LDPE/HDPE High Speed Twin Star Film Blowing Machine

• Screw structure: ABC type, screw diameter 55/65/55 mm.

• L/D ratio: 32:1.

• Transmission: Gearbox directly connected to the main motor, compact structure, higher transmission efficiency.

• Main motor: ABB, power 30/37/30 kW.

• Gearbox: Shuguang Heavy Duty, model SG35/SG50/SG35.

• Screen changing method: Hydraulic manual screen  changer.

• Heating method: Ceramic heating coil.

• Cooling fan: One 11 kW fan; two 5.5 kW inlet and outlet fans.

Simple and compact structure, easy and labor-saving operation. Screen changing is easily completed with hydraulic assistance, reliable sealing to prevent material leakage, stable melt pressure, good film bubble formation, and uniform film thickness. No complex hydraulic station or electrical control system, resulting in low failure rate and convenient maintenance.

• Die Head Type: LDPE internal cooling 

• Die Head Diameter: φ300 mm.

• Supporting Logic: Works in conjunction with automatic air ring, ring scanning thickness measurement and control systems to form a more complete bubble stabilization and thickness control solution.

48 nozzles, three-channel structure.

Probe + circumferential scanning, non-contact measurement, reducing the risk of scratching softer material surfaces.

B&R, specializing in extrusion systems, allows for remote control.

•Ingredients Advantage: Easy to clean and maintain, reducing film errors caused by fluctuations in material ratio.

• Structural Design: Optimized feeding port and overall structure design, resistant to material jamming and convenient for daily maintenance.

• Expansion Capacity: The system supports 2–6 components. Feed ports and wiring are reserved for future component upgrades; accessories can be directly installed upon delivery. (Patented)

Independently developed and designed

Completely solve the problems of bulging ribs, wrinkling and unevenness in HDPE film rolls

Eliminate the inherent longitudinal fusion lines (mold closing lines) of HDPE

Make the tensile force of HDPE film more balanced and prevent it from deviating

Compared with downward rotation, its service life is more permanent

Automatic Centering and Correction System

1. Working Principle
The system uses dual photoelectric sensors to automatically track the material edge, automatically finding the edge as the width changes, and driving the correction frame to complete the centering and correction.

2. Core Advantages
One-button calibration; no manual adjustment of photoelectric sensors is required for width changes, resulting in highly efficient operation.
Symmetrical distribution of material edges ensures stable tension, preventing wrinkles and poor edge cutting.
Narrower edge strips effectively reduce material waste.

3. Additional Functions for Dual-Motor Model
Supports center offset, real-time width measurement and display, misaligned winding with explosion-proof edge protection; adjustable parameters.

• Rewinding Method: Automatic double rewinding.

• Auxiliary Devices: Equipped with a dispensing device.

• Robotic Arm: The robotic arm grips the air shaft.

• Extendable Advantages: Reduces manual intervention, facilitates smoother roll changes, and provides a more intuitive overall machine display.

Siemens systems

ABB industrial drives

• Screw diameter 55 mm × 2

• L/D ratio 32:1

• Gearboxes 180 × 2, Redsun

• Main motors Honeywell 30 kW × 2

It adopts an automatic air ring simulation structure with carbon fiber material inside, designed as a three-channel, single-outlet air nozzle.

Advantages:
1. Strong wind-gathering effect, higher and more uniform cooling efficiency
2. Effectively improves the circumferential thickness uniformity of the film
3. Significantly enhances the winding flatness in the later stage, ensuring more stable product quality

System Highlights: Industry-first 5-component super-sensitive feed loss-in-weight system.

Control Method: Independent mixing, each hopper equipped with a servo motor control.

1. Independently developed and designed

2. Completely solve the problems of bulging ribs, wrinkling, and unevenness in HDPE film rolls

3. Eliminate the inherent longitudinal fusion lines (mold closing lines) of HDPE

4. Make the tensile force of HDPE film more balanced and prevent it from deviating

5. Compared with downward rotation, its service life is more permanent

Automatic Centering and Correction System

1. Working Principle
The system uses dual photoelectric sensors to automatically track the material edge, automatically finding the edge as the width changes, and driving the correction frame to complete the centering and correction.

2. Core Advantages
One-button calibration; no manual adjustment of photoelectric sensors is required for width changes, resulting in highly efficient operation.
Symmetrical distribution of material edges ensures stable tension, preventing wrinkles and poor edge cutting.
Narrower edge strips effectively reduce material waste.

3. Additional Functions for Dual-Motor Model
Supports center offset, real-time width measurement and display, misaligned winding with explosion-proof edge protection, and adjustable parameters.

• Rewinding Method: Automatic double rewinding.

• Auxiliary Devices: Equipped with a dispensing device.

• Robotic Arm: The robotic arm grips the air shaft.

• Extendable Advantages: Reduces manual intervention, facilitates smoother roll changes, and provides a more intuitive overall machine display.

Delta Systems