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Bag sealer

Also called: bag sewing machine, bag closer, bag closing machine, heat sealer, bag stitching machine

Step 8 of 8: Weighing and packing

Sews or heat-seals the filled bag shut, usually on a conveyor right after the bagging machine.

Availability subject to feasibility check

Prices depend on the specification and the supplier. Request a quote.

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Example of a Bag sealer
Example of this machine type, not a specific model we supply.Photo: M5s, CC BY-SA 4.0, commons.wikimedia.org, edited

Bag sealer: how it works

  1. A filled bag arrives upright on a conveyor, and its mouth is pulled flat.
  2. For jute, woven plastic and paper bags, a sewing head runs a chain stitch across the mouth and cuts the thread.
  3. For film bags and bags with a plastic liner, heated bars or bands press the mouth and weld it shut.
  4. The closed bag moves on to stacking or loading.

Main types

Portable bag closer
A hand-held sewing machine the worker runs across the bag mouth. For low output.
Conveyor bag sewing machine
A sewing head on a column over a conveyor; the bag passes under it without stopping.
Continuous band sealer
Two heated bands seal film bags as they travel past. For retail packs and liners.

Where it fits in the process

It is the last machine of the mill, right after the weighing and bagging machine. Closed bags go to the store or the truck.

Bag sealer price in Bangladesh: how to get a quote

We do not publish prices. The price of a machine depends on its specification, the supplier and the shipping terms, and it changes with the market. Tell us the points below: we check feasibility and the import rules, then send you a quotation.

What to tell us

  • The bag material and whether it has a liner.
  • The bag sizes and weights.
  • How many bags you close in an hour.
  • Sewing, heat sealing or both; portable or on a conveyor.
  • New or reconditioned.
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Common questions

Should rice bags be sewn or heat-sealed?

It depends on the bag. Jute and woven plastic sacks are sewn. Film packs are heat-sealed, which also keeps out moisture and insects. Sacks with an inner liner are often sealed inside and sewn outside.

What is the difference between a portable and a conveyor bag sewing machine?

A portable closer is held in the hand and suits a few hundred bags a day. A conveyor machine has a fixed head, sews bags as they pass and keeps up with a bagging scale all day.

What is the price of a bag sewing machine in Bangladesh?

We do not publish prices. The price depends on portable or conveyor type, sewing or sealing, the speed you need and whether the machine is new or reconditioned. Send us the points listed above and we will quote.

More machines in this step: Weighing and packing