3-Layer Stretch Film Machine

3-Layer Stretch Film Machine

Revolutionize your production with our advanced three-layer stretch film machine. Engineered for superior strength and exceptional cost efficiency, this system delivers high-performance film with...

The 3-layer stretch film machine is designed to deliver an optimal balance between mechanical performance and material efficiency. Using advanced ABC three-layer co-extrusion technology, it produces a composite film structure consisting of an outer strength layer, a middle toughening or recycled layer, and an inner cling layer. Compared with traditional 2-layer films, this structure significantly enhances overall performance, improving puncture resistance by 30–50% at the same thickness, achieving a stretch ratio of over 350%, and reducing raw material costs by approximately 15–20%.

Description

Revolutionize your production with our advanced three-layer stretch film machine. Engineered for superior strength and exceptional cost efficiency, this system delivers high-performance film with...

The 3-layer stretch film machine is designed to deliver an optimal balance between mechanical performance and material efficiency. Using advanced ABC three-layer co-extrusion technology, it produces a composite film structure consisting of an outer strength layer, a middle toughening or recycled layer, and an inner cling layer. Compared with traditional 2-layer films, this structure significantly enhances overall performance, improving puncture resistance by 30–50% at the same thickness, achieving a stretch ratio of over 350%, and reducing raw material costs by approximately 15–20%.

The machine operates through a coordinated three-extruder system, where each extruder processes different resin formulations such as LLDPE, LDPE, metallocene materials, or recycled content. Extruder A typically forms the outer strength layer to provide durability, Extruder B produces the middle layer for toughness or cost optimization, and Extruder C creates the inner cling layer for reliable adhesion. Each extrusion unit independently controls temperature, typically within a range of 180–240°C, ensuring precise melting and stable material flow. The molten resins are then combined in a three-layer distributor and flat T-die to form a uniform ABC film structure.

After extrusion, the film is rapidly cooled on a large-diameter chill roll, which ensures excellent transparency and maintains thickness uniformity within tight tolerances. A closed-loop thickness control system, using X-ray or infrared sensors, continuously monitors the film gauge and automatically adjusts die gaps and extrusion output in real time. The film then passes through a traction and stretching system, where controlled speed ratios impart pre-stretch capability of up to 350%, enhancing its performance during application. Edge trimming units remove excess material for inline recycling, while an automatic winding system enables continuous, high-efficiency production with stable roll quality.

With its enhanced strength, superior stretchability, and optimized material usage, the 3-layer stretch film machine is widely used in industrial logistics, building materials packaging, and heavy-duty pallet wrapping. It provides a reliable and efficient solution for manufacturers seeking improved film performance while maintaining cost control.


Quick Comparison: 2-Layer vs 3-Layer Stretch Film

Parameter2-Layer Film3-Layer Film
StructureAB (cling + strength)ABC (strength + toughening + cling)
Puncture ResistanceStandard (baseline level)30–50% higher
Max Stretch Ratio200–300%300–400%
Raw Material CostStandard (baseline level)15–20% lower (middle layer can use recycled material)
Film PerformanceBasic protection for general useEnhanced durability and load stability
Best ApplicationLight, regular-shaped loadsHeavy, irregular, high-demand loads


Specifications

SpecificationHLCPE75/55-1000HLCPE90/65/65-1500HLCPE120/80/80-2000Unit
Product Width500-10001500(500×3rolls)2000(500×4rolls)mm
Output80320400-600kg/hr
Product Thickness0.01-0.050.01-0.050.01-0.05mm
Mechanical Design Line Speed80250250m/min
L/D33:133:133:1
Screw Diameterφ75/φ55φ90/φ65/φ65φ120/φ80/φ80mm
Total Power110150350kw
Power Supply380/3/4/50380/3/4/50380/3/4/50 Volt/Ph/Line/Hz
Motor Power30/18.550/22/22132/37/37kw
Overall Dimensions10439*4140*293914000×6500×450014000×6500×5000(L×W×H)mm

Product Comparison

Comparison ItemOur MachineryOther Manufacturers
T-Die

Using JC-TIMES high-precision T-DIE, the die lip gap tolerance is controlled within ±0.01mm, and the nitriding hardness reaches HRC ≥ 58, ensuring uniform and stable film thickness.

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Ordinary T-Die features low processing precision (tolerance > 0.05 mm) and hardness below HRC45. They are prone to wear and deformation, resulting in uneven film thickness.

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Chain

Hualiang timing belt delivers zero-error transmission synchronization, requires no lubrication or maintenance, operates at a noise level of less than 65 dB, and ensures the film roll is perfectly smooth and flawless.

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Ordinary chains have a cumulative error of more than 0.5 mm, require regular lubrication, and their vibration causes convex ribs on the film roll.

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Walled Barrel &Screw Design

Thick-Walled Barrel: Enhanced thermal retention minimizes heat loss, reducing power consumption by 15–20% compared to thin-walled barrels. Uniform Melt Temperature: Maintains stability within ±5°C, ensuring consistent bubble formation and achieving a thickness tolerance of ±3%.

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Thin-Walled Barrels: Rapid heat dissipation requires constant reheating, resulting in 25–30% higher energy waste. Temperature Fluctuations: lead to uneven melting and thickness variations (±8–10%).

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Motor

The Permanent Magnet Synchronous Motor (PMSM) reduces energy consumption by 20%, delivers torque control accuracy of ±1%, and enables instant start-stop response.

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Asynchronous motors feature higher operational inertia and an IE2 efficiency of 94.2%.

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Heating System

Hualiang Infrared Heating System boosts thermal efficiency by 40% and reduces overall energy consumption by 20%.

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Conventional heating coils feature slow heating, inadequate insulation, and high power consumption.

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