Double Head HDPE LDPE Film Blowing Machine

(Single Extruder – Double Die Heads Design)

This is a single screw – double die heads blown film machine. It has only one main motor + gear box, one screw and one screen changer. However, it has two sets of dies, two sets of cooling systems, two sets of traction system, and two sets of winding devices. Its main application is in the production of narrow polyethylene films. The advantages are high output, space and labor saving.

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Application field

HDPE Film

LDPE Film

Biodegradable Film

Liner Film

Extended Usages

Carry Bags

Shopping Bags

Garbage Bags

Household Bags

Common Model and Parameters

Model	SJ-55-600X2	SJ-65-800X2
Sleeve Width	100-500mm X 2 Rolls	100-700mm X 2 Rolls
Thickness	6-100 Micron	6-100 Micron
Capacity	30-70Kgs/H	40-100Kgs/H
Screw	55mm	65mm
L/D	30:1 or 32:1	30:1 or 32:1
Gear Box	#173	#200
Main Motor	22Kw	37Kw
HD Die Head	60mm * 2	80mm * 2
LD Die Head	120mm * 2	150mm * 2
Air Ring	Dual Lip 720mm * 2	Dual Lip 780mm * 2
Air Chiller	2.2 Kw * 2	3.7 Kw * 2
Winder	Two Sets Automatic Single Winder
Power Supply	3Phases, 4 Lines, 380V/220V/415V/440V/480V, 50/60Hz
Total Power	65Kw	80Kw
Power Consume	30-70% of total installation power
Install Size	5.03.25.2M	5.23.45.5M

Common Specifications View

R.M. Loading

With Auto Loader ,Relax your Labor,most important is that when hopper is empty, it will alarm to rewind you to add raw materials

Screw & Barrel

Adopt 30:1 or 32:1 High Wearing resistance bimetallic Screw,service life will be longer .Different mixing areas can be designed based on different raw materials to achieve the best plasticizing effect.Feeding Zone has water cooling ring to increase capacity .

Barrel / Die head Heater

Use ceramic heating ring to ensure a constant temperature effect.

Barrel Cooling

Adopt 370W Powerfull Aluminum body Fan to cooling the barrel in short time, avoid raw material over heated

Gear Box(Single)

Adopt SG (Shuguang) brand hard tooth surface gear box with oil and water cooling,efficient and durable.

Screen Change(Single)

Manual Take-apart screen change

Die Head (Double)

40Cr Die block steel Mono Layer Spiral Die head /Or Double Layers Die Head ,The elongated and thickened body ensures excellent temperature stability and high capacity.

Air Ring(Double)

Cast Aluminum Dual Lips High Speed HDPE /LDPE Air Ring for your option

Bubble Cage(Double)

Manual adjust Aluminum Roller Design bubble Cage . But for HDPE film, wooden design will be better.

V-Plate(Double)

Double Position V plate , Wooden plate with gusset board

Upper Traction(Double)

Normally its three rollers design, one rubber roller, one mirror roller and one dot roller. Dot roller can be canceled if no need.

Winder(Double)

Automatic single winder,with vector inverter to control tension, with air shaft and meter counter, automatic rolls change.

Main Motor(Single)

WEG or Siemens,Permanent magnet motor, China Domestic brand is available.

Bubble Cooling Fan(Double)

Silent high-pressure fan, controlled by frequency converter. It can adjust the motor speed as needed, being highly efficient, energy-saving and quiet.