Home/Products/Blown Film Lines
Blown film line
Ibc 3 Layer Film Blowing Machine
Our 3 Layer Film Blowing Machine is a high-performance, high-precision 3 Layer Film Blowing Machine specialized in manufacturing multi-layer films with superior thickness uniformity, excellent transparency, and outstanding mechanical properties.
Product overview
What it is,
what it makes
Our 3 Layer Film Blowing Machine is a high-performance, high-precision 3 Layer Film Blowing Machine specialized in manufacturing multi-layer films with superior thickness uniformity, excellent transparency, and outstanding mechanical properties. Integrating advanced IBC internal bubble cooling technology, precision extrusion control, and fully automated winding system, this upper rotary blown film machine is ideal for producing high-quality LDPE, LLDPE, HDPE, and EVA films widely used in packaging, agriculture, industrial laminates, and other fields. The three-layer co-extrusion blown film machine adopts a scientific outer/middle/inner three-layer structure with precise material distribution, ensuring optimal film performance for different usage scenarios. Equipped with high-quality extruders (SJ90/30 main + SJ75/30 × 2 auxiliary), the machine features 38CrMoALA alloy nitride steel screws (30:1 L/D ratio) that provide superior plasticizing effect and wear resistance, laying a solid foundation for high-quality film production. Our machines comply with ISO 12100 safety standards and are certified by CE. As a core advantage of this machine, the IBC internal bubble cooling system is equipped with ultrasonic bubble diameter control (±5 mm accuracy), ensuring stable bubble shape and consistent film size. This system employs dual-speed fans (7.5 KW each) that enable rapid and uniform cooling, effectively improving film forming efficiency and product quality. The combination of precise control and efficient cooling makes it a cornerstone of the machine’s superior performance and co
Technical specifications
Spec sheet
Working parameters for the ibc 3 layer film blowing machine. Final configuration is matched to your material and output target.
| Parameter | Value |
|---|---|
| Model | SJ-3 |
| Max Output | 500 kg/h |
| Film Width (Folded) | 2600mm |
| Thickness Range | 0.025 – 0.15mm |
| Tolerance | ≤ ±5% |
| Extruders | SJ90/30 (1) + SJ75/30 (2) |
| Screw Material | 38CrMoALA (Nitrided) |
| IBC Cooling Accuracy | ±5mm |
| Power Consumption | ~250KW (380V, 50Hz) |
| Machine Dimensions | 12.5m × 8.5m × 14m |
Configuration
Configuration & key features
The SJ-3 line is built around five sub-systems: extrusion, die and air ring, internal bubble cooling, haul-off and winder, and electrical control.
Three extruders, one control
- 1× SJ90/30 + 2× SJ75/30 single-screw extruders, L/D 30:1
- 38CrMoALA nitrided alloy steel screws — wear and corrosion resistant
- 55 kW or 75 kW extruder motors with Delta inverters
- 24-zone automatic temperature control; ceramic and stainless heating rings with air over-temperature cooling
- Hardened tooth-surface gearbox with forced oil circulation and water cooling
IBC 700 die, balanced flow
- IBC 700 mm die with 2.2 mm gap, 40Cr mold steel
- Chrome-plated, dead-zone-free flow channels for even layer distribution
- Stainless strip heating, about 25 kW; 22 kW inverter-controlled external cooling fan
- Taiwan-style 1680 mm dual-port air ring
Ultrasonic IBC control
- 7.5 kW inlet + 7.5 kW outlet variable-frequency fans
- Ultrasonic bubble diameter sensors with PLC control, accuracy ±5 mm
Stable haul-off, neat rolls
- 14 m three-layer tower with inner walkway and air-cushion rotating guide rollers
- Horizontal ±360° rotating haul-off; 1.5 kW variable-frequency pulling motor
- Max bubble diameter 2600 mm; max folded width 2600 mm
- Dual-position automatic friction winder with Ø325×2800 mm nitrile rubber roller
- Rewind speed 10–80 m/min; max roll Ø800 mm; four Ø74 mm air shafts
- Flying-knife changeover, length metering horn and waste-free edge slitting
Centralized PLC control
- 10.4-inch touch screen with PLC centralized control
- Delta inverters; Schneider low-voltage components; P+F ultrasonic sensor; Parker rodless cylinder
- 380 V / 50 Hz three-phase, about 250 kW installed
Add-on systems
- Hydraulic screen changer with hydraulic station
- Three-layer co-extrusion micro weight system
- 10 kW corona treater (closed frame, Ø90×2700 mm)
- 20 HP chiller
Price & quotation
Price on request — factory-direct
Every Ibc 3 Layer Film Blowing Machine is built to your configuration, so the final price depends on the options you choose. The main price drivers are:
- Machine width and output — wider and faster configurations cost more.
- Layer, color or sealing-lane count.
- Automation level — servo drives, automatic features and PLC control.
- Certification and market adaptation — CE, EAC, 220V/60Hz or 380V/50Hz.
- Shipping terms — FOB Ningbo/Shanghai, CIF or door-to-door, plus installation and training.
Send us your target output, film/bag size and voltage — our engineers reply with a factory-direct quotation within one business day.
Get a Quote →Read the 2026 blown film machine price guide for indicative factory-direct ranges.
Buyers ask
Frequently asked
questions
How much does this machine cost?
Factory-direct pricing depends on your configuration — width, output, layer or color count and automation level. Send us your target specs and we confirm an exact price within one business day.
What affects the price of this machine?
The main price drivers are machine size and output, number of layers or colors, servo versus stepper drives, automation features, certifications (CE/EAC), voltage adaptation, and shipping and installation terms.
What film width and thickness can this machine produce?
The line handles the width and thickness range shown in the spec sheet — typically 500–2500 mm film width and 0.01–0.12 mm thickness, depending on the model. The exact range for your configuration is confirmed in the proposal.
What materials does it process?
Standard blown film lines process LDPE, LLDPE, HDPE, MDPE and EVA; multi-layer models also run PA and EVOH barrier layers for high-barrier packaging film.
How long is delivery?
Typical delivery is 15–30 days from order confirmation, depending on the configuration and current production schedule. We confirm the exact lead time in the quotation.
Is the machine CE certified?
Yes. Our machinery is assessed to the Low Voltage Directive 2014/35/EU, Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU. The certificate of conformity is provided with the machine.
Can the line be customized?
Yes — film width, output, layer structure, die diameter and automation level are all configurable. Tell us your material and daily output target and we will size the line around it.
Do you provide installation and training?
Yes. Our engineers supervise installation and commissioning on site, run the first production trials and train your operators — on-site or remotely.
Related products
More from
our line-up
Mini Film Blowing Machine
Welcome to the ultimate solution for flexible, small-scale film production.
Monolayer Blown Film Machine
In the competitive landscape of plastic packaging, performance and reliability are the keys to profitability.
Pp Film Blowing Machine
The PP film blowing machine provides a solution to meet these needs.
Aba Film Blowing Machine
The ABA film blowing machine has become a cornerstone in the plastic packaging industry.
Get your custom solution
Engineered around
your production
Tell our engineering team your output target and facility conditions. We design and build machinery to match — average response time 4 hours.
Send Your Inquiry →