Bag Making Machines for Sacks & Pouches
B&B bag making machines for converters and bag producers in Pakistan: the SFB-WPP for woven PP pinch-bottom sacks, the STBB for stand-up pouches and the SFB for side gusset bags. This page covers B&B machines that convert woven PP fabric or printed and laminated film into finished bags and pouches. They are not tape extrusion lines, circular looms or plastic carry-bag machines. For the rest of a PP woven sack line — flat yarn extrusion, tubing, lamination, printing, cutting and sewing — see Botheven; for paper bags, see Garant.
What is a bag making machine?
A bag making machine converts a roll of printed fabric or film into finished bags or pouches. It forms the bag, seals or folds its seams and bottom, adds features such as reclosures, handles or spouts, and cuts each bag from the web. The same principle runs a plastic bag making machine and a woven sack machine.
- Unwind the printed roll of woven fabric or film.
- Form the bag: fold the sides, gussets or bottom.
- Seal or fold the seams and the bottom.
- Add inline features such as reclosures, handles, spouts or perforation.
- Cut each bag from the web and stack or pack it.
Woven sack converters need one to make sacks for cement, fertilizer, grain and animal feed from woven PP fabric (fabric woven from flat polypropylene tapes).
Flexible-packaging converters need one to make pouches and gusseted bags for food, liquids, pet food and consumer goods from laminated or mono-material film (film made from a single plastic family such as PE, which is easier to recycle).
Woven pinch-bottom vs stand-up pouch vs side gusset at a glance
The three B&B machine families make different bags from different materials. A pinch-bottom bag has a bottom folded over and heat-sealed rather than sewn; a stand-up pouch, also called a doypack, has a gusseted base so it stands on a shelf; a side gusset bag has folded-in sides that let it expand.
| Consideration | Woven pinch-bottom (SFB-WPP) | Stand-up pouch (STBB) | Side gusset (SFB) |
|---|---|---|---|
| Bag type | Pinch-bottom sack, with an optional top slider | Stand-up pouch and spout pouch | Side gusset bag, with a folded or flat bottom |
| Typical products packed | Cement, fertilizer, rice and grain, sugar and flour, animal feed, chemicals | Food, liquids and beverages, sauces, pet food, home and personal care | Pet food and consumer goods |
| Input material | Woven PP fabric with a BOPP coating | PET/Alu/PE, PET/PE, PP and other composite films, mono-films | Laminated and mono-material films: PE/PE, MDO-PE/PE, PET/PE |
| Typical user | Woven sack converters | Flexible-packaging pouch converters | Converters making retail and pet-food packs |
| Key inline options | Hot-air sealed pinch bottom, top slider, non-stop roll change, inline inspection | Inline spout insertion, leak testing, cleanroom, single, dual or quadruple lane | Reclosures, carrying handles, flat bottom, inline laser perforation, LEAP robot packing |
B&B bag making machines available in Pakistan
K Group supplies three B&B machine families, one for each bag type. Each figure below is quoted from the B&B product page for that machine.
SFB-WPP
B&B — woven pinch-bottom bagsA PP woven bag making machine that turns flat woven PP fabric with a BOPP coating into pinch-bottom bags. B&B states up to 120 bags per minute.
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STBB
B&B — stand-up pouchesA stand up pouch making machine for food and liquids, in single, dual or quadruple lane, with inline spout insertion. B&B states up to 520 bags per minute.
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SFB
B&B — side gusset bagsConverts laminated and mono-material films into side gusset bags with reclosures, handles and flat bottoms. B&B states up to 80 cycles per minute.
View details →Complete PP woven sack lines in Pakistan
For a PP woven bag production line, K Group also represents Botheven, whose machines cover flat yarn extrusion, tubing, lamination, PP woven printing, cutting and sewing, valve bags and jumbo or FIBC bags. Together with the B&B SFB-WPP for pinch-bottom bags, that gives a woven sack making machine for each of these stages from one authorized agent in Pakistan.
Which bag making machine is right for you?
The right machine follows from the bag you sell and the material you make it from. Five questions settle it, and we ask all five before quoting.
What bag, for what product? Heavy, free-flowing goods such as cement, fertilizer or rice point to a woven pinch-bottom sack. Food and liquids point to a stand-up pouch. Pet food and consumer goods often go in side gusset bags.
Woven fabric or film? The SFB-WPP runs woven PP fabric. The STBB and SFB run film, so if you need a pouch making machine for laminates or mono-material film, the choice is between those two.
