Why does stretch film break during pallet wrapping? Discover the 7 main technical causes of stretch film tearing, machine setting errors, incorrect micron selection, and proven solutions to prevent film breakage.

Why Does Stretch Film Break? (Quick Answer for Featured Snippet)

Stretch Film typically breaks due to excessive tension, incorrect micron thickness, low-quality material, sharp load edges, cold temperatures, or improper pallet wrapping machine settings. Adjusting pre-stretch levels and using the correct film specification can significantly reduce breakage.

What Is Stretch Film Breakage?

Stretch film breakage occurs when the film tears or snaps during pallet wrapping before the load is fully secured. This issue:

• Increases film consumption

• Causes production delays

• Reduces load stability

• Leads to shipping damage

For factories with high daily pallet volumes, even small breakage rates can create major operational costs.

7 Technical Causes of Stretch Film Breakage

1️⃣ Excessive Pre-Stretch Tension

Modern Pallet Wrapping Machine systems use pre-stretch technology to reduce film usage.

However, if:

• The tension is set too high

• A thin micron film is used

• Load resistance exceeds film capacity

the film reaches its tensile limit and breaks.

Solution:

✔️ Reduce pre-stretch percentage
✔️ Match film thickness to load weight
✔️ Perform test wraps to find the optimal setting

2️⃣ Incorrect Micron Thickness Selection

Choosing the wrong film thickness is one of the most common causes of breakage.

General guidelines:

• 8–12 microns → Light loads

• 15–17 microns → Standard pallet loads

• 20–23 microns → Heavy or export loads

Using thin film for heavy pallets can increase breakage risk by up to 40%.

3️⃣ Low-Quality Stretch Film

Low-cost films made from inferior or recycled materials often:

• Have inconsistent thickness

• Lack elasticity

• Contain weak structural points

High-quality stretch film offers uniform structure and better puncture resistance.

4️⃣ Sharp Load Edges

Metal corners, wooden splinters, or hard carton edges create point pressure on the film.

This leads to:

• Punctures

• Tearing

• Sudden snapping

Solution:

✔️ Use corner protectors
✔️ Increase top wrap rotations
✔️ Ensure load surface is balanced

5️⃣ Cold Storage or Low Temperatures

Stretch film loses elasticity in cold environments.

Below 5°C (41°F), film becomes more brittle and prone to tearing.

Solution:

✔️ Store film at 15–25°C (59–77°F)
✔️ Use film designed for cold storage conditions

6️⃣ Poor Machine Maintenance

If the wrapping machine has:

• Worn tension rollers

• Misaligned sensors

• Irregular turntable speed

film tension becomes inconsistent, increasing breakage risk.

Solution:

✔️ Implement monthly maintenance checks
✔️ Inspect tension systems regularly
✔️ Lubricate moving components

7️⃣ Incorrect Wrapping Parameters

Excessively high turntable speed or insufficient top/bottom wraps can cause uneven tension distribution.

Uneven film layering increases stress points and leads to tearing.

What Is the Cost of Stretch Film Breakage?

Film breakage can result in:

• 15–30% higher film consumption

• Operator downtime

• Shipping damage

• Product returns

Over time, these costs exceed the investment in higher-quality film and proper machine adjustment.

Can Stretch Film Breakage Be Completely Prevented?

While no system is perfect, breakage can be minimized by:

✔️ Selecting the correct micron thickness
✔️ Using high-quality stretch film
✔️ Adjusting machine pre-stretch properly
✔️ Performing preventive maintenance
✔️ Storing film under suitable conditions