

Screw diameter: 65
SJF-65
model | SJF polypropylene blown film machine |
Output product | plastic film |
Applicable materials | HDPE , LDPE , LLDPE , Secondary return material, filling material, calcium carbonate. |
capacity | Hourly production capacity of 40kg-80kg |
Optional | Rotating touch head, dual station winding, manual quick screen change or hydraulic screen changer, automatic suction machine |
technological process | Raw materials - plasticizing extrusion - melt filtration - water jacket cooling forming - film bubble clamping - primary traction - secondary traction - coiling - unwinding - packaging |
characteristic:
The barrel and screw of this extruder are made of high-quality alloy steel, which has been nitrided and precision machined. Has excellent hardness and corrosion resistance.
According to the process requirements, raise the extruder to 3 meters and blow the film using the down blowing method. The winding device adopts a torque motor, which can maintain appropriate tension, winding neatly, and easy to change.
Purpose:
Used for blowing polypropylene (PP) and also for blowing high-density polyethylene (LDPE, HDPE), widely used in packaging of food, clothing, textiles, daily necessities, industrial products, etc




Applicable industries: Tank top bags, flat pocket suppliers
This machine has the advantage of supplying large supermarket vest bags with flat pocket film blowing. Its coating layer has a smooth and bright surface, which is better than the national quality standards. The produced film can be directly used for printing processing, with good color and high flatness. It can save time and labor costs.
Applicable industry: High quality garbage bags
With the improvement of living standards and industrial technology, the requirements for garbage bags have gradually increased. The crude garbage bags previously produced by mixing recycled materials with single-layer blown film machines can no longer meet the demand. Nowadays, more and more bag making manufacturers choose high-quality garbage bag film produced by this machine. It has excellent anti-seepage performance, super strong tensile strength and texture, and is widely used in medical waste packaging, civilian household waste bagging, hotels, schools, property management and other fields.
Applicable industry: Degradable agricultural film
This machine is widely used in agriculture. Degradable plastic film, corrosion-resistant plastic film, etc.