Screw compressor range aimed at workshops and small businesses

Designed to replace the current GX2-7 range, boost productivity and lower operational costs, the G2-7 screw compressor range from Atlas Copco is aimed at small companies, workshops and operations with an infrequent air demand that are looking to expand their compressed air applications.

Typical application industries as diverse as woodworking, small-sized manufacturing, CNC operations, car wash bays, spray painting, clothing presses, automotive repair shops all rely on a source of compressed air as an essential utility to aid their activities. 

Power and efficiency

“That is why the all-new G2-7 belt-driven, fixed-speed compressor family has been designed from the outset to provide quiet, efficient, powerful, and reliable performance within its five-model range,” says the company. The 2.2, 3, 4, 5 and 7.5kW machines, each powered by an IE3 motor, are available at working pressures of 8 and 10 bar(e), with an output capacity range of 6.1 – 16.4 l/s (22.0 – 59.0 m3/hr).

“Rotary screw air compressors deliver more air per kW of power, compared to reciprocating compressors of the same size,” adds Atlas Copco. “That is why the performance of the G2-7 smaller rotary machine, compared to its piston equivalent with the same output, can make a significant contribution to energy savings and therefore lower cost of ownership.”

In addition to overall energy efficiency, the G2-7 compressors offer multiple benefits compared to other compressor technologies, it continues. These features include low noise output, lightweight and small footprint for point-of-use, plug and play installation. 

Reliable, continuous operation 

“As well as simplified maintenance procedures and zero loss of capacity, the new compressors also offer 100% reliable, continuous operation 24/7 at temperatures of up to 46 degrees C, without the need for frequent cool-down periods required for a piston compressor. Furthermore, an extremely low oil-carryover of less than 5 ppm into the delivered air protects tools and end-product quality.”

While keeping operational costs at a minimum, thanks to its IE3 premium-efficiency motor, the G2-7 compressor’s belt-driven, state-of-the-art, low-vibration screw element is aid to greatly reduce vibrations, resulting in near-silent operation. “Noise levels are minimised to as low as 61 dB(A), allowing installation close to the point of use with no additional sound insulation requirement or the need for separate compressor room siting.”

Monitoring and control is simplified with the compressor’s Elektronikon Base unit that provides intuitive control. Its icon-based display provides pressure settings, outlet temperature readings, running hours/hours working at load. The controller also features service warnings and visual alerts to help safeguard performance and reliability. 

Minimising carbon footprint 

The G2-7 range is said not only to reduce operating costs, but also minimise the users’ carbon footprint, contributing to a greener workplace environment.

Available either as floor-mounted or tank-mounted models with different sizes of air receiver available, the new G2-7 range can be tailored to customer-specific requirements with a range of options. These include food-grade oil, RSXD oil, a DD filter, aftercooler and a tropical thermostat. In addition, optional equipment can include an electronic water drain (EWD), a timer drain, and an anti-condensation kit. 

Full feature versions of the compressors are available with a fully integrated refrigerant dryer to ensure the supply of dry, quality air without taking up extra production space.