LDPE Film Blowing Machine

General features:

Model: SJ-65

Maximum film width: 1200mm

Output capacity: around 70kg/h Note: output depends on film width/thickness etc

Power supply: 380V three phase; 50Hz

Raw Material: HDPE/LDPE/LLDPE

Dimension (L×W×H): 5000mm×4000mm×5600mm

Weight: About 5500kg

Extruder unit:

Main motor power: 22kw; controlled by Delta inverter

Screw diameter: 65mm

Screw L/D ratio of screw: 28:1

Speed of screw: 5-100rpm

Barrel cooling: 1/6 Hp cooling blower × 2pcs

Film thickness: 0.008-0.15mm

Gear Box: model 173

Material of screw and barrel: Alloyed high-quality steel 38CrMoAlA with optimum hardness and strong corrosion resistance after precision finishing and nitrogen treatment

Heaters: stainless heaters

Heating capacity: 18kw

Rotary inflation head

Inflation Die: 120/160/260 exchangeable inner die head

Rotating motor: 0.25KW mini moderating motor

Cooling air blower: 3kw; controlled by delta inverter

Aluminum Alloy air ring x 1 set (6 air inlet hose)

Hopper loader: one set

Take up unit

Film bubble taking up motor: 1.5kw; controlled by Delta inverter

Steel roller/rubber roller length: 1400mm

Take up embossing rollers: 165mm diameter*1400mm (L)

Embossing rollers open and close controlled by air cylinder

Guiding roller: 2pcs

Wooden plank bubble supports and A-frame with Gusset device

Tower’s height adjusted by motor-rise and fall type

Film taking off speed: 5-40m/min

Film bubble size sensor installed; automatically give more air if bubble size becomes smaller

Ladder and walking board width: 60cm

Corona: 1200mm effective width

Double winding station

Winding type: by fraction

Winding motor: 15N/M torque motor x 3SETS

Torque motor controlled by speed adjuster, easy for operation

Friction metal/rubber roller: 250mm diameter*1400mm (L)

Banana roller: 2pcs

Maximum winding diameter: 600mm

Side slitting blade at the two sides

Center slitting knife to cut the film into smaller film stripe: 3pcs

Waste film collecting system

Air shaft: 4pcs

Control Panel

1. Temperature of barrel and die head controlled by digital temperature controller
2. Inverter controls main motor driving speed and film taking up motor running speed
3. Electronics used are all Chinese top brand
4. Current meters and Voltage meters show the working state of motors
5. Small fan installed to avoid high temperature caused by long time running