Piston compressor MC series

stationarywith air dryerwith soundproof housing

Overview
The MC series is a range of oil-free main air compressors developed specifically for the rail sector. Based on over 40 years’ expertise in oil-free piston compressors, the MC series provides a compact, low-vibration solution for main air supply on rail vehicles. Units are built to withstand extreme conditions and can be customised to vehicle-specific installation requirements, including dryer and welded frame options.

Advantages

• Durable construction and simplified maintenance
• Low life-cycle costs
• Robust housing providing protection against dust and stone chips
• Reduced noise levels thanks to tailored sound insulation
• Reliable start-up at very low temperatures
• Developed and manufactured in Germany

Special features

• Operating temperature range: -40°C to +55°C
• Multiple installation positions possible
• Enclosed protective housing with customised acoustic insulation
• Frequency-inverter-compatible IE3 / IE1 motors

Customised compressed air generation system
MC series main air compressors are suitable for a wide variety of vehicle types and can be configured to meet specific installation constraints. Dryer units and welded frames are adapted individually to the vehicle type and installation situation.

Motors and drive
The compressor is driven by a continuous-duty motor designed for rail applications and optimised for operation with a frequency converter (supports IE3 / IE1 motors and frequency conversion).

Vibration damping
The MC series uses robust wire-rope vibration dampers to protect both compressor and vehicle from severe vibrations and ensure trouble-free operation over the service life. Rubber-element dampers are available as an alternative.

Oil-free operation — environmental and operational benefits
Oil-free compressors eliminate the need for oil handling and disposal, reducing operating costs and environmental impact. Benefits include:

• No oil level checks or oil changes
• No costs for oil, filters or disposal of waste oil
• No oil vapours that could impair sensitive equipment

Standards and approvals
The compressor and associated components have been tested to the following standards:

• Dust-resistant: Motor IP rating IP65
• Shock-resistant: DIN EN 61373:2011-04
• Fire and smoke resistance: DIN EN 45545-2
• Temperature tests: IEC 60068-2
• Electromagnetic compatibility: DIN EN 50121-3-2:2017-11

Technical data (examples)

• MC-700 (50 Hz): Air flow at 5 bar 757 L/min; Frequency 50 Hz; Voltage 400 V; Current 16.2 A; Motor input P1 7.5 kW; Protection class IP65; Noise level 64 PN dB(A); Weight 200 kg; Dimensions L x W x H 1000 x 650 x 506 mm
• MC-1200 (60 Hz): Air flow at 5 bar 1440 L/min; Frequency 60 Hz; Voltage 400 V; Current 35.3 A; Motor input P1 20 kW; Protection class IP65; Noise level 69 PN dB(A); Weight 285 kg; Dimensions 1120 x 651 x 505 mm
• MC-1200 (50 Hz): Air flow at 5 bar 1220 L/min; Frequency 50 Hz; Voltage 400 V; Current 30 A; Motor input P1 15.8 kW; Protection class IP65; Noise level 69 PN dB(A); Weight 285 kg; Dimensions 1120 x 651 x 505 mm
• MC-900 (60 Hz): Air flow at 5 bar 1229 L/min; Frequency 60 Hz; Voltage 400 V; Current 18.9 A; Motor input P1 11.6 kW; Protection class IP65; Noise level 74 PN dB(A); Weight 200 kg; Dimensions 998 x 652 x 507 mm
• MC-900 (50 Hz): Air flow at 5 bar 1041 L/min; Frequency 50 Hz; Voltage 400 V; Current 18.3 A; Motor input P1 9.5 kW; Protection class IP65; Noise level 74 PN dB(A); Weight 200 kg; Dimensions 998 x 652 x 507 mm

Technical specifications

• Series: MC
• Operating temperature: -40 °C to +55 °C
• Mounting positions: flexible, multiple positions possible
• Housing: enclosed protective housing with customised acoustic insulation
• Motors: IE3 / IE1, frequency-converter compatible, continuous-duty suitable
• Motor protection rating: IP65
• Standards: DIN EN 61373, DIN EN 45545-2, IEC 60068-2, DIN EN 50121-3-2
• Options: dryer units, welded frames, alternative vibration dampers (rubber elements)