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JET Disc Sanders

JET disc sanders deliver flat, accurate finishing for wood and metal work. Choose the size and power that fits your shop.

Choose your JET Disc Sanders

  • Save $ 466.07
    JET JET J-4400A 12" Industrial Disc Sander
    $ 2,500.07
    $ 2,034.00

    JET J-4400A 12" Industrial Disc Sander Are you losing time chasing clean edges and flat surfaces that should already be done right the first time?...

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  • Save $ 956.45
    JET JET J-4421 20" Industrial Disc Sander
    $ 5,135.45
    $ 4,179.00

    JET J-4421 20" Industrial Disc Sander Are your finishing and stock removal tasks slowing down production because your equipment can't keep pace wi...

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Choosing a JET Disc Sander for Your Shop

Finding the right JET disc sander comes down to disc size and motor power for your shop's finishing needs. Compare the specs below to match a model to your work.

JET J-4400A 12" Industrial Disc Sander

  • Disc Diameter: 12"
  • Motor: 1-1/2 HP
  • Voltage: 115/230V, 1Ph
  • Warranty: 2 Year

This model suits shops finishing smaller parts in wood and metal with steady, everyday use.

JET J-4421 20" Industrial Disc Sander

  • Disc Diameter: 20"
  • Motor: 3 HP
  • Voltage: 230V/460V, 3Ph
  • Warranty: 2 Year

This model suits shops handling large parts and steady, heavy-duty production runs.


JET Disc Sanders FAQs

What is the difference between the JET J-4400A and J-4421 disc sanders?

The main differences are disc size and power. The J-4400A has a 12" disc and runs on single-phase 115/230V power. The J-4421 has a 20" disc and requires three-phase power — built for heavier daily use.

What materials can JET industrial disc sanders handle?

JET disc sanders are designed for flat sanding on both metal and wood. The cast iron tables and rigid frames hold up to the demands of industrial shop use on either material.

Do JET disc sanders require three-phase power?

Only the J-4421 20" model requires three-phase power. The J-4400A 12" model runs on standard single-phase 115/230V and fits most shop electrical setups.



What other JET finishing machines does Advanced Machinery carry?

We also carry JET Belt Grinders and JET Bench Grinders for related metalworking and finishing work.