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TYPE 30 5T2NL - Bare Air Compressor Block

The 5T2NL is an oil-free or non-lube machine, mainly for use in hospitals. Oil can only pass piston rings if the pressure is lower on top of the piston than underneath the piston. This normally happens when the piston sucks air into the cylinder on the downstroke.

The non-lube machines do have two pistons, running together. In between the two pistons, are always positive compressed air pressure. This air prevents any oil to pass the bottom piston rings and it is impossible for oil to get into the compressed air, delivered by this compressor.

Airpower's selection of Type 30 Air Compressor Blocks are all made with quality material for wear and tear parts and aluminum parts.


Flywheel: 406mm X 2SPA

Motor needed: 5.5kW - 7.5kW  (7.5 hp - 10 hp.)

Displacement at 660 rpm with 5.5 kW motor 744 liter/min

Displacement at 930 rpm with 7.5 kW motor 1050 liter/min.

Free air delivery at 660 rpm 510 liter/min and 762 l/min at 930 rpm

Number of pistons: 2

Stages: 2

Low-pressure piston diameter: 127 mm and stroke 89mm

High-pressure piston diameter: 76.2 mm and stroke 89mm

Maximum pressure: 8.6 bar

Exploded View

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