Small Integrated Liquid Nitrogen Generator
The small liquid nitrogen machine is a plug-and-play liquid nitrogen solution.
It adopts the mixed-refrigerant Joule-Thomson (MRJT) cooling technology. Based on the regenerative multi-component mixed-refrigerant throttle refrigeration cycle, it selects pure components with high, medium, and low boiling points to form a multi-component mixed refrigerant from ambient temperature to the target cooling temperature, realizing the relay matching of effective cooling temperature ranges for each boiling-point component.
It is a refrigerator capable of efficiently achieving a cooling range of -40°C ~ -196°C.
| 型号 | WSDLN-10 | WSDLN-20 | WSDLN-40 | WSDLN-80 | WSDLN-120 |
|---|---|---|---|---|---|
| Output | 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 |
| Purity | ≥99% | ||||
| Voltage Frequency | 220VAC 1P 50Hz | 380VAC 3P 50Hz 220VAC 1P 50Hz | |||
| Power(kw) | 2 | 4.5 | 7.5 | 12.5 | 15 |
| Area(㎡) | 1 | 1.5 | 3 | 3.5 | 3.5 |
| Equipment Dimension(mm) | 750*650*1500 | 1150*850*2000 | 1250*2000*2000 | 1250*2000*2000 | 1250*2000*2000 |
| Required room area(㎡) | > 5 | > 6 | > 10 | > 15 | > 15 |
| Ambient temperature requirements | 0-30℃ Good ventilation | ||||
| One meter noise(Db) | < 50Db | < 50Db | < 50Db | < 50Db | < 75Db |
| Cooling method | air-cooled | ||||
| Nitrogen quantity(m³/h) | 1 | 2 | 4 | 6 | 8 |
| Nitrogen dew point(℃) | -60℃ | ||||
| Nitrogen pressure(Mpa) | 0.8 | ||||
| Recommendations for Liquid Nitrogen Tanks(L) | 30 | 50 | 100 | 175 | 300 |
Medium-sized Liquid Nitrogen Equipment
The medium-sized liquid nitrogen generator is a skid-mounted liquid nitrogen solution. It adopts the mixed-refrigerant refrigeration MRJT process, which is based on the recuperative multi-component mixed-refrigerant Joule-Thomson (MRJT) refrigeration cycle. From ambient temperature to the target refrigeration temperature, it optimally selects pure components with high, medium, and low boiling points to form a multi-component mixed refrigerant, achieving the relay matching of the effective refrigeration temperature ranges of each boiling-point component. It is a refrigeration machine that can efficiently achieve the temperature range of -40 to -196°C.
| 型号 | WSDLN-240 | WSDLN-480 | WSDLN-720 | WSDLN-960 | WSDLN-1200 | WSDLN-1920 | WSDLN-2400 |
|---|---|---|---|---|---|---|---|
| Output | 10L/H 240L/day | 20L/H 480L/day | 30L/H 720L/day | 40L/H 960L/day | 50L/H 1200L/day | 80L/H 1920L/day | 100L/H 2400L/day |
| Purity | ≥99% | ||||||
| Voltage Frequency | 380VAC 3P 50Hz 220VAC 1P 50Hz | ||||||
| Power(kw) | 27 | 45 | 55 | 84 | 92 | 155 | 190 |
| Area(㎡) | 10 | 30 | 30 | 40 | 40 | 60 | 60 |
| Equipment Dimension(mm) | 6000*1100*2200 | 8000*1700*2300 | 8000*1700*2300 | 12000*1800*2350 | 12000*1800*2350 | 16000*2000*2350 | 16000*2000*2350 |
| Required room area(㎡) | > 30 | > 50 | > 50 | > 80 | > 80 | > 120 | > 120 |
| Container size | 20GP | 40HQ 9.5m length | 40HQ 10m length | 40HQ | 40HQ | 40HQ +20GP | 40HQ +20GP |
| Ambient temperature requirements | 0-30℃ Good ventilation | ||||||
| One meter noise(Db) | < 72Db | < 78Db | < 78Db | < 78Db | < 78Db | < 78Db | < 78Db |
| Cooling method | Water Cooling | ||||||
| Cooling water volume(m³/h) | 4 | 8 | 8 | 15 | 15 | 30 | 37 |
| Nitrogen quantity(m³/h) | 15 | 30 | 40 | 50 | 60 | 100 | 130 |
| Nitroaen dew point(℃) | -60℃ | ||||||
| Nitrogen pressure(Mpa) | 0.8 | 1.6 | 0.8 | 1.6 | 0.8 | 0.8 | 0.8 |
| Recommendations for Liquid Nitrogen Tanks(L) | 500 | 1000 | 1000 | 2000 | 2000 | 5000 | 5000 |
Liquid Nitrogen Generator Flow Chart
Complete process from compressed air to high‑purity liquid nitrogen — reliable PSA‑based cryogenic system.
Provides compressed air (0.8‑1.0 MPa)
Stabilizes pressure, removes moisture
Removes dust, oil mist, particles
Eliminates CO₂ to below 5 ppm
Separates N₂ from air, purity ≥99%
Cryogenic liquefaction into liquid nitrogen
Stores LN₂ ready for use
For medical or food‑grade applications
Common conversion tables between gas volume, mass and standard state
| Gas 介质 | Weight 重量 kg | Liquid 液态 L | Standard state 标态 m³ |
|---|---|---|---|
| 氧O₂ | 1000 | 877 | 700 |
| 1140 | 1000 | 798 | |
| 1429 | 1254 | 1000 | |
| 氮N₂ | 1000 | 1235 | 799 |
| 810 | 1000 | 648 | |
| 1251 | 1544 | 1000 | |
| 氩Ar | 1000 | 709 | 561 |
| 1410 | 1000 | 799 | |
| 1784 | 1265 | 1000 | |
| 二氧化碳CO₂ | 1000 | 639 | 506 |
| 1564 | 1000 | 791 | |
| 1977 | 1264 | 1000 | |
| 氢H₂ | 1000 | 14085 | 11136 |
| 71 | 1000 | 791 | |
| 89.8 | 1264 | 1000 | |
| 甲烷CH₄ | 1000 | 2381 | 1395 |
| 420 | 1000 | 586 | |
| 717 | 1706 | 1000 |
WEISIDUN
Our Services
Our Services and Guarantees
Warranty:
We warrant that there are no defects in material and workmanship of thisequipment, and one year warranty for whole machine except consum-ables.The warranty period is from the date the equipment is shipped fromthe factory.
After-sale service:
Our company independent technical team and after-sales department pro-vides 24/7/365 online service and guidance of installation and mainte-nance for free.
Installation and commissioning:
We will provide installation connection video as a guide before shipment,And After receiving the goods, our engineers will provide online installa-tion guidance.
Part replacement:
Our company guarantee all the key parts are original from factory. If partbroke, we would provide original part which can be shipped within oneweek and free online guidance for maintenance.