48 Cavity Plastic Bottle Injection Preform Mould

Product Overview

Our 48 cavity hot runner PET preform mould is designed for high-output bottle preform production in beverage and packaging industries.

PET preform molds must ensure:

• Uniform preform weight

• Consistent neck finish accuracy

• Stable hot runner temperature control

• Reliable high-speed continuous operation

This mold solution supports plastic bottle preform manufacturing for water, beverage, edible oil, and food packaging applications.

Application Industries

This PET preform injection mould is widely used for:

• Bottled water preforms

• Carbonated beverage bottle preforms

• Edible oil containers

• Food and liquid packaging

• Household chemical packaging

High productivity and dimensional stability are critical in these sectors.

Key Engineering Focus

A 48 cavity PET preform mould operates under demanding production conditions.
The engineering priority is flow balance, thermal stability, and durability.

1) High-Cavity Hot Runner Balance

In a 48 cavity configuration, uniform melt distribution is essential.

• Balanced hot runner manifold design

• Precise temperature control across all cavities

• Uniform injection pressure

• Reduced weight deviation between preforms

Consistent cavity performance improves bottle blowing quality and reduces rejection rate.

2) Valve Gate Precision (Pin Valve System)

Available gate types:

• Pin valve gate

• Short tail

• Long tail

Valve gate control ensures:

• Clean gate cutting

• No stringing or tail defects

• Smooth neck finish surface

Gate quality directly affects downstream bottle blowing performance.

3) Mold Steel & Hardness Treatment

• High-quality steel for core and cavity components

• Nitrogen surface treatment to improve wear resistance

• Polishing finish for preform cavity surface

Durability and surface smoothness are critical for high-speed PET injection molding.

4) Cooling & Cycle Time Optimization

PET preform production requires efficient cooling:

• Optimized cooling channel layout

• Uniform temperature distribution

• Reduced cycle time

• Improved dimensional stability

Proper cooling design ensures consistent wall thickness and preform clarity.

Technical Specifications

• Mold Type: Hot Runner PET Preform Injection Mould

• Cavity: 48 Cavities (custom configurations available)

• Product: PET Bottle Preforms

• Runner System: Hot Runner (Cold Runner optional)

• Gate Type: Pin Valve / Short Tail / Long Tail

• Mold Steel: High-grade tool steel

• Surface Treatment: Polishing finish

• Hardness Treatment: Nitrogen treatment

• Mold Life: Up to 1,000,000 shots

• Supported File Formats: STP / STEP / IGS / PRT / X_T

• MOQ: 1 Set

Manufacturing Capabilities

• Maximum mold size: 2500 × 2000 × 1500 mm

• Machining precision: ±0.005 mm

• Injection precision: ±0.03 mm

• Lead time: 25–45 days depending on complexity

In-house equipment includes:

• High-precision CNC machining centers

• EDM and mirror EDM

• Wire cutting machines

• Coordinate Measuring Machine (CMM)

Each mold undergoes dimensional inspection and trial molding before shipment.

Production Workflow

1. Preform design and neck standard confirmation

2. 48 cavity layout and hot runner engineering

3. Mold structure design

4. Precision machining and heat treatment

5. Assembly and valve gate adjustment

6. Trial molding and weight balance optimization

7. Final inspection and delivery

This structured process ensures stable high-output production.

Why Choose Our PET Preform Moulds

• Experience in high-cavity PET molds

• Strong expertise in hot runner manifold systems

• Focus on weight consistency and neck precision

• Stable production performance under continuous operation

• ISO 9001 certified workflow

• One-year after-sales support

Our goal is to deliver PET preform molds capable of long-term high-speed operation.

Technical FAQ

Q1: Can you supply other cavity configurations besides 48 cavities?
Yes. We support custom cavity numbers based on production capacity requirements.

Q2: How do you ensure uniform preform weight?
Through balanced hot runner design and strict cavity machining precision control.

Q3: Is the valve gate system adjustable?
Yes. Pin valve systems are precisely adjusted during mold trial to ensure clean gate cutting.

Q4: What is the expected mold life?
Standard molds are rated up to 1 million shots, depending on operating conditions.

Q5: Can the mold be integrated with major injection machine brands?
Yes. The mold design can be customized according to your injection machine specifications.

Request a Quotation

To receive a quotation for a 48 Cavity Hot Runner PET Preform Mould, please provide:

• Preform 3D drawing

• Neck finish standard

• Target weight and output

• Injection machine specifications

• Delivery schedule

Our engineering team will review your project and provide a complete mold proposal.