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Brand Name : Shanghai Rotorcomp
Model Number : LGFD screw compressor
Certification : ISO.TUV,CE,GS
Place of Origin : Germany
MOQ : Min.:1set
Price : Negotiable
Payment Terms : Western Union, T/T, L/C, D/P, D/A
Supply Ability : 3,000 sets/per month
Delivery Time : 15-20 working days
Packaging Details : Exported Wooden Package
Warranty : 5 Years
Air End : Germany Rotorcomp
Advanced Design : Design in Germany
Motor : IP55 93.8% super high efficient motor
cooling system : Increased 30% cooling performance
Contractor : France made
Safety Valve : Japan made
Air filter : German MANN
Oil filter : German MANN
Oil separator : German MANN
1. World-leading Made in Germany Rotorcomp screw air end 
 2. 5 years warranty
 3. Extraordinary cooling system design
 4. Intelligent control system
 5. higher efficient energy-saving motor in IP55 IE3 CE&MEPS, SF1.2
 6. Unique driving guard system
 7. ISO,TUV,GA,SGS certificates
Advantages of our new EVO-technology
 New ROLLING PROFILE- ultimate efficiency with
 reduced noise
 Long life cycle due to increased bearing dimensions
 and wear-free ROLLING PROFILE
 Wide operating pressure range from 5 to 15 barg
 High quality manufacturing and assembling 
 Made in Germany
 Quality assurance ?bench test of every air end
 before leaving our factory
 Easy application selection with our new
 ROTORCOMP SIZING AIR software
 Highest flexibility for your package design
 Suitable for all types of drive driving motors
 Drive options: Belt drive, direct drive, internal gear drive
 Base and face-flange mounting
Ultimate efficiency and reduced noise through
 High volumetric output due to
 • Reduced internal leakage
 • Thermally optimized oil injection system
 • Improved suction port efficiency giving reduced
 internal losses
 Low power consumption due to
 • Optimized torque characteristics and reduced
 internal friction
 • Improved outlet port with lower pressure losses
 Reduced noise and low vibration due to
 • Smooth rolling of the rotors with new
 ROLLING PROFILE®
 • Optimized outlet port



The motor drives the main rotor through the coupling, the speed increasing gear or the belt. Since the two rotors mesh with each other, the main rotor directly drives the auxiliary rotor to rotate together. Under the relative negative pressure, the air is sucked in.
Under the action of the tooth peak and the tooth groove, the gas is transported and compressed, and when the rotor meshing surface is turned into communication with the exhaust port of the casing, the compressed gas begins to be discharged.
 The working process of the worm compressor: the motor transmits the power to the worm shaft by a coupling or a belt, and the worm drives the star gear to move relatively in the worm groove, the volume of the closed element changes, the gas, the conveying compression, when the design is reached The pressure value is discharged into the oil separator by a symmetrical triangular exhaust port on the left and right sides of the main body casing.
 
 
 And the Oil circuit of our LGFD rotary screw compressor is the amount of oil in the units is determined in such a way as to extend the oil change intervals (depending on ambient conditions).An oil level sensor is integrated as standard and is read by the controller. All the units in this series have a horizontal oil separation vessel in which the oil is separated from the compressed air highly efficiently at low speeds.
75KW air cooling compressor parameters
| ITEM | UNIT | MODEL | ||||
| LGFD-75 | ||||||
| Free air delivery | m3/min | 13.0 | 11.50 | 9.80 | 8.80 | |
| Max. working pressure | MPa | 0.8 | 1.0 | 1.3 | 1.5 | |
| Compressor type | Oil inject screw compressor | |||||
| Cooling type | Air cooling | |||||
| Driven type | Belt driven | |||||
| Inlet status | Temperature | ℃ | ≤55 | |||
| Pressure | MPa | Atmospheric pressure | ||||
| Relative humidity | ≤90% | |||||
| Noise Level | dB(A) | ≤76 | ||||
| Residual oil content | ppm | ≤1 | ||||
| Drive rotor speed | rpm | 5100 | 4500 | 3950 | 3600 | |
| Compressed air outlet temperature | ℃ | Ambient temperature+10 | ||||
| Cooling air flow | m3/hr | 11200 | ||||
| Control mode | Intelligent controller | |||||
| Safety valve set pressure | MPa | 0.88 | 1.10 | 1.43 | 1.60 | |
| Lubricating oil volume | L | 50 | ||||
| Lubricating oil brand | ROTORCOMP | |||||
| Compressed air outlet connection | G2 | |||||
| Dimension | L | mm | 1750 | |||
| W | mm | 1200 | ||||
| H | mm | 1500 | ||||
| Net Weight | kg | 1540 | ||||
| Motor | Model | Y2250M2-2 | ||||
| Speed | rpm | 2970 | ||||
| Rated Power | KW | 75 | ||||
| Service factor | 1.2 | |||||
| Protection type | IP55 | |||||
| Insulation class | F | |||||
| Startup mode | ʏ-Δ starting | |||||
| Voltage | V | 380(Special on request) | ||||
| Frequency | Hz | 50(Special on request) | ||||
| Rated current | A | 139 | ||||
| Weight of motor | kg | 515 | ||||
| Note: | 
| 1. The above parameters and color are designed according to customer needs, the parameters are for reference only, the final parameters of the drawings shall prevail; | 
| 2. According to user requirements and needs, to join way: air/water cooling, oil content, weight, appearance size according to the need to design, to the final order and the technical agreement shall prevail; | 
|  			 3. Frequency converters (optional). 4. 1 years warranty, 5 years warranty for air end  |  		



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