China best Air Cooled Refrigeration Unit with 4 Frascold Screw Compressors air compressor for car

Product Description

120HP Refrigeration unit with 4 Frascold screw compressors 

Zhexue brand MFRLG series products are applicable to the large size -30ºC~-50ºC low temperature refrigeration system, as the large size low temperature cold rooms, ice making, and blast freezing etc.,

1.Reliable system: famous brand compressor, PLC controller, high efficient oil separating system ,
2.German bitzer  low temperature screw compressor, with the features of high efficiency, long service life, tiny vibration and low noise
3.this series products have a complete set of world famous components, protection devices for compressor wrong direction, over heat, over load, over discharging temperature, low oil level, over high/low pressure of oil flow etc.
4.the unit is matched with economizer, which can effectively increase the capacity for low temperature operation.

Model Description:
M BZ LG F 2-S 100 / J Y
M: MEOJILE products
BZ: compressor brad   BZ: Bitzer
                                     HZ: Hanbell
                                      FS: FUSHENG
                                      RF: RefComp
                                      FR: Frascold
LG: Compressor type   LG: screw compressor
                                      BF:piston compressor
                                      WX: scroll compressor
F: condenser type      F: air cooled/ Evaporative condenser
                                   W: water cooled
2: compressor qty
S:  S: 2 stage compressor  /: single compressor
100: HP
J :  room temperature range  H: (+5~+20ºC)
                                               L: (-30~-10ºC)
                                               J: (-50~-30ºC)
Main Components :

Compressor, condenser , pressure controller, pressure oil gauge, pressure sensor,filter vat filter core, liquid angle valve , accumulator, suction check valve, oil separator , oil safety valve, oil pipe ball valve, oil cooler, oil cooler valves, filter, oil dry filter, filter core, solenoid valve, economizer, sight glass, expansion valve,touch screen, LP sensor , PLC controller, CHINAMFG HMI.


Refrigeration unit with 4 Frascold screw compressors 
 Unit model MFRLGF4-      120(L)JY MFRLGF4-             160(L)JY MFRLGF4-            200(L)JY MFRLGF4-             240(L)JY MFRLGF4-           280(L)JY
Refrigerant R507(R404A)
Power supply 380V/3P/50HZ
Compressor Model FVR-L-30-120Y FVR-L-40-140Y FVR-L-50-160Y FVR-L-60-200Y FVR-L-70-230Y
Qty 4 4 4 4 4
Evaporating Temperature -50ºC~-10ºC
Evap. Temp -25ºC Cooling capacity(KW) 212.4 253.2 287.2 383.6 440.8
-25ºC Power input(KW) 116 134 150.4 200 226.4
-42ºC Cooling capacity(KW) 100.4 123.2 140 184.8 211.2
-42ºC Power input(KW) 100.8 113.2 122 166.8 183.6
 Liquid pipe(mm) Φ42 Φ42 DN50 DN50 DN50
 Suction pipe(mm) DN100 DN100 DN100 2*DN100 2*DN100
  Oil separator outlet(mm) DN65 DN80 DN80 DN80 DN80
Receiver inlet(mm) DN50 DN50 DN65 DN65 DN65
 Overall size L(mm) 4600 4600 4600 4800 4800
W(mm) 1950 1950 1950 1950 1950
H(mm) 1700 1700 1700 1700 1700
cooling capacity and power are set based on condensing temperature of 35ºC,used for evaporation condenser.


Refrigeration unit with 4 Frascold screw compressors 
 Unit model MFRLGF4-
Refrigerant R507(R404A)
Power supply 380V/3P/50HZ
Compressor Model FVR-L-80-270Y FVR-L-90-300Y FVR-L-100-350Y FVR-L-110-380Y FVR-L-125-430Y FVR-L-160-540Y
Qty 4 4 4 4 4 4
Evaporating Temperature -50ºC~-10ºC
Evap. Temp -25ºC Cooling capacity(KW) 507.6 569.2 650.4 688.8 813.2 960.4
-25ºC Power input(KW) 256 293.6 324.8 346.4 405.6 490.4
-42ºC Cooling capacity(KW) 250 275.6 314.4 335.6 389.2 464.4
-42ºC Power input(KW) 212.8 237.6 265.2 286.8 333.2 421.6
 Liquid pipe(mm) DN50 DN65 DN65 DN65 DN65 DN65
 Suction pipe(mm) 2*DN100 2*DN150 2*DN150 2*DN150 2*DN150 2*DN150
  Oil separator outlet(mm) DN80 DN100 DN100 DN100 DN100 DN100
Receiver inlet(mm) DN65 DN80 DN80 DN80 DN80 DN80
 Overall size L(mm) 4800 4800 4800 4800 5800 5800
W(mm) 1950 1950 1950 1950 2100 2100
H(mm) 1700 1700 1700 1700 2200 2200
cooling capacity and power are set based on condensing temperature of 35ºC,used for evaporation condenser.


