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πŸ’§ What are PET Blow Moulds?

PET blow moulds are specialized tooling used in the production of PET (Polyethylene Terephthalate) containers through the injection stretch blow moulding (ISBM) process. PET is the material of choice for transparent, lightweight, and recyclable beverage bottles due to its excellent clarity, strength, and barrier properties.

At Laxmi Micro Industries, we have been manufacturing high-precision PET blow moulds since 1987. Our PET moulds include both preform moulds (for injection moulding of PET preforms) and stretch blow moulds (for expanding preforms into final bottle shapes). We serve industries including beverages, edible oils, pharmaceuticals, and personal care.

βš™οΈ Types of PET Blow Moulds We Manufacture

  • PET Preform Moulds - Injection moulds for manufacturing PET preforms (test-tube shaped precursors)
  • Stretch Blow Moulds - For expanding preforms into final bottle shapes
  • High-Cavitation Preform Moulds - Up to 48+ cavities for high-volume production
  • Hot Runner Preform Moulds - For reduced material waste and faster cycles
  • Custom Shape Blow Moulds - For unique bottle designs and specialty containers
  • Heat Set Blow Moulds - For hot-fill applications

🏭 Applications of Our PET Blow Moulds

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Water Bottles

Packaged drinking water bottles from 200ml to 5 litres

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Carbonated Soft Drinks

CSD bottles for colas, sodas, and sparkling beverages

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Edible Oil Bottles

Cooking oil containers from 500ml to 5 litres

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Juice & Beverages

Fruit juice bottles, energy drinks, and flavored beverages

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Pharmaceutical

Medicine bottles, syrup containers, and sterile packaging

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Personal Care

Shampoo bottles, lotion containers, and cosmetic packaging

πŸ”§ PET Preform Moulds - The First Step

PET preform moulds are injection moulds that produce PET preforms - the test-tube shaped precursors that are later blown into bottles. Key features of our preform moulds include:

  • High Cavitation - 8, 16, 24, 32, 48, or 64+ cavities
  • Hot Runner Systems - Balanced melt distribution for consistent preform quality
  • Precision Neck Finishes - PCO, 1810, 1881, ALCOA, and custom neck standards
  • Rapid Cooling - Optimized cooling channels for faster cycles
  • Gate Design - Optimized gate location for clear, stress-free preforms

Preform specifications we can produce:

  • Neck sizes: 18mm to 48mm diameter
  • Preform weights: 5g to 150g
  • Preform lengths: 30mm to 250mm
  • Material: Virgin PET, recycled PET (rPET), and custom blends
  • Colors: Clear, tinted, or custom colors

🍾 Stretch Blow Moulds - Final Bottle Shape

Stretch blow moulds are used in the second stage of the ISBM process, where preforms are heated, stretched, and blown into final bottle shapes. Our stretch blow moulds feature:

  • Precision Cavities - Mirror-finished cavities for crystal-clear bottles
  • Optimized Cooling - Efficient cooling for faster cycle times
  • Stretch Rod Compatibility - Compatible with all major blow moulding machines
  • Base Cup Integration - For standing bottles and custom base designs
  • Ventilation Design - Proper venting for complete cavity filling

βœ… Advantages of PET Blow Moulds

  • Lightweight Containers - Significant material savings compared to glass
  • Excellent Clarity - Crystal-clear transparency for product visibility
  • High Strength - Impact-resistant and shatterproof
  • Barrier Properties - Good oxygen and CO2 barrier for beverages
  • 100% Recyclable - Environmentally friendly packaging solution
  • High-Speed Production - Up to 50,000+ bottles per hour

🏭 High-Cavitation PET Preform Moulds

For high-volume bottle production, we manufacture high-cavitation PET preform moulds that maximize output while maintaining consistent quality:

32 Cavity Moulds

Ideal for medium to large production volumes. Cycle time: 12-15 seconds.

