Large-Diameter Frame-Type Slitting Machine
Description
The DBFQ-R1600M Frame-Type Slitting Machine is a heavy-duty, high-speed system engineered for precision slitting and rewinding of paper, laminated film, aluminum foil, and adhesive label materials ranging from 40–500g/m². It features a hydraulic shaftless unwinding structure supporting 3–6 inch cores, with a maximum diameter of Φ1800mm and load capacity up to 3T, combined with an ultrasonic EPC correction system for ±75mm alignment accuracy. The 18.5kW servo-driven traction system and 60mm-thick steel frame ensure stable, vibration-free performance at speeds up to 500m/min. Equipped with a circular knife slitting system using SKD precision blades, dual front–rear shaft rewinding with surface and center winding, and 15kW servo motors for precise tension control, it delivers clean cuts and uniform roll quality. The Siemens PLC with a 10-inch multilingual touch screen enables full automation of speed, tension, and length control, while premium components from Schneider, Chint, and Meanwell ensure reliable operation. With its robust design, hydraulic unloading system, and intelligent control, the DBFQ-R1600M provides exceptional accuracy, durability, and efficiency for large-scale slitting production.


Parameters
| Model | DBFQ-R1600M |
| Max Unwinding Width | 1300–1600 mm |
| Max Unwinding Diameter | Φ1800 mm |
| Unwinding Type | 3–6 inch shaftless hydraulic system (optional 3–12 inch) |
| Unwinding Tension Control | The air brake tension is controlled by a PLC. |
| Unwinding Core Diameter | 3–6 inch |
| Max Rewinding Diameter | Φ1500 mm |
| Rewinding Air Shaft | 3 inch × 2 pcs, Heavy-Duty Key Type |
| Max Rewinding Load | 2T (reinforced shaft) |
| Rewinding Tension Control | Two rewinding servo motors |
| Web Guide System | Fully automatic web guiding with ultrasonic sensor |
| Slitting Method | Rotary knife slitting |
| Min Slitting Width | 50–1300 mm (1600 mm) |
| Material Range | Paper: 40–500 g |
| Slitting Accuracy | ±0.2 mm |
| Edge Trim Handling | 5.5 kW High-Pressure Waste Blower |
| Machine Speed | 100–500 m/min |
| Slitting Speed | 100–450 m/min |
| Main Motor Power | 18.5 kW |
| Rewinding Motor Power | 15 kW × 2 |
| Total Power | 54 kW |
| Machine Weight | 18000 kg |
| Dimensions (L × W × H) | 7500 × 4800 × 2250 mm |
Feature

1. Unwinding Section
• Heavy-duty hydraulic shaftless unwinding structure supports 3–6 inch cores, with a maximum unwinding diameter of Φ1800mm and load capacity up to 3T.
• Steel plate frame with linear guide rails ensures stable movement.
• Equipped with dual pneumatic brakes and PLC-controlled tension system for accurate, responsive control.
• Ultrasonic EPC correction system (China Chongqing brand or optional Taiwan Puliyuan brand) maintains ±75mm alignment accuracy.
• Aluminum guide rollers (Φ120×1350mm), dynamically balanced for smooth feeding.
2. Main Frame, Drive & Traction System
• Rigid structure built with 60mm-thick high-strength steel plates, ensuring vibration-free performance at high speed.
• Main drive powered by an 18.5kW servo motor (Zhejiang Duochuan brand, optional Siemens configuration).
• Synchronous belt and pulley transmission ensures precise motion and torque balance.
• Traction rollers adopt pneumatic pressing with SC80×25mm cylinders; chrome-plated steel and rubber rollers provide stable web control.
• Maximum running speed up to 500m/min.


3. Slitting Section
• Circular knife slitting structure with 10 sets of upper and lower knives; manual adjustment for cutting width.
• SKD precision blades provide high durability and clean cutting with ±0.2mm accuracy.
• Upper and lower knife shafts allow rotary knife removal for safe, easy blade changes.
• Circular knife protection cover made of 1.5mm cold-rolled steel with transparent acrylic shield for safety.
• 5.5kW high-pressure fan removes edge waste efficiently.
4. Rewinding Section
• Dual front–rear shaft rewinding system with surface + center winding mode.
• Heavy-duty 3-inch key-type air shafts (2 pcs) with reinforced structure, max rewinding diameter Φ1500mm.
• Each rewinding shaft powered by 15kW servo motor with frequency converter for precise tension control.
• Hydraulic automatic unloading system with 4 oil cylinders (Φ80×200mm) and linear guide movement for smooth roll ejection.
• Rubber pressure roller (Φ250×1350mm) provides even roll density and surface smoothness.


5. Electrical Control System
• Full PLC control (Siemens, Germany) with centralized cabinet design.
• Touch screen: 10-inch color display (Kunlun Tongtai), supports multilingual operation (Chinese, English, Russian, etc.).
• Automatic control of speed, tension, length counting, and alarm stop functions.
• Electrical components: Schneider, Chint, Meanwell; reliable and easy to maintain.
• Integrated operation indicator light shows machine status in real time.
6. General Specifications
• Maximum slitting width: 1600mm
• Material range: 40–500g/m² (paper, laminated film, aluminum foil, adhesive label, etc.)
• Minimum finished slit width: 50mm
• Slitting precision: ±0.2mm
• Max rewinding diameter: Φ1500mm
• Machine speed: 100–500m/min (depending on material)
• Total power: 54kW
• Machine weight: 18,000kg
• Dimensions (L×W×H): 7500×4800×2250mm



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