CHANUN Integrated Screw Compressor Portfolio: Refrigerated Dryer vs Desiccant Dryer Models for Different Air‑Quality Demands

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CHANUN Integrated Screw Compressor Portfolio: Refrigerated Dryer vs Desiccant Dryer Models for Different Air‑Quality Demands

Release time:

2026-08-20

Moisture inside compressed air brings multiple risks: corrosion of pneumatic tools and pipelines, defective painted finishes, and shortened service life of downstream equipment. CHANUN provides two mainstream integrated solutions: EF, DKF, KF and C6GTF series built‑in refrigerated air dryers, and C10GTF2 equipped with desiccant (heatless‑type) air dryer, helping customers pick proper integrated all‑in‑one machines according to target pressure‑dew‑point requirements.

Refrigerated‑Dryer Integrated Models: EF / DKF / KF / C6GTF Series

These product lines integrate screw air‑end, air receiver, refrigerated air dryer plus configurable multi‑stage precision filters into one compact unit.

Working principle of built‑in refrigerated air dryer

Compressed air is cooled down to 2‑10 °C by refrigeration cycle; water vapour condenses into liquid water and gets drained out. It delivers pressure dew point of 2‑10 °C. No compressed‑air purge consumption during operation, only minor power consumption for the refrigeration system.

Core strengths

Plug‑and‑play integration: Factory pre‑assembled whole system. Customers only connect power supply and air outlet piping, eliminating separate purchase and complicated field piping work.
Cost‑effective air treatment: Low investment cost, simple structure, low failure rate and easy daily maintenance.
Morse‑taper direct‑drive air‑end (EF/DKF/KF): Eliminates intermediate gears and couplings, zero transmission loss, reduces long‑term maintenance workload.
D‑series patented air‑end (C6GTF): Comes with CHANUN official water‑accumulation damage compensation warranty, protecting users against condensate‑caused rotor rust.
External three‑filter layout: Users can replace filter elements without full cabinet disassembly.

Suitable application scenarios

Best‑fit for general‑grade dry‑air requirements: auto repair shops, general machinery processing, hardware workshops, conventional painting, small manufacturing plants. These models cover about 80 % of regular market demands for compressed‑air post‑treatment.

Desiccant‑Dryer Integrated Model: C10GTF2 Series

When processes demand ultra‑dry compressed air beyond refrigerated dryer capacity, choose C10GTF2 integrated screw compressor fitted with heatless‑regeneration desiccant air dryer.

Working principle of built‑in heatless desiccant dryer

Dual‑tower adsorbent design using activated‑alumina desiccant to trap water vapour. One tower adsorbs moisture for production; the other tower gets regenerated by diverting part of finished dry compressed‑air (15‑20 % purge air consumption). Automatic tower switching ensures uninterrupted air output. It reaches pressure dew point of ‑20 °C ~ ‑40 °C for deep drying performance.

Core strengths

Ultra‑low pressure dew point: Delivers deeply dried compressed air, prevents water condensation even in cold ambient environments.
Complete all‑in‑one unit: Screw compressor, air receiver, multi‑stage precision filters and heatless desiccant dryer are fully integrated. No extra post‑processing hardware needed on‑site.
Stop‑on‑pressure control: The unit automatically shuts down once target pressure is achieved, cutting idle power waste.
Low‑noise operation: Operating noise as low as 59 dB(A), friendly for indoor workshop environments.

Suitable application scenarios

High‑end auto refinishing & custom paint shops, precision CNC machining, high‑grade spraying, electronic component production, laboratories and other applications requiring extremely dry compressed air.

Quick Selection Guidance

Pick EF / DKF / KF / C6GTF (refrigerated dryer type) for ordinary workshops where pressure dew point requirement ≥ 2 °C, pursuing good cost‑performance ratio.
Choose C10GTF2 (desiccant dryer type) if you need pressure dew point down to ‑20 ~ ‑40 °C for deep‑drying critical processes.

Tip: If you want extra‑low dew‑point while keeping running‑cost under control, you can adopt the combined solution: refrigerated dryer as pre‑treatment + desiccant dryer as post‑treatment, which extends desiccant service life.

Closing

CHANUN’s diversified integrated compressor lineup covers conventional to high‑precision compressed‑air drying requirements. Instead of assembling scattered separate components on‑site, factory‑integrated units simplify installation, commissioning and maintenance. Contact CHANUN sales team for model selection advice and quotation according to your required pressure dew‑point, power rating and flow demand.