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Greenhouse Film Blowing Machine

The HOWIE Greenhouse Film Blowing Machine is engineered for producing high-durability agricultural films used in modern commercial farming.

Feature

HOWIE Greenhouse Film Blowing Machine

The HOWIE Greenhouse Film Blowing Machine is engineered for producing high-durability agricultural films used in modern commercial farming. Utilizing advanced extrusion technology, precise thermal regulation, and high-efficiency cooling, our lines consistently produce films featuring:

High Optical Transparency

≥90% light transmission for maximum photosynthesis.

Micron-Level Thickness Uniformity

±3% tolerance to eliminate weak points.

Superior Mechanical Strength

High tensile and tear resistance against harsh weather.

Long-Term Durability

Designed for multi-season outdoor field use.

Technical Specifications

To meet diverse manufacturing demands, HOWIE greenhouse film blowing machines are fully customizable. Below are the standard technical parameter ranges for our single-layer and multi-layer extrusion lines:

Technical Parameter	Standard Range / Options	Customization Details
Processing Raw Materials	LDPE, LLDPE, EVA, HDPE, Metallocene PE (mPE), Anti-Aging & Anti-Fog Masterbatches	Formulated for specific film grades and blowing requirements
Film Layer Structures	Single Layer, 3-Layer, 5-Layer Co-Extrusion	Modular co-extrusion die heads configured per functional requirements
Max. Lay-Flat Width	2000 mm - 16000 mm (Customizable)	Tailored to target greenhouse roof, side-wall, or tunnel film dimensions
Film Thickness Range	0.04 mm - 0.20 mm (40 - 200 microns)	Precision gauge control with micron-level tolerance (±3%)
Screw & Barrel Material	38CrMoALA alloy steel with nitrided treatment (Bimetallic optional)	High wear and corrosion resistance for abrasive EVA or high-filler resins
Extruder Screw Diameter	Φ55 mm - Φ150 mm (Model dependent)	Optimized L/D ratio for thorough polymer melting and homogenization
Cooling System	Dual-lip high-efficiency air ring & Internal Bubble Cooling (IBC)	Rapid polymer quenching for high optical clarity and bubble stability
Winding System	Automatic Surface/Center Winding with Tension Control	Pneumatic auto-cut, automatic roll change, and wrinkle-free take-up

Key Advantages

Precision Thickness Control
Equipped with advanced gravimetric dosing systems and precision extrusion dies, our machines stabilize melt pressure and eliminate surging. This significantly reduces resin waste, prevents weak spots, and ensures consistent batch-to-batch quality that meets strict international standards.

Multi-Layer Co-Extrusion
Combine multiple functional properties into a single high-margin film:

Outer Layer: UV stabilization, anti-dust, and weather aging resistance.
Middle Layer: Core mechanical strength and puncture resistance.
Inner Layer: Anti-drip performance and infrared (IR) thermal insulation.

Energy-Efficient Production
Utilizes IE4 high-efficiency motors, precision gearboxes, and ceramic heating rings with insulated covers to reduce barrel heat loss by up to 30%. Inverter-controlled air blowers precisely match cooling output to line speed for optimized power consumption.

High-Efficiency Cooling & Transparency
Integrated dual-lip air rings and internal bubble cooling (IBC) systems ensure rapid polymer quenching. This delivers crystal-clear optical transparency ($\ge 90%$ light transmission) while maintaining stable, high-speed bubble formation.

Core Applications

Commercial Farming Covers

High light transmission and longevity for large-scale greenhouses.

UV-Resistant Specialty Films

Engineered for intense tropical or high-altitude solar radiation.

Anti-Drip & IR Thermal Films

Prevents internal water condensation and retains night heat to protect crops from frost.

Strict Quality Control

Every machine undergoes a strict 3-stage factory inspection prior to shipment:

Mechanical Check

Structural integrity and gear alignment verified via laser-measuring tools.

Electrical & Safety Test

Full diagnostic check of PLC logic, wiring, and emergency systems.

Full-Load Trial Run

Test-run in-house using actual resin formulas to verify output and gauge uniformity.

Global Support & Services

Turnkey Planning

Factory layout and utility mapping assistance.

Installation & Training

Global on-site or remote engineering support for setup and operator training.

Spare Parts

Guaranteed rapid dispatch of critical replacement components.

FAQ

Q: What materials can this machine process?

A: Polyethylene-based resins including LDPE, LLDPE, EVA, and metallocene PE, blended with specific UV, anti-fog, or thermal masterbatches.

Q: Can we produce multi-layer functional films?

A: Yes. HOWIE provides customized 3-layer and 5-layer co-extrusion configurations designed for UV protection, anti-drip, and thermal insulation.

Q: What is the standard production lead time?

A: Depending on the layer configuration and customization, manufacturing and testing typically take 60 to 90 days.

Q: Do you support overseas installation?

A: Yes, our engineers travel globally for on-site machine installation, calibration, and hands-on staff training.

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