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5/7-Layer Cast LLDPE Machine Stretch Film | High-Yield Pallet Wrap

Engineered for semi-automatic and high-speed fully automatic stretch wrapping systems, this machine-grade LLDPE film delivers up to 350 percent pre-stretch capacity. Formulated with 100 percent virgin mLLDPE and C8 resins, it maintains high load retention force and puncture resistance to minimize film breakage during high-speed turntable and rotary arm wrapping.
Machine stretch film automates pallet packaging for high-volume warehouses, distribution centers, and production plants.

Material: 100 percent Virgin LLDPE blended with Metallocene (mLLDPE) and C8 Octene resins
Processing Technology: 5-Layer and 7-Layer Co-Extrusion Cast Extrusion (Nano-layer option available)
Standard Widths: 500 mm (20 inch) and 750 mm (30 inch)
Thickness Range: 12 micron to 30 micron (47 Gauge to 120 Gauge), including High-Yield Nano Grades
Machine Compatibility: Turntable, Rotary Arm, Rotary Ring, and Horizontal Orbital Wrappers (Lantech, Wulftec, Robopac, Cousins, Signode certified)
Standard Core ID: 76 mm (3 inch) Heavy-Duty High-Torque Paper Core
Regulatory Compliance: ISO 9001 Certified Plant, REACH Compliant, RoHS Compliant, FDA Suitable for Indirect Food Contact

Machine Stretch Hood Film
Tensile Elongation at Break:≥500%. Tensile Strength at Break:MD ≥25 MPaTD (Transverse Direction) ≥18 MPa. Adhesion (Normal Force):≥2.5 N/cm². Puncture Resistance:≥35 N.
Stretch Packing
Tensile Elongation at Break:≥500%. Tensile Strength at Break:MD ≥25 MPaTD (Transverse Direction) ≥18 MPa. Adhesion (Normal Force):≥2.5 N/cm². Puncture Resistance:≥35 N.
Machine Roll Stretch Film
Tensile Elongation at Break:≥500%. Tensile Strength at Break:MD ≥25 MPaTD (Transverse Direction) ≥18 MPa. Adhesion (Normal Force):≥2.5 N/cm². Puncture Resistance:≥35 N.
Stretch Wrap 20 X 5000
Material:PE. Model:0.02mm. Specification:Customizable. Features:Strong adhesion, high tensile strength, odorless..
Stretch Wrap For Machine
Material:PE. Model:0.02mm. Specification:Customizable. Features:Strong adhesion, high tensile strength, odorless..

Film Structure & Material

The multi-layer cast co-extrusion process arranges distinct polymer layers to balance stretchability, cling control, and puncture propagation resistance.

01.

Film Layer Architecture:

Layer A (Inside): Controlled Cling Layer - Precision Tackifier Formulation
Layer B: Structural Reinforcement - Metallocene LLDPE (mLLDPE)
Layer C: Core Yield Layer - High-Elongation C8 LLDPE Resin
Layer D: Puncture Barrier Layer - Heavy-Duty mLLDPE Matrix
Layer E (Outside): Non-Cling / Slip Layer - Low-Friction LLDPE Polymer

02.

Key Material Characteristics:

Metallocene LLDPE (mLLDPE) Core: Delivers high tensile strength at maximum pre-stretch ratios, absorbing kinetic shocks from shifting cargo corners without web snapping.

Differential Cling (1-Side Cling): The internal layer grips the cargo surface securely, while the smooth outer layer prevents adjacent pallets from sticking during truck loading and warehouse racking.

Zero-Recycled Virgin Resin: Eliminates resin gel contamination and micro-inclusions, ensuring structural uniformity and preventing high-speed snapping during rapid rotation.

