Description
Senator CM11 Variable Speed Screw Compressor 11kW 10Bar 63cfm – 450L Full Featured
Efficient Compressed Air For Workshops And Industrial Applications
The Senator CM11 Variable Speed Screw Compressor is an 11 kW (15 hp) rotary screw air compressor designed for businesses requiring increased compressed air capacity combined with the efficiency advantages of variable speed technology.
Delivering 0.92–1.78 m³/min (32–63 cfm), the CM11 provides a significant step up in compressed air output from the smaller CM8, making it well suited to busy workshops, manufacturing facilities and industrial environments operating multiple pneumatic tools or equipment.
A high-efficiency permanent magnet motor, variable speed control and direct-drive technology work together to deliver responsive compressed air while helping minimise unnecessary energy consumption.
Senator CM11 Compressor Features
11 kW Permanent Magnet Motor
The CM11 features a high-efficiency 11 kW (15 hp) permanent magnet motor engineered for reliable industrial compressed air production.
Combined with variable speed technology, the motor can respond to changes in air demand rather than continuously operating at maximum output.
Variable Speed Performance
Compressed air demand can change considerably throughout a working day as tools, machinery and production equipment are switched on and off.
The CM11’s variable speed drive automatically adjusts compressor output according to demand, providing more air when consumption increases and reducing output when less compressed air is required.
This makes the CM11 particularly suitable for businesses with fluctuating compressed air requirements.
Direct-Drive Technology
The CM11 uses direct-drive technology, with the motor directly driving the compressor air end.
Eliminating the conventional belt-drive arrangement reduces mechanical complexity, transmission losses and belt-related maintenance while providing efficient transfer of power between the motor and compressor.
Selectable 8 or 10 Bar Pressure
The Senator CM11 can be configured to operate at either 8 bar (116 psi) or 10 bar (145 psi).
The pressure is electronically selected through the compressor controller and variable speed drive. There is no requirement to change pulleys or make mechanical modifications when changing between the two operating pressures.
Integrated 4-in-1 Compressed Air Station
The CM11 brings the major components required for a compressed air system together into one integrated package.
This compact configuration simplifies installation and reduces the floorspace required compared with installing individual compressed air components separately.
450 Litre Air Receiver
An integrated 450 litre air receiver provides compressed air storage within the CM11 package, helping create a practical, space-efficient solution for workshops and industrial facilities.
Quiet Industrial Performance
Despite its increased compressed air capacity, the CM11 operates at 71 dB(A) at one metre, helping reduce operating noise within the workplace.
Senator CM11 Compressor Specifications
Product Code: SE CM11-8
Compressor Type: Variable speed rotary screw
Motor Power: 11 kW (15 hp)
Free Air Delivery: 0.92–1.78 m³/min (32–63 cfm)
Maximum Air Delivery: 1.78 m³/min (63 cfm)
Working Pressure: 8 or 10 bar (116 or 145 psi)
Motor Type: Permanent magnet variable speed
Drive: Direct drive
Tank Volume: 450 litres
Noise Level: 71 dB(A) @ 1 metre
Dimensions (W × D × H): 1,670 × 710 × 1,750 mm
Weight: 458 kg
63 cfm Compressed Air Capacity
With a maximum free air delivery of 63 cfm (1.78 m³/min), the CM11 provides additional capacity for businesses whose compressed air requirements exceed the capabilities of smaller workshop compressors.
The combination of increased airflow and variable speed control makes the CM11 suitable for applications where several pneumatic tools or pieces of equipment may operate throughout the working day.
Rather than continually running at its maximum 63 cfm output, the compressor can reduce output when demand falls, helping match compressed air production more closely to actual consumption.
Is The Senator CM11 Right For Your Business?
The Senator CM11 is well suited to automotive workshops, fabrication businesses, manufacturing facilities and other commercial or industrial environments requiring a reliable supply of compressed air with capacity for changing demand.
Its 32–63 cfm variable output range provides flexibility for businesses that may not require maximum compressor capacity throughout the entire working day.
For applications regularly operating near the CM11’s maximum 63 cfm capacity, or where additional equipment and future growth are anticipated, the larger Senator CM15 provides up to 87 cfm of compressed air capacity.
Find The Right Senator Screw Compressor
Selecting the correct rotary screw compressor requires consideration of your equipment’s airflow requirements, working pressure, peak demand, operating hours and anticipated future usage.
Talk to our team about your compressed air requirements and we can help determine whether the Senator CM11 Variable Speed Screw Compressor provides the right capacity for your application.









