Used Revised Air Compressor CMC CWA11-800 40 bar General Features of
the Used Air Compressor CMC CWA11-800 40 bar The Used Air Compressor
CMC CWA11-800 40 bar delivers high performance as an oil-free,
three-stage unit, ideal for industrial environments that require
high-quality compressed air. CMC manufactured this model in 2010 for
air compression systems operating at up to 40 bar of working pressure.
Since the unit uses dry-running cylinders, it eliminates the need for
internal lubrication. Therefore, operators can use it in critical
applications where they must avoid any air contamination. Moreover,
its robust design ensures long-term durability and operational
consistency. Technical Operating Specifications The Used Air
Compressor CMC CWA11-800 40 bar operates with three cylinders across
two compression stages. It draws air at atmospheric pressure and
functions in ambient temperatures ranging from +1 to +35 °C.
Consequently, the unit suits various environmental conditions. The
system delivers an intake flow rate of 800 cubic meters per hour and
reaches a maximum pressure of 42 bar. In addition, a 132 kW (180 HP)
three-phase electric motor powers the compressor at 710 revolutions
per minute, running on 400 Volts and 50 Hz. As a result, the
compressor provides high efficiency and reliability, even under
demanding workloads. Cooling System and Thermal Management To maintain
optimal temperatures, the Used Air Compressor CMC uses a water-based
cooling system for both the cylinders and compressed air.
Specifically, copper tube and brass plate heat exchangers dissipate
heat in both the intermediate and final compression phases.
Furthermore, a gear-driven oil pump circulates lubricant through a
dedicated heat exchanger, which enhances cooling performance.
Additionally, a preheating resistor stabilizes thermal conditions
during start-up. Therefore, the system reduces thermal stress and
extends component life. Overall, this combination of cooling solutions
ensures optimal efficiency throughout the filtration cycle. Mechanical
Equipment and Functional Components CMC designed the Used Air
Compressor CMC with a base frame supported by four anti-vibration
feet. As a result, operators can install the unit directly on the
floor without additional foundation work. The W-type compressor block
features dry cylinders and pistons with PTFE-loaded sealing rings. In
contrast to lubricated systems, this configuration prevents oil
contamination. Furthermore, stainless steel suction and delivery
valves include automatic unloader mechanisms that support load/unload
functionality. In terms of transmission, the motor and compressor
connect via trapezoidal belts, which simplify maintenance. The intake
side also includes a silenced filter, while a protective cage improves
operator safety. Safety Devices, Monitoring, and Physical Layout The
Used Air Compressor CMC integrates comprehensive safety and monitoring
systems. For example, pressure relief valves protect each compression
stage. In addition, solenoid valves control discharge and startup
operations for the first stage. A non-return valve maintains
directional airflow, while condensate separators include automatic
drainage systems. On the control panel, operators can monitor three
pressure gauges (one per stage and one for oil pressure). Notably, an
emergency stop button improves operational safety. In terms of
physical layout, the unit measures 3200 mm in length, 1900 mm in
depth, and 2100 mm in height. With a total weight of 8,500 kg, the
machine provides mechanical stability. Ultimately, this configuration
allows seamless integration into existing industrial setups.
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