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Air Generation System; Air Supply Unit; Air Maker;
Air Generation System; Air Supply Unit; Air Maker;
Air Generation System; Air Supply Unit; Air Maker;
Air Generation System; Air Supply Unit; Air Maker;

Air Generation System; Air Supply Unit; Air Maker;

Name:Air generator

Model:EJ-A20

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Price varies based on configuration and order quantity. Contact us for a quote.
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Details Parameter Features FAQ

1) It can replace traditional high-pressure air cylinders and enable laboratory instrumentation;

2) It uses an 8L magnesium-aluminum alloy gas storage tank, which has high pressure resistance, does not rust, and has a large gas storage capacity. The generator starts and stops less often, which greatly extends the service life of the compressor;

3) The purifier uses PC polycarbonate pipes, which are resistant to high pressure, reagents, impact, not easy to break, and have high strength;

4) The gas system has three levels of purification and two levels of voltage stabilization output;

5) Three-level automatic protection of overpressure, overcurrent and overheating;

6) Automatic drainage, effectively extending the service life of the instrument;

 30L large-capacity stainless steel gas storage tank, which can provide air source for 10 gas chromatographs at the same time

More Spec.

Output flow (L/min): 0~20

Output pressure: 0~0.4Mpa (Adjustable)

Power supply: AC220V±10%

Rated power: 1000W

Dimensions: 340*600*740mm



Model EJ-A3 EJ-A5 EJ-A10 EJ-A20 EJ-A30
Output flow (L/min) 0~3 0~5 0~10 0~20 0~30
Output pressure 0~0.4Mpa (Adjustable)
Power supply AC220V±10%
Rated power 150W 1000W
Dimensions/weight 455*260*380mm/26Kg 340*600*740mm

1. Can products be customized?

Yes, all our dry cabinets and environmental chambers are fully customizable based on your technical specifications, capacity, materials (e.g., SUS304), and functional requirements (e.g., N₂ purge, heating, data logging).


2. What is the lead time?

• Standard models: 5–10 working days
• Customized configurations: 15–30 working days
Lead times may vary slightly based on order volume and component availability.


3. What trade terms do you support?

We offer flexible Incoterms® 2020 options to suit your logistics needs:

  • EXW (Ex-Works): You arrange pickup from our Hangzhou facility.
  • FOB (Free On Board): We deliver to the port of shipment; you handle ocean/air freight.
  • CIF (Cost, Insurance & Freight): We cover freight and insurance to your destination port. Import duties and local taxes are not included.
  • DAP (Delivered At Place): We deliver to your specified address. You handle import clearance, duties, VAT, and unloading.
  • DDP (Delivered Duty Paid): Available on request – we manage all costs including duties and taxes for door-to-door delivery.

Note: DDU is no longer used in Incoterms® 2020; DAP is the current standard.


4. How are shipping costs and taxes handled?

Shipping costs depend on product dimensions, weight, destination, and chosen transport method (sea, air, rail, or express). Import duties, VAT, GST, or other local taxes are typically the buyer’s responsibility unless DDP terms are selected. A detailed breakdown of all costs will be included in your official quotation.


5. What shipping methods are available?

  • Ocean freight (LCL/FCL)
  • Air cargo
  • Rail transport (e.g., China-Europe rail)
  • International express (DHL, FedEx, UPS, etc.)
  • Custom logistics solutions upon request

6. What payment methods do you accept?

  • Bank Transfer (T/T): 100% advance payment via SWIFT, FAST, MEPS, GIRO, or ACH
  • PayPal: For orders under USD 500, shipped via express only
  • Credit Card: Via secure payment gateway
  • Letter of Credit (L/C): Irrevocable L/C at sight, accepted for large orders


7. Do you have international export experience?

Yes. We regularly export to clients worldwide and are experienced in handling international documentation, customs compliance, and global logistics coordination for industrial equipment.

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About EJER
EJER Tech (China) is a technology-driven enterprise specializing in the R&D, production, and sales of dry cabinets, precision laboratory equipment, and specialized electrical systems. Headquartered in Hangzhou—adjacent to Alibaba’s global headquarters—we maintain a nationwide operational presence across China.
Our products are used worldwide and trusted by customers in electronics manufacturing, scientific research, government facilities, pharmaceuticals, chemical processing, and other precision-sensitive industries. Known for stable performance and reliability, EJER delivers solutions that meet the rigorous demands of global industrial and institutional applications.
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