Gardner Denver 200-355kw Screw Air Compressor
Two-stage Compression Technology with Higher Efficiencyand Saving More Energy
During the two-stage compression process, a low compression ratio is achieved at each stage, thus reducing the bearingload and extending service life of the components.
wo-stage compression lowers the compression ratio at each stage and reduces internal leakage
Inter-stage cooling enables near isothermal compression at the 2nd stage to save energy
Two-stage Compression Airend Module
The compression module uses robust high-performance rotor, which contributes tomore significant energy saving than single-stage compressors.High efficiency due to a low compression ratio
Significantly lower impact load on rotors at all stages and heat load oncomponents of the unit
Effectively extended service life of the airendIndividual compression process occurred in the 1st and 2nd stage rotor15% higher efficiency than single-stage compression at full load
Coolant Spraying Curtain
The unique inter-cooling design ensures fast cooling by spraying coolant mist tothe compressed air from the lst stage.
Coolant is ejected to form a curtain for unparalleled inter-stage cooling*Compressed air is uniformly cooled before entering the 2nd stage, whichgreatly reduces the energy required for compression at this stageLess components are required without an inter-cooler
Benefits of Variable Speed Drive (VsD)
VSD further enhances the air compressor efficiency and reliability. GD air compressor enables a wide-range regulationand can sleep, instead of running without load, when it runs at an ultra-low speed. VSD air compressor saves moreenergy, and also provides clean compressed air in a reliable manner.
35% Less Energy
than Traditional FixedSpeed Compressors
VSD compressors are closer to the targetpressure, while fixed speed onesgenerally require wider pressure bandcontrol range. 7% more energy will beconsumed for every 1 bar(14.5 psi)increase in the required pressure!
Precise & Reliable Drive System
Integrated gear drive design for high reliability and efficiency
The simple and reliable direct gear drive design withhigh precision and reliability, as one of the ideal powerdrive systems, is adopted to effectively optimizeperformance of the unit
Roller bearings are fitted at the drive end for uniform force exertion and high stability. Back to back taper roller bearings are fitted at the discharge end to maximally absorb axial thrust and radial load bymeans of linear contact, and also to offset radial and axial force
Oil storage tank is designed to eliminate dry friction and extend service life. Without it, dry friction for one hour a yearis expected to cause critical damage to the bearings
Robust Motor
Design for use in 46 C ambient temperature
Class F insulation and B temperature rise
High efficiency four-pole motor
International famous brand bearings
Standard PT100 over-temperature protection for front bearings
Standard RTD over-temperature protection for three-phase stator windings
New-generation Intelligent Controllers
High-resolution color display!
Flexible local and remote control optionsbased on Modbus communication protocol
Joint control and operation of up to 8 units
Efficient Inlet System
Large-margin inlet air filter is selectedAir filter with ultra-low pressure dropimproves efficiency of the unit
Less efforts and cost of maintenance is required
Unique Oil-air Separation System
Distinctive three-stage separator with double buffer
The separator minimizes exhaust oil content, and reduces coolant refills*The impact on oil content in compressed air due to excessive orinsufficient oil filled into the separator is effectively reduced
Cooling System Designed for 46°C Ambient Temperature
Modular cooler design improves stability of the systemPipe arrangement of the unit is streamlined for betterheat dissipation and higher maintenance efficiency
Venting from the Top
The design conforms to the principle ofthermodynamics
An air guide hood can be readily installedto timely dissipate hot air
Leak-free Sealing System
ORFS"0 ring""sealing
Materials with high corrosion resistance to oil, water, gasand other mixed media
Automatic elastic compensation function after the sealingsurface is worn
Acting as oil-free lubrication seal due to the superiorself-lubrication property
Reliable self-sealing.
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