Slitter Rewinder
Slitting and rewinding is a precision converting process that divides wide master rolls into multiple narrower rolls of specific widths. By using shear or razor cutting technologies, slitter-rewinders ensure clean edges and consistent roll tension, making them essential for preparing flexible materials like paper, film, and foil for downstream production.
Our Slitter Rewinder is a vertical-type solution designed for the precision slitting and rewinding of large-diameter materials. It is engineered to handle various substrates, including kraft paper, cardboard, laminated paper, silicone oil paper, aluminum foil, and non-woven materials.
Features
- Tension Control: Utilizes vector/servo motors to maintain automatic constant tension throughout the center winding process.
- Stability: Equipped with variable frequency speed regulation to ensure smooth acceleration and stable high-speed operation up to 400m/min.
- Intelligent Monitoring: Integrated with automatic meter counting and alarm systems to minimize downtime and material waste
- Rewinding Structure: Features a dual A/B air-expansion shaft configuration with a motorized chain-driven discharge system for convenient and efficient finished roll unloading.
- Unwinding Correction: Equipped with an automatic web guiding and correction system to ensure precise slitting, even when processing irregular or unevenly wound base materials.
- Precision Slitting: Features a circular knife slitting system with a high-pressure blower for automatic waste edge discharge.
- Automated Roll Loading: Includes a shaftless hydraulic loading system for mater rolls.
Specifications
| Model | WZFQ-1400 |
| Max. Unwind Width | 1400mm |
| Max. Unwind Diameter | Ø1500mm |
| Min. Slitting Width | 40mm |
| Max. Rewind Diameter | Ø1100mm |
| Slitting Speed | ≤400m/min |
| Power Supply | 380V/50HZ |
| Total Power | 24.5kW |
| Machine Dimensions (L×W×H) | 4500×3200×1900mm |
| Total Machine Weight | 5000kg |
Machine Configuration Details
Unwinding Section: Hydraulic Shaftless Automatic Loading
- Lateral Movement: Controlled via linear guide rails.
- Loading: Shaftless automatic loading structure.
- Web Guiding: High-precision Edge Position Control (EPC) system.
- Tracking: Ultrasonic sensor guidance.
- Tension: Automatic pneumatic tension control.
- Adjustment: Manual/Automatic lateral and parallel substrate adjustment
Main Drive Section
- Type: Active traction with pneumatic pressing.
- Drive: Main motor drives primary shaft and active rollers.
- Pressing: Controlled by pneumatic cylinders.
- Discharge: Motorized chain-driven unloading
Rewinding Section: Dual Air-Expansion Shafts
- Method: Center winding.
- Shafts: Simultaneous winding on dual air-expansion shafts.
- Stability: Mechanical arms on linear guide rails.
- Surface Support Principle: The rewind shafts remain in close contact with the aluminum guide rollers for synchronized surface-assisted winding.
- Loading & Unloading: Equipped with a motorized automatic system for efficient rewind shaft loading and finished roll unloading.
Control System: Integrated Cabinet
- Primary Control: Includes centralized management of the main motor, primary control box, and servo vector control for the rewind motors.
- Intelligent Functions: Integrated with an electronic meter counter for precise length tracking, automatic stop alarms, and automated fixed-length cutting.
- Preset Capabilities: Allows operators to preset specific slitting lengths or target rewind diameters for automatic machine shutdown.
Jianda is a company specializing in design and manufacturing of extrusion coating and lamination lines. With nearly 4 decades of engineering expertise, we provide custom-tailored solutions for global manufacturers in food packaging such as paper cups and hamburger wrapping paper, and industrial materials like cement sacks and geotextiles. By integrating equipment such as paper sheeter machine, slitter rewinder, flexo printing machine and die cutting machine, we offer a seamless extrusion coating lamination lines that allow our customers to process substrates ranging from kraft paper and aluminum foil to woven and nonwoven fabrics.