Machine Pre Stretched Film

We're a trusted China supplier of Machine pre stretched film, and unlike standard cast film that relies on your wrapper to do the hard stretching work, ours is already oriented at our factory. That means your maintenance team spends less time fixing snapped pre-stretch rollers, and your electrician sees lower amp draws on your wrapper motors. Every roll runs with a consistent pre-stretch memory—no soft spots where the film relaxes mid-wrap and lets a pallet corner pop. Yuhong Plastic stock 12/14/17/20μm gauges, 450/500/750mm widths, 1500/2000/3000m lengths, with 3" and 6" cores that fit Lantech, Robopac, Wulftec and Orion wrappers without adapter changes. Small trial batches and full-container orders both work; we'll flex lead time around your production cycle so you don't have to pause your line for a film switch.

Technical Specifications

Our pre stretched machine pallet wrap carries a fixed 280% factory-set pre-stretch ratio—verified by our inline laser gauge every 10 seconds during production, not adjusted on your warehouse floor. We run a 3-point thickness check on every 500 meters of the pre-stretched web: tolerance stays within ±1.2μm across the full roll width, so you don't get thin edges that snap at 30 rpm. Below are the specs our Michigan bottling client asks for every quarter:

We attach a 1-page spec sheet to every bulk shipment—no vague "meets industry standards" fluff, just the numbers your quality team needs for audits.

Packaging & Shipping

For energy saving stretch film bulk orders, we skip the extra corrugated spacers most suppliers use—our nested carton design cuts packing material waste by 12%, and the lighter roll weight (avg. 18kg for 3000m rolls vs 24kg for standard 23μm cast film) reduces fuel consumption per 40HQ container by ~3%. Every roll gets wrapped in 40μm PE film first—we tested 6 different PE grades last year to find the one that doesn't leave residue on the film surface when unrolled in cold storage. Rolls sit tight in export cartons with 5cm foam buffers on both ends to prevent core crush during rail transport; for sea freight to Southeast Asia, we add an extra outer waterproof woven bag at no charge if your port has high humidity. We take 3 photos per shipment: one of the loaded pallets, one of the sealed container door, one of the bill of lading—send them to you before the ship leaves Ningbo port, so you know exactly what's en route.

Sample, Warranty & Return Policy

When you request samples of our pre stretched film for wrappers, we'll ask for your wrapper model (Lantech S-series, Robopac Genesis, etc.) first—we've logged performance data for 17 common wrapper models over 9 years, so we can recommend the right gauge before you run a single test roll. Free A4 swatches ship via DHL within 3 days; full 300m test rolls cost $12 each (deductible from your first bulk order if you buy). All our Product carries a 12-month warranty from the delivery date: if the film breaks at a rate higher than 0.4% per 1000m during normal operation, we'll replace the affected batch for free, or issue a refund proportional to the defect rate. Custom gauges/widths are non-returnable for non-quality issues, but we'll send a pre-production sample for your sign-off first—we've only had 2 spec mismatch cases in the last 3 years, both because the client changed their wrapper settings without telling us.

Customization & Production Process

Yuhong Plastic's low tension machine stretch wrap isn't just standard film pulled thinner—it's the output of a purpose-built cast line we've tuned over nine years to solve real-world wrapping headaches. Back in 2015, a German bottled water client reported burning out wrapper motors every two weeks; standard 23μm cast film required 250% on-site pre-stretching, pushing their equipment past its design limit. We rebuilt our line to handle orientation at the factory instead, cutting on-site tension requirements by roughly two-thirds.

Today, we run film through a dual-stage pre-stretch roller system that orients polymer chains under controlled heat and tension, locking in a fixed 250–320% stretch ratio before the film hits your warehouse. An inline laser gauge scans thickness every 10 seconds across the full web width, keeping tolerance within ±1.2μm to eliminate thin spots that cause breaks at 30rpm. We blend in 28% metallocene LLDPE to retain 19N puncture resistance at 14μm gauge—enough to handle sharp PET bottle corners without adding unnecessary weight.

Our process parameters are listed in the recommended material guides for three leading wrapper manufacturers, including Lantech and Robopac, and our technical team presents annual updates on low-tension wrapping at the European Packaging Expo and China Plastics Exhibition. We contributed to the drafting of China's Pre-stretched Polyethylene Film for Packaging industry standard (QB/T 5687-2022), so every roll we produce aligns with the performance benchmarks most logistics teams already use for audits.

Every roll carries a unique batch code printed on the core, linked to five years of archived production data—including real-time roller pressure, cooling airspeed and pre-stretch ratio readings—available for client audits on request. A East China 3PL client switched to our film in 2023 and cut their wrapper downtime from 1.2% to 0.3% annually, citing our consistent batch performance as the key reason they included our film in their public ESG reporting as a plastic-reduction win.

Customization starts at the extruder: we adjust pre-stretch ratios, thickness (12–20μm), width (450–750mm) and core diameter (3"/6") to match your exact load weights and wrapper models. For clients targeting ESG goals, we can blend in up to 50% post-consumer recycled resin without sacrificing the low-tension performance that protects your equipment. We'll send a digital proof of your custom specs within 24 hours of your inquiry, and pre-production samples are available for on-machine testing before full runs.