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GST No: 27AACCA8775E1Z7
When it comes to industrial shrink wrapping operations, choosing the right film type directly impacts packaging efficiency, product protection, and operational costs. Understanding the technical differences between LDPE, LLDPE, and POF films ensures optimal machine compatibility and a professional-quality finish.
LDPE (Low-Density Polyethylene) features a highly branched molecular structure that provides exceptional flexibility and robust protective strength.
It begins shrinking at approximately 110–120°C and performs optimally at 125–160°C — perfect for heavy-duty, industrial packaging.
Key Characteristics:
Superior strength and puncture resistance — ideal for boxes, cartons, and sharp-edged products
Density range: 0.917–0.93 g/cm³ (thickness from 0.4 mil to 40 mil)
Operates with high-thickness films (up to 1200 gauge)
100% recyclable and FDA-approved for food contact
LLDPE (Linear Low-Density Polyethylene) combines flexibility and strength through a linear molecular structure with short, controlled branches.
It delivers higher tensile strength and puncture resistance than LDPE — often at a thinner gauge, resulting in lower material cost.
Advanced Features:
Highest flexibility and impact resistance among shrink films
Up to 20% material savings while maintaining durability
Ideal for high-volume, heavy-duty packaging lines
Excellent for stretch and multi-pack applications
POF (Polyolefin) is the premium-grade film used in retail, food, and pharmaceutical packaging.
Made from a blend of polyethylene and polypropylene, it provides superior clarity, seal strength, and safety.
Premium Attributes:
Exceptional optical clarity and glossy finish for product display
FDA-approved for food and pharma contact
Shrink temperature: 90–120°C with 2–3 sec dwell time
100% recyclable and emits no harmful fumes
| Property | LDPE | LLDPE | POF |
|---|---|---|---|
| Shrink Temperature | 110–160°C | 110–160°C | 90–120°C |
| Clarity | Good | Good | Exceptional |
| Strength | High puncture resistance | Highest tensile strength | Strong seal strength |
| Flexibility | High | Highest | Good |
| Cost | Moderate | Cost-effective | Premium |
| Applications | Heavy-duty, industrial goods | High-volume operations | Food & retail |
| Environmental | 100% recyclable | Recyclable | 100% recyclable |
Each film type needs precise temperature matching for optimal shrink quality.
LDPE/LLDPE: 125–160°C with 12–19 sec dwell time
POF: 90–120°C with 2–3 sec dwell time
To achieve perfect results with LDPE/LLDPE:
Fully recirculating air system for even heat distribution
High-power heaters (9–12 KW) for consistent chamber temperature
±2°C temperature precision for consistent film shrinkage
Adjustable conveyor speeds for proper dwell time management
The APST-120 Standard Shrink Wrapping Machine is built for heavy-duty LDPE and LLDPE operations.
Its engineering precisely aligns with industrial-grade film requirements.
Key Advantages:
9 KW fully recirculating air system with 12 × SS U-type heaters ensures uniform heat distribution
Temperature range of 0–300°C with auto-regulated control for consistent performance
Heavy-duty live roller conveyor system for smooth, vibration-free product flow
Robust MS body structure designed for 24/7 industrial operation
🎯 This precision system prevents film tearing and guarantees a perfect shrink finish — every time.
| Choose | When You Need | Best For |
|---|---|---|
| LDPE | Maximum strength, puncture resistance | Industrial, chemical, or sharp-edged packaging |
| LLDPE | Cost-efficiency, flexibility | High-volume, sustainable operations |
| POF | Clarity & retail presentation | Food, pharma, and consumer products |
LDPE Films: 125–160°C
LLDPE Films: 120–160°C
POF Films: 90–120°C
💡 Pro Tip: Use slightly lower temperatures with longer dwell times for smoother film finish and fewer wrinkles.
Uneven Shrinkage: Improve air recirculation
Film Tearing: Lower heat or increase dwell time
Poor Seal Quality: Check bar temperature & film tension
Fewer packaging failures due to stronger film
Reduced damage in transit and longer shelf life
Up to 20% cost savings with LLDPE thinner gauges
Premium clarity → better product presentation
Food-safe and eco-friendly operation
Less machine maintenance and improved worker safety
Choosing the right shrink film impacts your packaging quality, operational efficiency, and cost-effectiveness.
LDPE = Maximum strength
LLDPE = Flexibility & cost efficiency
POF = Clarity & food-grade safety
If you’re moving to heavy-duty LDPE or LLDPE films, machine capability becomes crucial.
The APST-120 Standard Shrink Wrapping Machine is engineered for these films — ensuring consistent temperature control, durability, and perfect shrink results.
👉 Contact AmarPack Engineers for a custom consultation on the APST-120 Model Series and elevate your packaging efficiency today.
Founded in 1998 in Mumbai, India, AmarPack Machines Pvt. Ltd. is one of India’s leading manufacturers and exporters of premium packaging machines. Read More
GST No. 27AAZCA2345J1Z6
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