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Understanding Compressor kW, HP, Tank Size and Pressure

Compressor specifications are usually quoted in kW or HP, litres and bar. Each describes a different thing, and comparing machines on the wrong one leads to poor buying decisions.

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kW and HP — motor power

Both describe the motor's power rating; HP is the imperial equivalent of kW. Force Air's piston range includes 2.2 kW, 5.5 kW and 7.5 kW units, while the FINI ADVANCED range is quoted in HP from 3 HP to 10 HP.

Litres — receiver tank capacity

Tank capacity is storage, not output. A larger tank rides out short peaks in demand and reduces motor starts, but it does not increase how much air the pump can make.

Bar — working pressure

Bar describes pressure. Match it to what your equipment requires; a 200-litre / 10-bar configuration, for example, is available in the Force Air petrol and diesel range.

Compare like with like

When comparing two machines, look at power, tank capacity and pressure together, then at duty cycle. Contact Force Air for availability and specifications on any model.

Need help choosing the right compressor?

Tell Force Air what you need to power, your required application and any known compressor specifications. Our team can assist with the appropriate solution.

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