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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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.

Technical Specification

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Nitrogen Purity	95~99.999%
Nitrogen Flowrate	1~60Nm³
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-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-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-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-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-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-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-026F	Combined
KNA-30SD	156	30	25	15	KRD-039F	Combined