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TYPE 30 10T3NL - Bare Air Compressor Block


This is an oil-free bare solid cast iron compressor block (Pump). It is a very old, but reliable design for heavy oil-free hospital and industrial applications.

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


Flywheel: 495mm X 4SPB

Motor needed: 11kW - 15kW  (15 hp - 20 hp.)

Displacement at 700 rpm with 11 kW motor 1584 liter/min

Displacement at 930 rpm with 15 kW motor 2130 liter/min.

Free air delivery at 700 rpm 1140 liter/min and 1530 l/min at 930 rpm

Number of pistons: 3

Stages: 2

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

High-pressure piston diameter: 108 mm and stroke 89mm

Maximum pressure: 8.6 bar

What is an Air Compressor Block?

Also called a reciprocating compressor block or bare piston compressor block, a compressor block is the part doing the compression of the air. A piston moving in a reciprocating motion within the cylinder compresses the gas. It is driven by an electric motor or another form of rotation. The pistons are moving up and down and compress the air from atmospheric pressure up to full tank pressure. As the volume decreases the pressure increases. The gas is then pushed out of the cylinder to the next stage of compression or to the discharge connection.

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