High Speed Fanfold Kraft Paper Folding Machine
The SD-PF500B/PF800B converts a reel of kraft paper into fanfolded sheets with perforations in a single continuous process. The machine unwinds the paper, performs precise perforation and folding, and stacks the finished sheets onto a conveyor. This allows packaging producers to make their own pre-opened bags on a roll or fanfolded paper for use in automated bagging lines, replacing the need to buy finished rolls from third parties.
- Converts kraft paper reels into fanfolded sheets with perforations in one pass, reducing reliance on external suppliers
- Working speed up to 200 m/min (model PF800B at 150 m/min) enables high output for automated lines
- Automatic lifting system simplifies reel loading and reduces operator effort
- Perforation and folding length adjustable from 8 to 15 inches, with standard at 11 inches
- Stacking via conveyor ensures consistent output for downstream automation or manual collection
Why Buyers Choose It
- Buying finished fanfolded kraft paper rolls adds a supplier margin and long replenishment cycles
- Manual folding of kraft paper is slow and inconsistent compared to automated fanfolding
- Pre-opened bags on a roll are not available from local suppliers in some markets
- Inconsistent perforation or folding length causes jams or misfeeds in autobaggers
- Lack of in-house converting capacity forces reliance on third-party suppliers with limited flexibility
Who Runs This Machine
- Packaging converters that buy kraft paper in reels and want to add fanfolded sheet output
- Fulfilment operators running automated bagging systems that require pre-opened bags on a roll
- Paper slitting houses expanding their product range with fanfolded paper for industrial use
- Packers using fanfolded paper as a protective insert or cushioning layer in shipping
Where This Machine Is Used
- Protective packaging producers making fanfolded kraft paper for pre-opened bags on a roll
- E-commerce fulfilment centres using fanfolded paper in autobag lines for consistent bag feeding
- Paper converters adding value to kraft paper reels by producing fanfolded sheets in-house
- Poly bag makers supplying fanfolded kraft paper to customers who run roll-fed bagging systems
- Packers replacing plastic or paper inserts with fanfolded kraft paper for product protection
Features And Specifications
Technical features
- Unwinds kraft paper reels up to 1200 mm diameter using a 3 inch inflatable air shaft
- Automatic lifting system for easy reel loading and alignment
- Perforation and folding module adjustable from 8 to 15 inches, standard at 11 inches
- Inverter and PLC control for stable speed regulation and process monitoring
- Weinview brand touch screen for parameter setting and machine status display
- Magnetic powder brake and clutch maintain consistent web tension during folding
- Stacking system delivers finished fanfolded sheets via conveyor for collection
- Machine operates at 200 m/min (model PF500B) or 150 m/min (model PF800B) depending on configuration
Specifications
| Machine model | SD-PF500B / PF800B |
|---|---|
| Max material width | 470 mm / 780 mm |
| Paper thickness | 40-150 gsm |
| Machine working speed | 200 m/min (model PF500B), 150 m/min (model PF800B) |
| Perforation and folding length | 8-15 inch (standard 11 inch, requires module change) |
| Unwinding diameter | 0-1200 mm |
| Stacking system | By conveyor |
| Unwinding type | Automatic lifting system |
| Unwinding shaft | 3 inch inflatable air shaft |
| Inverter and PLC | Local brand |
| Touch screen | Weinview brand |
| Motor | Local brand |
| Machine size | 3500 x 1200 x 1600 mm (L x W x H) / 3500 x 1500 x 1600 mm |
| Machine power | 3.5 kW / 5 kW |
| Machine weight | 2000 kg / 2500 kg |
| Power supply | 380 V 3 phase 50 Hz |
How The Machine Runs
Materials
- Kraft paper reels from 40 to 150 gsm
- Wrapping paper and industrial paper in the same weight range
- Optional laminated paper layers if used in conjunction with other converting lines
Quality Control
- Magnetic powder brake and clutch maintain consistent tension to prevent web distortion
- Touch screen interface allows real-time monitoring of speed, length, and module settings
- Perforation and folding module is designed to maintain consistent spacing and depth
- Machine is test run with customer-provided kraft paper before shipment
- Inverter and PLC system ensures stable operation at full working speed
Customisation
- Perforation and folding module can be changed to adjust length from 8 to 15 inches
- Power supply can be built to match the voltage and frequency of the destination country
- Machine size and weight vary slightly between models; dimensions are provided for planning
- Conveyor stacking system can be adjusted for different output heights or collection methods
Certifications
- ISO9001:2000 certificate obtained in 2005
- CE certificate obtained in 2006
How It Compares
| Buying finished fanfolded kraft paper rolls | In-house converting removes the supplier margin but requires inventory of kraft reels and machine investment |
|---|---|
| Manual folding of kraft paper | Automated fanfolding is faster and more consistent, reducing labour and error rates |
| Fanfold paper cutting machine | This machine forms the fanfold and perforation; a cutting machine would be needed to separate sheets into pads |
Running It On Your Floor
- Ensure the kraft reel is within 40-150 gsm and 1200 mm diameter before loading
- Use the automatic lifting system to raise the reel to the correct height for smooth unwinding
- Set the perforation length on the touch screen and confirm module alignment before starting
- Start at low speed and gradually increase to the target speed while checking fold quality
- Clean the perforation and folding rollers regularly to prevent paper dust buildup
High Speed Fanfold Kraft Paper Folding Machine FAQ
What paper thickness can the machine handle
It is designed for 40 to 150 gsm kraft paper, wrapping paper, and similar industrial paper grades.
How fast does the machine run
Model PF500B runs at up to 200 m/min; model PF800B runs at up to 150 m/min.
Can the perforation length be changed
Yes, the length is adjustable from 8 to 15 inches, with standard at 11 inches; a module change is required for different lengths.
What power supply is standard
Standard power supply is 380 V 3 phase 50 Hz; we can build to other voltages and frequencies on request.
What is the machine footprint and weight
Machine size is 3500 x 1200 x 1600 mm or 3500 x 1500 x 1600 mm; weight is 2000 kg or 2500 kg depending on model.
Do you hold quality certificates
Wenzhou Snda Machinery holds an ISO9001:2000 certificate obtained in 2005 and a CE certificate obtained in 2006.
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Quote The High Speed Fanfold Kraft Paper Folding Machine
Send your paper or film specification and target output. We will confirm the model, the lead position and the price.