Sponge-Jet’s manufacturers and distributes a wide range of tested and qualified abrasive blasting accessories to support and enhance the needs of those who conduct surface preparation. From test equipment to blast nozzles to hoses and safety devices, Sponge-Jet leads the industry in thoughtful tools to improve productivity and safety.

Hour Meter

For most contractors, it’s not fun or easy tracking abrasive blasting hours. That’s no longer the case with the Sponge-Jet Feed Unit™ Hour Meter which automatically records actual blast hours for comparison against overall jobsite production. Use the data for better planning, improved scheduling, and quoting on future projects, and to adhere more easily to Feed Unit maintenance schedules.

Benefits include:

  • Track actual blast hours
  • Auto-activated timer starts when media is feeding
  • Displays hours and tenths of hours
  • Improve planning with actual production data
  • Never miss maintenance from knowing cumulative blast hours


  • Product Name: Hour Meter
  • Part #: SJ-HMA
  • Weight: 0.9 kg (2 lb)
  • Length: 9 cm (3.75 in)
  • Width: 7 cm (2.5 in)
  • Height: 6 cm (2.25 in)

*Estimated for use in temps below 100˚F/37.8˚C; operating in higher or lower temps can reduce battery life.


  • IK08-rated for Impact Protection against mechanical impacts (DIN EN 50102)
  • No short-term power requirements with ten-year lithium battery*
  • Simple self-install kit for non-factory installation (or add-on during Feed Unit purchase)
  • Completely enclosed, fiberglass, poly carbonate enclosure; no buttons to damage

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