How to Select Stretch Film for Different Pallet Loads and Packaging Requirements

When considering industrial packaging, looking at the cost and thickness of the stretch film is only the beginning. The solution must provide enhancement to the packaging system while ensuring the stability of the package and the wrapping equipment.

At Yalan Pack, we know each pallet has its challenges. Different performances from stretch film and wrapping algorithms are needed for palletized lightweight, heavy, and irregular-shaped products. The combination of carefully selected stretch film and pallet wrapping equipment helps minimize waste and increases security of each and every load while allowing companies to maintain consistency in packaging.

Stretch wrap has elastic properties that allow it to adapt to a pallet. Films produce holding pressure on a pallet through  elastic recovery force. When selecting a film, we are more interested in how the film's properties interact with the pallet in the specific application, rather than comparing film thickness or cost.

Identify the Real Packaging Problem Before Selecting Stretch Film

Most of the issues encountered while pallet packaging are caused by selecting Stretch Film without considering the entire application environment.

Companies should consider the following before using stretch film:

•Pallet weight and dimensions

•Product shape and stacking stability

•Transportation distance and handling conditions

•Storage environment

•Manual or automatic wrapping process

Different conditions of pallets calls for different requirements for stretch film:

Pallet Situation	Main Risk	Required Stretch Film Performance
Lightweight cartons	Product movement	Stable holding force with flexible film
Heavy industrial products	Film breakage	Higher tensile strength and puncture resistance
Irregular loads	Sharp edges damaging film	Better tear resistance
Tall pallets	Load leaning or shifting	Higher containment force
Export shipments	Vibration and repeated handling	Long-term wrapping stability

Packaging solutions become successful when solving for the failure point. Are the failures caused by not enough holding force, incorrect film tension, excessive consumption, or inadequate wrapping equipment?

Key Stretch Film Characteristics and Influence on Packaging Performance

Understanding stretch film characteristics is a vital part of the selection process for a professional film manufacturer.

Factors of Stretch Film Performance

Film Characteristic	Summary	Effect on Packaging
Film Thickness	thickness	Cool strength and saves material
Stretch Ratio	Extendability	Covers area
Tensile Strength	Resistance to a pulling force	Stop film from breaking
Puncture Resistance	Sharp resistance	Protective of unstable cargo
Containment Force	After wrapping, how much pressure is held	Maintain integrated pallet
Film Surface Cling	Layer to layer bonding	Avoid film breaking down

Knowledge of the stretch ratios gained through decades of experience will help determine the correct thickness of the film. The stretch ratio is a function of the thickness of the film. Thicker film can provide greater resistance to puncture. Extremely thin film may not be very strong, so there should be a good balance to protect against sharp resistance and puncture. Film that is too thick may waste materials.

Even though heavy pallet loads require more film than light pallet loads, higher film consumption creates an unnecessary cost.

These applications seek the following:

•More puncture resistance

•Better tensile strength

•Better control of film tension

•To add additional layers of wrapping when needed

The aim is not to produce a stronger film but to find a Stretch Film solution that limits load displacement within the parameters of real transportation scenarios.

Long Distance and Export Transportation Applications

International shipments experience greater phenomena of handling cycles, vibration, and exposure to changing conditions.

With regard to export packaging, when choosing Stretch Film, consider:

•The pallet's stability upon extended transport

•The performance of the film at varying temperatures

•Resistance to shifting forces

•Compatibility with automated wrapping systems

Analyze the Different Stretch Film Options for Industrial Packaging

Machine Stretch Film vs. Hand Stretch Film

Application	Manual wrapping	Automatic or semi-automatic wrapping
Stretch control	Depends on operator skill	Controlled by machine settings
Packaging consistency	Variable	Higher consistency
Suitable operation	Low-volume packaging	Continuous production environments

For companies packing large pallet volumes, the installation of Machine Stretch Film, in combination with automatic wrapping equipment, will improve the process and offer greater uniformity.

Standard Stretch Film vs. Pre-stretch Stretch Film

Attributes	Standard Stretch Film	Pre-stretch Stretch Film
Method of Stretching	Stretched during packing process	Stretched before packing process
Preference of Material	Lacking in terms of efficient use	Better
Demand on Operator	High	Low
Types of Jobs for which it is Suitable	Typical Packing Jobs	Packaging jobs in Industry

Pre-stretch Stretch Film is preferred by companies to preserve pallet protection and improve film consumption control.

