Free 173 Best Homemade Tools eBook:  
Get 500+ tool plans, full site access, and more.

User Tag List

Page 3 of 3 FirstFirst 1 2 3
Results 21 to 24 of 24

Thread: Switchable Magnet | Strength Test

  1. #21
    Supporting Member Ralphxyz's Avatar
    Join Date
    Dec 2016
    Posts
    1,273
    Thanks
    677
    Thanked 250 Times in 205 Posts

    Ralphxyz's Tools
    I use the Magswitch magnets on a fence for my bandsaw, they hold really good.
    I just played with your magnets for a couple of minutes not doing any work just lifting and pushing them around.
    So I will have to work with them to really judge the holding strength and to compare them with Magswitch.

    Ralph

    173 Best Homemade Tools eBook

  2. The Following User Says Thank You to Ralphxyz For This Useful Post:

    tiger carpenter (Jan 26, 2022)

  3. #22
    Supporting Member Saltfever's Avatar
    Join Date
    Apr 2012
    Location
    NorCal
    Posts
    251
    Thanks
    296
    Thanked 85 Times in 56 Posts
    Ralph:
    The holding power of a magnet is affected by many variables. Anything less than optimum and the loss of holding power is significant! The picture is the chart attached to my 800lb lifting magnet. Note, the thickness of the steel and the air gap are significant! What is not pictured is how material properties also affect holding power. Carbon steel has the highest power and some of the stainless steels are lowest. Cast iron is not as good as steel. If you are comparing magnets be sure all variables are the same for each. For example, your band saw table is likely a precision ground cast iron surface. The grind, or surface finish, has a big effect on magnetism. Be sure to compare the magnets in the same way.

    Click image for larger version. 

Name:	Magnetic holding.jpeg 
Views:	71 
Size:	875.2 KB 
ID:	41624

  4. #23
    Supporting Member Saltfever's Avatar
    Join Date
    Apr 2012
    Location
    NorCal
    Posts
    251
    Thanks
    296
    Thanked 85 Times in 56 Posts
    Deleted. Question already answered.
    Last edited by Saltfever; Jan 28, 2022 at 01:03 AM.

  5. #24
    Supporting Member Ralphxyz's Avatar
    Join Date
    Dec 2016
    Posts
    1,273
    Thanks
    677
    Thanked 250 Times in 205 Posts

    Ralphxyz's Tools
    I just remembered I do have a pull scale somewhere in my shop so I could do some measurements if I find it.

    Ralph



    173 Best Homemade Tools eBook

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

    tiger carpenter (Jan 28, 2022)

Thread Information

Users Browsing this Thread

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

Tags for this Thread

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
  •