Delta 4in Belt + 6in Disc Sander

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Delta 4in Belt + 6in Disc Sander

For shaping/sanding wood. A very versatile tool good for removing small amounts of material and splinters. Within limits (see below), plastic and aluminum can also be sanded. The 6 inch disc part is to small to be of much use, if disc sanding required use the 12 disc sander

Basic Info

  • Ownership: i3 Detroit
  • Location: This belt + disc sander is located on a rolling cart in the Wood Shop.
  • What it looks like:

Delta belt + disc sander photo

Manufacturer Information

  • Make/Model: Delta 31-460
  • Part Number: S/N R8831



  • When sanding plastic, use the lightest possible pressure. Only do touch-up sanding, not bulk material removal. If the contact temperature gets hot enough to melt the plastic, solid plastic deposits will block the grit and the abrasive belt or disc will be ruined. Make sure to clean all traces of plastic dust from the abrasive when you are done. If you leave plastic dust on the abrasive, it can melt and ruin the abrasive when the next user sands wood.
  • When sanding aluminum, use the lightest possible pressure. Only do touch-up sanding, not bulk material removal. Structural aluminum alloys are harder than the adhesive used to hold the grit to the paper. This means your aluminum workpiece is capable of scraping the grit off of the paper, which ruins the belt or disk.
  • Don't sand or leave anything wet unless you meticulously clean up afterwards, the table will rust.
  • The Disc portion of this tool is not maintained by Woodshop Zone (If required for small craft items contact the Zone Warden)
  • For safe control on the disc, rest your workpiece on the table if possible. If this is not possible, hold your workpiece and rest your hands on the table (but away from the disc!). The danger is that the disc could grab your workpiece and jerk your hand onto the disc. Please be aware that any part of your hand that gets sanded will be removed, not smoothed.
  • The table should be close to the disc, but not touching the disc. If a thin workpiece gets jammed into the gap, both the workpiece and the sander could be damaged. If you must hand-hold a thin workpiece, try sanding on the side of the disk that moves upward.


  • Let your workpiece touch the abrasive and have the sander's motor do the work. If you have to use force to press your workpiece into the abrasive, the belt or disc is worn out (and unsafe).

Authorized Users and Trainers

No equipment access set up. See User:pajamapuma or Equipment Access Project for help.

Other References


  • Periodically cleaning the abrasive belt or disc with the big natural rubber stick extends the life of the abrasive.
    • White plastic-sanding dust must be removed from the abrasive as soon as possible.
    • Solid plastic deposits cannot be removed from the abrasive with the big natural rubber stick; this just wastes rubber.
  • The sander takes 6" adhesive-backed discs and 4x?? belts

Things that Need to be Done