Solution 1: Single Screw Blown Film Machine (Budget-Friendly / Entry-Level Choice)

For businesses with limited budgets or those newly entering the shrink film packaging field, the single screw blown film machine is an economical and practical entry-level choice.

Application Scenarios

• Small to medium-sized bottled water producers
• Lower output requirements (25-120 kg/h)
• Basic film performance requirements
• Limited initial investment budget

Core Configuration Recommendations

Advantages

• Low investment cost, high cost-performance ratio
• Simple operation and maintenance, lower operator requirements
• Approximately 30% energy savings compared to standard models
• Compatible with multiple materials including HDPE, LDPE, and LLDPE

Solution 2: ABA Co-extrusion Blown Film Machine (Cost-Effective / Upgrade Choice)

For businesses pursuing higher film quality, lower production costs, and greater output, the ABA three-layer co-extrusion blown film machine is the ideal choice.

What is an ABA Blown Film Machine?

The ABA blown film machine uses three-layer co-extrusion technology with a film structure of: outer layer (A) + inner layer (B) + outer layer (A). Two extruders supply material to the three-layer die head, with one main extruder supplying both outer layers (A) and the other supplying the middle layer (B).

Application Scenarios

• Medium to large-sized bottled water producers
• Higher output requirements (150+ kg/h)
• Higher requirements for film strength, shrink performance, and optical quality
• Focus on long-term operating costs and material savings

Core Configuration Recommendations

Core Advantages

1. 30% Film Strength Improvement: ABA three-layer film is approximately 30% stronger than film produced by single-layer extruders
2. Significant Material Cost Savings: Premium raw materials are mainly used in the thinner outer layers (A), accounting for a relatively small percentage of total composition; the middle layer (B) can use calcium carbonate or recycled material
3. Customizable Film Properties: Tailored puncture resistance, shrink force, and optical properties as needed
4. High Output and Efficiency: Advanced automation and control systems minimize setup time and maintenance requirements
5. Excellent Barrier Properties: Multi-layer structure enhances moisture, oxygen, and UV resistance

Solution Comparison at a Glance

Core Configuration Recommendations (General)

Regardless of which solution you choose, the following core configurations are essential for producing high-quality bottled water shrink film:

1. Screw and Barrel: 38CrMoALA alloy steel, nitrided and precision-machined, ensuring high hardness, corrosion resistance, and durability
2. Die Head System: Spiral mandrel type die head design, ensuring excellent film thickness uniformity
3. Air Ring Cooling System: High-pressure labyrinth type air ring, ensuring uniform film cooling
4. Haul-off System: Stable haul-off ensuring film flatness and dimensional stability
5. Winding System: Automatic winding with air shaft, ensuring uniform winding tension
6. Control System: Full variable frequency speed control + PLC control, enabling precise operation and energy savings

Summary

• Limited Budget / Just Starting Out → Choose Single Screw Blown Film Machine – low investment, simple operation, meets basic production needs
• Pursuing Cost Reduction & Efficiency / Scaled Production → Choose ABA Co-extrusion Blown Film Machine – higher film strength, lower material costs, better long-term returns