FS-Curtis RNB75 Non-Cycling Refrigerated Dryer 75 SCFM #FRNB00075-1XA5XX

FS-Curtis RNB75 — 75 SCFM Refrigerated Air Dryer

A shop running a mid-size rotary screw or multi-cylinder piston compressor needs a dryer that can keep pace with steady, higher-volume air demand without becoming the bottleneck in the system — and without the complexity of an oversized industrial unit.

That's what the FS-Curtis RNB75 solves — a 75 SCFM non-cycling refrigerated dryer, engineered to hold a consistent dew point across the workday, not just during light-demand stretches. It's also available with a factory-matched Filter Package (prefilter CF7-24-8-DGL + afterfilter CF5-24-8-DGL) as an add-on option, which means one call to Alamo gets you the dryer and its matched filtration, instead of chasing down filters separately later.

Who the RNB75 Is Built For

• ✅ A multi-bay shop running a mid-size rotary screw compressor (typically 15-30 HP) where several techs pull air from the same line throughout the day
• ✅ A shop that already has 3-phase power in place and wants a dryer sized to actually match the compressor's real output, instead of undersizing and choking the system
• ✅ An operation that needs consistent dew point control across a full 8-10 hour shift, not just intermittent weekend-warrior use
• ✅ A shop that's grown out of a smaller single-phase dryer and is tired of it cycling or falling behind once two or three bays are running air tools simultaneously
• ✅ A facility running sensitive downstream equipment — spray booths, sandblast cabinets, precision pneumatic tools — where wet air causes real, expensive problems

What the RNB75 Is NOT Built For

• ❌ Small single-bay shops with light, intermittent air demand — a smaller RNB model in the 115V tier saves real upfront cost
• ❌ Very high-volume industrial operations that exceed this unit's rated SCFM — check the 200+ SCFM models instead so the dryer isn't the bottleneck

What Makes the RNB75 Different

Heat Exchanger

The RNB75 uses a stainless steel brazed plate heat exchanger, engineered for reliable, consistent dew point control at 75 SCFM without fouling or excess pressure drop.

Condensate Drain

Timed electric drain removes collected moisture automatically — the cycle is fully automatic, so moisture never has a chance to build up between shifts.

Refrigerant & Air Quality

Uses R513A refrigerant, a low global-warming-potential option, and delivers ISO 8573-1:2010 Class 4–5 pressure dew point — dry, reliable air for general shop and industrial use.

Optional Filter Package

Choose the “Includes Filter Package” option to add a factory-matched prefilter (CF7-24-8-DGL) and afterfilter (CF5-24-8-DGL), sized to this dryer's flow rate and ready to plumb — one less step for your install crew.

Full Specifications — RNB75

FS-Curtis Warranty — RNB75

FS-Curtis backs the RNB75 with a 2-year parts & labor warranty.

Warranty service is through Alamo Equipment & Service — call (844) 480-6059 instead of waiting on a manufacturer hotline. Coverage is subject to FS-Curtis warranty terms, conditions, and requirements.