Best Refrigerated Air Dryer for Air Compressor
When selecting a refrigerated air dryer for your compressor system, consider airflow rate (CFM), maximum inlet pressure, dew point, and whether you need an integrated pre-filter or water separator. The following handpicked models from EDGE INDUSTRIAL and Ingersoll Rand offer reliable moisture and oil removal for different compressor sizes, helping maintain clean, dry air for tools and equipment.
The table below summarizes five well-suited options to help you compare at a glance.
| Product | CFM | Horsepower Range | Notes |
|---|---|---|---|
| Schulz Refrigerated Air Dryer, 35 CFM | 35 | 7.5–10 HP | With pre-filter; 41°F dew point; industrial water separator |
| SCHULZ Refrigerated Air Dryer, 50 CFM | 50 | 10–15 HP | Standalone dryer; pre-filter option |
| Schulz 75 CFM with Regulator | 75 | 15–20 HP | With regulator and water separator; complete kit |
| Schulz 100 CFM, 100 CFM with Pre-Filter | 100 | 20–25 HP | With pre-filter; comprehensive kit |
| Schulz 20–25 CFM, Standalone Dryer | 20 | 5 HP | Dryer only; pre-filter recommended |
Schulz 35 CFM Refrigerated Dryer
Brand: EDGE INDUSTRIAL. Features include a non-cycling refrigerated dryer rated at 35 CFM @ 100 PSI with a 1/2″ NPT inlet and outlet, a dew point of 41 degrees, and a 200 PSI max inlet. The kit includes an industrial water separator and oil-removing coalescing filter. It is a complete moisture- and oil-free air solution. Suitable for compressors up to 7.5–10 HP. Noted caveat: piping may require additional components outside the kit.
Schulz 50 CFM Refrigerated Dryer
Brand: EDGE INDUSTRIAL. A non-cycling refrigerated dryer rated at 50 CFM, 115V single phase. It emphasizes the need for a 1-micron water separator before the dryer for optimal performance and recommends selecting a pre-filter option for a complete kit including Stage 1 water separator and Stage 2 coalescing filter for oil.
Schulz 75 CFM With Regulator
Brand: EDGE INDUSTRIAL. This 75 CFM unit comes with an industrial-rated air pressure regulator and water separator, plus an oil-removing coalescing filter. The kit is designed to deliver moisture- and oil-free ultra-dry air. Drying capacity is 75 CFM at 100 PSI with 1″ NPT connections, dew point around 41°F, and 200 PSI max inlet. The compressor output should be limited to 175 PSI to protect filters.
Schulz 100 CFM With Pre-Filter
Brand: EDGE INDUSTRIAL. This high-capacity 100 CFM refrigerated dryer includes an arrow Pneumatics water separator and is offered as a complete kit with a pre-filter option. It handles 100 PSI operation with 1.25″ NPT inlet/outlet, dew point around 41°F, and a 200 PSI max inlet. Suitable for larger 20–25 HP compressors with robust moisture and oil removal capabilities.
Schulz 20 CFM Standalone Dryer
Brand: EDGE INDUSTRIAL. A 20 CFM refrigerated dryer designed as a standalone option for smaller systems (5 HP range). It emphasizes the dryer-only configuration with a recommendation to use a 1-micron pre-filter before the dryer for warranty compliance and optimal performance. The model maintains moisture control and supports compact setups.
Buying Guide
- Match CFM to your system: Choose a dryer that supports your compressor’s maximum operating CFM to avoid bottlenecks and ensure consistent dryness.
- Inlet pressure and dew point: Check the dryer’s maximum inlet pressure and target dew point (commonly around 41°F) to ensure your application’s requirements are met.
- Pre-filters and water separators: Many kits include or require upstream filtration. A 1-micron pre-filter and a water separator improve performance and extend dryer life.
- Filters and reliability: Look for models with built-in demisters, corrosion-resistant heat exchangers, and programmable drains to reduce energy waste and air losses.
- System integration: Consider whether you need a complete kit (dryer + stage 1 water separator + stage 2 coalescing filter) or a standalone unit to integrate with your existing filtration setup.
- Maintenance access: Choose designs that allow easy filter replacement and drain valve servicing to minimize downtime.
- Power and footprint: Ensure electrical requirements (115V single-phase typical) align with your shop or facility, and verify that the physical footprint fits your space.
- Warranty and warranty terms: Review warranty coverage related to moisture and oil removal performance to protect your investment.