In many modern industries, compressed air must be not only clean but also ultra-dry,with a very low dew point to protect equipment and ensure consistent product quality. Gardner Denver Desiccant Air Dryer - This system is a premium compressed air treatment solution that utilizes specialized desiccant materials to virtually eliminate moisture, meeting the most stringent compressed air quality requirements in industrial applications

Gardner Denver air compressor was founded in 1859, is one of the first air compressor system corporations and one of two corporations that owns many brands. Kobelco 55 kW Air Compressor world's best. Gardner Denver offers varieties High efficiency air compressor. Gardner Denver Air Compressors & Air Dryers & Air Filters Mainly used for automatic machinery in areas requiring high precision, harsh and dangerous working environments.

What is an adsorption air dryer?

During the compression process, the intake air always contains moisture, dust, and may also carry oil vapor (in the case of oil-lubricated compressors). If not properly treated, these contaminants can directly affect compressed air equipment and product quality, especially in industries that require clean compressed air such as precision engineering, coating and painting, electroplating, food processing, pharmaceuticals, textiles, coffee and cashew processing, and electronics.

Desiccant air dryers are designed to thoroughly remove moisture,ensuring that compressed air is dried and purified before entering the production system. They are an essential solution for facilities that require extremely low dew points and high-quality compressed air.

Overview of Gardner Denver Desiccant Air Dryers

Gardner Denver air compressor is a global group with decades of experience in the field compressed air, air treatment, and vacuum technology. Gardner Denver Desiccant Air Dryers are specifically designed for compressed air systems that require extremely dry air. They are an essential solution for facilities that require extremely low dew points and high-quality, where refrigerated air dryers can no longer meet the technical requirements

Unlike refrigerated air dryers, which typically achieve a dew point of around +3°C, Gardner Denver desiccant air dryers can achieve:

• -20°C
• -40°C
• Even as low as -70°C (depending on configuration)

This helps completely prevent the occurrence of freezing, moisture condensation, and corrosion in pipelines and compressed air equipment.

Operating Principle of Gardner Denver Desiccant Air Dryers

Desiccant air dryers use two drying towers each filled with desiccantmaterial such as molecular sieve or activated alumina

• When compressed air passes through the operating tower, moisture inthe air is captured by the desiccant particles, producing dry compressed air with a deep dew point.
• At the same time the other tower undergoes regeneration, releasing theabsorbed moisture to restore the desiccant’s drying capacity.
• The two towers alternate through an automatic valve system, allowing the dryer to operate continuously, stably, and without interruption in the compressed air supply.

Thanks to this mechanism, Gardner Denver desiccant air dryers ensure the supply of ultra-dry, stable, and reliable compressed air for the most demanding industrial applications.

General Features of Gardner Denver Desiccant Air Dryers

Gardner Denver desiccant air dryers are optimally designed for compressed air systems that require deep dew points and continuous operation. Key features include:

• High adsorption capacity and long service life thanks to the use of high-performance activated desiccant.
• Stable outlet air quality, controlled by an intelligent microprocessor-based control system that automatically switches between drying and regeneration cycles at the optimal timing.
• Optimized tower design with superior thermal retention, preserving up to 98% of the adsorption heat, improving regeneration efficiency and extending the service life of the desiccant.
• Uniform air distribution structure ensures balancedairflow through the desiccant bed, preventing channeling that could reduce drying efficiency.
• High-quality pneumatic switching valves, featuring fast opening and closing, excellent sealing performance, and ensuring stable operation and long-term reliability

Types of Desiccant Air Dryers

Desiccant air dryers are divided into two main types, depending on the regeneration method of the desiccant material:

Heatless Desiccant Air Dryer

Desiccant Air Dryer Heatless the desiccant is regenerated by using a portion of the dry compressed air taken directly from the system outlet. After passing through the regeneration tower, this air is discharged to the atmosphere, carrying away the absorbed moisture.

The system consists of two drying towers operating alternately: one tower dries the compressed air, while the other regenerates the desiccant.:
The switching cycle occurs automatically, ensuring a continuous air supply.

Because they don't use heaters or auxiliary power sources, heatless systems have low initial investment costs and a simple structure . However, they require some compressed air for regeneration, resulting in higher operating costs and a simpler design. However, the machine needs to consume some compressed air for regeneration, leading to The operating costs are higher compared to models with heating.

Standard operating parameters

• Processing throughput: 1.1 – 127 m³/phút
• Rated working pressure: 0.7 MPa
• Maximum working pressure: 1.0 MPa
• Pressure dew point: multiple options depending on product grade.
• Renewable gas consumption: ≈ 14% output flow
• Maximum intake air temperature: according to the manufacturer's standard configuration.

