A4-paper Cutting and Packaging Line
Roll Unwinder
Functional Description
The roll unwinder is responsible for gripping, lifting, and controlling the unwinding tension of large paper rolls. Given the substantial weight of the rolls, the unwinders are robustly engineered with a reinforced structure to ensure mechanical strength and operational reliability.
The unit is equipped with the following components:
- Heavy-duty gear motors for lifting and gripping the paper rolls
- Sensors and microswitches
- High-quality bearings and pillow blocks
- Disc and brake assembly
- Proportional control valves
- Pneumatic cylinders and solenoid valves
- Stepper motors, motor drives
- Schneider-brand power electronics
- PLC controller, power supply
- Emergency stop switches, start/stop buttons
- HMI touch panel
All components are premium-grade and sourced from top international brands, as detailed in the technical specifications table of this catalog.
Roll Unwinder
Technical Specifications
- Roll width capacity: 850 mm to 1060 mm
- Maximum roll diameter: up to 1400 mm
- Equipped with a pneumatic braking system
- Manual mechanical adjustment of roll clamp arms
- Integrated vacuum dust extractors along the unwinding path before cutting
- Electromechanical quick-change system with high-quality components, using dual electric movable centers for fast and easy roll replacement
- Automatic paper de-curling system and smart braking mechanism that adjusts paper tension automatically based on roll diameter
- On-the-fly lateral roll position adjustment during machine operation
- Load-cell-mounted bearings for precise tension measurement
- Pneumatic jack located before the longitudinal cutter for manual roll unwinding during paper loading
- Automated web tension control system
- Machine frame material: ST37 structural steel
|
Dimensions (M) |
OUTPUT (P/H) |
POWER CONSUMPTION (3-380 v) |
number of rolling |
|---|---|---|---|
|
2.5*17.6*2.3 |
500packages per hour |
18KW |
width85 Two rolls |
|
2.5*12.6*2.3 |
800packages per hour |
18KW |
width85 four rolls |
|
2.5*17.6*2.3 |
600packages per hour |
18KW |
width106 Two rolls |
|
2.5*17.6*2.3 |
1000packages per hour |
18KW |
width106 four rolls |