48 Cavity Moulds

High-output solution for large-scale beverage manufacturers. Cycle time: 15-18 seconds.

64+ Cavity Moulds

Ultra-high production for major bottling plants. Custom engineered for maximum output.

πŸ”§ Our PET Blow Mould Manufacturing Process

1. Design & Simulation

3D modelling and simulation of preform design, stretch ratio, and material distribution using advanced CAD/CAM software.

2. Neck Finish Machining

Precision machining of neck finishes with tight tolerances for consistent sealing and capping.

3. Cavity & Core Machining

High-speed CNC machining of cavities and cores with mirror-finish surface quality.

4. Cooling Channel Design

Optimized conformal cooling channels for rapid and uniform cooling.

5. Quality Inspection

CMM inspection of all dimensions including neck finish, gate area, and cavity dimensions.

6. Trial Runs

Live mould trials on injection and blow moulding machines with sample production.

πŸ“¦ Materials Used in Our PET Blow Moulds

Stainless Steel

For corrosion-resistant components and high-gloss finish requirements

H13 Tool Steel

For high-wear components and extended mould life

Beryllium Copper

For rapid heat transfer in gate and neck finish areas

P20 Steel

For mould bases and non-critical components

⭐ Why Choose Laxmi Micro Industries for PET Blow Moulds?

35+ Years of Experience

Founded in 1987 by Mr. Shantilal Panchal, we have extensive expertise in PET blow mould manufacturing.

Advanced Infrastructure

Our tool room is equipped with 5-axis CNC machines, EDM, wire-cut, and CMM for precision manufacturing.

High-Cavitation Expertise

Specialized knowledge in designing high-cavitation moulds up to 64+ cavities for high-volume production.

Quick Turnaround

Typical lead time of 20-30 days for most PET blow mould requirements.

Pan-India Delivery

We serve clients across India including Ahmedabad, Mumbai, Delhi, Pune, Chennai, Bangalore, and Kolkata.

After-Sales Support

We provide spare parts, maintenance guidance, and technical assistance even after mould delivery.

πŸ“ Technical Specifications of Our PET Blow Moulds

Preform Neck Sizes

18mm, 22mm, 26mm, 28mm, 30mm, 33mm, 38mm, 43mm, 48mm and custom sizes

Neck Standards

PCO, 1810, 1881, ALCOA, MCA, and custom designs

Preform Weight Range

5g to 150g per preform

Bottle Capacity

200ml to 20 litres

Cavity Count

1 to 64+ cavities for preform moulds; 1 to 24+ for blow moulds

Surface Finish

Mirror polish (SPI-A1) for crystal-clear bottles

❓ Frequently Asked Questions About PET Blow Moulds

1. What is the difference between PET preform moulds and stretch blow moulds?
PET preform moulds are injection moulds that produce the test-tube shaped preforms. Stretch blow moulds are used in the second stage to expand those preforms into final bottle shapes. Both are essential for PET bottle production.
2. What is the typical lead time for a PET blow mould?
Our standard lead time for PET blow moulds is 20-30 days from design approval, depending on cavity count and complexity.
3. What is the maximum cavitation you offer for preform moulds?
We manufacture PET preform moulds with up to 64+ cavities for high-volume production applications.
4. What neck finishes do you support?
We support all standard neck finishes including PCO, 1810, 1881, ALCOA, MCA, and custom designs as per customer requirements.
5. Do you provide trial runs before dispatch?
Yes, every PET blow mould undergoes live trial runs on injection and blow moulding machines. We provide sample preforms/bottles and a trial report before final dispatch.
6. Can you manufacture moulds for recycled PET (rPET)?
Yes, we manufacture PET blow moulds specifically designed for processing recycled PET (rPET) material, with optimized gate and venting designs.
7. What is the expected mould life for your PET moulds?
Depending on the steel grade selected, our PET blow moulds can produce 2 million to 10 million+ shots. We recommend stainless steel or H13 for maximum mould life.