Cut film, cut costs: smarter pallet wrapping without compromising stability
If you are being asked to shave cost per pallet before the spring budget reset, pallet wrap is a fast, low-risk place to look. Most sites run conservative settings, add extra rotations “just in case,” and carry legacy film specs that no longer match the loads being shipped today.
This article shows how to reduce film grams per pallet while maintaining, and often improving, containment. We will cover pre-stretch, load containment settings, and optimal wrap patterns. We will also compare turntable, rotating-arm and robotic wrappers for unstable loads, outline a simple containment force test you can run in-house, and close with a compliance reminder for UK waste regulations.
Start with the objective, not the film gauge
The goal is stable, damage-free pallets at the lowest safe film mass. That means tuning machine settings and patterns to your actual load rather than defaulting to heavier film or extra rotations. Across UK warehouses we typically see 20 to 40 percent film savings when pre-stretch, tension and pattern are matched to load type and height, then verified with a quick containment test.
If you need guidance on film choice and machinery options, our page on stretch wrap machines sets out how modern systems deliver consistent containment with less plastic.
- Helpful resource: learn more about stretch wrap machines and service options at Severn Packaging’s pallet wrapping machines page.
Pre-stretch 101, why it matters and when to use it
Pre-stretch is the mechanical elongation applied by a powered carriage before film reaches the load. Two things happen when you increase pre-stretch correctly:
- You create more wrap coverage from the same roll, lowering film cost per pallet.
- You develop elastic recovery, which delivers holding force around the load without over-tensioning corners.
Typical machine ranges are 150 to 300 percent pre-stretch. Light, uniform, well-cubed loads often tolerate higher pre-stretch and lower tension; irregular or sharp-cornered loads may need a step down to protect edges while still achieving containment through more contact layers at the top and bottom zones.
Pre-stretched film, supplied already elongated on the roll, is different. Use it for manual wrapping or low-spec machines without powered pre-stretch, where consistent hand tension is hard to achieve and safety or ergonomics drive the choice. For machine applications with a powered carriage, standard machine stretch wrap with tuned settings usually wins on stability and cost.
- Helpful resource: for film and service guidance see our stretch wrap and pallet wrapping pages.
The correct way to wrap a pallet, patterns that work
There is no single pattern for every load, but a repeatable approach helps:
- Secure the base. Start with 2 to 3 rotations at the bottom to lock film under the pallet deck or around the pallet base, ensuring overlap with the first wrap. This builds a stable foundation and reduces slip.
- Climb with controlled overlap. Move up the load with 40 to 60 percent overlap, keeping film banding consistent. Avoid pulling the film to the point of corner crush; use machine force-to-load control if available.
- Reinforce the top. Apply 2 rotations across the top third, including a top cover pass if dust or moisture is a risk, then descend to capture the shoulders. Finish with a secure tail, ideally with an automatic cut and wipe to avoid tails peeling in transit.
How many wraps should you apply? For well-cubed, single-SKU pallets, aim for 8 to 12 revolutions total, tuned by containment test results. Mixed or unstable loads may need 12 to 16, often redistributed into targeted bands at the base and top rather than simply adding full-height passes.
Blown vs cast film, which is better
Neither is universally better. It depends on your application:
- Blown film typically offers higher puncture resistance and better cling in colder environments. It is often chosen for aggressive edges, irregular loads, or when ambient temperatures dip.
- Cast film usually provides clearer optics, quieter unwind, and more consistent thickness, which helps with machine feeding and calibration. Many automated wrappers run very efficiently with cast film at higher pre-stretch.
Run a quick A/B trial with your actual loads and machine. The winner is the film that achieves target containment with the fewest grams per pallet and minimal breaks.
Machine types compared, choosing for unstable loads
- Turntable wrappers. The pallet rotates on a deck while the carriage moves vertically. Best for standard, stable loads and mixed everyday work. Limitations arise with very tall, top-heavy or loosely stacked pallets where rotation risks collapse.
- Rotating-arm wrappers. The pallet stays stationary while the arm rotates. Ideal for unstable, heavy or very tall loads because nothing on the pallet is forced to spin. Throughput is consistent and repeatable.