Thin Gauge Stretch Film vs. Heavy Duty Stretch Film

Attributes	Thin Gauge Stretch Film	Heavy Duty Stretch Film
Optimum Use of Material	Less	More
Packing of What Type of Loads	Stable Loads	Loads which are Heavy and/or have sharp edges
Purpose	Efficient Use of Material	For maximum protection

Not just thickness in film matters. Rather, the demanded load is critical.

Optimal Matching of Stretch Film and Pallet Wrapping Machines

Film performance is dependent largely on application technique. High-quality film may perform poorly if the wrapping machine does not ensure optimal control of required stretch.

The premier pallet wrappers adjust:

Film stretch

Turntable wrappers accomplish stretching in a combination of film feeding and load rotation, while more advanced systems may incorporate pre-stretch mechanisms to utilize the film better.

At Yalan Pack, our pallet wrapping systems incorporate stable mechanical structures, adjustable parameters, simple operation and multiple Stretch Film applications.

A complete packaging system should incorporate

•Performance characteristics of stretch film, and

•The control capabilities of pallet wrapping equipment.

Avoid These Common Stretch Film Selection Mistakes

One common mistake is to select only based on price.

Low purchase cost of stretch film does not guarantee a lower packaging cost.

Use of lower cost stretch film can increase:

•Longer length of film

•The need to rewrap

•Damage due to film breaking

Another common mistake is to think that thicker film is always better.

Thickness and protection provided are not necessarily related. Professional determinations considering the following are needed:

•Tensile strength and elongation

•Containment force

•Load condition

The last common mistake is to not consider if the film and machine are compatible.

Given how wrapping systems vary, what is needed also varies. Before purchasing, companies must determine:

•Size of roll

•Tensile elongation of the film

•Setting of the machine

•Production demands

Evaluate Stretch Film Performance For Long-Term Buying

Companies should perform stretch film testing under actual packing conditions prior to selecting a stretch film supplier.

Of crucial importance are testing evaluations such as:

Measurable Aspect	Evaluation Criteria
Stretching performance of the film	Check material optimization
Constant stability of the load	Check pallet load movement resistance
Consumption of the film	Estimate packaging cost
Simulation of transport	Check packaging protection

Packaging in industries often looks at the mechanical behavior of the film and stability of the unit load in selecting Stretch Film.

Building an Optimized Stretch Film Packaging Solution With Yalan Pack

Deciding on Stretch Film is a system decision based on the material, the characteristics of the pallet, and the wrapping system.

An efficient solution to stretch film packaging should take all of the following into consideration.

•Product specifications

•Characteristics of the pallet

•Specifications of Stretch Film

•Wrapping machine specifications

•Operating costs

Yalan Pack offers solutions focused on improving the consistency of stretch film usage. Stretch film is selected according to the characteristics of the product to be packed. Stretch film packaging when combined with reliable wrapping equipment systems, ensures stable, efficient, and scalable pallet packaging systems.

Click here to learn more about Yalan Pack's stretch film and pallet wrapping solutions.

FAQs

Q1. How does Yalan Pack help customers decide on Stretch Film for pallet wrapping?

Yalan Pack analyzes pallet dimensions, weight and overall stability of the load, speed of packaging, and the wrapping requirement to determine the best Stretch Film solution. The goal is to find the balance between the safety level and cost efficiency and consistency of packaging.

Q2. Can Yalan Pack's pallet wrapping machines work with numerous types of Stretch Film?

Yes, we can. Yalan Pack makes pallet wrapping machines which can accommodate different types of Stretch Film, including the standard machine Stretch Film and pre-stretch films, based on the requirements of the customers' packaging.

Q3. What aspects should a business consider when thinking about Stretch Film?

Businesses should think about the following aspects:

•Pallet Weight and dimensions

•Stability and shape of product

•Conditions of transportation

•Required force for containment

•Wrapping equipment

•Efficiency of Film consumption

Stretch Film should not be chosen based on thickness or price, as it may result in greater cost of packaging overall.

Q4. What separates hand Stretch Film from machine Stretch Film?

Stretch Film used for manual wrapping of pallets is called hand Stretch Film. For the pallet wrapping systems which are of a semi-automatic or automatic nature, Stretch Film used is called machine Stretch Film. In regards to the equipment, machine Stretch Film will result in consistent packaging and better control of tension.

Q5. How can Yalan Pack pallet wrapping machines help reduce Stretch Film waste?

Optimum usage of Stretch Film is achieved through the pallet wrapping machines made by Yalan Pack, as it uses a controlled combination of film tension and adjusted machine wrapping parameters with a consistent process and reduces waste of Stretch Film compared to the wasteful nature of manual wrapping.