Shipping Cost:

Estimated freight per unit.

To be negotiated
After-sales Service: Oversea Aftersales Is Available
Warranty: 12 Months
Principle: Screw Compressor


air compressor

How are air compressors utilized in pharmaceutical manufacturing?

Air compressors play a crucial role in pharmaceutical manufacturing, where they are utilized for various critical applications. The pharmaceutical industry requires a reliable source of clean and compressed air to ensure the safety, efficiency, and quality of its processes. Here’s an overview of how air compressors are utilized in pharmaceutical manufacturing:

1. Manufacturing Processes:

Air compressors are used in numerous manufacturing processes within the pharmaceutical industry. Compressed air is employed for tasks such as mixing and blending of ingredients, granulation, tablet compression, coating, and encapsulation of pharmaceutical products. The controlled delivery of compressed air facilitates precise and consistent manufacturing processes, ensuring the production of high-quality pharmaceuticals.

2. Instrumentation and Control Systems:

Pharmaceutical manufacturing facilities rely on compressed air for powering instrumentation and control systems. Compressed air is used to operate pneumatic valves, actuators, and control devices that regulate the flow of fluids, control temperature and pressure, and automate various processes. The clean and dry nature of compressed air makes it ideal for maintaining the integrity and accuracy of these critical control mechanisms.

3. Packaging and Filling:

Air compressors are employed in pharmaceutical packaging and filling processes. Compressed air is used to power machinery and equipment for bottle cleaning, labeling, capping, and sealing of pharmaceutical products. Compressed air provides the necessary force and precision for efficient and reliable packaging, ensuring product safety and compliance.

4. Cleanroom Environments:

Pharmaceutical manufacturing often takes place in controlled cleanroom environments to prevent contamination and maintain product quality. Air compressors are used to supply clean and filtered compressed air to these cleanrooms, ensuring a controlled and sterile environment for the production of pharmaceuticals. Compressed air is also utilized in cleanroom air showers and air curtains for personnel and material decontamination.

5. Laboratory Applications:

In pharmaceutical laboratories, air compressors are utilized for various applications. Compressed air is used in laboratory instruments, such as gas chromatographs, mass spectrometers, and other analytical equipment. It is also employed in clean air cabinets, fume hoods, and laminar flow benches, providing a controlled and clean environment for testing, analysis, and research.

6. HVAC Systems:

Air compressors are involved in heating, ventilation, and air conditioning (HVAC) systems in pharmaceutical manufacturing facilities. Compressed air powers the operation of HVAC controls, dampers, actuators, and air handling units, ensuring proper air circulation, temperature control, and environmental conditions in various manufacturing areas.

By utilizing air compressors in pharmaceutical manufacturing, the industry can maintain strict quality standards, enhance operational efficiency, and ensure the safety and efficacy of pharmaceutical products.

air compressor

Are there differences between single-stage and two-stage air compressors?

Yes, there are differences between single-stage and two-stage air compressors. Here’s an in-depth explanation of their distinctions:

Compression Stages:

The primary difference between single-stage and two-stage air compressors lies in the number of compression stages they have. A single-stage compressor has only one compression stage, while a two-stage compressor has two sequential compression stages.

Compression Process:

In a single-stage compressor, the entire compression process occurs in a single cylinder. The air is drawn into the cylinder, compressed in a single stroke, and then discharged. On the other hand, a two-stage compressor utilizes two cylinders or chambers. In the first stage, air is compressed to an intermediate pressure in the first cylinder. Then, the partially compressed air is sent to the second cylinder where it undergoes further compression to reach the desired final pressure.

