Water cooled low temperature screw chiller is an integrated refrigeration system designed to achieve directional heat transfer through mechanical cycling. Its core function is to efficiently transfer heat from low-temperature environments to high-temperature environments to achieve temperature control range -40℃ to 35℃. The equipment comprises a closed-loop system integrating key components such as compressors, condensers, expansion valves, and evaporators, which utilize the phase-change cycle of refrigerants. The system is widely applied across industries, including: New Energy, Industrial Manufacturing, Aerospace Testing, Pharmaceuticals, Automotive & Die-Casting.
Aligned with carbon neutrality objectives, refrigeration units leverage continuous technological innovation to ensure reliable civil cold chain operations and industrial production support. They are emerging as pivotal infrastructure for advancing green low-carbon development.
◆Safety
The unit include inverse phase,high and low pressure,thermal overload,low level,antifreeze protection,etc.
◆High-quality components
The unit use high strength welded frame
The brand of the compressor used is from Europe and Japan.
The water tank and water pipe made of stainless steel SUS304
The refrigeration valve from Danfoss,Emerson,Sporlan and other well-known brands
Electrical components supplied from ABB,SIEMENS,Schneider ...
◆Communication Feature
The standard unit has remote switch interface and fault transmission interface,Rs485 communication function is optional
◆ Control System
Adopts microcomputer automatic control or PLC control
◆ Customized Service
Other refrigerants can be selected,such as R22,R407C,R404A,R134A,R410A etc
Other evaporator type can be selected,such as stanless steel plate heat exchanger,shell and tube type,coiltype,and Acid and alkali resistant type
◆ Product Features
MAIPT's PlD&high-efficient Comps deliver +0.1'C control and eco-friendly, quiet operation.
| ITEM | UNIT | MPTD-180WS | MPTD-260WS | MPTD-340WS | MPTD-410WS | MPTD-470WS | MPTD-510WS | MPTD-580WS | MPTD-710WS | MPTD-790WS | MPTD-830WS | MPTD-930WS | |
| Cooling Capacity | kcal/h | 36636 | 54696 | 72928 | 86774 | 103114 | 108876 | 128398 | 156004 | 171398 | 184126 | 205454 | |
| (outet liquid temperature-30℃) | kW | 42.6 | 63.6 | 84.8 | 100.9 | 119.9 | 126.6 | 149.3 | 181.4 | 199.3 | 214.1 | 238.9 | |
| Cooling Capacity | kcal/h | 58306 | 87049 | 116065 | 138101 | 164106 | 173276 | 204345 | 248280 | 272780 | 293037 | 326980 | |
| (outet liquid temperature-20℃) | kW | 67.8 | 101.2 | 135.0 | 160.6 | 190.8 | 201.5 | 237.6 | 288.7 | 317.2 | 340.7 | 380.2 | |
| Cooling Capacity | kcal/h | 71015 | 106023 | 141364 | 168203 | 199876 | 211045 | 248887 | 302398 | 332238 | 356910 | 398252 | |
| (outlet liquid temperature-10℃) | kW | 82.6 | 123.3 | 164.4 | 195.6 | 232.4 | 245.4 | 289.4 | 351.6 | 386.3 | 415.0 | 463.1 | |
| Maximum Running Current | A | 121 | 171 | 220 | 268 | 310 | 336 | 377 | 453 | 498 | 534 | 620 | |
| Total Power Input | kW | 60.0 | 88.2 | 114.3 | 138.4 | 163.4 | 172.5 | 201.4 | 243.2 | 271.1 | 288.8 | 317.7 | |
| Refrigerant | R404A | ||||||||||||
| Steps Control | % | 0/33/66/100 | 0/25/50/75/100 | ||||||||||
| Control Type | Siemens PLC Automatic Control, Color LCD Touch Screen | ||||||||||||
| Power Supply Type | 3N,380V,50Hz | ||||||||||||
| Safety Protection Device | Overload、Inverse Phase、High/Low Pressure、Safety Valve、Water Flow、Oil Level、Exhaust Temperature、Antifreeze Protection, etc | ||||||||||||
| Compressor | Type | Semi-hermetic Screw | |||||||||||
Condenser | Type | Shell And Tube Type | |||||||||||
| Water Flow | m³/h | 43 | 64 | 86 | 102 | 121 | 128 | 151 | 183 | 201 | 216 | 241 | |
| Water Pressure Drop | kPa | 95 | 35 | 35 | 35 | 35 | 35 | 35 | 43 | 43 | 43 | 71 | |
| In/Out Pipe Size | DN | 80 | 100 | 100 | 125 | 125 | 125 | 150 | 150 | 200 | 200 | 150 | |
| Evaporator | Type | Dry Shell And Tube Type | |||||||||||
| Liquid Flow | m³/h | 34 | 51 | 69 | 82 | 97 | 102 | 121 | 147 | 161 | 173 | 193 | |
| Pressure Drop | kPa | 85 | 32 | 32 | 32 | 32 | 32 | 32 | 36 | 36 | 36 | 36 | |
| In/Out Pipe Size | DN | 80 | 100 | 100 | 125 | 125 | 125 | 150 | 150 | 200 | 200 | 150 | |
| L×W×H | cm | 267*78*154 | 292*81*169 | 297*91*184 | 328*91*189 | 330*99*195 | 330*99*201 | 356*108*210 | 358*113*225 | 376*118*230 | 379*127*238 | ||
| Net weight | kg | 1130 | 1460 | 1790 | 2080 | 2320 | 2490 | 2770 | 3310 | 3630 3800 | 4210 | ||
| Refrigerant Charge | kg | 28 | 42 | 56 | 67 | 79 | 84 | 99 | 120 | 132 141 | 158 | ||
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