
TYPE 30 253
Flywheel: 406mm X 3SPA
Motor needed: 5.5kW – 7.5 kW
Displacement at 610 rpm with 7.5 kW motor: 690 liter/min.
Free air delivery at 610 rpm: 518 liter/min
Premium replacement pump heads and blocks for the Western Cape’s industrial sector. Stocking ABAC, Chinook, and Type 30 variants.
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.
Airpower’s selection of Type 30 Air Compressor Blocks are all made with solid cast iron for the wear and tear parts and aluminum parts. Our Type 30 range is reliable and recommended for heavy-duty industrial applications

Flywheel: 406mm X 3SPA
Motor needed: 5.5kW – 7.5 kW
Displacement at 610 rpm with 7.5 kW motor: 690 liter/min.
Free air delivery at 610 rpm: 518 liter/min

Flywheel: 349mm X 1SPA
Motor needed: 2.2kW (3 hp.)
Displacement at 965 rpm with 2.2 kW motor: 307 liter/min.
Free air delivery at 965 rpm: 233 liter/min

Flywheel: 349mm X 1SPA
Motor needed: 4kW – 5.5 kW
Displacement at 965 rpm 4 kW motor: 546 liter/min.
Free air delivery at 965 rpm: 443 liter/min

Flywheel: 457mm X 2SPA
Motor needed: 7.5 kW (10hp)
Displacement at 950 rpm 7.5 kW motor: 1070 liter/min.
Free air delivery at 950 rpm: 896 liter/min

Flywheel: 540mm X 2SPC
Motor needed: 15 kW-22kW
Displacement at 720 rpm 15 kW motor: 2238 liter/min.
Free air delivery at 720 rpm: 1860 liter/min

Flywheel: 457mm X 2SPB
Motor needed: 11 kW (15hp)
Displacement at 1000 rpm 11 kW motor: 1620 liter/min.
Free air delivery at 1000 rpm: 1284 liter/min
Flywheel: 406mm X 2SPA
Motor needed: 5.5kW – 7.5kW
Displacement at 660 rpm with 5.5 kW motor: 744 liter/min
Free air delivery at 660 rpm 510 liter/min

Flywheel: 495mm X 4SPB
Motor needed: 11kW – 15kW
Displacement at 700 rpm with 11 kW motor: 1584 liter/min
Free air delivery at 700 rpm: 1140 liter/min
In many cases, yes. If the electric motor and receiver tank are still in good condition, replacing only the air compressor block can restore your compressor’s performance while significantly reducing replacement costs. A professional assessment will confirm whether the existing motor is compatible with the new compressor block.
Before purchasing an air compressor block, you should consider your required airflow, maximum working pressure, duty cycle, motor power, and intended application. Choosing the wrong specification can reduce efficiency and shorten the life of your compressor. Airpower’s technical team can help ensure you select the right compressor block for your operational requirements.
Installing a larger air compressor block may increase airflow, but only if the existing motor, drive system, receiver, and other components are correctly matched. Simply fitting a larger block without assessing the complete system can lead to poor performance or mechanical failure. It’s always best to seek professional advice before upgrading your compressor.
Regular servicing is the best way to maximise the life of an air compressor block. This includes maintaining the correct oil level, replacing air filters, checking belt tension where applicable, monitoring operating temperatures, and addressing unusual noises or pressure loss early. A preventative maintenance schedule helps reduce unexpected breakdowns and keeps your compressor operating efficiently.
“Fast response time for our factory breakdown. The technician knew exactly how to fix our screw compressor and got us up and running the same day.”
“Great selection of spares. I was able to find exactly what I needed for our old ABAC unit without waiting weeks for imports. Highly recommended.”
“Fast response time for our factory breakdown. The technician knew exactly how to fix our screw compressor and got us up and running the same day.”
We are fully equipped to handle major overhauls, pressure testing, and component sales directly from our Bellville headquarters.
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