Combined Nitrogen Generator

Our compact nitrogen generator integrates a refrigerated air dryer, a precision filtration system, an air buffer tank, a nitrogen buffer tank, and a dual-tower nitrogen generator into a single skid-mounted unit. Users simply need to connect the air inlet to an air compressor and the nitrogen outlet to the nitrogen application. This design greatly optimizes the user experience by eliminating the need for installation and commissioning, saving both space and time, while providing a more efficient and convenient gas supply solution.


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Benefits

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● Air filters, air dryers, and nitrogen generator are fully integrated into one compact skid

Integrated Skid Design
● All systems are pre-installed and connected—simply connect power and air to start nitrogen production

True Plug-and-Play
● Designed for continuous operation with minimal downtime under demanding industrial conditions

Industrial Reliability
● Optimized PSA process reduces power consumption and lowers long-term operating costs

Energy Efficient Design

Product Characteristic

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All in One Design

Our combined model integrates air filters, refrigerated air dryer, and nitrogen generator to a single skid, offers no installation requirement but true plug-and-play operation

Siemens PLC

Powered by a Siemens PLC, the system supports parameter configuration, real-time operation monitoring, alarm management, and remote communication, simplifying maintenance and system integration

Automatic Venting Control

The automatic venting system discharges off-spec gas during startup and seamlessly switches to product gas once purity targets are reached, ensuring uninterrupted and reliable nitrogen supply

Application

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Laser Cutting

Medium-scale laser cutting operations generally consume 50–300 Nm³/h of nitrogen at 99.9–99.99% purity to achieve clean cutting edges and oxidation-free surfaces

Metal Welding Protection

Welding and brazing processes typically require moderate nitrogen flow at 99.9–99.99% purity to protect weld seams and improve joint quality

Lithium Battery Manufacturing

Battery production lines normally consume 100–500 Nm³/h of high-purity nitrogen (99.99–99.999%) to protect sensitive materials and ensure product consistency

FAQ

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Why choose our combined nitrogen generator?

Our combined nitrogen generator integrates a refrigerated dryer, precision filtration system, air buffer tank, nitrogen buffer tank, and dual-tower PSA nitrogen generator into a single skid-mounted unit. Users simply connect the air inlet to a compressor and the nitrogen outlet to their application. The compact system eliminates the need for installation and commissioning, saving time and space while providing a streamlined gas solution.
Why choose on-site nitrogen generation instead of liquid or bottled nitrogen?

On-site nitrogen generation offers lower investment and operating costs, requires less space, and is easier to manage and maintain compared to liquid or bottled nitrogen supply.
How does the operating cost of on-site nitrogen generation compare to liquid or bottled nitrogen supply?

The operating cost of on-site nitrogen generation is significantly lower due to the elimination of transportation, rental, and storage fees.
Is on-site nitrogen generation suitable for small businesses?

Yes, it’s highly suitable. With a quick return on investment, small businesses often gain greater cost advantages using on-site nitrogen generators.
How does on-site gas equipment ensure gas purity and stability?

Each unit is rigorously factory-tested to meet purity, flowrate, and performance standards. With regular maintenance, the system provides stable and reliable nitrogen output.
What is the advantage of a combined system?

A combined system integrates air filters, air dryers, nitrogen generator and internal pipings on a single skid. Offering reduced footprint, quick deployment and hassle-free installation.
Do you have to turn on the air dryer manually on a combined unit?

No, we manufactured our own dryers, thus it comes with chain control functionality. So when you turn on the nitrogen generator on the PLC screen, the whole unit (including air dryers) automatically turns on by itself. Same when turning off the unit.
Do you have to change any valve settings in the cabinet before turning on the unit?

No, everything single unit comes out our factory comes pre-tuned, and pre-commissioned. Tested to make sure every unit meets the customer’s nitrogen requirements. Simply connect the unit to power and compressed air source and the unit is ready to go.
What is the typical maintenance cost for a nitrogen generator?

It depends on the size and configuration of the unit.

Technical Specification

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Nitrogen Purity	95~99.9999%
Nitrogen Flowrate	1~3000Nm³
Nitrogen Dew Point	-60~-30℃
Nitrogen Pressure	6~8Bar
Air Inlet Pressure	8~10Bar
Air Inlet Temperature	20~35℃
Voltage/Frequency	220v/50~60Hz

Note: Specific requirements can be made upon request

Product Specification

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KNA-SA

Purity: 99%

Model	Air to N₂ Ratio (Nm³)		Inlet & Outlet Dimension（DN）		Air Dryer Model	Unit Structure
Model	Air Consumption	N₂ Output	Inlet	Outlet	Air Dryer Model	Unit Structure
KNA-10SA	22.5	10	15	15	KRD-015F	Combined
KNA-20SA	45.0	20	15	15	KRD-015F	Combined
KNA-30SA	67.5	30	20	15	KRD-026F	Combined
KNA-60SA	135	60	25	25	KRD-039F	Combined
KNA-100SA	225	100	32	25	KRD-070F	Standard
KNA-150SA	337.5	150	40	25	KRD-085F	Standard
KNA-300SA	675	300	50	40	KRD-140F	Standard
KNA-600SA	1350	600	65	50	KRD-290F	Standard
KNA-1000SA	2250	1000	100	65	KRD-460F	Standard
KNA-1500SA	3375	1500	100	65	KRD-750F	Standard

