
Corrosion- and acid- and alkali-resistant water-cooled screw units (single head)
Online Enquiry
Product Details
These water – cooled screw units are engineered for demanding industrial environments where corrosion, acid, and alkali resistance are crucial.
1. Design
- The single – head design ensures efficient cooling. The body is made of corrosion – resistant materials, which can withstand harsh chemical environments. It has a robust structure to prevent leaks and damage.
2 Performance - The unit offers high – performance cooling, with a powerful screw compressor. It can maintain stable operation even in corrosive conditions, ensuring long – term reliability.
- The cooling system is optimized for heat transfer, providing consistent and effective cooling.
3 Application - Ideal for industries such as chemical manufacturing, pharmaceutical production, and wastewater treatment. It can handle a variety of liquids, including acidic and alkaline solutions.
- Suitable for both small – scale and large – scale industrial applications, ensuring reliable operation in different settings.
Product Parameter
- Water-cooled Screw
- Water-cooled Screw-2
- Air-cooled Screw
- Air-cooled Screw-2
Model Number | 100WD | 120WD | 150WD | 180WD | 200WD | 240WD | 280WD | 300WO | 360WD | 400WD | 460WD | 480WD | 540WD | |||
Nominal cooling capacity | 7℃ | kcal/h | 286036 | 307364 | 411080 | 511872 | 569036 | 667360 | 794468 | 847100 | 1021852 | 1211052 | 1320616 | 1437232 | 1589968 | |
kW | 332.0 | 35T.4 | 478.0 | 305.2 | 662.0 | 776.0 | 923.8 | 985.0 | 1188.2 | 1408.2 | 1535.0 | 1671.2 | 1843.8 | |||
12℃ | kcal/h | 341592 | 367048 | 453388 | 611288 | 580604 | 736876 | 548924 | 1011704 | 1220340 | 1446348 | 1577068 | 1681958 | 1898706 | ||
kW | 397.2 | 426.8 | 570.8 | 710.8 | 7914 | 926.6 | 1103.4 | 1176.4 | 1419.0 | 1681.8 | 1833.8 | 1955.8 | 2207.8 | |||
input power | kw | 69.6 | 77 | 100.6 | 123.4 | 133.2 | 159.2 | 183.8 | 197.2 | 240.8 | 280.2 | 314 | 333.6 | 369.4 | ||
voltage | 3PH 380V~415V 50Hz/60Hz | |||||||||||||||
Refrigerant | type | R22 | ||||||||||||||
charge | kg | 27*2 | 33*2 | 42*2 | 48*2 | 55*2 | 68*2 | 77*2 | 88*2 | 110*2 | 121*2 | 132*2 | 143*2 | 165*2 | ||
Control | Thermostatic expansion valve | |||||||||||||||
Compresser | type | semi-hermetic screw | ||||||||||||||
Power | kw | 34.8*2 | 38.5*2 | 50.3*2 | 61.7*2 | 66.6*2 | 79.6*2 | 91.9*2 | 96.6*2 | 120*2 | 140*2 | 157*2 | 167*2 | 185*2 | ||
Start mode | ||||||||||||||||
Capacity control | % | 0-25-50-75-100 | ||||||||||||||
Evaporator | type | shell and tube | ||||||||||||||
Chilled water volume | m3/h | 52.2 | 59 | 79 | 91.2 | 99.4 | 124.8 | 151.6 | 162 | 169 | 231.4 | 254 | 271.4 | 306 | ||
Water pressure drop | kPa | 42 | 42 | 46 | 43 | 45 | 45 | 43 | 48 | 44 | 45 | 42 | 45 | 46 | ||
Pipe connection | inch | 4 | 4 | 5 | 6 | 6 | 6 | 6 | 8 | 8 | 8 | 10 | 10 | 10 | ||
Condenser | type | shell and tube | ||||||||||||||
Chilled water volume | m3/h | 64.6 | 73.2 | 98.4 | 112 | 123.4 | 154 | 191 | 202 | 248 | 290 | 318 | 340 | 382 | ||
