Description
Senator CM18 Variable Speed Screw Compressor 18.5kW 10Bar 101cfm – 560L Full Featured
High-Capacity Compressed Air For Demanding Applications
The Senator CM18 Variable Speed Screw Compressor is an 18.5 kW (25 hp) rotary screw air compressor designed for workshops, manufacturing facilities and industrial environments with higher compressed air requirements.
Delivering 1.45–2.85 m³/min (51–101 cfm), the CM18 provides increased airflow and a larger 560 litre air receiver, making it a significant step up in capacity within the Senator CM Series.
A high-efficiency permanent magnet motor, variable speed control and direct-drive technology allow the compressor to respond to changing air demand while helping reduce unnecessary energy consumption during periods of lower usage.
Senator CM18 Compressor Features
18.5 kW Permanent Magnet Motor
The CM18 is powered by a high-efficiency 18.5 kW (25 hp) permanent magnet motor designed to provide dependable compressed air for demanding commercial and industrial applications.
Combined with variable speed control, the motor can increase or decrease compressor output according to actual compressed air requirements.
Variable Speed Performance
Compressed air consumption can vary significantly as machinery, pneumatic tools and production processes move in and out of operation throughout the working day.
The CM18’s variable speed system automatically adjusts compressor output to respond to these changes in demand.
Rather than continuously operating at maximum capacity, the compressor can reduce output when less air is required and increase production during periods of higher consumption, helping provide a more efficient compressed air supply.
Direct-Drive Technology
The CM18 uses direct-drive technology to transfer power from the motor directly to the compressor air end.
Eliminating the conventional belt-drive arrangement helps reduce mechanical complexity, transmission losses and belt-related maintenance requirements while providing efficient power transfer.
Selectable 8 or 10 Bar Pressure
The Senator CM18 can operate at either 8 bar (116 psi) or 10 bar (145 psi).
These are not separate CM18 models. Operating pressure is electronically configured through the compressor controller and variable speed drive without requiring pulley changes or other mechanical modifications.
Integrated 4-in-1 Compressed Air Station
The CM18 combines the major components required for a compressed air system into one integrated package.
This configuration simplifies installation, reduces floorspace requirements and provides businesses with a practical alternative to installing multiple compressed air components separately.
560 Litre Air Receiver
The CM18 features a larger 560 litre air receiver, providing additional compressed air storage to support its higher airflow capacity and more demanding applications.
Quiet Industrial Performance
Despite delivering up to 101 cfm, the CM18 operates at 71 dB(A) at one metre, helping reduce compressor noise within workshops and industrial working environments.
Senator CM18 Compressor Specifications
Product Code: SE CM18-10
Compressor Type: Variable speed rotary screw
Motor Power: 18.5 kW (25 hp)
Free Air Delivery: 1.45–2.85 m³/min (51–101 cfm)
Maximum Air Delivery: 2.85 m³/min (101 cfm)
Working Pressure: 8 or 10 bar (116 or 145 psi)
Motor Type: Permanent magnet variable speed
Drive: Direct drive
Tank Volume: 560 litres
Noise Level: 71 dB(A) @ 1 metre
Dimensions (W × D × H): 1,860 × 770 × 1,780 mm
Weight: 615 kg
Up To 101 cfm Compressed Air Capacity
With a maximum free air delivery of 101 cfm (2.85 m³/min), the CM18 is designed for businesses requiring a substantial and dependable supply of compressed air.
Its variable output range of 51–101 cfm allows compressed air production to respond to actual consumption, providing additional capacity when demand increases while reducing output during quieter operating periods.
The combination of higher airflow and a 560 litre receiver makes the CM18 particularly suited to facilities operating multiple pneumatic tools, machinery or production processes.
Is The Senator CM18 Right For Your Business?
The Senator CM18 is well suited to larger automotive and mechanical workshops, fabrication businesses, manufacturing facilities and industrial operations with higher or fluctuating compressed air requirements.
It represents a substantial step up from the CM15, increasing maximum output from 87 cfm to 101 cfm and increasing receiver capacity from 450 litres to 560 litres.
For applications regularly operating close to the CM18’s maximum capacity, or businesses planning additional compressed air equipment, the larger Senator CM22 provides up to 130 cfm while retaining the 560 litre receiver configuration.
Find The Right Senator Screw Compressor
Correct compressor sizing is important for reliable performance, energy efficiency and long-term operation. Required airflow, operating pressure, peak demand, duty cycle and anticipated future compressed air requirements should all be considered when selecting a rotary screw compressor.
Talk to our team about your equipment and compressed air requirements and we can help determine whether the Senator CM18 Variable Speed Screw Compressor is the right solution for your application.