KNA-SA+

Purity: 99.5%

Model	Air to N₂ Ratio (Nm³)		Inlet & Outlet Dimension（DN）		Air Dryer Model	Unit Structure
Model	Air Consumption	N₂ Output	Inlet	Outlet	Air Dryer Model	Unit Structure
KNA-10SA+	27	10	15	15	KRD-015F	Combined
KNA-20SA+	54	20	15	15	KRD-026F	Combined
KNA-30SA+	81	30	20	15	KRD-026F	Combined
KNA-60SA+	162	60	25	20	KRD-039F	Combined
KNA-100SA+	270	100	32	25	KRD-070F	Standard
KNA-150SA+	405	150	40	32	KRD-108F	Standard
KNA-300SA+	810	300	50	40	KRD-220F	Standard
KNA-600SA+	1620	600	65	50	KRD-365F	Standard
KNA-1000SA+	2700	1000	100	65	KRD-550F	Standard
KNA-1500SA+	4050	1500	125	65	KRD-800W	Standard

KNA-SB

Purity: 99.9%

Model	Air to N₂ Ratio (Nm³)		Inlet & Outlet Dimension（DN）		Air Dryer Model	Unit Structure
Model	Air Consumption	N₂ Output	Inlet	Outlet	Air Dryer Model	Unit Structure
KNA-10SB	33	10	15	15	KRD-015F	Combined
KNA-20SB	66	20	15	15	KRD-026F	Combined
KNA-30SB	99	30	20	15	KRD-026F	Combined
KNA-60SB	198	60	32	20	KRD-070F	Standard
KNA-100SB	330	100	40	25	KRD-085F	Standard
KNA-150SB	495	150	40	32	KRD-140F	Standard
KNA-300SB	990	300	50	40	KRD-250F	Standard
KNA-600SB	1980	600	80	50	KRD-420F	Standard
KNA-1000SB	3300	1000	100	65	KRD-700F	Standard

KNA-SB+

Purity: 99.95%

Model	Air to N₂ Ratio (Nm³)		Inlet & Outlet Dimension（DN）		Air Dryer Model	Unit Structure
Model	Air Consumption	N₂ Output	Inlet	Outlet	Air Dryer Model	Unit Structure
KNA-10SB+	37	10	15	15	KRD-015F	Combined
KNA-20SB+	74	20	20	15	KRD-026F	Combined
KNA-30SB+	111	30	20	15	KRD-039F	Combined
KNA-60SB+	222	60	25	20	KRD-070F	Standard
KNA-100SB+	370	100	40	25	KRD-108F	Standard
KNA-150SB+	555	150	50	32	KRD-140F	Standard
KNA-300SB+	1110	300	65	40	KRD-250F	Standard
KNA-600SB+	2220	600	80	50	KRD-460F	Standard
KNA-1000SB+	3700	1000	100	65	KRD-800W	Standard

KNA-SC

Purity: 99.99%

Model	Air to N₂ Ratio (Nm³)		Inlet & Outlet Dimension（DN）		Air Dryer Model	Unit Structure
Model	Air Consumption	N₂ Output	Inlet	Outlet	Air Dryer Model	Unit Structure
KNA-5SC	21	5	15	15	KRD-015F	Combined
KNA-10SC	42	10	15	15	KRD-015F	Combined
KNA-20SC	84	20	20	15	KRD-026F	Combined
KNA-30SC	126	30	25	15	KRD-039F	Combined
KNA-60SC	252	60	32	20	KRD-070F	Standard
KNA-100SC	420	100	40	20	KRD-108F	Standard
KNA-150SC	630	150	50	25	KRD-170F	Standard
KNA-200SC	840	200	50	40	KRD-220F	Standard
KNA-300SC	1260	300	65	40	KRD-290F	Standard
KNA-600SC	2520	600	100	50	KRD-550F	Standard

KNA-SC+

Purity: 99.995%

Model	Air to N₂ Ratio (Nm³)		Inlet & Outlet Dimension（DN）		Air Dryer Model	Unit Structure
Model	Air Consumption	N₂ Output	Inlet	Outlet	Air Dryer Model	Unit Structure
KNA-5SC+	23	5	15	15	KRD-015F	Combined
KNA-10SC+	46	10	15	15	KRD-026F	Combined
KNA-20SC+	92	20	20	15	KRD-026F	Combined
KNA-30SC+	138	30	25	15	KRD-039F	Combined
KNA-60SC+	276	60	32	20	KRD-070F	Standard
KNA-100SC+	460	100	40	20	KRD-108F	Standard
KNA-200SC+	920	200	50	40	KRD-220F	Standard
KNA-300SC+	1380	300	65	40	KRD-326F	Standard
KNA-500SC+	2300	500	100	50	KRD-500F	Standard
KNA-600SC+	2760	600	100	50	KRD-600F	Standard

KNA-SD

Purity: 99.999%

Model	Air to N₂ Ratio (Nm³)		Inlet & Outlet Dimension（DN）		Air Dryer Model	Unit Structure
Model	Air Consumption	N₂ Output	Inlet	Outlet	Air Dryer Model	Unit Structure
KNA-5SD	26	5	15	15	KRD-015F	Combined
KNA-10SD	52	10	15	15	KRD-026F	Combined
KNA-20SD	104	20	20	15	KRD-039F	Combined
KNA-30SD	156	30	25	15	KRD-039F	Combined
KNA-60SD	312	60	40	20	KRD-085F	Standard
KNA-100SD	520	100	50	20	KRD-140F	Standard
KNA-200SD	1040	200	65	40	KRD-250F	Standard
KNA-300SD	1560	300	65	40	KRD-365F	Standard