This 700 Type Compact Low Pressure Blown Film Machine is built for factories that need a reliable, no-frills source of polyethylene film. It runs HDPE and LLDPE blends, produces film from 0.01 mm to 0.25 mm thick, and operates within an output range of 25 kg to 40 kg per hour. The low-pressure design is easier to manage than high-pressure systems and suits smaller workshops or as a secondary line in larger plants. Operators can keep the process stable with basic temperature and speed controls.

The 700 Type Compact Low Pressure Blown Film Machine is the entry-level workhorse that many packaging companies start with or keep as a flexible backup unit. It supplies the film that later becomes shopping bags, rubbish bags, or simple packaging wraps without requiring complex multi-layer setups or large factory space.

Specific Applications

Film produced on this 700 Type Compact Low Pressure Blown Film Machine goes into a range of common packaging products:

Flat and vest-style shopping bags for retail and supermarket use where moderate strength and low cost matter most.
Household rubbish bags and kitchen waste bags that need consistent thickness for reliable sealing and tear resistance.
Simple courier and mailer film that will be printed and converted into express packaging.
General-purpose packaging film for garments, stationery, food items, and light industrial goods.
Continuous film rolls that feed bag-making machines producing both individual bags and continuous-roll products.
Private-label film sold to local retailers and distributors who want basic quality under their own brand.
Protective wraps and secondary packaging used in warehouses, factories, and distribution centres.

These applications stay within the published width and thickness limits and focus on everyday commercial demand rather than specialised barrier or medical films.

Core Functions
The 700 Type Compact Low Pressure Blown Film Machine handles the essential steps of film production in a compact arrangement:

Single-screw extrusion with combined-metal screw and 38CrMoAl barrel running at up to 100 r/min for controlled melting of HDPE and LLDPE.
Low-pressure die and air-cooling system that forms a stable bubble and cools the film evenly across the 600 mm width.
Traction section with 700 mm shaft length that pulls the film at a steady rate and prepares it for winding.
Winding unit equipped with double-break, envelope knife, middle-cut knives and side-cut knives for clean roll edges and optional edge trimming.
Stainless-steel heating rings and embedded die-head heaters that maintain consistent melt temperature.
AC traction motor and 1.5 kW winding motor that keep take-up and roll formation under control.
Maximum winding diameter of 500 mm, allowing reasonably sized finished rolls without frequent changes.
Simple herringbone adjustment and overall layout that make day-to-day operation accessible for standard factory teams.