Heatless Adsorption Dryer
Model	Flow	Voltage	Air Connection Pipe Diameter		Dimensions LWH (mm)		Weight kg
	m3/min	V/Ph/hz	VLi	VLi20	VLi	VLi20	VLi	VLi20
GD66VLi / GD66VLi20	1.1	220/1/50	3/4"BSPT	3/4"BSPT	7304801550	7304801550	132	132
GD126VLi / GD126VLi20	2.1	220/1/50	3/4"BSPT	3/4"BSPT	9505501630	8505001610	168	144
GD198VLi / GD198VLi20	3.3	220/1/50	1"BSPT	3/4"BSPT	10506001680	9505501630	321	168
GD282VLi / GD282VLi20	4.7	220/1/50	1-1/2"BSPT	1"BSPT	10506001680	10506001680	342	321
GD426VLi / GD426VLi20	7.1	220/1/50	1-1/2"BSPT	1-1/2"BSPT	12506501760	10506001680	405	342
GD660VLi / GD660VLi20	11	220/1/50	2"BSPT	1-1/2"BSPT	13507001840	12506501760	485	405
GD780VLi / GD780VLi20	13	220/1/50	2"BSPT	2"BSPT	13507001840	13507001840	565	485
GD960VLi / GD960VLi20	16	220/1/50	2-1/2"BSPT	2"BSPT	14508001930	13507001840	814	565
GD1260VLi / GD1260VLi20	21	220/1/50	3"BSPT	2-1/2"BSPT	16809502060	14508001930	955	814
GD1560VLi / GD1560VLi20	26	220/1/50	3"BSPT	3"BSPT	17509502080	16809502060	1112	955
GD1860VLi / GD1860VLi20	31	220/1/50	3"BSPT	3"BSPT	185010002150	17509502080	1238	1112
GD2520VLi / GD2520VLi20	42	220/1/50	DN100FLG	3"BSPT	200011002260	185010002150	1537	1238
GD3060VLi / GD3060VLi20	51	220/1/50	DN125FLG	DN100FLG	210012002430	200011002260	1818	1537
GD3720VLi / GD3720VLi20	62	220/1/50	DN125FLG	DN125FLG	220012652430	210012002430	2156	1818
GD4920VLi / GD4920VLi20	82	220/1/50	DN150FLG	DN125FLG	232014002680	220012652430	2860	2156
GD6780VLi / GD6780VLi20	113	220/1/50	DN150FLG	DN150FLG	242014502680	232014002680	3820	2860
GD7620VLi / GD7620VLi20	127	220/1/50	DN150FLG	DN150FLG	262015002750	242014502680	4226	3820

Key features

• No power source or additional heater required.
• Simple structure, easy to operate.
• Stable operation at low ambient temperatures.
• High safety and reliability
• Low initial investment cost

Recommended application

Suitable for compressed air systems:

• Small to medium flow
• Intermittent gas usage
• Remote control station
• Power plant, laboratory
• Areas with limited auxiliary power supply.

Heated adsorption air dryer (Heated Dryer - electric resistance)

Desiccant Air Dryer Heated it operates similarly to the Heatless series but with integrated features. electric resistance heater The compressed air is preheated before being fed into the regeneration tower. The hot air helps to release moisture from the desiccant beads more effectively, thereby increasing regeneration efficiency and reducing compressed air consumption during the regeneration process..

The system still uses two drying towers in rotation::
A compressed air drying tower and a hot air desiccant regeneration tower. The automatic switching cycle ensures a continuous and stable air supply.

Equipped with a heating element and temperature sensors, the Heated series has a higher initial investment cost, butthis is offset by lower operating costs due to significant savings in recycled gas compared to the Heatless series.

Standard operating parameters

• Processing throughput: 1.1 – 145 m³/phút
• Rated working pressure: 0.7 MPa
• Maximum working pressure: 1.0 MPa
• Pressure dew point: multiple options depending on product grade.
• Renewable gas consumption: ≈ 8% output flow
• Maximum intake air temperature: according to the manufacturer's standard configuration.

