Blackmer screw compressors are virtually maintenance free due to the non-contacting high speed screw design. Cast iron bodies, steel shafts and bronze bushings provide many years of maintenance free service.  The only regular required service is an annual oil change.

Mistral screw compressors may be run up to 2,000 RPM and provide flowrates ranging from 415-720 Nm3/h (244-423 cfm) and provide a high volume of compressed air, up to 2.5 bar (36 PSI), to keep the dry bulk materials in suspension.  Keeping dry materials in suspension is critical when off-loading and flowing through piping from truck to plant piping and finally reaching storage silos.  Mistral compressors were developed with easy installation in mind.  Compressors can be installed using any of the mounting lugs on either side or bottom of the compressor and can be fitted between tractor chassis rails.  Units can also easily be mounted to base units for stationary applications. 

Any number of drive methods may be used to power the Mistral compressors.  Most common are PTO shaft drives, hydraulic motor, diesel engine or electric motor depending upon installation location and application.  Complete package units (intercooler/enclosure) are also available.

Blackmer provides a full line of accessories to complete the Mistral installation:  Intake air filters, relief/check valves, mufflers/silencers, torque limiters and reversers.

For dry-bulk applications that require reliable operation, easy installation and years of maintenance free service, you can count on blackmer screw compressors.