runner plate

 

2344 Steel material from Germany

 

Slider Plate

wear-resistant copper

specially designed 

cooling circuits

Proper design reduce molding cycle time to 15 seconds( with proper

water chiller and injection machine) about 3-5 shots per minute

Hot runner design

make sure the high quality of preform products.

Heater

Anole Germany

valve gated design

 with Automatic drop

each cavity has its independent heating zone and temperature is measured 

by independent thermocouple.(advantages: easily avoid some problems 

such as white or draw bench on bottom).

Valve gated type without tail reduces labor force.

Precessed by high 

presion CNC 

machine and numerical 

control loathe machine

Lowest weight and dimensional variation

thickness between max. part and min. part

 is not more than 0.05mm make sure 

that every parts can match well.

 

Leizhen’s Advantages in the Preform Mold Process: Precision, Innovation, and Reliability

In the competitive world of PET preform mold manufacturing, Leizhen has emerged as a trusted partner for brands and bottlers worldwide. Renowned for its engineering expertise, cutting-edge technology, and customer-centric approach, Leizhen delivers molds that optimize production efficiency, quality, and cost-effectiveness. Here’s an in-depth look at the advantages that set Leizhen apart in the preform mold industry:

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Professional PET preform mold manufacturer | Helping efficient production and achieving perfect bottle shape

As an industry-leading PET preform mold manufacturer, we focus on providing high-precision, long-life, customized preform mold solutions for global beverage, food, daily chemical and pharmaceutical companies. From design to mass production, we use innovative technology and excellent quality to help you achieve a double breakthrough in production efficiency and product quality!

(Mold Cav Qty)

Neck Size

Application

18 cav

48mm, 38mm,30/25,20/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical products, edible oil, medicine

24 cav

48mm,38mm,30/25,29/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical, products, edible oil, medicine

32 cav

48mm,38mm,30/25,29/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical products, edible oil, medicine

48 cav

48mm,38mm,30/25,29/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical products, edible oil, medicine

56 cav

48mm, 38mm, 30/25, 29/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical products, edible oil, medicine

72 cav

38mm, 30/25,29/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical products, medicine

96 cav

38mm, 30/25, 29/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical products, medicine

112 cav

30/25, 29/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical products, edible oil, medicine

128 cav

30/25, 29/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical products, edible oil, medicine

144 cav

30/25, 29/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical products, edible oil, medicine

176 cav

30/25, 29/25, PCO1881, PCO1810

Water, Juice, CSD, Daily chemical products, edible oil, medicine 

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Randomised words which don’t look even slightly Leizhen specializes in designing and manufacturing high-cavitation molds (including 48-cavity, 72-cavity, and even 144-cavity systems) that meet the demands of mass production. Their molds are engineered to ensure:

    Uniform Preform Quality: Advanced flow simulation software balances the runner system, guaranteeing consistent filling and wall thickness across all cavities.

    Tight Tolerances: Precision machining (±0.005mm) ensures compliance with international standards (e.g., PCO 1881, BPF) for neck finishes and thread designs.

    Durability: Molds are crafted from premium steel (H13, S136, or 420 stainless steel) with heat treatment (HRC 48–52) to withstand millions of cycles.

Leizhen integrates state-of-the-art technologies to enhance mold performance:

    Conformal Cooling Channels: 3D-printed or machined cooling channels follow the contour of the preform, reducing cycle times by up to 30% and minimizing warpage.

    Hot Runner Systems: Partnerships with top brands like Yudo or INCOE ensure leak-free, energy-efficient melt delivery. Valve-gated systems enable clean gate cuts for lightweight preforms.

    High-Speed Compatibility: Molds are optimized for machines with clamping forces up to 1,500 tons, achieving cycle times as low as 8–12 seconds for 20g preforms.

Leizhen tailors molds to meet specific client needs, including:

    In-House Testing: Every mold undergoes trial runs on injection molding machines to validate cycle times, cooling efficiency, and preform dimensions.

    ISO Certification: Compliance with ISO 9001 standards ensures traceability and accountability at every production stage.

    Third-Party Inspections: Collaborations with global certification bodies verify compliance with FDA, EU, and other regional regulations for food-grade PET.

Leizhen’s commitment to quality is reflected in its stringent QC processes:
While European and North American manufacturers often come with premium price tags, Leizhen strikes a balance between affordability and performance:

    Competitive Pricing: Direct manufacturing in China reduces overhead costs, offering savings of 20–40% compared to Western suppliers.

    Long Mold Lifespan: Durable materials and coatings (e.g., nitriding, DLC) extend mold life to 3+ million shots, lowering cost-per-preform.

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How to place an order for moulds?
1.R&D We support customer R&D. Make the files or improve the design if you needed.
2. Quotation Making Mould Quotation will be finished in 1 day according to the information we get.
3. Negotiation The quality, price, material, delivery time, payment item, etc.
4. Mould Design 1-2days for product 3D/2D drawing design as per customer's design. Then in further make the mould 2D/3D design.
5. Mould 1. confirm the products and the mold design
2. Mould material prepare
3. Rough machining(heat treatment on mold base and pre-harden on mold)
4. CNC/ Vacuum Hardening on mold main spare parts
5. finishing machining( JDPAINT, DEM.etc)
6. Dimension inspection
7. Ejector& runner& cooling & other device processes
8. Assemble mold
6. Mould Testing When moulds are finished, we will test the mould and we will send samples to client.
7. Sample confirmation If the first sample is not satisfied by the customer when it is come out. We modify the mould until meet the customer’s satisfaction.
8. Delivery Delivery goods by sea or by air, according to customer’s requirement.