Pre-opened Bag Making Machines
Machines that convert poly film reels into pre-opened bags on a roll, so a packaging producer can supply automated bagging lines without relying on third-party suppliers or manual bagging.
Machines In This Range
2 Lines Pre-opened Bag On-a-roll Making Machine
The PRE-600 converts a single wide roll of poly film into two parallel rolls of pre-opened bags in a continuous process.
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Fanfold Pre-opened Poly Bag Making Machine with Zig-zag Folding
The PRE-600 converts a reel of single-layer poly film into fanfold pre-opened bags on a roll with zig-zag point connecti.
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Model 450 Packing Machine
The Model 450 Packing Machine automatically feeds pre-opened PE bags from a roll, sets the bag, and seals it in one cont.
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Model 550 Packing Machine with computer and printer
The Model 550 Packing Machine converts pre-opened PE bags on a roll into sealed, labelled bags at speeds up to 1800 bags.
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Multi-Lane Pre-opened Bag Making Machine
The PRE-600 converts a single wide roll of poly film into 1 to 4 finished pre-opened bags on a roll in one process.
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Pre-opened Bag Converting Machine
The PRE-600 converts a reel of poly film into pre-opened bags on a roll with one side sealed and two perforation lines: .
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Pre-opened Bag On Roll Making Machine
The PRE-600 converts a reel of poly film into pre-opened bags on a roll in a single continuous process.
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Table type Model 350 Packing Machine
The Table Type Model 350 Packing Machine converts pre-opened PE bags on a roll into individual sealed bags at a maximum .
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Zig-zag Folding Pre-opened Bag Making Machine
The PRE-600 converts a reel of poly film into pre-opened bags on a roll using a zig-zag folding method.
View machine →What This Range Is For
- End customers and e-commerce fulfilment centres require pre-opened bags on a roll for integration with autobaggers
- Manual bagging is slow and inconsistent compared to automated feeding
- Pre-opened bags from external suppliers have variable quality and long lead times
- Poly film bags are being restricted in some markets due to environmental regulations
- Frequent roll changes disrupt continuous operation on high-speed packing lines
Who These Machines Suit
- Protective packaging producers supplying pre-opened bags on a roll to e-commerce fulfilment centres
- Poly bag makers expanding into roll-fed bagging for automated packaging lines
- 3PL operators running autobag systems that require consistent bag supply
- Consumer goods packers switching from plastic to paper or film bags on a roll
What You Get From These Machines
Core advantages
- Two-line and multi-lane models allow simultaneous production of two bag types or higher output
- Zig-zag folding and fanfold forming create consistent pre-opened bags ready for automated feeding
- Table-type models like the Model 350 are compact and suitable for smaller production spaces
- Machines handle poly film reels and can be configured for different bag widths and lengths
- Related machines in this range include bag cutting, dispensing, and core sleeve installation
Where they are used
- Supplying pre-opened bags on a roll to an e-commerce fulfilment centre using an autobagger
- Converting poly film reels into consistent bags for packaging electronics and small appliances
- Replacing manual bagging with automated roll-fed bags in a high-volume packaging line
- Producing bags for retail packaging where consistent opening and sealing are required
Machines From This Range In Service
Pre-opened Bag Making Machines Questions
What film types can the pre-opened bag machine process
Poly film reels, with configurations available for different film thicknesses and widths.
What models are available for pre-opened bag making
Available models include the Model 350, Model 450, and Model 550, with two-line and multi-lane variants.
Can the machine make bags with different widths or lengths
Yes, the machine can be set for different bag dimensions based on the film reel and folding configuration.
Do you provide technical support after delivery
Technical support is available through Vicent Chan (Manager) via WhatsApp, phone, or email.
What certifications do your machines have
Wenzhou Snda Machinery holds an ISO9001:2000 certificate obtained in 2005 and a CE certificate obtained in 2006.
Which countries have you shipped these machines to
Deliveries recorded on our site include India, Ethiopia, Brazil, the UK, the USA, Saudi Arabia, the UAE, Nigeria, Egypt and Turkey.
Background Reading
Background technique of pre-open bag on-a-roll
Pre opened bags on a roll are a continuous strip of plastic bags connected at one side by a zigzag point seal....
New development on SNDA Pre-opened Bag Making Machine
The SNDA Pre-opened Bag Making Machine now includes multiple configurations to produce bags with different ope...
About green packaging
Green packaging refers to materials and processes that are recyclable, reusable, or biodegradable, and do not ...
Get A Quote On Pre-opened Bag Making Machines
Tell us your reel width, paper or film weight and target output and we will match a model and price it.