Water pressure drop | kPa | 41 | 42 | 42 | 45 | 48 | 46 | 48 | 48 | 46 | 42 | 48 | 48 | 48 | ||
Pipe connection | inch | 4 | 4 | 3*2 | 3*2 | 4*2 | 4*2 | 4*2 | 5*2 | 5*2 | 5*2 | 5*2 | 6*2 | 6*2 | ||
Satery devices | Pressure repair machine overheating protection, overcurrent protection, high and low pressure protection, over sea protection, flow rate protection. Phase sequence/phase failure protection, low liquid level protection, anti-freezing protection, exhaust overheating protection. | |||||||||||||||
Dimension | Length | mm | 2800 | 2950 | 3150 | 3480 | 3400 | 3650 | 3650 | 3750 | 4230 | 4230 | 4350 | 4350 | 4420 | |
Width | mm | 780 | 810 | 850 | 875 | 895 | 1120 | 1220 | 1300 | 1380 | 1480 | 1450 | 1560 | 1650 | ||
Height | mm | 1650 | 1650 | 1750 | 1850 | 1850 | 1950 | 1950 | 2100 | 2150 | 2250 | 2250 | 2300 | 2450 | ||
Net weight | kg | 1850 | 2200 | 2650 | 2800 | 3450 | 3950 | 4100 | 4450 | 5000 | 5250 | 5500 | 5750 | 6000 | ||
Running weight | kg | 2150 | 2500 | 2970 | 3400 | 4160 | 4350 | 4700 | 5050 | 5700 | 5950 | 6100 | 6350 | 6600 |
Model Number | 300WD | 340WD | 400WD | 480WD | 600WD | 680WD | 800WD | 920WD | 950WD | 1080WD | |||
Nominal cooling capacity | 7℃ | kcal/h | 822160 | 968704 | 1139672 | 1334720 | 1694200 | 1997608 | 2422104 | 2641232 | 2874120 | 3179936 | |
kW | 956.0 | 1126.4 | 1325.2 | 1552.0 | 1970.0 | 2322.8 | 2816.4 | 3071.2 | 3342.0 | 3697.6 | |||
12℃ | cal/h | 981776 | 1156872 | 1361208 | 1593752 | 2023408 | 2385640 | 2892696 | 3154136 | 3363976 | 3797416 | ||
kW | 1141.6 | 1345.2 | 1582.8 | 1853.2 | 2352.8 | 27740 | 3363.6 | 3667.6 | 3911.6 | 4415.6 | |||
input power | kw | 201 | 226 | 266 | 318 | 394 | 466 | 560 | 628 | 666 | 738 | ||
voltage | 3PH 380V~415V 50Hz/60Hz | ||||||||||||
Retrigerant | type | R22 | |||||||||||
charge | kg | 42*4 | 48*4 | 55*4 | 68*4 | 88*4 | 108*4 | 121*4 | 132*4 | 143*4 | 165*4 | ||
Control | Thermostatic expansion valve | ||||||||||||
Compresser | type | semi-hermetic screw | |||||||||||
Power | kw | 50*4 | 56.5*4 | 66.5*4 | 79.5*4 | 98.5*4 | 116*4 | 140*4 | 157*4 | 166*4 | 184*4 | ||
Start mode | Y-△ | ||||||||||||
Capacity control | % | 0-25-50-75-100 | |||||||||||
Evaporator | type | sheli and tube | |||||||||||
Chilled water volume | m3/h | 158 | 182.4 | 198.8 | 249.6 | 324 | 382.8 | 462.8 | 508 | 542.8 | 612 | ||
Water pressure drop | kPa | 46 | 43 | 45 | 45 | 48 | 43 | 45 | 42 | 45 | 46 | ||
Pipe connection | inch | 8*2 | 8*2 | 10*2 | 10*2 | 10*2 | 10*2 | 12*2 | 12*2 | 8*4 | 8*4 | ||
冷凝器 Condenser | type | shell and tube | |||||||||||
Chilled water volume | m3/h | 196.8 | 224 | 246.8 | 308 | 404 | 476 | 580 | 636 | 680 | 764 | ||
Water pressure drop | kPa | 42 | 45 | 48 | 46 | 48 | 45 | 42 | 48 | 48 | 48 | ||
Pipe connection | inch | 6*2 | 6*2 | 8*2 | 8*2 | 8*2 | 4*4 | 4*4 | 6*4 | 6*4 | 6*4 | ||
Satery devices | Compressor overheat protection, overcurrent protection, high and low pressure protection, over-return protection, flow protection, phase sequence/phase failure protection, and Low level protection, Anti-freezing protection, Exhaust gas overheating protection. | ||||||||||||
