Kraft Paper Sealing Strip Making Machine
The SD-SS350 converts kraft paper rolls into pre-cut sealing strips for plastic and kraft paper bags in a single continuous process. It produces strips 18 mm wide with lengths between 130 mm and 320 mm at a speed of 140 to 240 pieces per minute. The machine replaces plastic and nylon sealing strips with a paper alternative, and it handles both paper rolls and wire coils as input. It is used by packaging converters and bag manufacturers to produce their own sealing strips without relying on external suppliers.
- Produces paper sealing strips that replace plastic and nylon strips without changing bag sealing equipment
- Runs continuously at 140 to 240 pieces per minute, reducing manual labor and increasing throughput
- Handles both kraft paper rolls and wire coils as input, allowing flexibility in raw material sourcing
- Pre-cuts strips to exact lengths of 130 to 320 mm, eliminating the need for secondary cutting
- Built for consistent output with automatic length setting and repeatable positioning
Key Benefits
- Produces paper sealing strips that replace plastic and nylon strips without changing bag sealing equipment
- Runs continuously at 140 to 240 pieces per minute, reducing manual labor and increasing throughput
- Handles both kraft paper rolls and wire coils as input, allowing flexibility in raw material sourcing
- Pre-cuts strips to exact lengths of 130 to 320 mm, eliminating the need for secondary cutting
- Built for consistent output with automatic length setting and repeatable positioning
- Designed for in-house production so buyers control cost, supply and material choice
Application Scenarios
- Bakery and fast food bag manufacturers replacing plastic sealing strips with paper ones
- E-commerce packaging lines producing branded kraft paper bags with paper sealing strips
- Bag converters producing custom sealing strips for food service and retail packaging
- Sustainable packaging operations eliminating single-use plastic from their bag production
- In-house packaging departments making their own sealed bags without third-party strip suppliers
Who It Is For
- Packaging converters producing sealed kraft paper bags for food and retail
- Bag manufacturers supplying restaurants, bakeries and takeout services
- Sustainable packaging producers replacing plastic components with paper equivalents
- Food service suppliers requiring compostable and recyclable bag sealing solutions
- E-commerce fulfilment centres producing branded, eco-friendly packaging on demand
Problems It Solves
- Plastic and nylon sealing strips are being phased out in markets with packaging regulations
- Buying pre-made sealing strips from third parties adds cost and delays in supply
- Manual cutting of sealing strips leads to inconsistent lengths and waste
- Bag sealing lines cannot accept paper strips unless they are pre-cut and sized
- Lack of in-house production capability forces reliance on external suppliers
Technical Features
- Processes kraft paper rolls and wire coils as input materials
- Produces sealing strips 18 mm wide with lengths from 130 mm to 320 mm
- Operates at 140 to 240 pieces per minute for high throughput
- Equipped with automatic length setting and positioning for consistent output
- Handles paper rolls up to 500 mm in diameter and 80 mm inner diameter
- Supports wire coils up to 230 mm in diameter and 80 mm inner diameter
- Main motor powered by 10 kW drive system
- Uses mechanical clamping and tension control to maintain strip alignment
- Built with a robust frame to support continuous operation
- Integrated cutting and folding system for strip formation
Specifications
| Model | SD-SS350 |
|---|---|
| Finished strip length | 130 mm-320 mm |
| Finished strip width | 18 mm |
| Speed | 140-240 pcs/min |
| Max. paper unwinding diameter | 500 mm |
| Max. wire coil diameter | 230 mm |
| Max. paper roll inner diameter | 80 mm |
| Max. coil inner diameter | 80 mm |
| Total power | 10 kW |
| Gross weight | 1500 kg |
| Overall dimensions | 6800x1100x2000 mm |
Materials It Runs
- Kraft paper rolls with 80 mm inner diameter and up to 500 mm outer diameter
- Wire coils with 80 mm inner diameter and up to 230 mm outer diameter
- Paper sealing strips made from kraft paper, suitable for food contact
Manufacturing and Process
- Load kraft paper roll or wire coil onto the unwinding shaft
- Feed the material through the tension control and alignment system
- Cut the web to the set strip length of 130 to 320 mm
- Collect the finished fanfold strip stack for packaging or use
- Adjust the length setting and speed for different production runs
Quality Control
- Strip length verified against the set value on the first 10 pieces of each run
- Folding alignment checked visually and mechanically before full production
- Tension control tested on the customer's paper grade during startup
- Cutting blade alignment checked before each production batch
Certifications
- ISO 9001:2000 certificate obtained in 2005
- CE certificate obtained in 2006
Customization Options
- Strip length range adjusted to match customer's bag sealing requirements
- Power supply built to local voltage and phase on request
- OEM badging and manual language available upon request
- Machine frame and finish matched to customer's factory environment
Compared With the Alternatives
Buying pre-made plastic sealing strips
This machine allows in-house production with lower long-term cost and no dependency on external suppliers
Manual cutting of sealing strips
The machine ensures consistent length and reduces labor and waste
Plastic film sealing systems
Paper strips are compostable and recyclable, but do not provide moisture barrier
Other fanfold machines
This machine is designed specifically for sealing strips, not general paper folding
Wire coil feeding without folding
This machine integrates folding and cutting into one process, reducing handling
Use Guide
- Mount the kraft paper roll or wire coil onto the unwinding shaft, ensuring the inner diameter is 80 mm
- Set the desired strip length between 130 mm and 320 mm on the control panel
- Adjust the machine speed to 140 to 240 pieces per minute based on material and output needs
- Start the machine and verify the first few strips are cut and folded correctly
- Check the fanfold stack alignment and adjust tension if needed
- Run a full test batch and confirm consistent output before full production
Questions About This Machine
What is the strip length range?
130 mm to 320 mm, adjustable based on customer needs.
What paper roll size can it handle?
Max 500 mm diameter with 80 mm inner diameter.
Can it process wire coils?
Yes, up to 230 mm diameter and 80 mm inner diameter.
What is the machine speed?
140 to 240 pieces per minute.
What power supply does it need?
10 kW total power. Can be built to local voltage and phase on request.
Is OEM support available?
Yes. OEM badging, manual language and power supply can be configured at order.
What are the shipping dimensions?
6800 x 1100 x 2000 mm (L x W x H), weighing 1500 kg.
Related Machines
The SD-PF800A converts two kraft paper rolls into a double-layer fanfold cushioning sheet in a single inline process. It feeds the…
View Machine
The SD-PF500A turns a kraft paper roll into a stackable fanfolded sheet pile in a single pass. It runs stock 470 mm wide kraft pap…
View Machine
The SD-PF500B/PF800B turns a kraft paper roll into a stack of fanfolded sheets in a single automated pass. The machine performs pe…
View MachineRelated Reading
Get a Quotation for the Kraft Paper Sealing Strip Making Machine
Send your kraft roll width, core size and destination voltage. We will configure this machine to it and quote.