Comprag compressed air refrigerant dryer RDX, max. 14 bar operating pressure, flow rate from 5.2 to 7.7 m³
The Comprag RDX refrigerant dryers reliably deliver dry compressed air with a constant pressure dew point of +3 °C. They protect machines and tools from corrosion and condensate. Thanks to their compact design, they can be easily integrated into existing systems. Low-maintenance aluminum heat exchangers and hot gas bypass ensure efficient operation. Suitable for workshops, crafts, and industry at 5.2–7.7 m³/min.
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Comprag compressed air refrigerant dryer RDX, max. 14 bar operating pressure, flow rate from 5.2 to 7.7 m³ - 5.2 is backordered and will ship as soon as it is back in stock.
Questions & Help
Questions & Help
Do you have questions about one of our products or would you like professional advice on selecting the solution suitable for your application area?
No problem, give us a call! Tel. +49 (0) 2551 5030
Send us an email! shop@strahltechnik-express.de
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Leasing & Hire Purchase
Leasing & Hire Purchase
We offer exclusively for entrepreneurs, traders, and self-employed individuals financing options leasing and hire purchase for selected products starting from a net goods value of €1,000. Below you will find the essential differences between both financing forms.
Leasing
In leasing, the product is made available to the lessee for use against payment of regular leasing installments. The accounting is done by the lessor. The leasing installments can usually be claimed as business expenses for tax purposes. These are gross installments, and value-added tax is incurred throughout the entire term. After the agreed basic rental period, acquisition of the product by purchase is generally possible.
Hire Purchase
Hire purchase is economically equivalent to a installment purchase. The product is activated in the balance sheet of the hire purchaser and depreciated according to the official depreciation tables. Upon payment of the last hire purchase installment, ownership of the object transfers to the hire purchaser. The value-added tax must be paid in full with the first hire purchase installment (pass-through item).
Shipping & Delivery
Shipping & Delivery
The shipping of our goods depends on size, weight, and nature, either via parcel service or via freight forwarding. The choice of shipping method is made by us at our discretion.
The delivery times indicated in the online shop are non-binding estimates, unless a binding delivery date has been expressly confirmed in writing. They are based on the information available from our manufacturers, suppliers, and logistics partners at the time of the order.
A large part of the products offered is shipped directly from the manufacturer or from external central warehouses (direct shipping). As a result, delivery times may differ from the specified benchmarks. In particular, material shortages, production delays, delivery bottlenecks, force majeure, or other circumstances beyond our control may lead to delivery delays.
Disclaimer:
We accept no liability for delivery delays caused by circumstances that are outside our control. This particularly applies to delays caused by manufacturers, suppliers, transport companies, or other third parties. Liability for any resulting damages, especially for indirect damages, consequential damages, or lost profits, is excluded to the extent permitted by law.
Partial deliveries are permissible as long as they are reasonable for the customer. No additional shipping costs will be incurred unless otherwise agreed.
The exact delivery time of an item can be communicated individually upon request before or after the order.
Please contact us by phone at +49 (0)2551 5030 or by email at shipping@strahltechnik-express.de.
If there are significant delivery delays, we will inform the customer immediately. Mandatory legal rights of the customer remain unaffected.
High-performance dryers for large compressed air systems – Comprag RDX‑52, RDX‑65, RDX‑77
The RDX‑52 to RDX‑77 series dryers from Comprag provide reliable compressed air drying for systems with high volumetric flow rates. With a constant pressure dew point of +3 °C, they effectively protect machines, tools, and processes from corrosion and condensate. Thanks to their compact design, energy-efficient heat exchanger, and robust technology, they are ideal for professional continuous use.
✅ Highlights
- For volumetric flows from 5.2 to 7.7 m³/min
- Constant pressure dew point of +3 °C
- Integrated aluminum heat exchanger with demister
- Energy efficient through pre-evaporation and low pressure loss
- LED dew point display for quick visual control
- Ready for connection with 230 V – ideal for large compressor systems
🔧 Technical Data
* Measured according to ISO 7183: Operating pressure 7 bar, ambient +25 °C, inlet temperature +35 °C.
** Depending on the year of manufacture – see nameplate.
📏 Dimensions and Weight
📐 Adjustment of the flow rate to operating conditions
Here we offer you a practical calculator for Adjustment of the volumetric flow rate to individual operating conditions.
The rated outputs of our compressed air dryers are based on Standard conditions according to DIN ISO 7183 (7 bar, 35 °C inlet temperature, 25 °C ambient temperature).
Since real systems often have varying values, you can use this tool the correct dryer volumetric flow rate quickly and easily determine. To do this, enter the volumetric flow rate of your compressor as well as the corresponding Correction factors (F1, F2, F3) – the calculator shows you the required dryer volumetric flow rate in m³/min and l/min.
⚙️ Equipment
- LED display for operation, fault, and dew point status
- Color-coded dew point display (Green / Orange / Red)
- Hot gas bypass control against icing
- Time-controlled condensate drain (interval & duration adjustable)
- Integrated coalescence separator in the heat exchanger
- Energy savings through pre-evaporation
🏭 Typical areas of application
- Large compressor systems in industry and production
- Sandblasting systems, painting booths, powder coating
- Mechanical engineering and automation with high air demand
- Compressed air applications with high drying requirements
🔄 Suitable additions
- Adsorption dryer: for particularly dry compressed air (up to –40 °C dew point)
- Activated carbon adsorber: for the removal of oil vapors
- Fine & microfilters: for highest compressed air purity
- Compressed air tank: e.g. 500 – 1000 l for buffering
- Maintenance kits: Filter inserts & seals for annual maintenance
❓ FAQ – Frequently Asked Questions
-
Which model fits my system?
RDX‑52 for 5.2 m³/min, RDX‑65 for 6.5 m³/min, RDX‑77 for 7.7 m³/min. -
Why is a hot gas bypass control sensible?
It prevents freezing at partial load and increases lifespan. -
How often is maintenance required?
Weekly visual inspection, annual cleaning, and seal replacement. -
Is the dryer ready for connection?
Yes – all models are prepared for 230 V operation and can be used immediately. -
How do I recognize the drying status?
About the color-coded LED display – green = optimal.
Payment & Security
Payment methods
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Additionally, we offer you many other payment methods at the Checkout! through mollie.
