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Bag sealing

Industrial sealers for plastic and paper bags

Not every bag is sewn. For polyethylene or heat-sealable bags, gusseted bags or very fine powders, heat sealing or hot melt gives an airtight closure. We help you choose the right technology.

Fischbein PBC 8000 pinch sealer

Closing technologies

Six ways to close a bag

The technology depends on the bag material, the product and the speed of your line.

Continuous band

Two Teflon-coated bands carry the bag mouth between heaters that seal it.

  • PE, PP, paper with liner, gusseted bags
  • Wide seal up to 14 mm, very reliable
  • Bands are replaced periodically

Hot air

A manifold blows hot air over the mouth and rollers press it shut. No bands.

  • Dusty and abrasive environments
  • Up to 30 m/min, minimal maintenance
  • Not suitable if there is moisture inside the bag

Pinch (PBC)

Folds the stepped mouth of the paper bag and reactivates with heat the adhesive applied at the factory: a leak-proof closure. Requires pre-glued pinch bags.

  • Powders, chemicals, fertilizers, pet food
  • PBC 6000 up to 22.9 m/min
  • PBC 8000 up to 45.7 m/min

Inner liner (PILS)

Hermetically seals the inner plastic bag and closes the outer pinch-type paper bag.

  • PBC, PILS, CAP SAC and poly-thru-paper modes
  • Up to 22.9 m/min
  • Hygroscopic and food products

Twin-roller hot melt (DRC)

Glues the mouth of straight-cut multiwall paper bags with hot melt.

  • Straight-mouth paper bags
  • Ready to produce in 20 minutes
  • Quick bag size change

Sewing

The most versatile closure for paper, woven polypropylene and jute. It can include crepe tape or a fold-over.

  • The most economical per bag
  • See sewing systems
  • Can be combined with a sealed liner (PTP)

Equipment

Fischbein and Saxon industrial sealers

Factory equipment to seal everything from plastic bags to multiwall paper sacks on automatic lines.

Fischbein PBC 8000 pinch sealer
High volume
Pinch · High speed

Fischbein PBC 8000

Made in: United States

For high-volume automatic lines with pre-glued pinch paper bags. Three independent heat zones and extended infeed.

SpeedUp to 45.7 m/min (150 ft/min)
Heat3 hot-air manifolds
SafetyJam detector and over-temperature shutdown
CleaningDust extractor at the sealing area
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Fischbein DRC 300 hot melt sealer
Twin-roller hot melt

Fischbein DRC 300

Made in: United States

Trims the mouth of the paper bag, folds it, applies a bead of hot melt and seals it instantly. The typical closure for pet food and premixes.

SpeedUp to 22.9 m/min (75 ft/min)
BagsFlat or gusseted multiwall paper, 1 to 23 kg
ApplicatorDynatec hot melt
PedestalMotorized height, mobile
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Fischbein HAS 300HP hot-air sealer
Dusty environments
Hot air

Fischbein HAS 300HP

Made in: United States

Closes a wide range of heat-sealable pillow bags and reinforced polyethylene (PE) bags, with an airtight, leak-proof seal and no bands to replace.

Speed9 to 30 m/min (30 to 100 ft/min)
Seal9.5 mm, plain or ribbed
ControlDual synchronized drives
ProductsFertilizers, minerals, seeds, powdered dairy
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Fischbein B2600 continuous band sealer
Continuous band

Fischbein B2600

Made in: United States

For high output with gusseted bags, pillow bags and pouches, with seal cooling for downstream handling.

SpeedUp to 18.3 m/min (60 ft/min)
Seal width6 mm (up to 13 mm)
Sealing height83 to 144 cm
OptionsTrimmer, printer and coder
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Saxon SB1000 band sealer
Continuous band

Saxon SB1000

Made in: United States

Versatile band sealer for a wide variety of plastic bags and packaging, with adjustable height.

Speed6 to 14 m/min (20 to 46 ft/min)
BagsPE and PP, with or without gusset
HeightAdjustable
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Fischbein PILS 300 inner liner sealer
Inner liner

Fischbein PILS 300

Made in: United States

Hermetically seals the inner plastic bag and closes the outer paper bag: a double barrier against moisture and leaks.

SpeedUp to 22.9 m/min (75 ft/min)
ModesPBC, PILS, CAP SAC and poly-thru-paper
VersionAlso in stainless steel
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Quick guide

Which technology do I need?

SituationBeltHot airPinch / PILSSewing
PE or heat-sealable bagIdealIdeal——
Laminated polypropylene———Ideal
Multiwall paper bagWith liner—IdealIdeal
Woven polypropylene———Ideal
Very fine powderGoodGoodIdealWith crepe tape
Very dusty environmentFairIdealGoodGood
Moisture inside the bagGoodNot recommendedGoodGood
Explosion riskAsk usNot suitableAsk usAsk us

Frequently asked questions

Seal or sew?+

Sewing is more economical and works with paper, woven polypropylene and jute. Sealing gives an airtight closure on plastic bags and is the standard for products that cannot leak at all.

How often are the bands replaced?+

It depends on use and environment: from one set per week to one per month. That is why we recommend hot air in very dusty environments.

Can I seal a plastic liner inside a sewn bag?+

Yes. The poly-thru-paper system hermetically seals the inner bag and the outer bag is closed with a seam.

You may also be interested in

Stitch types guideStitch 401 vs 101 and which closure to useBags and sacksBag types and how to close each oneTechnical service and spare partsWorkshop in Escazú and parts in stock

Request your quote

Tell us your product, bag type and daily output, and we will send you a quote for the equipment that fits your line.

Message us on WhatsApp · +506 8881-1672 Phone: +506 2288-0282 info@seproma.co.cr 300 m east of Plaza Montes shopping center, next to Antigua Pastelería Giacomin, San Rafael de Escazú, San José Monday to Friday, 8 a.m. to 12 p.m. and 1 to 5 p.m.
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Brands we represent

Hamer Fischbein
Fischbein
Megatex
Newlong
JEM International
TMI
Siruba

Seproma is the sole authorized Hamer-Fischbein representative in Costa Rica. Learn about the company.