Gardner Denver GDX7M -70°C Modular desiccant dryer

Description Gardner Denver GDX7M -70°C Modular desiccant dryer

A compact Modular desiccant dryer with New Digital Controller for low-capacity compressed air systems. Provides deep air drying down to a -70°C dew point, preventing corrosion, condensate freezing, pneumatic system damage, and microorganism growth. Used in the chemical, food, pharmaceutical, automotive, and oil & gas processing industries.

Technical specifications of GDX7M:

• Capacity: 0.53 m³/min, 32 m³/h

• Dew Point: -70°C

• Operating Pressure: max. 14 bar

• Connection: BSP 3/4"

• Dimensions: 475×405×968 mm

• Weight: 44 kg

• Power Supply: 230 V / 1 phase / 50–60 Hz

• Regeneration Type: Heatless (PSA)

• Regeneration Type: Heatless (PSA)

• Control: New Digital Controller

The dryers use a heatless PSA method for regenerating the adsorbent material. The design does not heat up and minimizes maintenance costs.

PSA desiccant dryer are the simplest type of desiccant dryers and have long been the best choice for many industries and applications. They are simple, reliable, and cost-effective solutions for small and medium flow systems, often the only available working technology. Additionally, the modular desiccant dryer is a reliable, compact, and lightweight drying device that can be installed both in a compressor room and at the point of use.

Key advantages of GDX7M -70°C:

✅ High air quality: ISO Class 1 
✅ Reduced ownership cost thanks to a design that processes only the required amount of air
✅ Easy to use
✅ Compact design for space-saving installation
✅ High efficiency with low air consumption
✅ Low noise level, less than 75 dB
✅ Easy maintenance and operation
✅ Supplied with pre- and post-filters
✅Proven pneumatic purge valves
✅ Solenoid control valve
✅ IP65 protection for the controller

The dryer has a compact design for optimized installation with air inlet and outlet ports located at the rear of the unit, and connecting pipes can be positioned on either the right or left side. The GDX7M model can be wall-mounted or installed horizontally.

Desiccant dryer operating technology

Desiccant dryers work on the principle of moisture always migrating to the driest medium possible. Therefore,water vapour is removed from compressed air by passing it over an adsorbent desiccant material.

As the air contacts the adsorbent material, water vapourtransfers from the wet air to the dry desiccant, however,adsorbent materials have a fixed adsorption capacity and once this capacity is reached, they must be regeneratedor replaced. Therefore, to provide a continuous supply of clean, dry compressed air, adsorbent dryers utilise two chambers of desiccant material and at any one time, whilst one chamber is on-line, drying the incoming compressed air, the other is either off-line, being regenerated or is re-pressurised, ready to come on-line. All desiccant dryers remove water in this manner.

New Digital Controller (used in models 0.67–5.00)

• Intuitive touchscreen interface with simple navigation
• Preventive maintenance alerts based on operating hours:
• Filter element replacement
• Muffler replacement
• Valve servicing
• Desiccant replacement
• Dew point sensor maintenance (for DS models)
• Modbus (RS-485) support for remote monitoring and DCS integration
• Compressor interlock function — optimizes purge cycle based on compressor load

This controller enhances reliability, simplifies maintenance, and reduces total operating costs.

Spare parts and consumables:

• Replacement adsorbent kit
• Pre-filter element
• Post-filter element
• Regeneration muffler
• Solenoid valves
• Gasket and seal kit

Delivery and warranty

Nationwide delivery across Ukraine – fast and reliable shipping by transport companies.
Manufacturer’s warranty – official Gardner Denver warranty.