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In industrial production, liquid nitrogen obtained by compressed liquid air fractionation can be used as a deep refrigerant. Because it is chemically inert, it can be directly in contact with biological tissues and immediately frozen without destroying biological activity, so it can be used
(1) Freezing and transporting food quickly, or making ice products;
(2) to conduct research on cryogenic physics;
(3) Demonstrate low temperature state in science education. At room temperature soft objects soaked in liquid nitrogen, will be as brittle as glass;
(4) Provide a high temperature superconductor to display the temperature required for superconductivity.
(5) can be used as refrigerant to quickly freeze biological tissue to prevent tissue damage.
(6) for industrial nitrogen fertilizer.
(7) for chemical testing.

| Mode | LPLN-10 | LPLN-20 | LPLN-40 | LPLN-80 | LPLN-120 | LPLN-240 | LPLN-480 | LPLN-720 | LPLN-960 | LPLN-1200 |
| Capacity | 0.3-0.4L/H 8-10L/day |
0.8-1L/H 20-24L/day |
1.6-2L/H 40-50L/day |
3L/H 72L/day |
5L/H 120L/day |
10L/H 240L/day |
20L/H 480L/day |
30L/H 720L/day |
40L/H 960L/day |
50L/H 1200L/day |
| Purity | ≥99% | ≥99% | ||||||||
| Votage | 220VAC 1P 50Hz |
380VAC 3P 50Hz 220VAC 1P 50Hz |
380VAC 3P 50Hz 220VAC 1P 50Hz |
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| Power(KW) | 2 | 4.5 | 7.5 | 12.5 | 15 | 27 | 45 | 55 | 84 | 92 |
| Area | 1 | 1.5 | 3 | 3.5 | 3.5 | 10 | 30 | 30 | 40 | 40 |
| Size | 750*650*1500 | 1150*850*2000 | 1250*2000*2000 | 1250*2000*2000 | 1250*2000*2000 | 6000*1100*2200 | 8000*1700*2300 | 8000*1700*2300 | 12000*1800*2350 | 12000*1800*2350 |
| Weight(kg) | 425kg | 710kg | ||||||||
| Ambient temperature | 0-30ºC | 0-30ºC | ||||||||
| Noise(dB) | <50Db | <50Db | <50Db | <50Db | <55Db | <72Db | <78Db | <78Db | <78Db | <78Db |