Pressure Output:

The number of compression stages directly affects the pressure output of the air compressor. Single-stage compressors typically provide lower maximum pressure levels compared to two-stage compressors. Single-stage compressors are suitable for applications that require moderate to low air pressure, while two-stage compressors are capable of delivering higher pressures, making them suitable for demanding applications that require greater air pressure.


Two-stage compressors generally offer higher efficiency compared to single-stage compressors. The two-stage compression process allows for better heat dissipation between stages, reducing the chances of overheating and improving overall efficiency. Additionally, the two-stage design allows the compressor to achieve higher compression ratios while minimizing the work done by each stage, resulting in improved energy efficiency.


Intercooling is a feature specific to two-stage compressors. Intercoolers are heat exchangers placed between the first and second compression stages. They cool down the partially compressed air before it enters the second stage, reducing the temperature and improving compression efficiency. The intercooling process helps to minimize heat buildup and reduces the potential for moisture condensation within the compressor system.


The choice between a single-stage and two-stage compressor depends on the intended application. Single-stage compressors are commonly used for light-duty applications such as powering pneumatic tools, small-scale workshops, and DIY projects. Two-stage compressors are more suitable for heavy-duty applications that require higher pressures, such as industrial manufacturing, automotive service, and large-scale construction.

It is important to consider the specific requirements of the application, including required pressure levels, duty cycle, and anticipated air demand, when selecting between a single-stage and two-stage air compressor.

In summary, the main differences between single-stage and two-stage air compressors lie in the number of compression stages, pressure output, efficiency, intercooling capability, and application suitability.

air compressor

What is the role of air compressor tanks?

Air compressor tanks, also known as receiver tanks or air receivers, play a crucial role in the operation of air compressor systems. They serve several important functions:

1. Storage and Pressure Regulation: The primary role of an air compressor tank is to store compressed air. As the compressor pumps air into the tank, it accumulates and pressurizes the air. The tank acts as a reservoir, allowing the compressor to operate intermittently while providing a steady supply of compressed air during periods of high demand. It helps regulate and stabilize the pressure in the system, reducing pressure fluctuations and ensuring a consistent supply of air.

2. Condensation and Moisture Separation: Compressed air contains moisture, which can condense as the air cools down inside the tank. Air compressor tanks are equipped with moisture separators or drain valves to collect and remove this condensed moisture. The tank provides a space for the moisture to settle, allowing it to be drained out periodically. This helps prevent moisture-related issues such as corrosion, contamination, and damage to downstream equipment.

3. Heat Dissipation: During compression, air temperature increases. The air compressor tank provides a larger surface area for the compressed air to cool down and dissipate heat. This helps prevent overheating of the compressor and ensures efficient operation.

4. Pressure Surge Mitigation: Air compressor tanks act as buffers to absorb pressure surges or pulsations that may occur during compressor operation. These surges can be caused by variations in demand, sudden changes in airflow, or the cyclic nature of reciprocating compressors. The tank absorbs these pressure fluctuations, reducing stress on the compressor and other components, and providing a more stable and consistent supply of compressed air.

5. Energy Efficiency: Air compressor tanks contribute to energy efficiency by reducing the need for the compressor to run continuously. The compressor can fill the tank during periods of low demand and then shut off when the desired pressure is reached. This allows the compressor to operate in shorter cycles, reducing energy consumption and minimizing wear and tear on the compressor motor.

6. Emergency Air Supply: In the event of a power outage or compressor failure, the stored compressed air in the tank can serve as an emergency air supply. This can provide temporary air for critical operations, allowing time for maintenance or repairs to be carried out without disrupting the overall workflow.

Overall, air compressor tanks provide storage, pressure regulation, moisture separation, heat dissipation, pressure surge mitigation, energy efficiency, and emergency backup capabilities. They are vital components that enhance the performance, reliability, and longevity of air compressor systems in various industrial, commercial, and personal applications.

China best Air Cooled Refrigeration Unit with 4 Frascold Screw Compressors   air compressor for carChina best Air Cooled Refrigeration Unit with 4 Frascold Screw Compressors   air compressor for car
editor by CX 2023-10-03