Blocking Machine Tender

Tend machines that seal optical or ophthalmic lens blanks in metal blocks.
picture of Blocking Machine Tender

Quick Stats


Salary Range
$18,000 – $49,000

Data from U.S. Department of Labor


What do Blocking Machine Tenders do?

Tends blocking machine that seals optical or ophthalmic lens blanks in metal blocks preparatory to grinding and polishing of lenses: Applies lacquer to lens blank, using spray gun or brush. Mounts lens and block in blocking machine, aligns marks on lens blank and block, and clamps lens and block in place. Pulls lever to admit molten pitch or metal alloy and water through holes in block and starts machine that bonds lens blank to block. Pours molten pitch or loads solid metal into machine to replenish supply. May tend machine that casts metal block and bonds lens to block in one operation.


Should I be a Blocking Machine Tender?

You should have a high school degree or higher and share these traits:
  • Detail Oriented: You pay close attention to all the little details.
  • Reliable: You can always be counted on to do a good job.
  • Levelheaded: You hold your emotions in check, even in tough situations.

  • How to become a Blocking Machine Tender

    Blocking Machine Tenders generally graduate from high school and get on-the-job training. Think about earning a Certificate or Associate’s degree to increase your chances of finding a good job. Check out these schools offering Blocking Machine Tender-related education!
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