Dimension | Length | mm | 3150 | 3480 | 3480 | 3650 | 3750 | 3750 | 4230 | 4350 | 4350 | 4420 | |
Width | mm | 1700 | 1750 | 1790 | 2240 | 2600 | 2900 | 2960 | 2900 | 3300 | 3300 | ||
Height | mm | 1750 | 1850 | 1850 | 1950 | 2100 | 2150 | 2250 | 2250 | 2300 | 2450 | ||
Net weight | kg | 2650 | 2800 | 3450 | 3950 | 4450 | 4700 | 5250 | 5500 | 5750 | 6000 | ||
Running weight | kg | 3200 | 3380 | 4160 | 4760 | 5270 | 5460 | 6100 | 6400 | 6680 | 6970 |
Model Number | 40A | 5OA | 60A | 75A | 85A | 100A | 120A | 150A | |||
Nominal cooling capacity | 7℃ | kcal/h | 96148 | 126248 | 135622 | 181460 | 213796 | 251464 | 294550 | 373842 | |
kw | 1118 | 146.8 | 157.7 | 2110 | 248.6 | 292.4 | 342.5 | 434.7 | |||
12℃ | kcal/h | 115412 | 151532 | 162798 | 217752 | 256624 | 301860 | 353460 | 448748 | ||
kw | 134.2 | 176.2 | 189.3 | 2532 | 298.4 | 351.0 | 4110 | 521.8 | |||
input power | kw | 36.1 | 44.3 | 51.2 | 67 | 76.3 | 88.3 | 105.5 | 131.6 | ||
voltage | 3PH 380V~415V 50Hz/60Hz | ||||||||||
Refrigerant | type | R22 | |||||||||
charge | kg | 28 | 35 | 42 | 52 | 60 | T0 | 84 | 105 | ||
Control | Themostatic expansion valve | ||||||||||
Compresser | type | semi-hermetic screw | |||||||||
Power | kW | 33.7 | 41.9 | 46.4 | 60.6 | 69.9 | 80.3 | 95.9 | 118.8 | ||
Start mode | Y-△ | ||||||||||
Capacity control | % | 0-25-50-75-100 | |||||||||
Evaporator | type | shell and tube (ss plate heatexchanger) | |||||||||
Chilled water volume | m3/h | 18 | 23.6 | 25.7 | 34.4 | 40.5 | 46,4 | 55 | 69.5 | ||
Water pressure drop | kPa | 32 | 35 | 38 | 42 | 45 | 43 | 43.3 | 41 | ||
Pipe connection | inch | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 5 | ||
Condenser | type | Air-cooled high-efficiency aluminium fins with internal threaded copper bushing | |||||||||
Fan | type | Large phoenix volume low noise reduction outgoing sub-fan | |||||||||
Power | kW | 0.6*4 | 0.6*4 | 0.8*6 | 0.8*8 | 0.8*8 | 0.8*10 | 0.8*12 | 0.8716 | ||
Air valume | m3/h | 40000 | 50000 | 60000 | 80000 | 90000 | 100000 | 116000 | 135000 | ||
Satery devices | Overheat protection, overcurrent protection, high and low pressure protection, over temperature protection, flow protection, phase sequence/phase loss protection. Low liquid level protection, anti-freezing protection, exhaust overheating protection. | ||||||||||
Dimension | Length | mm | 2180 | 2350 | 2650 | 3310 | 3470 | 4090 | 4870 | 4870 | |
Width | mm | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | ||
Height | mm | 2050 | 2050 | 2050 | 2243 | 2243 | 2243 | 2243 | 2243 | ||
Net weight | kp | 1300 | 1600 | 1900 | 2350 | 2550 | 2800 | 2950 | 2950 | ||
Running weight | kg | 1450 | 1750 | 2100 | 2550 | 2800 | 3050 | 3250 | 3250 |
Model Number | 40W | 50W | 60W | 75W | 85W | 100W | 120W | 150W | 180W | 200W | 24ON | 270W | |||
Nominal coaling capacity | 7℃ | kcal/h | 108962 | 143018 | 153682 | 205540 | 242176 | 284918 | 333680 | 423550 | 510926 | 605526 | 718616 | 794984 | |
