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This semi-hermetic screw refrigeration compressor is engineered for stable and efficient performance in industrial cooling applications. With durable construction, high energy efficiency, and consistent output, it is widely used in cold storage facilities, food processing plants, commercial refrigeration systems, and industrial cooling projects.
Its optimized screw design ensures smooth operation, reduced vibration, and long service life, making it a reliable choice for demanding refrigeration environments.
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YLG40Z-140~YLG60G-165
Blait
Blait’s Industrial Semi-Hermetic Screw Refrigeration Compressor (Model Range: YLG40Z-140~YLG60G-165) is engineered for reliable, continuous cooling in demanding industrial environments. Leveraging advanced screw rotor technology, this compressor delivers pulsation-free cooling capacity, making it ideal for cold storage warehouses, food processing plants, and industrial cooling projects. Its semi-hermetic structure ensures superior sealing (reducing oil leakage by 90% vs. open-type compressors) and long service life, while its flexible design adapts to diverse power supplies and refrigerant types.
Electrical Connection
Energy Control , Unloading & Start
Oil Circulation
1.Oil filter:
Maximum allowable working pressure: 31bar, maximum operating temperature: +120℃
Filtration accuracy: 25μm is equal to 500 mesh
2.Oil flow switch:
Selects 10L/min
3.Oil circuit pressure drop:
During normal operation, the pressure drop of the oil cooler and pipeline on the oil side shall not exceed 0.5 bar.
4.Oil temperature control:
During normal operation, the oil temperature is controlled based on discharge temperature of 80 ℃, it’s generally set between 50-60 ℃.
Kit for oil injection
Compressor protection accessories
Compressor equip:
•motor temperature protection
•discharge temp. protection
•phase sequence protection
•oil flow protection
When required:
•oil temp. protection ; oil pressure protection
•high pressure protection ; low pressure protection
•oil level protection ; motor overload protection
Precision-machined twin screws minimize internal leakage, boosting volumetric efficiency by 15% compared to traditional piston compressors. The rotor profile reduces airflow resistance, enabling consistent cooling output even under variable loads (e.g., daily temperature shifts in cold storage). This design also lowers exhaust temperature, extending lubricant life.
The compressor supports a range of industrial refrigerants, including R22, R404A, R507A, and low-GWP (Global Warming Potential) options. Its adaptive system adjusts to refrigerant properties, making it suitable for both medium-temperature (HVAC) and low-temperature (freezing) applications—from supermarket refrigeration to industrial freezing lines.
The screw mechanism’s balanced rotation reduces vibration to <0.1 mm displacement, protecting adjacent equipment and lowering noise levels to ≤70 dB(A). This makes it perfect for noise-sensitive environments like pharmaceutical labs and commercial refrigeration (supermarkets).
Blait’s semi-hermetic screw compressors stand out for industrial-grade reliability and customized solutions:
Advanced Oil Management: An internal oil separation system with ≥99.9% efficiency reduces oil carryover, minimizing maintenance costs and extending component life.
Global Adaptability: Designed for 380-480V/3-phase/50-60Hz power supplies, supporting international industrial projects across regions.
Rapid After-Sales Service: A global network of service centers provides fast spare parts delivery and on-site maintenance, ensuring minimal downtime for critical cooling systems.