- Robotic wrappers such as the Robot S7. The wrapper travels around a stationary pallet, useful for very large, odd-sized or floor-bound pallets and busy aisles. Great for sites with variable heights, locations without space for a fixed machine, or operations that need to bring the wrapper to the load. Consistency is strong, and containment can be tuned per recipe.
A practical guide: if the load is at risk when turning, choose a rotating-arm or a mobile robot rather than turning down speed on a turntable and adding film to compensate.
- Explore options: see Robopac pallet wrappers including the Robot S7 on our pallet wrapping machines page.
Containment force, a simple test protocol you can run
You do not need a lab to verify holding force. Use a handheld stretch film force gauge if available, or a consistent manual pull test as a proxy.
- Select three pallets per load type. Wrap with your proposed settings and film.
- Mark three test bands per pallet: base, mid-height, and top third.
- At each band, insert the gauge plate under the film and pull to 2 to 3 cm displacement, recording the force in newtons or pounds. If you lack a gauge, apply a consistent two-hand pull and score 1 to 5 for resistance, then correlate with in-transit results.
- Target ranges vary by load mass and fragility, but as a rule of thumb, heavier or mixed loads require higher containment at the base and shoulders than at mid-height.
- Repeat after 24 hours to check relaxation. If force has fallen below target, add a targeted band at base and top rather than adding full-height rotations.
Document the recipe: film type and gauge, pre-stretch, force-to-load or brake setting, wrap count at base and top, travel speed, and any roping at the top. Lock these as SOPs and train operators.
How to reduce plastic use without risking damage
- Increase pre-stretch within the film’s window, then reduce tension to avoid corner crush while maintaining containment through elastic recovery.
- Redistribute film to high-risk zones. Two extra base bands often outperform two extra full passes.
- Switch to a higher-performance, thinner film if your tests support it. Do not down-gauge blindly; verify with the containment protocol above.
- Eliminate tails with cut-and-clamp systems to prevent unravel during handling.
- Maintain film in conditioned storage and allow acclimatisation to room temperature, which improves stretch and cling predictability.
Racking and in-aisle practice
Should pallets be wrapped in racking? Only if they are at genuine risk of unitisation failure during put-away or pick. Over-wrapping pallets purely for racking ties up plastic and time. Instead, focus on correct containment at despatch. Where partial-pick or movement in racking is common, add targeted shoulder bands or apply a top strap rather than duplicating full-height wraps.
UK waste-compliance reminder
Under UK producer responsibility and duty-of-care rules, you must minimise packaging waste and ensure materials are handled by licensed carriers with proper records. Reducing film grams per pallet supports these obligations and can help with Plastic Packaging Tax exposure and reporting. Keep your film trials, SOPs and mass-per-pallet data on file to evidence waste minimisation.
- Sustainability resource: see how Severn Packaging approaches sustainable packaging and reporting support.
Quick FAQ
- What is the correct way to wrap a pallet? Start with 2 to 3 base rotations, climb with 40 to 60 percent overlap under controlled tension, reinforce the top third, then descend to capture shoulders, finishing with a secure tail. Validate with a containment test.
- Is blown stretch wrap better than cast? Blown is often tougher against puncture and good in cold; cast runs quieter, clearer and very consistently on machines. Choose based on the fewest grams per pallet that meet containment.
- How many times should you wrap a pallet? Typically 8 to 12 total rotations for stable, uniform loads; 12 to 16 for mixed or unstable pallets, biased to base and top rather than full-height additions.
- What is pre-stretched film and when to use it? Pre-stretched film is elongated during manufacture and supplied ready to apply. It is best for manual wrapping or basic machines without powered pre-stretch. For powered carriages, standard machine stretch wrap with tuned pre-stretch usually delivers lower cost per pallet.
- How do you reduce plastic use in pallet wrapping? Increase pre-stretch, tune tension, target base and top bands, trial thinner high-performance films, and verify with a containment test.
- Should pallets be wrapped in racking? Only where movement and pick activity create real risk. Aim to achieve correct containment at wrap, then add targeted bands if racking conditions demand it.
Plan a fast pallet-wrap audit
If you want data-backed savings before budgets reset, book a pallet-wrap audit. We will review your current film, settings and patterns on live loads, run the containment protocol, and leave you with a tuned recipe per load type. To explore machines alongside the audit, visit our pallet wrapping machines page or our stretch wrap services page, and for broader sustainability objectives see our sustainable packaging guidance.
