L-Series Screw Compressors

Where the air is always on

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L-Series Screw Compressors

Rated Pressure: 0.8 – 1.3 MPa, 8 – 13 bar
Air Flow @ Outlet: 0.7 – 23 m³/min
Power: 7.5 – 132 kW, 10 – 175 hp

Screw Type Air Compressor

● Utilize a variable frequency drive to create a variable frequency speed control transmission system.

● Save energy and reduce production costs.

● Can lead to increased productivity and improved product quality.

Model No. / Drive Types Power (kW/HP) Rated pressure (bar) Air Flow @ Outlet(m³/min) Dimensions (mm) Weight (kg) Air Outlet Pipe Diameter
SLL-7.5V SLL-7.5F 7.5 / 10 8 1.1 870*600*800 130 G1/2
10 0.85
13 0.7
SLL-11V SLL-11F  11 / 15 8 1.6 1080*750*1020 220 G3/4
10 1.4
13 1.2
SLL-15V SLL-15F 15 / 20 8 2.4 1080*750*1020 240 G3/4
10 2.1
13 1.7
SLL-22V SLL-22F 22 / 30 8 3.6 1180*850*1210 340 G1
10 3.2
13 2.6
SLL-30V SLL-30F 30 / 40 8 5.0 1340*1000*1300 480 G1-1/2
10 3.25
13 3.1
SLL-37V SLL-37F 37 / 50 8 6.1 1340*1000*1300 500 G1-1/2
10 4.8
13 4.5
SLL-45V SLL-45F 45 / 60 8 7.5 1340*1000*1300 550 G1-1/2
10 6.2
13 4.9
SLL-55V SLL-55F 55 / 75 8 9.25 1630*1150*1400 950 G2
10 7.3
13 6.7
SLL-75V SLL-75F 75 / 100 8 12.0 1630*1150*1400 1100 G2
10 9.5
13 8.9
SLL-90V SLL-90F 90 / 120 8 16.0 1900*1300*1650 1400 G2
10 12.0
13 11.5
SLL-110V SLL-110F 110 / 150 8 20.0 2000*1350*1790 1700 G2 -1/2
10 15.0
13 14.5
SLL-132V SLL-132F 132 / 175 8 23.0 2000*1350*1790 1700 G2 -1/2

Note:

Model number remarks: “F” as fixed speed, “V” as VSD. Due to the potentially different rotation speeds of motors, the air flow rates of fixed speed represent the minimum in the range (i.e 30kW 8 bar 5.67m³/min), while VSD can reach the maximum at full loading.
Standard voltage in 380V (+/-10%), 50Hz +/-2% and available for customized voltage 220/380/440/460V/60Hz.

In cases of elevated altitudes, extreme temperatures, excessive humidity, heavy dust exposure, or any other challenging operational environments, we can offer tailored product designs to meet your specific needs. Customization is available to align with your unique requirements.

Intelligent Control System

The Control System provides real-time monitoring of exhaust temperature, exhaust pressure, operating frequency, current, power, and operating status. It also allows for optional integration with an Internet of Things module and external cloud-based intelligent management system. Through a mobile device, users can remotely control and monitor the unit, including remote start and stop functions and online monitoring.

Intelligent Control System

The fourth generation of high-efficiency permanent magnet motor

This motor boasts an F-class insulation rating and an IP54 protection rating, making it suitable for use in harsh environments. Its split design allows for easy maintenance and repair. The absence of a gearbox results in high transmission efficiency, as the motor and main rotor are directly connected via a coupling. An independent cooling fan ensures that the motor remains cool even when subjected to variable frequency drives. The winding is equipped with PTC/PT100 temperature protection switches to prevent demagnetization due to high temperatures. The motor has a wide speed range, high precision, and a broad air volume adjustment range. Its high-temperature magnetic material, UH, can withstand temperatures of up to 180°C without losing magnetism. Compared to ordinary motors, the permanent magnet motor has a 3%-5% higher efficiency that remains constant even at lower speeds.

The fourth generation of high-efficiency permanent magnet motor

The fourth generation trinity frequency converter

Features of this converter include variable frequency control for both the permanent magnet motor and cooling fan, as well as independent fan control. It also offers precise pressure control within 0.01MPa and temperature control at around 85℃ to ensure optimal lubrication without risking overheating. The system eliminates idle energy consumption by up to 45% and prevents excess pressure, which can increase energy consumption by 7% for every 0.1MPa increase in pressure. With a variable frequency range of 30% to 100%, it offers greater flexibility than typical systems. Additionally, it uses vector gas supply calculations to ensure that the air compressor’s output matches the user’s demand at all times.

The fourth generation trinity frequency converter

Looking for the Best Compressed Air Solution for your industry?

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  • Share your requirements for expert evaluation (multilingual support).
  • Get customized solution, including IP level, air end and parts, screen language, remote control, appearance, voltage and temperature adaptation, etc.
  • Production started after order confirmation (standard production time: 20-25 days).
  • Rigorous quality testing before shipping.
  • Lifelong technical support, original maintenance parts support, and up to 10-year warranty on the air end.