857 Keith Lane, Owings, MD 20736     |     800.604.9653     |     Monday-Friday 8am-5pm

CDHM Series

Dual Tower Desiccant Air Dryers

The CDHM Series desiccant air dryers use the proven “Pressure Swing Adsorption” (PSA) method for drying wet compressed air. This requires having two identical towers containing hygroscopic desiccant. The unique design of the CDHM Series allows for the dryer to start and stop with a compressor or point-of-use equipment to eliminate purge loss when off. The solid-state memory feature allows the dryer to start where it left off in the drying cycle to prevent wet air downstream.


  • 3 – 50 SCFM
  • Maximum Working Pressure: 150 PSIG
  • Maximum Inlet Temperature: 120°F
  • Pressure Dewpoints to -100°F
  • Unique Energy Saving Design
  • Eliminate purge loos with remote start/stop control


  • Solid-state timer with LED display for visual monitoring
  • Built-in timer memory
  • Low-velocity air through the desiccant for more efficient drying
  • Large internal air passages to reduce pressure drop
  • NEMA 4 components (protects against water spray and dust)
  • Minimal threaded connections for fewer leak points than competitive units
  • Easy change out desiccant cartridges
  • Components are all easily serviced and field-replaceable – no special tools
  • Full repressurization before tower switch-over causes less shocking of the desiccant and no pressure fluctuation
  • No plug mufflers – will not rupture or reduce dryer efficiency
  • 6-ft. electric power cord
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