Technical Specifications

Performance Parameter	Standard Machine Film	High-Performance Power Pre-Stretch Film	Test Standard / Method
Gauge / Film Thickness	17–23 µm (68–90 Gauge)	12–15 µm (47–60 Gauge)	—
Pre-Stretch Capacity	200–250%	280–350%	—
Tensile Strength at Break – MD	≥42 MPa	≥135 MPa	ASTM D882
Tensile Strength at Break – TD	≥30 MPa	≥50 MPa	ASTM D882
Elongation at Break – MD	450–550%	120–160% at pre-stretched state	ASTM D882
Dart Drop Puncture Impact	≥180 g	≥210 g	ASTM D1709
Cling Force	≥0.80 N/cm	≥0.65 N/cm	ASTM D5458
Standard Roll Weight	15.0–17.5 kg (33–38.5 lbs)	12.5–16.0 kg (27.5–35.2 lbs)	—

Application & Equipment Matching Guide

01/

Uniform Boxed Loads (Under 600 kg / Smooth Edges): 12 to 15 micron Power Pre-Stretch Film (250 percent to 300 percent stretch). Ideal for soft start/stop turntable wrappers.

02/

Medium-to-Heavy Industrial Cargo (600 kg to 1,100 kg / Mixed Cartons): 17 to 20 micron Standard Machine Film (200 percent to 250 percent stretch). Recommended for standard rotary arm systems operating up to 35 RPM.

03/

Severe / Irregular / Sharp Loads (Over 1,100 kg / Metals, Castings, Brickwork): 23 to 30 micron Heavy-Duty Machine Film. Formulated with extra C8 resin for high puncture resistance against sharp corners.

04/

High-Speed Automatic Lines (>40 Pallets/Hour): High-Clarity 7-Layer mLLDPE Film with edge-reinforcement treatment to eliminate tailing during automatic cut-and-wipe cycles.

Performance Benefits

High Tear Propagation Resistance:

Prevents small corner punctures from expanding into full-width film tears across the web during wrapping.

Consistent Unwind Force:

Ensures stable tension from the outer layers down to the core, preventing machine carriage strain and optical sensor errors.

Barcode Scanning Clarity:

High clarity and low haze properties allow optical barcode scanners to read shipping labels through multiple wrapped layers.

Restorative Load Containment:

Retains continuous elastic memory after application, holding heavy loads rigid during long-haul vibration.

Hand vs Machine Application Comparison

Operational Throughput:

Machine film targets high-volume operations wrapping 20 to 60+ pallets per hour. Hand film suits decentralized or low-volume wrapping under 15 pallets per hour per operator.

Pre-Stretch Capability:

Machine film utilizes powered carriage rollers to stretch film between 200 percent and 350 percent before applying it to the load. Hand film relies on operator physical strength (typically 50 percent to 150 percent).

Roll Weight and Core Specs:

Machine rolls weigh 12 kg to 18 kg on a heavy-duty 76 mm (3 inch) paper core designed for high-torque spindle mounting. Hand rolls weigh 1.5 kg to 4.0 kg for manual carrying.

Material Consumption:

Powered machine pre-stretch reduces overall film weight per wrapped pallet by 30 percent to 50 percent compared to standard hand application.

Customization & OEM Distributor Services

Custom Widths & Lengths:

Standard 500 mm and 750 mm widths, with roll weights up to 20 kg or continuous jumbo rolls for localized slitting.

Color & Additive Formulations:

Opaque black (security/UV protection), blue tinted, anti-static masterbatch, and VCI corrosion inhibitors for steel and machinery wrapping.

Core Specification Control:

76 mm (3 inch) inner diameter cores with customizable wall thickness (8 mm to 12 mm) and crush strength ratings to withstand high spindle brake torque.

OEM & Private Labeling:

Core inner-wall logo printing, branded outer corrugated packaging, custom pallet stacking patterns, and barcode label integration.

Manufacturing & Quality Control

Production takes place on automatic multi-layer cast extrusion lines featuring continuous thickness monitoring.

