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LAKO's patented Modular Sealing Device (MSD) facilitates quick and hassle-free changeovers and repairs, virtually eliminating downtime in both hot and cold applications. This versatile and innovative sealing system from LAKO provides a straightforward solution, allowing you to effortlessly switch between different seal types, with or without hole punches.

Quick-Change MSD

Quick-Change System

  • Works with both hot and cold sealing applications

  • Standard and hole-punch applications available

  • Split heater hole design enables easy access to the heater

  • Available with shim or adjustable style knives

  • Compatible with vertical and horizontal machines

  • Fast-Lane Program Eligible 

When running different products on the same line, seal jaw faces can be exchanged to accommodate each products seal specifications. Seal jaw faces can be replaced or changed 4 easy steps.

MSD Brochure
MSD Offerings
Standard Sealing
MSD Tech Sheet

PSD Hot and Cold Seal Jaws are designed to correct standard seal film industry issues. For packaging that requires heat sealing, LAKO has developed a hot seal polymer to withstand 300°F (150°C).


  • Improved seal strength, even with lighter gauge film

  • Seals through wrinkles, channel leakers, and transition areas around the fin seal while reducing or eliminating seal fractures

  • Eliminates metal-to-metal contact that reduces time-consuming machine wear

  • Enables consistent sealing without ongoing quality control adjustments for minor film variations

  • LAKO's hot polymer PSD inserts can be replaced in minutes, without disturbing settings for knives and anvils or causing downtime

  • Fast-Lane Program Eligible


Our standard OEM product line is produced with the highest quality materials and engineered to meet your technical needs. Our lead management, engineering, and sales teams, provide complete engineering and design services for tough-to-solve sealing problems.


Ability to customize seal jaw design to accommodate marketing and/or specific packaging requirements.
Variety of seal patterns for proper end sealing that fits your needs, including Bag-in-Box applications for easy-open tops and strong bottom seals on the same crimper.


Lako’s sealing rolls and drums are made to customer specifications. We use pre-hardened materials on our sealing rolls and drums to ensure long-term reliability. Available as an OEM replacement or customized pocket designs to meet various package applications.


A variety of sealing surface patterns can be customized to fit your brand needs.
Just-In-Time delivery programs are available.


Lako's Fin Wheels are manufactured for hot or cold applications in horizontal flow wrappers.  Precisely engineered to match machine speeds for an improved film web control.

  • OEM replacements for any machine make and model are available

  • Customized Fin Wheels are available

  • Sealing profiles are designed and dedicated specifically for each film type to ensure exceptional seal integrity.

  • Various serrations are available: Vertical, horizontal, cross-hatch and Lako's unique "Rotary Vertical" patterns

EZ Align


  • Quick and easy setup

  • VFFS seal jaw applications 

    • MSD Quick Change or OEM​

  • Utilized on Hole Punch or Standard Seal Jaws​

  • Positive Location

    • Top-to-bottom and side-to-side alignment​

  • Oversized bushings and pin for proper alignment​


LAKO’s new hot polymer was developed to run heat seal and cold seal film while adapting to various film thickness without the need to make machine adjustments.


The AdaptiSeal™ is essential for continuous high-end flexible package seal performance on horizontal form fill seal (HFFS) machinery.


  • No machine adjustments are necessary

  • Adapts to varying film thicknesses

  • Works with multiple layers

  • Heats up to 400°F (204.4°C)

Universal AdaptiSeal Device

Lako's Bow allows greater sealing tolerances and can be designed to match package specifications and OEM seal jaws.
The Bow can be used in hot and cold seal applications

  • Bowed design is more forgiving than undercut seal surfaces

  • Greater tolerances allow sealing fin length variances

  • Seals when packages do not track properly

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