The conveyor machines by Armstrong merge a closing head, pedestal column and conveyor to form a continuous sealing line. The filled bags reach the conveyor and slide directly under the stitching unit for uniform sealing, trimming and releasing without human manual feeding and stitching for steady output. Heavy duty bag closing machines are designed for high output packing units that need uniform closure during shifts without slowdown by human lifting.
Having over 40 years' experience within the industrial packaging industry, Armstrong can offer a total conveyor-driven line- not only the stitching head alone. All lines offered operate as a synchronised unit. Meaning the stitching machine head, column of variable height, and feeding conveyor ensure bags are conveyed under the needle at the desired speed.
Machines range from a single thread chain stitch portable driven, to four thread double needle machines. It enables the appropriate specification to be determined to ensure desired seam strength and throughput.
To overcome the problems with manual feeding and maintain a consistent seam quality for millions of bags, a heavy-duty industrial bag closing machine with conveyor setup has been produced. Bespoke NP 7A portable bag closing machine setups designed to your conveyor and line height are available as well.
Features of Conveyor Bag Closing Machines
Integrated Closing Line: Closing head, pedestal column, and conveyor work as a single hands-off sealing unit.
Chain Stitch Closures: Single thread on portable closers, up to double needle four-thread stitch on heavy-duty units.
High Output: Production from around 800 to 1000 bags per hour depending on model and bag type.
Synchronised Conveyor Flow: Wooden slat or belt-type conveyors carry bags under the stitching head without stoppages.
Height-Adjustable Columns: Manual adjustment fits the closing head to different conveyor and line heights.
Wide Material Compatibility: PP woven, PP laminated, HDPE, Jute, Hessian, Polyjute, and Kraft paper bags.
Automation Options: Auto Thread Cutting and auto bag feeding available for higher throughput and less handling.
Less Manual Labour: Continuous feeding cuts lifting and keeps operators clear of the stitching head.
Built for the Shop Floor: Sealed housings with automatic or oil-pump lubrication resist dust and extend service life.
Customisable Configuration: Conveyor length, column height, control panel, and stitch type specified to the line.
FAQs – Conveyor Machines Machine
What is a conveyor bag closing machine?
This is a total sealing line where filled bags pass through under a stitching head which travels up and down on a column, sealing every bag.
How is this different from a standalone bag closing machine?
The standalone stitcher takes the bags one after the other and joins them manually, while a stitcher with a conveyor belt brings the bags continuously, so the lifting of the bags is prevented.
Which machines are in Armstrong's conveyor range?
It includes the portable NP-7A closer, the AS 800/802 BC pedestal-column units, and the Auto Thread Cutting AS 800/802 BC-ATC system.
What bag types can these machines close?
PP woven, PP laminated, HDPE, Jute, Hessian, Polyjute, and Kraft paper bags are sealed with the help of Cotton thread or Synthetic thread.
What production speeds can I expect?
Output can be as much as 800 to 1000 bags/hour depending on machine model, needle choice and bag specification.
Can the conveyor and column be customised?
Yes, you can select length, type of conveyor, height of the column and control features to fit your line.
Which industries use conveyor bag closing lines?
Fertiliser, sugar, rice, flour, cattle feed, powder milk, chemicals, seeds, and food processing units rely on them for high-volume sealing.
Do these machines reduce manual labour?
Yes, the continuous conveyor feeding and auto thread cutting do decrease manual handling and maintain consistency in seam quality on long runs.
Need Help Finding the Right Machine?
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