Standardizing Knives & Sealing Jaws on Flow Wrappers & Vertical FFS Baggers

You can use the same knife and sealing jaw designs across different models or makes of machinery to reduce costs, improve package quality, and decrease downtime.

Do you run different makes or models of flow wrappers or vertical form-fill-seal baggers? If you do, you probably use a variety of knife and sealing jaw styles that you need to keep in stock. With different knife or sealing jaw designs, the seal quality and appearance of your packages may vary, depending on which machine, line, or facility produced them. Read more

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Solving Cutting Problems on Flow Wrappers During Production

When cutting problems occur on horizontal flow wrappers during a production run, what are the best procedures to get packaging lines up and running again and to keep them running? Minimizing downtime, producing consistent quality packages, and managing costs require a balanced approach that includes:

  • Knowing which “quick-fix” adjustments will get knives cutting without causing additional problems and downtime. (Faster and easier is not always the best solution.)
  • Broad-based, P3 Solutions that consider the entire packaging process to:
  • Understand how each adjustment affects the whole system.
    Eliminate procedures that don’t work.
    Diagnose and correct the ultimate causes of problems. (Many issues stem from a combination of factors.)
    Implement solutions that help prevent cutting problems from occurring in the first place and help you Pursue Zero.

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Optimizing Knife and Anvil Set-Up on Horizontal Wrappers

Set-up procedures for knives and anvils can vary according to the make and model of the packaging machine, knife adjustment style, and other factors. There are, however, some general principles that make these adjustments more effective and efficient, reducing downtime and parts costs.


Diagonal Zig Zag Knife for Horizontal Wrapper_Greener Corporation
  Optimize Knife Design

  • Knives ground on a diagonal, or bias–whether they have a zig zag or a straight cutting edge–require less pressure to cut so they are easier to set up and typically last longer.
  • Zig zag knives with smaller (more) teeth are also easier to set up and provide longer life.

  Set Up the Crimpers First

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Case Study: Packaging Material Cost Reduction

Project Goals

The corporate engineering department at a large, international company commenced a project to reduce material costs for a variety of products that are individually packaged on horizontal flow wrappers. Greener Corporation was invited to participate in a series of meetings that defined the project’s initial goals:material cost reduction_Greener Corporation

  • To reduce the cut-off length for each package by reducing the overall seal width, thus allowing the product envelope to remain unchanged.
  • To achieve material savings without degrading seal integrity or productivity levels.
  • To achieve a project payback period of twelve months or less.

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White Papers: From Problem Solving to Proactive Improvement

Greener Corporation has published a series of white papers devised to help optimize package quality and productivity on horizontal and vertical form fill seal packaging lines. In addition to helping you solve problems, these technical articles provide foundational information you can use to implement proactive improvements—an approach that helps deter problems from occurring in the first place.

End Seal Leaks at the Fin Seal Fold

End Seal Leaks at the Fin Seal Fold

Serration Pattern Design

Serration Pattern Design

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Adjusting Backlash to Improve Quality and Performance

The first video in Greener Corporation’s “Tech Bites” series explains how adjusting backlash on horizontal flow wrappers helps prevent problems such as fractured end seals and premature failure of knives and anvils.
The first video in Greener Corporation’s “Tech Bites” series explains how adjusting backlash on horizontal flow wrappers helps prevent problems such as fractured end seals and premature failure of knives and anvils.

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