The SF & SF+ range of oil-free scroll air compressors unite Atlas Copco’s vast experience and knowledge in a class-leading package. The SF+ range boasts the high-end Elektronikon® controller. Reliable and compact, the range answer your demands through innovative technologies and supreme energy efficiency without compromising on quality. Setting the standard for air purity through ISO 8573-1 CLASS 0 certification, available in Air-cooled version, Pack and Full feature offering pressure capability upto10 bar(e) and improved energy efficiency thanks to the IE3 motor & efficient scroll elements.
Operating Principle
- Air compression is achieved by the interaction of a fixed and an orbiting scroll. Air at inlet pressure enters the compression chamber at the exterior side of the scroll element. Once air is drawn in, the orbiting scroll seals off the inlet port.
- As the scroll continues to orbit, the air is progressively compressed into an increasingly smaller ‘pocket’.
- A continuous flow of compressed air leaves the scroll element through a discharge port in the centre of the fixed scroll.
- This process is continuously repeated, resulting in the delivery of pulse-free compressed air.
Scroll compressor element
The compression principle incorporated in the SF+8-22 is the scroll system. Opposing helical elements orbit in relation to each other, progressively compressing atmospheric air up to 10 bar pressure. There is no metal to metal contact whatsoever – hence no need for lubrication. A minimum of moving components ensures inherent reliability, minimum maintenance and guarantees continuous operation.
Drive system
All SF+ models are V-belt driven, using belts with XPZ profile. Belt tensioning is easy as adjusting bolts are easily accessible via the front door.
Variable flow technology (VFT)
All SF+ 8-22 multi-scroll compressors are equipped with the unique VFT control system, which provides maximum flexibility of air delivery. The VFT system, included in the Elektronikon® controller, automatically starts and stops the scroll elements to exactly match the demands of your compressed air system. A control algorithm ensures that the system pressure is kept within a very narrow pressure band which optimizes the compressor’s efficiency and guarantees a very stable system pressure. The Elektronikon® also gives an instant read out of all operational data and continuously scans and monitors the operation of the SF.
Integrated refrigeration dryer (optional)
SF+ 8-22 full feature variants have an integrated refrigeration dryer. The integration of the dryer results in a compact compressed air installation, avoiding a lot of pipework and connections.
Silent Canopy
The unit is completely enclosed in a Silent canopy which limits the noise levels as low as 63 dB (A), allowing the unit to be installed closer to point of use.