Manufacturing Sequence:

[ Virgin Resin Dosing ] -> [ Gravimetric Blending ] -> [ Cast Extrusion ]
|
[ Automatic Winding ] <- [ Beta-Ray Thickness Gauge ] <- [ Chill Roll Casting ]
|
[ Core Weight Verification ] -> [ Lab Tensile & Puncture QC ] -> [ Robotized Palletizing ]

Quality Control Protocols:

Closed-Loop Gauge Profiling: Online Beta-ray scanners adjust die bolts automatically, maintaining film thickness uniformity within +/- 2.5 percent across the web width.

High-Speed Tensile Testing: Every master roll batch undergoes lab testing for ultimate elongation, 200 percent/300 percent stretch force, and puncture resistance per ASTM D882/D1709.

Core Separation Precision: Automated core chucks and slitting blades ensure flat, notch-free roll end-faces, eliminating starting fracture points during high-speed unwind.

Inline Net Weight Check: Every roll is weighed on automated line scales to verify net film content against paper core weight prior to pallet packaging with +/- 1 percent accuracy.

Packaging, Loading & Logistics

Packaging Setup:

Rolls individually vertical-stacked on export pallets with protective top/bottom cardboard layer sheets, corner edge boards, and outer stretch wrapping. Bulk box packaging available upon request.

Container Loading Capacity:

20ft Container: Approx. 10,000 kg to 11,500 kg net weight.
40ft HQ Container: Approx. 23,000 kg to 25,500 kg net weight (optimized to reach maximum container payload capacity).
Lot Traceability: Printed roll end-labels and pallet tags contain lot batch numbers linked to raw material melt index logs and factory test reports.

FAQ

Q: How do you verify the pre-stretch percentage claim on high-performance machine stretch film?

A: Pre-stretch capacity is measured on our laboratory stretch testing machinery and verified on standard power pre-stretch wrappers (such as Lantech and Wulftec test rigs). We measure the exact length of a 1-meter unrolled section after mechanical elongation. A 300 percent pre-stretch rating means 1 meter of film extends to 4 meters without snapping or structural neck-down beyond acceptable limits.

Q: What causes film snapping on high-speed automatic wrapping machines, and how does your film address it?

A: Film snapping usually results from resin impurities (gels), uneven thickness variance, or notched roll edges. We prevent this by using 100 percent virgin mLLDPE resin (zero recycled content), closed-loop Beta-ray thickness monitoring within +/- 2.5 percent tolerance, and high-precision slitting blades that produce smooth roll end-faces free of micro-notches.

Q: Can your machine stretch film reduce overall packaging costs on automated wrapping lines?

A: Yes. By transitioning from a standard 20 micron film at 150 percent stretch to a 12 or 15 micron high-performance film operating at 280 percent to 300 percent pre-stretch, total film consumption per pallet decreases by 30 percent to 45 percent. This reduces material cost per wrapped load while maintaining equivalent or higher load containment force.

Q: How does your paper core construction handle high spindle torque on automatic wrappers?

A: Machine stretch film rolls experience high rotational torque and brake friction during operation. We supply heavy-duty 76 mm (3 inch) paper cores with wall thicknesses from 8 mm to 12 mm and high radial crush strength. This prevents core collapsing, slipping, or inner-wall delamination on wrapper spindles.

Q: What private-label branding options do you offer for regional packaging material distributors?

A: We provide full OEM packaging services for distributors. Options include custom graphic printing on the core inner wall, private-label box packaging, custom carton branding, roll weight specifications tailored to regional market norms, and customized pallet packing configurations with specific barcoding.

Q: What test documentation is provided with container orders to verify quality compliance?

A: Every shipped container includes a Factory Inspection Certificate of Analysis (COA). This document details lot-specific test data for film thickness variance, ultimate elongation percentage, tensile break strength, dart drop puncture resistance (tested under ASTM D882 and ASTM D1709), and net roll weight compliance. Retention samples from each batch are kept in our lab for 12 months for quality tracking.

Huizhou Yufeng New Materials Co., Ltd. is one of the most experienced machine stretch film manufacturers and suppliers in China, featured by quality products and good price. Please feel free to wholesale durable machine stretch film for sale here and get pricelist from our factory. We also accept customized orders.