Extrusion line with air cooling LF series

single layerblown filmfor thermoplastics

Product overview
Single-layer film blowing lines (LF series) for lay-flat widths up to 550 mm. Available in models LF-250, LF-400 and LF-600. Designed for continuous production of blown film with configurable haul-off and wind-up systems and compatible with standard thermoplastic resins.

Characteristics

• Construction: single layer with twin-channel air cooling ring
• Process: blown film extrusion
• Material: thermoplastics
• Applications: film and bag production

Attachment and frame
The blowing attachment connects to a single-screw extruder via a C-clamp flange. The attachment is mounted on a self-supporting frame equipped with lockable casters for quick removal and repositioning.

Die and tower
The die is supported on two adjustable aluminum tower pillars allowing height alignment with the extruder flange. The tower design ensures stable die positioning and easy maintenance access.

Bubble stabilization and collapsing frames
The system includes a bubble stabilizing cage and synchronous adjustable collapsing frames. Collapsing frames use polished teak wood or carbon roller gate rods to guide the bubble uniformly into the nip-rolls.

Technical table
Single Layer Film Blowing Lines | LF-250 | LF-400 | LF-600
Maximum film lay-flat width | 200 mm | 350 mm | 550 mm
Film speeds (m/min) | Haul-off Nip-Rolls 0–15; Wind-Up 0–15 | Haul-off Nip-Rolls 0–35; Wind-Up 0–40 | Haul-off Nip-Rolls 0–35; Wind-Up 0–40
Height from die to nip-roll | 925–1,184 mm (other on request) | 950–1,210 mm (other on request) | 2,000–3,000 mm (other on request)
Total height of film tower | 2,050–2,310 mm (other on request) | 2,400–2,660 mm (other on request) | 3,200–4,200 mm (other on request)
Total electrical power | 4.9 kW | 5.0 kW | 11.0 kW

Technical specifications

• Series: LF series (LF-250, LF-400, LF-600)
• Maximum film lay-flat width: 200 mm (LF-250), 350 mm (LF-400), 550 mm (LF-600)
• Film speeds: variable; haul-off and wind-up ranges depend on model (see table)
• Height from die to nip-roll and total tower height: model dependent (see table)
• Total electrical power: 4.9 kW (LF-250), 5.0 kW (LF-400), 11.0 kW (LF-600)
• Features: twin-channel air cooling ring; variable-speed haul-off; nip-rolls; bubble stabilizing cage; synchronous adjustable collapsing frames; polished teak wood or carbon roller gate rods
• Attachment details: C-clamp connection to single-screw extruder; self-supporting frame with lockable casters; die mounted on two adjustable aluminum tower pillars