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PSA Nitrogen Generator For Laser Cutting

PSA Nitrogen Generator For Laser Cutting

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PSA Nitrogen Generator For Laser Cutting

Laser cutting with nitrogen is intended for applications where oxidation is not wanted. For example, an oxide layer can cause paint to adhere less strongly on non-alloy steel. If non-alloy steel is painted after cutting, the cutting gas should be nitrogen. Weldable steel components laser cut with oxygen will not pass the bending test. Stainless steel loses its corrosion resistance when cut with oxygen, and aluminum pieces cut with oxygen have an uneven and burred cut surface.

When nitrogen is used as the cutting gas, the laser beam melts the material, and the nitrogen blows away the molten material from the cutting groove. Since no exothermic reaction takes place, the cutting speed is much slower than when cutting with oxygen. To ensure a burr-free cut edge, the laser beam must usually be focused on the bottom surface of the plate.
N2 (1)

The advantages of nitrogen use in Laser Cutting include:
Nitrogen is inert, dry, non-flamable gas used to remove oxygen.
Prevents Oxidation, scaling or discolorization
Rapidly removes molten metal or dross from cutting zone
Protects laser optics, mirrors and lenses
Gives edges better adhesion for Paint
Gives welded edges improved bend strength
Removes particulate from beam path reducing distor

Cape-Golden Nitrogen Generator produces Nitrogen at purity about 93~99.999%, and the capacity can be from 1~300Nm3/hour. 

PSA Nitrogen Generator Work Principle
 
PSA nitrogen technology utilizes two towers which are filled with carbon molecular sieve (CMS). Compressed air enters the bottom of one tower. While the smaller oxygen molecules are adsorbed by the CMS, the larger nitrogen molecules pass through the sieve and are stored. Once the CMS of the working tower is saturated with oxygen, the regeneration of the CMS in the tower starts to work by depressurizing, and while another tower is switched to start the process over again.
 B6B63B57-39F1-4DD4-BB94-B6A9024175DA

Specification&Selection

Cape-Golden PSA Nitrogen generator

Capacity (Nm³/h)

Purity(%)

Model

5

95

CANL-5

99

CANP-5

99.5

CANG-5

99.9

CANH-5

99.99

CANZ-5

99.999

CANHZ-5

10

95

CANL-10

99

CANP-10

99.5

CANG-10

99.9

CANH-10

99.99

CANZ-10

99.999

CANHZ-10

20

95

CANL-20

99

CANP-20

99.5

CANG-20

99.9

CANH-20

99.99

CANZ-20

99.999

CANHZ-20

30

95

CANL-30

99

CANP-30

99.5

CANG-30

99.9

CANH-30

99.99

CANZ-30

99.999

CANHZ-30

50

95

CANL-50

99

CANP-50

99.5

CANG-50

99.9

CANH-50

99.99

CANZ-50

99.999

CANHZ-50

100

95

CANL-100

99

CANP-100

99.5

CANG-100

99.9

CANH-100

99.99

CANZ-100

99.999

CANHZ-100

200

95

CANL-200

99

CANP-200

99.5

CANG-200

99.9

CANH-200

99.99

CANZ-200

99.999

CANHZ-200

300

95

CANL-300

99

CANP-300

99.5

CANG-300

99.9

CANH-300

99.99

CANZ-300

99.999

CANHZ-300

500

95

CANL-500

99

CANP-500

99.5

CANG-500

99.9

CANH-500

99.99

CANZ-500

99.999

CANHZ-500

1000

95

CANL-1000

99

CANP-1000

99.5

CANG-51000

99.9

CANH-1000

99.99

CANZ-1000


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