B&B Bag-Making Machine

Poly Woven Pinch-Bottom Bags

Reliable, precise, and compact — ideal for stable packaging units with maximum process safety.

The B&B SFB-WPP transforms flat poly-woven PP fabric into finished pinch-bottom bags at up to 120 bags per minute. A robust structure delivers maximum product safety, while woven polypropylene's tear resistance and a BOPP coating for high-quality print graphics combine strength with shelf appeal. The pinch-bottom design holds a stable bag shape and optimal product presentation from every angle.

B&B SFB-WPP poly woven pinch-bottom bag machine
At a glance
Up to 120Bags per minute
260–482.6 mmBag width
500–1,105 mmBag length
< 60 minFormat changeover
  • Woven PP & BOPP — strength with print quality
  • Hot-air sealed pinch bottom & back seam
  • Optional top slider reclosure
  • Non-stop roll change with minimal waste
  • Rotary die cutter — a low-maintenance alternative to lasers
  • Inline inspection & automatic defect rejection
Overview

Robust stability, high-quality appearance

The SFB-WPP transforms flat poly-woven PP fabric into finished bags with integrated features such as pinch-bottom closures and top sliders. The design combines robust stability with a high-quality appearance — leveraging woven polypropylene's tear resistance and a BOPP coating that carries sharp print graphics.

The pinch-bottom construction ensures a stable bag shape and optimal product presentation from all angles, while a compact, robust machine structure keeps production safe and reliable. Non-stop roll change, inline quality inspection and automatic defect rejection keep output high and waste low.

B&B SFB-WPP poly woven pinch-bottom bag machine
Poly woven bag in overview

Why the SFB-WPP

Robust & safe

A robust machine structure built for maximum product safety and dependable, everyday production.

Strength meets shelf appeal

Woven-PP tear resistance with a BOPP coating for crisp, high-quality print graphics.

Automated & inspected

Non-stop roll change, camera & sensor inspection and automatic defect rejection.

Flexible & reproducible

Recipe management and semi-automatic changeover for fast, repeatable format changes.

Technical details

Poly woven pinch-bottom bag machine — specifications

Specification SFB-WPP poly woven pinch-bottom bag machine
PerformanceUp to 120 cycles per minute
MaterialWoven PP and BOPP
Bag width260–482.6 mm
Bag length500–1,105 mm
Side gusset (open)60–200 mm
Format changeoverLess than 60 min
Poly woven bag dimensions — width 260–482.6 mm, length 500–1,105 mm
Product specifications

Configure your bag

Closures
Pinch bottom bag closure
Pinch bottom bag
Top slider closure
Top slider
Bottom
Pinch bottom
Pinch bottom
Applications

What poly woven bags carry

Cement & building materials Fertilizer Rice & grain Sugar & flour Animal feed Chemicals & minerals

Woven PP pinch-bottom bags pair high tear strength with premium print quality — a durable, shelf-ready pack for heavy, bulk and free-flowing goods.

Examples of machine layouts

Configured for the job

SFB-WPP + TCS-W
Highlights
  • Hot air sealed pinch bottom
  • Top slider
  • Non-stop roll change
  • Rotary die cutter
  • Various systems for bag quality inspection (cameras, sensors)
  • Automatic reject for defective bags
  • Flush cut
Features
  • Semi-automatic format changeover system
  • Web edge control
  • Preparation for automated bag packaging LEAP
B&B SFB-WPP + TCS-W machine layout
SFB-WPP + TCS-W 120 BPM
Highlights
  • Hot air sealed pinch bottom
  • Non-stop roll change
  • Rotary die cutter
  • Laser vent hole perforation upon request
  • Various systems for bag quality inspection (cameras, sensors)
  • Automatic reject for defective bags
  • Flush cut
Features
  • Shaftless unwinders
  • Semi-automatic format change system
  • Web edge control
  • Preparation for automated bag packaging LEAP
B&B SFB-WPP + TCS-W 120 BPM machine layout
Good to know

Frequently asked questions

Why a rotary die cutter instead of a laser?
The rotary die cutter is a robust, low-maintenance alternative to laser cutting for shaping and perforating woven PP at high output. Laser vent-hole perforation remains available as an option where breathable packs are required.
How long does a format changeover take?
Less than 60 minutes, with the exact time depending on machine configuration. Recipe management and semi-automatic changeover keep switching between products fast and repeatable.
Can the pinch bottom be sealed to the front or back panel?
Yes. Depending on your customer's requirements, the pinch bottom can be sealed either to the front panel or to the back panel of the bag.
Is non-stop roll change possible?
Yes. The system allows a roll change without stopping the machine, which minimizes downtime and reduces waste.
B&B machine benefits

Your advantages at a glance

  • Maximum automation — non-stop production, defect rejection, robot-packaging ready
  • Advanced process control — precise welding temperatures & process pressures
  • Recipe management — high reproducibility, minimal format-change time
  • Intuitive HMI — quality & speed settings with OPC UA data export
  • Modular design — rapid response to changing markets
  • Modular adjustment — collaborative module improvements & new units

Reliable technology, backed by 40 years of bag-making experience.

Buy B&B in Pakistan

Local support by K Group

As the authorized agent for B&B in Pakistan, K Group supports your bag-making investment end to end.

Sales consultation Installation & commissioning Service & maintenance Genuine B&B spare parts Operator training
B&B SFB-WPP poly woven pinch-bottom bag machine
Complete the line

Works well with

Request a quote

Interested in the B&B SFB-WPP poly woven bag machine?

Speak to our machinery specialists in Pakistan for a tailored quotation.

Request a quote

Fields marked * are required.