How often do you change formats? B&B lists recipe management and semi-automatic format changeover on the SFB-WPP and SFB. The more formats you run, the more time these save at every change.
Which features must be built in? Reclosures, spouts, handles and laser perforation can all be added on the machine. Inline spout insertion, for example, fits the pouring spout on the STBB itself, so the pouch needs no second machine or handling step.
How much end-of-line automation? B&B states that its LEAP robotic packaging handles, groups and packs finished bags automatically, raising throughput and consistency and freeing operators from repetitive end-of-line work.
Bag making machine price in Pakistan: what determines it
There is no list price: the quote is built from the bag type, material, output, options and automation you need. Two converters asking for the same machine family can be quoted very differently. These are the factors that move the number.
Bag type and machine family set the starting point. A woven pinch-bottom machine, a stand-up pouch machine and a side gusset machine are different machines, not options on one.
Material decides the sealing and handling equipment: woven PP fabric, composite laminates and mono-material films each need their own set-up.
Output and lanes scale the machine. A pouch machine running more lanes side by side makes more bags per cycle and costs more to build.
Inline options such as reclosures, spouts, handles, flat bottoms and laser perforation each add a station to the machine, and each removes a separate process from your floor.
Inspection and quality control — cameras, sensors, leak testing and automatic rejection of defective bags — add cost and cut waste and complaints.
Format changeover and automation add cost and buy back time: recipe management, semi-automatic format change, non-stop roll change and LEAP robotic packing.
Cleanroom build, installation, commissioning and training are real line items and should be in the quote from the start.
Tell us the bags you make and the volume you need, and we will come back with a specification and a price for it.
Bag making machines: common questions
What is a bag making machine?
A bag making machine converts a roll of material into finished bags or pouches. It unwinds woven fabric or printed and laminated film, forms the shape, seals or folds the bottom and sides, adds features such as reclosures, handles or spouts, and cuts each bag off. The machine and its options depend on the bag type and the material.
What is the difference between a bag making machine and a PP woven bag production line?
A PP woven bag production line covers every step from granules to sack: tape extrusion, weaving, lamination, printing, then cutting and closing the bag. A bag making machine is the last of those steps. B&B SFB-WPP machines take flat woven PP fabric with a BOPP coating and turn it into finished pinch-bottom bags. K Group also represents Botheven for flat yarn, tubing, lamination, printing, cutting and sewing.
What is the price of a bag making machine in Pakistan?
A bag making machine is not a catalogue item, so there is no fixed price. The quote depends on the bag type, the material, the output you need, the number of lanes, inline options such as reclosures, spouts or handles, inspection, and end-of-line automation. See what determines the price above, then speak to a specialist for a specification and a quotation.
Which materials do B&B bag making machines run?
The SFB-WPP runs woven PP fabric with a BOPP coating. The STBB runs PET/Alu/PE, PET/PE, PP and other composite films, as well as sustainable mono-films. The SFB runs laminated and mono-material films, including PE/PE, MDO-PE/PE and PET/PE. Which machine fits depends on the bag you want to make and the material it is made from.
Who supplies B&B bag making machines in Pakistan?
K Group is the authorized agent for B&B in Pakistan. B&B is a German builder of bag-making and packaging machines for flexible packaging. K Group supplies the SFB-WPP for woven pinch-bottom bags, the STBB for stand-up pouches and the SFB for side gusset bags, and supports them locally with sales consultation, installation, service, spare parts and training.
The brand behind these machines
B&B — based in Germany, B&B builds bag-making and packaging machines for flexible packaging, converting laminated and mono-material films and woven PP fabric into finished bags and pouches. K Group is the authorized agent for B&B in Pakistan.
Related equipment
PP woven bag printing
Botheven PP woven bag flexographic printing press
Paper bags
Garant paper bag machines
Perforation
Tambula film perforation machines
Web inspection
Unilux web inspection strobes
B&B packaging machines
Stretchpacker film bundling · Matador paper wrapping · Bag Filler for tissue · case packers · CPH-WPP bag aligner and sealer
Related: slitting machines cut printed film to the reel width a bag machine runs; flexo printing machines and rotogravure printing machines print the film and fabric before it is made into bags.
Ready to talk about your bag type and volume?
Choose a machine above to see its details, and send our Karachi team an enquiry with the bags you make and the volume you need.