kW | 126.7 | 166.3 | 178.7 | 239.0 | 2816 | 331.3 | 388.0 | 492.5 | 594.1 | 704.1 | 835.6 | 924.4 | |||
12℃ | kcal/h | 130118 | 170796 | 183524 | 245444 | 289218 | 340302 | 398438 | 505852 | 610170 | 723174 | 858194 | 549354 | ||
kw | 1513 | 198.6 | 213.4 | 285.4 | 336.3 | 395.7 | 4613 | 5882 | 709.5 | 840.9 | 9979 | 1103.9 | |||
input power | kW | 28 | 34.8 | 38.5 | 50.3 | 56.7 | 66.6 | 79.6 | 98.6 | 120.4 | 140.1 | 166.8 | 184.7 | ||
voltage | 3PH 380V~415V 50Hz/60Hz | ||||||||||||||
Reftigerant | type | R22 | |||||||||||||
charge | kg | 22 | Z7 | 33 | 42 | 48 | 55 | 68 | 88 | 110 | 121 | 143 | 165 | ||
Control | Thermostatic expansion valve | ||||||||||||||
Compresser | type | semi-hermetic screw | |||||||||||||
Power | kw | 28 | 34.8 | 38.5 | 50.3 | 56.7 | 66.6 | 79.6 | 98.6 | 120.4 | 140.1 | 1658 | 184.7 | ||
Start mode | Y-△ | ||||||||||||||
Capacity control | % | 0-25-50-75-100 | |||||||||||||
Evaporator | type | shell and tube (ss plate heatexchanger) | |||||||||||||
Chilled water volume | m3/h | 20.5 | 26.1 | 29.5 | 39.5 | 45.6 | 49.7 | 62.4 | 81 | 98 | 115 | 135.7 | 153 | ||
Water pressure drop | kPa | 32 | 35 | 38 | 42 | 42 | 45 | 40 | 43 | 45 | 45 | 43 | 47 | ||
Pipe connection | inch | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 6 | E | ||
Condenser | type | shell and tube | |||||||||||||
Chilled water volume | m3/h | 25 | 32.3 | 36.6 | 49.2 | 56 | 61.7 | 77 | 101 | 125 | 125 | 170 | 191 | ||
Water pressure drop. | kPa | 42 | 42 | 43 | 43 | 43 | 45 | 48 | 46 | 48 | 48 | 45 | 47 | ||
Pipe connection | inch | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 3*2 | 3*2 | 4*2 | 4*2 | 4*2 | ||
Satery devices | Compressor overheating protection, overcurrent protection, high and low pressure protection, over-temperature protection, flow protection, phase sequence/phase out protection, and Low liquid level protection, anti-freezing protection, gas overheating protection. | ||||||||||||||
Dimension | Length | mm | 2500 | 2550 | 2600 | 2800 | 2800 | 2900 | 3000 | 3300 | 3800 | 3900 | 4300 | 4500 | |
Width | mm | 780 | 780 | 780 | 950 | 950 | 950 | 1200 | 1380 | 1380 | 1380 | 1480 | 1480 | ||
Height | mm | 1650 | 1650 | 1650 | 1800 | 1950 | 1950 | 1580 | 1630 | 1750 | 1750 | 1780 | 1780 | ||
Net weight | kg | 900 | 1050 | 1200 | 1800 | 1900 | 2050 | 2500 | 2650 | 3150 | 3350 | 3850 | 4160 | ||
Running weight | kg | 1050 | 1200 | 1350 | 1980 | 2150 | 2250 | 2700 | 2900 | 3400 | 3650 | 4150 | 4460 |
Note: The above products are constantly improving and innovating, if there is a change, without notice, detailed specifications, please also call +86 189-3325-1512 (Echo Liang) (products can be customised)!
Working Principle

Based globally, we specialize in providing complete solutions for auxiliary equipment such as industrial refrigeration, plastic recycling, and temperature control for grinding tools.
If you have any questions about our products, and want to find our help, you can click the button below to send us a message!