BAUER's most compact mobile compressor: With compact dimensions and advanced technology. Durability, reliability, versatility in application and compact flexibility have made the JUNIOR II a global classic and genuine best seller with more than 100,000 units sold the world over. Dimensions on a very small scale and sophisticated technology make our most compact mobile breathing air compressor ideal for shipping, as a diving compressor, in respiratory applications, and as a compressor for paintball and sport shooting.

JUNIOR II compressor block

The high-pressure compressor block is the beating heart of the JUNIOR. Epitomising reliability and having proven its worth in practice for decades, more than 100,000 units have been sold the world over. Read more

P 21 filter system

When used in conjunction with original BAUER filter cartridges, the P 21 filter system with integrated oil and water separator and pressure retention check valve can be relied upon for breathing air treatment conforming to DIN EN 12021¹. A type-tested and sealed final pressure safety valve enables particularly high levels of operational safety to be achieved. 140 m³ of air can be treated. ¹ If the units are maintained and installed correctly as described in the operating instructions or user manual and if the concentration of CO2 in the intake air does not exceed the values specified in the applicable standard for breathing air.

Crash frame incl. handles

The corrosion-resistant crash frame provides additional protection for the unit and can accommodate additional accessories such as a compressor control or a larger filter system. The handles make moving the unit easy and convenient.

Filling device

The filling device comprises a flexible "UNIMAM" high-pressure filling hose and filling valve complete with final pressure gauge. The final pressure gauge makes it easy to read off the filling pressure. It is protected against damage by a durable rubber jacket.

Filling hose

High-quality UNIMAM high-pressure filling hoses made from food-safe and long-life hose material make for flexible and safe handling. Swivel hose connections enable the filling valve to be connected to the breathing air cylinder quickly, easily and safely.

Motor rocker

The integration of a motor rocker means that the tension of the V-belt no longer has to be adjusted.

P 31 filter system

When used in conjunction with original BAUER filter cartridges, the P 31 filter system with integrated oil and water separator and pressure retention check valve can be relied upon for breathing air treatment conforming to DIN EN 12021¹. A type-tested and sealed final pressure safety valve enables particularly high levels of operational safety to be achieved. 600 m³ of air can be treated. ¹ If the units are maintained and installed correctly as described in the operating instructions or user manual and if the concentration of CO2 in the intake air does not exceed the values specified in the applicable standard for breathing air.

P 41 Purification system

When used in conjunction with original BAUER filter cartridges, the P 41 filter system with additional oil and water separator and pressure retention check valve can be relied upon for breathing air treatment conforming to DIN EN 12021:2014¹. A type-tested and sealed final pressure safety valve enables particularly high levels of operational safety to be achieved. 1550 m³ of air can be treated. ¹ If the units are maintained and installed correctly as described in the user manual and subject to the BAUER AERO-GUARD being used if CO2 concentration in the intake air exceeds prescribed standard values.

B-TIMER filter cartridge monitoring

The operating hours and the current level of cartridge saturation are displayed on the unique B-TIMER mini-computer.

SECURUS is a direct asset to your safety!

SECURUS is an electronic filter cartridge saturation control which continuously monitors the ability of the final filter cartridge to dry breathing air in accordance with the standard EN 12021:2014.

Additional intermediate separator after the first stage

In the case of operation in locations where air humidity is high (tropical regions, for example), we recommend installing a separator downstream of the first compressor stage. This can extend the service life of the unit and reduce maintenance costs.

Compressor control (PROFI-LINE)

In the case of operation in locations where air humidity is high (tropical regions, for example), we recommend installing a separator downstream of the first compressor stage. This can extend the service life of the unit and reduce maintenance costs.

Automatic condensate drain incl. final pressure shutdown and control conforming to European CE standard

The automatic condensate drain B-DRAIN is controlled via the electrical control system. The condensate produced can be collected in a condensate tank for disposal in an environmentally-friendly way.

Switch-over device PN 300/200 bar

For easy and flexible switching from 200 to 300 bar and vice versa.

Additional filling device PN 200 or PN 300 bar

There is the option to supplement an existing filling valve with the addition of one or more filling valves with filling hoses of varying lengths.

Trolley

The trolley provides an easy and convenient mode of transport for mobile compressor units. Fitted with pneumatic tyres, the trolley maximises mobility.

Telescopic intake tube

The telescopic intake tube is highly recommended when operating compressor units in locations with increased concentrations of hazardous substances such as CO or CO2. It enables the intake range of the compressor to be moved to a suitable location.

Other voltages/frequencies

All electric motors are available with other voltages and frequencies on request.

Paint finish/Special paint finish

All frame parts of BAUER compressors are finished with a sophisticated powder coating. 

Scope of delivery, basic version

Complete compressor unit ready for operation.