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Professional Custom Air Dryers Supplier providing advanced compressed air purification solutions including refrigerated & desiccant dryers, PSA gas generators, membrane systems, and industrial water chillers.
Hangzhou Kelin Aier Qiyuan Equipment Co., Ltd. (KL-GAS) was established in 1997 as a professional manufacturer dedicated to the design and promotion of compressed air purifying equipment. With over 25 years of experience, we are a trusted name among China air dryers manufacturers and custom air dryers suppliers.
Our leading products include refrigerated air dryers, desiccant air dryers, compressed air filters, water chillers, and PSA nitrogen/oxygen generators. We also offer membrane-based gas separation systems for specialized applications.
We deliver reliable, innovative, and customized air purification solutions backed by decades of engineering excellence.
We provide tailor-made systems at competitive prices, including non-standard dryers for high pressure (30–200 bar) and special gases like CNG and biogas.
Backed by R&D investment and partnerships with global brands like Parker Hannifin and IR, we offer patented, high-efficiency solutions.
Our factory operates under ISO9001 and 6S management systems. We provide CE-certified and ASME code-compliant equipment.
Comprehensive range of air purification and gas generation systems for industrial applications.
Refrigerated, desiccant, heatless, heated, blower purge, and heat-of-compression models with dew points down to -70°C.
Learn More →Gas separation membranes with hollow fibers for nitrogen, oxygen, and methane enrichment with high selectivity.
Learn More →PSA nitrogen generators (97–99.999% purity) and oxygen generators (93±2%) for medical and industrial use.
Learn More →Air-cooled and water-cooled chillers from 1.5 to 80 tons with dual circuits, tandem scroll compressors, and custom pumps.
Learn More →High-performance equipment designed for reliability and efficiency in demanding environments.
Zero purge design, dew point down to -50°C, ideal for continuous operation with minimal energy loss.
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External heater regeneration, energy-efficient, suitable for medium to large-scale applications.
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Integrated refrigerated + desiccant system for ultra-low dew points in critical applications.
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Low operating cost, uses ambient air for regeneration, ideal for large volume systems.
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Utilizes compressor heat for regeneration, zero purge loss, max inlet 170°C, PDP -20 to -40°C.
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High-capacity models with aluminum or stainless steel heat exchangers for durability and efficiency.
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25 Nm³/h capacity, 93–95% purity, medical and industrial grade, includes site installation support.
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Integrated dryer, oil-water separator, and filter in a portable unit for mining and mobile operations.
View Details →Real-world applications demonstrating our engineering excellence and customer support.
KL KPO-25 oxygen generator (25 Nm³/h, 93–95% purity) installed at a medical gas station for cylinder filling. Our engineers provided on-site service and training.
KXC-1000 model (100 Nm³/min) for steel industry, with Siemens S7-300 PLC and MICHELL dew-point sensor. Max inlet 170°C, PDP -20 to -40°C.
We produce refrigerated air dryers, desiccant air dryers (heatless, heated, blower purge, heat of compression), combined dryers, and custom non-standard models for high pressure or special gases.
Yes, we offer full customization including high-pressure dryers (30–200 bar), CNG and biogas dryers, and integrated purification systems.
Our factory is ISO9001 certified. We provide CE-certified equipment and can supply ASME code-compliant air dryers upon request.
Yes, we have agents in Malaysia, Russia, Singapore, Brazil, Argentina, and Australia. We’ve been exporting since 2001 and offer global technical support.
Get expert advice or request a free quote for your air purification needs.
For detailed product specifications, technical documents, or to submit an inquiry, please visit the official KL-GAS website.
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