Compressed Air Purification & Energy-Saving Solutions
From refrigerated dryers to low-dew-point desiccant dryers and complete compressed air systems, Demargo delivers efficient, reliable, and customized solutions for industrial applications worldwide.
About Demargo
19 Years of Expertise in Compressed Air Purification
Demargo (Shanghai) Energy Saving Technology Co., Ltd. is a technology-driven manufacturer specializing in compressed air purification and energy-saving post-treatment equipment. We integrate R&D, production, sales, and service to provide comprehensive solutions for global industrial customers.
Certified National High-Tech Enterprise in China
Recognized as a "Specialized and Innovative" Company in Shanghai
Energy Efficiency
Zero-air-loss and low-purge designs significantly reduce energy consumption.
High Reliability
100% factory performance and leak testing ensures continuous operation.
Customization
Supporting non-standard customization and OEM for complex industrial needs.
Rapid Response
30-min response, 24h online guidance, and 48h on-site service support.
Product Range
High-Performance Air Drying & Filtration Systems
Offering 60+ product categories and 21 standard models. Our systems cover dew points from -23°C to -70°C, capacities up to 1200Nm³/min, and oil content as low as 0.003PPM.
DM200GF combined air dryer
A 20 m³/min combined type dehumidifier with low dew point, a…
DM350MR Micro heat adsorption air dryer
Heatless Desiccant Air DryerThe thermal regeneration adsorpt…
Energy-Saving 1.5nm³/Min Heatless Regeneration Adsorption Air Dryers
Heatless Desiccant Air DryerThe thermal regeneration adsorpt…
DM250APF Refrigerated air Dryer
Auto Drainage Energy-Saving ISO 9001 Certified Refrigerated …
DM500APF Refrigerated air Dryer
A 1800CFM refrigeration dryer, installed at the rear of the …
OEM Customized BXG Series Stainless Steel Air Filter
DM15NF Refrigerated air Dryer
The Compressor air dryer uses the principle of refrigeration…
DM40MR Micro-Heated Desiccant Air Dryer
Product OverviewDemargo DM40MR is a heavy-duty, high-stabili…
Honors & Qualifications
Honors & Certifications
Why Global Industries Choose Demargo?
Consistent -40℃ to -70℃ pressure dew point for high-purity air requirements.
Patented energy-saving regeneration designs that significantly lower operating costs.
Serving 40+ countries with reliable local support and 24h spare parts response.
Industry Solutions
Tailored Systems for Diverse Industrial Applications
Optimized configurations to ensure production stability and energy efficiency across 30+ industries.
Pipeline rust & corrosion: Moisture in compressed air ca…
Learn MoreExtremely high purity air requirement: Aerospace component m…
Learn MoreSmall air volume but high dew point requirement: Laboratorie…
Learn MoreApplication Success Stories
Proven Reliability in Complex Environments
Our systems are trusted by global leaders and deployed in some of the most demanding industrial sites worldwide.
Anhui project (Shouli centrifugal machine supporting)
Demargo provided supporting compressed air purification equi…
Large nitrogen and oxygen generator factory supporting equipment in Jiangsu
Demargo provided supporting compressed air purification equi…
Shandong Heavy Automobile Group supplies a project in Spain
Demargo provided a one-stop compressed air purification equi…
China National Petroleum Corporation offshore drilling platform
Demargo provided a one-stop compressed air purification equi…
Shandong chemical enterprise blower zero air consumption dryer
Demargo provided a blower zero air consumption dryer for a c…
A chemical plant in Shandong
Demargo provided a one-stop compressed air purification equi…
Technical Support & FAQ
Find quick answers to common questions about our products and services.
Our refrigerated air dryers achieve a pressure dew point of 2–10°C (35.6–50°F), while our desiccant and combined dryers can reach as low as -40°C to -70°C. All units undergo 100% performance testing to ensure stable dew point output even under varying load conditions.
We offer energy-saving technologies such as variable frequency drive (VFD), zero-purge, and heat of compression designs. These can reduce energy consumption by 30–50% compared to traditional non-cycling or heated purge dryers, delivering significant cost savings over the product lifecycle.
Our products comply with ISO 8573-1 standards. We provide mechanical test reports and video inspection before shipment upon request. Each unit is 100% leak-tested and performance-tested before leaving our factory. We also have CE certification for applicable models.
Yes. We provide OEM and customization services, including custom housing materials (stainless steel, carbon steel), special coatings, connection sizes, filtration grades, and even private labeling. Our in-house design team can work with you to meet unique project specifications.
Yes. We offer both mechanical test reports and video inspection before shipment upon request. Each unit undergoes 100% performance testing and leak detection before leaving our factory. You can review the test data and even schedule a live video check to confirm product quality before we ship.
Still have questions?
Our engineers are ready to provide expert guidance for your specific needs.