Free 186 More Best Homemade Tools eBook:  
Get tool plans

User Tag List

Results 1 to 4 of 4

Thread: Expanding packaging foam - GIF

  1. #1
    Supporting Member Altair's Avatar
    Join Date
    Aug 2013
    Posts
    12,020
    Thanks
    1,365
    Thanked 30,317 Times in 9,998 Posts

    Expanding packaging foam - GIF

    Expanding packaging foam. Chemical reaction between polymeric isocyanate and polyurethane resin causes the foam to expand inside the bag.




    Previously:

    Void fill air pillow machine - GIF
    Pallet wrapping machine - GIF
    Mattress compressing machine - GIF
    Box strapping machine - GIF

    186 More Best Homemade Tools eBook
    Last edited by Altair; Apr 19, 2019 at 05:58 AM.

  2. The Following 4 Users Say Thank You to Altair For This Useful Post:

    baja (Apr 20, 2019), carloski (Dec 17, 2021), Scotsman Hosie (Apr 19, 2019), Seedtick (Apr 19, 2019)

  3. #2
    Supporting Member Scotsman Hosie's Avatar
    Join Date
    Apr 2017
    Location
    Salt Lake City, UTAH
    Posts
    359
    Thanks
    4,937
    Thanked 85 Times in 60 Posts

    Scotsman Hosie's Tools
    (So 'dats how da do dat!)

    2,000+ Tool Plans

  4. #3
    Supporting Member jimfols's Avatar
    Join Date
    Sep 2015
    Location
    Ontario Calif USA
    Posts
    853
    Thanks
    2,151
    Thanked 547 Times in 288 Posts
    Probably a good idea to smoke cigarettes on that job.
    Jim

  5. #4
    Supporting Member KustomsbyKent's Avatar
    Join Date
    Dec 2014
    Location
    South Dakota
    Posts
    249
    Thanks
    2,501
    Thanked 185 Times in 110 Posts

    KustomsbyKent's Tools
    At the company I work at, we have that style of machine where it fills the bag automatically, and we also have another one for making custom shapes. That one is more interesting as we use a 2-part wood mold, lay in plastic sheeting, then spray in the 2-part foam and quickly shut the mold. The foam expands and cures in less than a minute, then open the mold and start over. We use that to make custom packaging for protecting our products in wood crates. I helped acquire that particular machine in our Shanghai, China facility. It is an exothermic reaction, so there is plenty of heat generated. You don't want to just spray a big pile of it! The material comes in 55 gal drums, and the gun can dispense it quite quickly! Too much and you have a mess.



    2,000+ Tool Plans

  6. The Following User Says Thank You to KustomsbyKent For This Useful Post:

    Scotsman Hosie (Apr 22, 2019)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •