Vertical Kraft Paper Slitting Machine
The LFQ series vertical kraft paper slitting machine converts a large parent roll into multiple narrower rolls in a single pass. It handles kraft paper from 30 mm to 600 mm width with a precision of ±0.5 mm and runs at 5 to 180 m/min. The machine is designed for in-house production of custom-sized paper rolls used in wrapping, cushioning, and packaging applications.
- Converts large kraft paper rolls into custom widths without manual cutting or handling
- Achieves ±0.5 mm precision in slitting width, ensuring consistent roll quality
- Runs at 5 to 180 m/min, allowing slow setup runs and fast production
- Equipped with automatic meter counting to stop at preset roll lengths
- Magnetic powder brake and clutch maintain consistent tension during unwinding and rewinding
Key Benefits
- Converts large kraft paper rolls into custom widths without manual cutting or handling
- Achieves ±0.5 mm precision in slitting width, ensuring consistent roll quality
- Runs at 5 to 180 m/min, allowing slow setup runs and fast production
- Equipped with automatic meter counting to stop at preset roll lengths
- Magnetic powder brake and clutch maintain consistent tension during unwinding and rewinding
- Photocell edge tracking ensures alignment even on transparent or low-contrast materials
Application Scenarios
- Packaging converters producing custom-width kraft paper rolls for e-commerce wrapping
- In-house packaging departments replacing plastic film with paper for sustainable packaging
- Paper mills converting bulk parent rolls into smaller rolls for regional distribution
- Printing houses preparing narrow rolls for label or tag applications
- Fulfillment centers cutting large kraft rolls into smaller rolls for daily packing use
Who It Is For
- Packaging converters needing to produce custom-width paper rolls from parent stock
- E-commerce warehouses reducing plastic use by switching to paper-based wrapping
- Paper mills expanding value-added services by offering pre-slitted rolls
- Printing and labeling operations requiring narrow, precise paper rolls
- Manufacturers producing paper-based cushioning or protective wraps in-house
Problems It Solves
- Manual cutting of kraft paper rolls leads to inconsistent widths and material waste
- Buying pre-slitted rolls from third parties adds cost and delays delivery
- Lack of precision in slitting causes misalignment in downstream packaging equipment
- Inconsistent tension during rewinding leads to loose or collapsed rolls
- No in-house control over roll width or length leads to overstock or shortages
Technical Features
- Vertical slitting and rewinding design with front-mounted unwinding and rewinding shafts
- Independent master control panel for flexible and easy operation
- Photocell edge and color tracking for transparent or low-contrast materials
- Magnetic powder brake for unwinding tension control
- Magnetic clutch for rewinding tension control
- Automatic meter counting device stops the machine at the set roll length
- Optional rim charge conveying or rewinding device available on order
- Slitting width adjustable from 30 mm to 600 mm across all models
Specifications
| Description | LFQ-1100 |
|---|---|
| Max.width of mother roll | 1100 mm |
| Max.diameter of mother roll | 800 mm |
| Max.diameter of finished roll | 450 mm |
| Paper Core diameter(Rewind and unwind) | 3inch(75-76 mm) and 6inch(152 mm) |
| Min. slitting width | 30 mm |
| Width of final roll | 30-600 mm |
| Cutting Speed | 5-180 m/min |
| Precision for correct and error | < ±0.5 mm |
| Total power | 3 kW |
| Gross weight | 1500 kg |
| Overall dimensions | 2400x1110x1500 mm |
Materials It Runs
- Kraft paper
- BOPP
- PET
- CPP
- CPE
- PVC
- Aluminum foil
Manufacturing and Process
- Load a parent roll onto the front unwinding shaft
- Set the target roll width and number of slits on the control panel
- Adjust the cutting speed from 5 to 180 m/min based on material and setup
- Activate photocell edge tracking to maintain alignment during slitting
- Monitor tension via magnetic powder brake and clutch during unwinding and rewinding
- Stop the machine automatically when the meter counter reaches the preset length
Quality Control
- Slitting width verified against ±0.5 mm tolerance before machine release
- Edge tracking tested on the customer's material type during trial run
- Tension control checked at both low and high speeds to prevent roll collapse
- Meter counter calibrated to match the set roll length within 1 mm
- Machine tested at full speed range (5 to 180 m/min) before shipment
Certifications
- ISO 9001:2000 certificate obtained in 2005
- CE certificate obtained in 2006
Customization Options
- Slitting width range configured to match the buyer's required output
- Optional rim charge conveying or rewinding device added on order
- Power supply built to local voltage and phase on request
- Control panel language and OEM branding available upon request
- Core size (3 inch or 6 inch) matched to existing roll cores
Compared With the Alternatives
Buying pre-slitted rolls from a third party
In-house slitting removes supplier margin and delivery delays but requires holding parent rolls and an operator
Manual cutting with a knife or guillotine
The machine provides consistent width and tension, reducing waste and operator fatigue
Horizontal slitting machines
Vertical design allows easier access to the unwinding shaft and better visibility during setup
Low-precision slitting lines
This machine achieves ±0.5 mm precision, which is critical for downstream automated packaging
Use Guide
- Mount a kraft paper roll up to 800 mm diameter onto the front unwinding shaft
- Set the desired slitting width and number of lanes on the control panel
- Start at low speed (5 m/min) for initial alignment and edge tracking
- Engage the photocell sensor to track the edge of the web
- Gradually increase speed to 180 m/min once alignment is confirmed
- Set the meter counter to the target roll length and let the machine stop automatically
Questions About This Machine
What is the minimum slitting width?
30 mm. The machine can slit kraft paper down to this width with ±0.5 mm precision.
Can it handle paper thicker than kraft?
Yes. The machine is designed for kraft paper, BOPP, PET, CPP, CPE, PVC, and aluminum foil.
What is the maximum roll diameter it can rewind?
450 mm. The finished rolls are rewound to this maximum diameter.
Is the cutting speed adjustable?
Yes. The machine runs from 5 to 180 m/min, and speed is adjustable via the control panel.
Can it be equipped with a rim charge device?
Yes. The rim charge conveying or rewinding device is an optional feature available on order.
What power supply does it need?
3 kW, 3.5 kW, or 4 kW depending on the model. The machine can be built to your local voltage and phase.
Do you support OEM orders?
Yes. OEM badging, manual language, and power supply configuration are available on request. Contact us via WhatsApp for a quote.
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Get a Quotation for the Vertical Kraft Paper Slitting Machine
Send your kraft roll width, core size and destination voltage. We will configure this machine to it and quote.