Micro-Heat Adsorption Dryer
Model	Flow	Voltage V/Ph/hz		Heater Power Kw		Air Connection Pipe Diameter		Dimensions LWH (mm)		Weight kg
	m3/min	VEi	VEi20	VEi	VEi20	VEi	VEi20	VEi	VEi20	VEi	VEi20
GD66VEi / GD66VEi20	1.1	220/1/50	220/1/50	0.5	0.5	3/4"BSPT	3/4"BSPT	7304801550	7304801550	145	145
GD126VEi / GD126VEi20	2.1	220/1/50	220/1/50	1	1	3/4"BSPT	3/4"BSPT	9505501650	8505001600	186	152
GD198VEi / GD198VEi20	3.3	220/1/50	220/1/50	1.5	1	1"BSPT	3/4"BSPT	10506001720	9505501650	347	186
GD282VEi / GD282VEi20	4.7	220/1/50	220/1/50	2.1	1.5	1-1/2"BSPT	1"BSPT	10506001720	10506001720	385	347
GD426VEi / GD426VEi20	7.1	220/1/50	220/1/50	3	2.1	1-1/2"BSPT	1-1/2"BSPT	12506501800	10506001720	447	385
GD660VEi / GD660VEi20	11	380/3/50	220/1/50	4.2	3	2"BSPT	1-1/2"BSPT	13507001900	12506501800	533	447
GD780VEi / GD780VEi20	13	380/3/50	380/3/50	4.8	4.2	2"BSPT	2"BSPT	13507001900	13507001900	611	533
GD960VEi / GD960VEi20	16	380/3/50	380/3/50	6	4.8	2-1/2"BSPT	2"BSPT	14508001980	13507001900	867	611
GD1260VEi / GD1260VEi20	21	380/3/50	380/3/50	7.8	6	3"BSPT	2-1/2"BSPT	16809502100	14508001980	1009	867
GD1560VEi / GD1560VEi20	26	380/3/50	380/3/50	9	7.8	3"BSPT	3"BSPT	17509502110	16809502100	1145	1009
GD1860VEi / GD1860VEi20	31	380/3/50	380/3/50	10.8	9	3"BSPT	3"BSPT	185010002190	17509502110	1302	1145
GD2520VEi / GD2520VEi20	42	380/3/50	380/3/50	15	10.8	DN100FLG	3"BSPT	200011002300	185010002190	1611	1302
GD3060VEi / GD3060VEi20	51	380/3/50	380/3/50	18	15	DN125FLG	DN100FLG	210012002450	200011002300	1912	1611
GD3720VEi / GD3720VEi20	62	380/3/50	380/3/50	21	18	DN125FLG	DN125FLG	220012652470	210012002450	2280	1912
GD4920VEi / GD4920VEi20	82	380/3/50	380/3/50	30	21	DN150FLG	DN125FLG	232014002720	220012652470	3046	2280
GD6780VEi / GD6780VEi20	113	380/3/50	380/3/50	37.5	30	DN150FLG	DN150FLG	242014502720	232014002720	3982	3046
GD7620VEi / GD7620VEi20	127	380/3/50	380/3/50	42	37.5	DN150FLG	DN150FLG	262015002800	242014502720	4396	3982
GD8700VEi / GD8700VEi20	145	380/3/50	380/3/50	51	42	DN200FLG	DN150FLG	300017002900	262015002800	5060	4396

Key features

• Hot air regeneration with high desorption efficiency
• Significantly lower regeneration air consumption
• Achieves a deep and stable dew point
• Suitable for large-flow systems
• Low operating costs in the long term.

Recommended application

• High-flow compressed air system
• The factory operates continuously 24/7.
• The industry requires ultra-dry compressed air.
• The area has a stable power supply.
• Central compressed air supply for the entire factory.

Practical applications of Gardner Denver Absorption Air Dryers

Gardner Denver adsorption air dryers are widely used in:

• Electronics and semiconductor industry
• Pharmaceutical and healthcare industry
• Premium food and beverages
• Chemical processing
• The factory is located in a cold environment.

According to the operating engineer's assessment, the system using adsorption air dryers completely eliminates condensation problems, reducesequipment failures, and improves production stability.

Guide to selecting the right adsorption air dryer

Businesses should determine:

• Required dew point
• System compressed air flow rate
• Working pressure
• Operating mode (shift-based or 24/7 operation)

Choosing the right configuration helps optimize investment efficiency and operating costs.

Why should you buy Gardner Denver adsorption air dryers from Phuc Hung?

• Practical experience in design of compressed air and air treatment systems
• Consulting the right technology – the right dew point – the right application.
• Provide Genuine Gardner Denver Desiccant Air Dryer.
• Transparent technical service, warranty, and after-sales support.

Are you looking for Gardner Denver Desiccant Air Dryer to ensure ultra-dry compressed air, protect equipment, and improve production quality
👉 Contact carried out maintenance and oil sludge (varnish) removal for to receive in-depth technical consultation, select the most suitable model, and obtain the most competitive quotation for your factory.