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50 HP Low Pressure Water Lubricated Oil Free Rotary Screw Air Compressor
50 HP Low Pressure Water Lubricated Oil Free Rotary Screw Air Compressor
50 HP Low Pressure Water Lubricated Oil Free Rotary Screw Air Compressor
50 HP Low Pressure Water Lubricated Oil Free Rotary Screw Air Compressor
50 HP Low Pressure Water Lubricated Oil Free Rotary Screw Air Compressor
50 HP Low Pressure Water Lubricated Oil Free Rotary Screw Air Compressor
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50 HP Low Pressure Water Lubricated Oil Free Rotary Screw Air Compressor

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10-year Warranty with Free Parts and Service Guidance

8 - 10 Week Lead Time

Why choose a Master Water Lubricated Oil Free Rotary Screw Air Compressor?

  • Utilizes Japanese high-efficiency air end technology and a variable frequency drive which features a soft start, for optimal energy use, leading to cost savings and reduced carbon footprint. 
  • Permanent magnet heavy-duty IP 55 motor.
  • Innovative oil-free screw design, low-temperature compression, and low RPM operation for extended lifespan and reduced maintenance. 
  • Offers high efficiency and low operational costs through water lubrication single-stage compression, and minimizes maintenance expenses. 
  • Fully accessible sound-attenuated corrosion-proof enclosure. Constructed with stainless steel 304 and special alloy materials, processed by CNC machining for rust-free, reliable operation. 
  • Pure copper radiator with stronger heat dissipation than aluminum counterparts, 5-10 years longer service life than other suppliers. 
  • Advanced design and water lubrication provide enhanced compression, ensuring a consistent reliable air supply. 
  • 304 Stainless steel liquid-cooled heat exchanger, minimum pressure valve, intake valve, etc. 
  • Water-lubricated, single-stage compression guarantees oil-free operation, ideal for critical air quality applications. 
  • User-friendly Full-colour High-end LED touchscreen controller, low maintenance and extended durability to ensure a seamless ownership experience (pre-programmed plug & play system). 
  • Direct drive results in low maintenance and high efficiency by eliminating any power transmission losses due to belts and pulleys.

 

    Model 

    MST-45DF-4 

    Power 

    37kW / 50 HP 

    Pressure 

    4 Bar / 58 PSI 

    Air Flow 

    286 CFM

    8.1 m3/min 

    Noise Level 

    65 dBA 

    Outlet size 

    RP 2 

    Weight 

    1950 kilograms 

    Dimensions (L*W*H) 

    93*49*74 Inches 

    Cooling System 

    Air Cooled 

     

    Model  

    MST-45DF-4  

    Power  

    37kW / 50 HP  

    Pressure  

    4 Bar / 58 PSI  

    Air Flow  

    8.1 m3/min  

    Noise Level  

    65 dBA  

    Outlet size  

    RP 2  

    Weight  

    1950 kilograms  

    Dimensions (L*W*H)  

    93*49*74 Inches  

    Cooling System  

    Air Cooled 

     

    Model  

    MST-45DS-4  

    Power  

    37kW / 50 HP  

    Pressure  

    4 Bar / 58 PSI  

    Air Flow  

    8.1 m3/min  

    Noise Level  

    65 dBA  

    Outlet size  

    RP 2  

    Weight  

    1150 kilograms  

    Dimensions (L*W*H)  

    75*49*54 Inches  

    Cooling System  

    Water Cooled 


    Working principle

    Working flow Chart 

    Air Cooled flow chart 

     

    Water Cooled flow chart 

     

    Water Lubricated Oil-Free Compressors VS. Dry Oil-Free Compressors

    Type  
    Water Lubricated Oil-Free  
    Dry Oil-Free  
    Operating Temperature  

    Isothermal compression at 40c  

    High-temperature operation  

    Exhaust Temperature  

    at 45°C+  

    at 1200°C  

    Rotating Speed  

    2950RPM, Low speed and high airflow  

    18000RPM, High speed   

    Lubrication method  

    Impurities in the air and circulating water are filtered through a water filtration system  

    Both gearboxes are lubricated with oil.   

    (high temperature and high speed)  

    Noise  

    ≥ 10 dB less than dry compressors.  
    (Low motor speed means less noise)  
      

    Higher dB.  
    (High motor speed means more noise)  

    Maintenance Cost  

    Relatively simple structure, low maintenance cost  

    The structure is relatively complex, and the maintenance cost is high

    Water Lubricated Oil-Free Compressors offer more than 15% energy savings compared to Dry Oil-Free Compressors!

    OPTIONS/ADD-ONS AVAILABLE 

    For more details, call or text:+1 (647) 363-5872

    master-aire.myshopify.com