Plastics : Stretch film, manual wrapping versus machine wrapping

Stretch film can be applied either by hand (manual wrapping) or by machines (machine wrapping).

Both use the same basic film, but the results, cost, and efficiency are very different.

1- Manual wrapping (hand wrapping):

A worker wraps stretch film around a pallet or product using a handheld roll as follows:

• The worker pulls the film from a roll
• Walks around the pallet
• Stretches the film manually
• Layers it to secure the load

1.1- Advantages:

• Low initial cost (no machine needed)
• Flexible for small or irregular loads
• Easy to use anywhere (no setup required)
• Good for small businesses

1.2- Disadvantages:

• Inconsistent tightness (depends on worker strength)
• More film is usually used (less efficient)
• Slower process
• Higher physical effort could lead to fatigue and injury risk
• Less stable loads compared to machines

1.3- Used usually  in the cases below:

• Small businesses
• Low shipping volume
• Irregular or one-off packaging jobs
• Shops, small warehouses and local deliveries

2- Machine wrapping:

A machine automatically wraps stretch film around pallets using controlled tension and speed.

2.1- Types of machine wrapping:

• Turntable wrappers
• Rotary arm machines
• Robotic wrappers

2.2- The process:

• Load is placed on machine
• Machine rotates or moves around the packaged goods
• Film is stretched at a controlled tension
• Wrapping pattern can be programmed

2.3- Advantages:

• Very consistent wrapping quality
• Uses less film (cost-efficient)
• Faster packaging process
• Stronger and more stable loads
• Reduces labor effort and injury risk

2.4- Disadvantages:

• High initial investment
• Requires maintenance and training
• Not ideal for very small operations

2.5- Machine wrapping is suitable for:

• Warehouses
• Logistics companies
• Manufacturing plants
• Export businesses
• High-volume shipping operations

Summary:

Best scale: is one that helps you accurately measure film consumption per pallet and film usage over time.

3- Which stretch film to use?

 The best film depends on the goods you are packaging:

3.1- Food industry:

• Clean, hygienic packaging
• Protection from dust and moisture
• Safe for indirect food contact (packaged food)

Best stretch film for the food industry:

• Clear cast stretch film
• High clarity film (for visibility)
• Food-grade LLDPE film

Food-grade LLDPE film: is a plastic packaging film made from Linear Low-Density Polyethylene (LLDPE) that is safe for direct contact with food.

This type of films allows you to see products easily, keeps goods clean and sealed and is smooth and quiet when the film is pulled off its roll during the packaging process.

Examples:

• Packed fruits and vegetables
• Bakery boxes
• Bottled drinks

3.2- Logistics and warehousing:

• Strong load stability
• High efficiency
• Cost reduction per pallet

Best stretch film to be used:

• Machine-grade stretch film
• High-performance multi-layer film
• Pre-stretched film (for machines)

The reason behind picking this film:

• Reduces film usage
• Holds heavy pallets securely
• Works well with automated systems

Examples:

• Export pallets
• E-commerce warehouses
• Distribution centers

3.3- Manufacturing industry:

• Protection from dust, scratches, and movement
• Heavy and irregular loads
• Industrial strength wrapping

Most suitable stretch film:

• Blown stretch film (for strength)
• pHigh puncture-resistant film
• Opaque or black film (if privacy needed)

High puncture-resistant film: is a plastic film designed to resist holes, tears, and damage from sharp objects.

Reason behind that choice:

• Handles sharp edges and heavy parts
• Strong resistance to tearing
• Good for rough handling environments

Examples:

• Machinery parts
• Metal components
• Automotive parts

3.4- Export and shipping industry:

• Long-distance transport safety
• Weather protection
• Strong load containment

Most suitable stretch film:

• High-stretch machine film (300–400% stretch)
• UV-resistant stretch film
• Thick gauge film for durability

Reasons for choosing that film:

• Prevents load shifting during long transit
• Resists heat, humidity, and vibration
• Reduces damage risk

3.5- Retail and light packaging:

• Appearance and presentation
• Light protection
• Easy handling

Best stretch film for this activity:

• Clear cast film
• Thin gauge film (cost-saving)
• Hand wrap film for small loads

Reasons behind that choice:

• Clean look for customers
• Easy manual application
• Low-cost solution

4- Film selection summary:

5- Conclusion:

5.1- Manual wrapping:

• Cheap and flexible
• Best for small-scale use

5.2- Machine wrapping:

• Fast, consistent, and efficient
• Best for business-scale operations