Cast Stretch Film Machine is an industrial equipment that uses high-temperature molten polymer materials, extruded through a flat die head, directly cast into film, and then passes through a cooling roller, tension control system and winding device to produce multi-layer composite structure film materials. The overall appearance includes: twin-screw extruder main unit, wide-width die head, multi-zone temperature-controlled cooling roller group, online detection and trimming unit, fully automatic center winding module, digital control system, and optional online taping, slitting, embossing and other functional modules.

Optimized screw structure: efficient plasticization, strong production capacity

Cast Stretch Film Machine adopts Ф150mm + Ф90mm twin-screw structure. The screw geometry is specially designed according to the rheological characteristics of polyolefin films, which enhances the shearing and mixing ability of materials, plasticizes evenly, and improves the unit output stability by 15%. It is suitable for a variety of low-weight and high-uniformity film materials.

Precision die head system: balanced flow channel, precise film thickness control

The flat die head has a width of up to 4200mm and a multi-cavity flow channel structure. Combined with the online automatic thickness detection system, the film thickness can be controlled to fluctuate within the range of ±1.5μm. It is particularly suitable for the continuous, high-speed, and high-flatness production of 10-60g/㎡ thin functional film structures.

Energy-saving cooling and film guiding system: reduce energy consumption and improve stability

The core cooling roller adopts a spiral flow channel water circulation cooling structure, and the surface temperature control is stable at ±1℃, which effectively ensures uniform cooling of the film material forming. The optimized film penetration path design increases the manual film penetration efficiency by 40% and effectively reduces the initial waste film.

Automatic winding control: center drive switching automation

Equipped with a Φ1000mm maximum diameter center winding system, equipped with an automatic material receiving and roll changing device, it can realize non-stop roll changing operation and increase the effective operation time of the entire line. The embedded auxiliary pull-out system reduces the operator's load and improves production safety and convenience.

Full-line intelligent integration: one-stop digital monitoring

Cast Stretch Film Machine supports MES production management system docking, and visualizes the operation status of the entire line, energy consumption data, fault records, and production scheduling information. Functional modules such as online defect detection, online thickness automatic adjustment, and black tape lamination support free expansion to achieve customized intelligent factory management.

1. Premium Baby Diapers

The breathable film casting machine ensures softness and high permeability, critical for baby diapers. Hengan Group integrates this equipment to maintain its leadership in the infant care market.

2. Elderly Care Pads

In senior hygiene care, breathable films improve air circulation while maintaining liquid barrier properties. Windeed adopts this application for its elderly care pads, enhancing comfort and preventing skin irritation.

3. Feminine Care Backing Layers

For sanitary pads, breathable film backsheets combine thinness with resilience. Qifeng leverages the machine to produce advanced feminine care products that meet global quality standards.

4. Medical Protective Clothing

Breathable film laminates are essential for protective gowns in medical environments. Huahan applies the equipment to expand into certified medical material production.

5. Disposable Mattress Covers

In household care, breathable films are used in mattress covers to improve comfort and prevent moisture buildup. Zhuangda Material focuses on scaling this application for large household product lines.

6. Breathable Food Packaging

Films produced by the machine are also adapted for food-related breathable packaging. Quanta-gold Boat applies this technology to specialized packaging products that maintain product freshness.

7. Nonwoven Composite Materials

By combining breathable films with spunbond layers, high-performance laminates are created. Xinsanhe integrates this into its nonwoven production to expand into hygiene and industrial sectors.

8. Industrial Safety Apparel

Breathable protective suits require films with controlled vapor transmission. Xinghuo utilizes this technology to create PPE materials for workplace safety applications.

9. Custom Market Solutions

Different markets demand different breathable properties. ACHOICE employs the machine to deliver tailor-made breathable film solutions to global clients.

Cleaning of screw and barrel: prevent carbon deposition and extend service life

It is recommended to perform online cleaning every 600 hours of operation, and use high-flow cleaning materials to discharge the residue. Disassemble and clean if necessary to prevent carbon deposition from affecting plasticization uniformity and film quality.

Die maintenance: prevent blockage and surface scaling

The die outlet needs to be cleaned at high temperature every week, and the residual glue is scraped off with a copper sheet tool. Hard objects are strictly prohibited from damaging the flow channel surface. The surface of the die should be kept dry to prevent condensed water from corroding the screws and seals.

Cooling system maintenance: maintain thermal efficiency and waterway cleanliness

The cooling roller needs to drain the waterway regularly and remove scale. It is recommended to test the cooling water inlet and outlet temperature difference and the water pump working pressure every month to ensure that the roller temperature control system operates within the design efficiency.

Reeling system maintenance: ensure accurate pressure and synchronous control

Check whether the reeling arm tension sensor and motor feedback system are out of adjustment every quarter, clean the auxiliary shaft pulling pneumatic system, and replace the aging seal ring in time to avoid air leakage affecting the roll changing efficiency.

Maintenance of the electric control system: Maintain stable control logic

PLC and HMI systems are recommended to perform system software upgrades and backups every 6 months to prevent program loss or communication anomalies. All wiring terminals should be tightened regularly to prevent vibration and loosening from causing signal errors.