JUNIOR II – The compact classic among mobile breathing air compressors

BAUER JUNIOR II breathing air compressor with electric motor
BAUER JUNIOR II breathing air compressor with electric motor
BAUER JUNIOR II breathing air compressor with petrol engine
BAUER JUNIOR II breathing air compressor with petrol engine
BAUER JUNIOR II-E high-pressure compressor, rear view
BAUER JUNIOR II-E high-pressure compressor, rear view
BAUER JUNIOR II-B high-pressure compressor, rear view
BAUER JUNIOR II-B high-pressure compressor, rear view

The world's best seller: With more than 100,000 units around the globe

BAUER's most compact mobile compressor: With compact dimensions and advanced technology

Extensive range of applications: For sport divers, shipping, respiratory applications, paintball, sport shooting and many more

Really easy to transport: Outstandingly light in weight and easy to handle

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.

In short, it is a must for anyone looking for absolutely clean and safe breathing air for use in mobile applications.

This quiet and compact unit can be carried easily by a single person and will fit in almost any car boot.

All the information you need at your fingertips!

JUNIOR II compressor block
JUNIOR II compressor block

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

Diagram of TRIPLEX filter system
Diagram of TRIPLEX filter system

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.

B-TIMER filter cartridge monitoring
B-TIMER filter cartridge monitoring

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

Filling device complete with final pressure gauge
Filling device complete with final pressure gauge

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.

High-quality UNIMAM high-pressure filling hose 200 or 300 bar
High-quality UNIMAM high-pressure filling hose 200 or 300 bar

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.

Mark indicating tested for safety
Mark indicating tested for safety

GS mark
The well-known GS mark which comes as standard with the JUNIOR II certifies that the compressor has been tested for safety and meets the exacting requirements of the German Equipment and Product Safety Act. Conformity and compliance with all DIN standards is assured.

Switch-over device PN 300/200 bar
Switch-over device PN 300/200 bar

Switch-over device PN 300/200 bar
For easy switching between filling pressures of 200 and 300 bar. Read more

JUNIOR II-E with automatic condensate drain
JUNIOR II-E with automatic condensate drain

Automatic condensate drain complete with automatic switch-off when the final pressure is reached
The automatic condensate drain removes water from the intermediate separator and the final separator automatically during both operation and shutdown. This makes things infinitely more convenient for the operator, as there is no longer any need for the time-consuming process of draining condensate manually at regular intervals. Another benefit is that the compressor is switched off automatically when the final pressure is reached.
At BAUER, safety always comes first: all of our models are equipped with an electric drive conforming to DIN EN 60204 for full CE conformity with a miniature control complete with control transformer.

Stainless steel base frame and carrying handle
Stainless steel base frame and carrying handle

Stainless steel base frame and carrying handle
The stainless steel design provides the best possible protection against corrosion for applications in tropical regions or at sea.

Additional filling device PN 200 or PN 300 bar
Additional filling device PN 200 or PN 300 bar

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
Trolley

Trolley
The trolley for the COMPACT-LINE units is designed for the simple and safe transportation of your compressor across any terrain. This is ensured by the large pneumatic tyres and the stable manner in which the compressor is secured.
For maximum flexibility, you can either leave the compressor on the trolley or lift it down to operate it. Turning a handle on the trolley allows you to secure your JUNIOR or OCEANUS in place and lift it back down again.
The length of the handle can also be adjusted to make handling the trolley particularly easy. The handle can also simply be detached to allow for convenient transportation of the trolley by car.

Other voltages/frequencies
Other voltages/frequencies

Other voltages/frequencies
All electric motors are available with other voltages and frequencies on request. A voltage range from 110 to 690 V at 50/60 Hz is covered.

Special paint finish
Special paint finish

Paint finish/Special paint finish
All frame parts of BAUER compressors are finished with a sophisticated powder coating. Read more

Scope of delivery, basic version
Scope of delivery, basic version

Scope of delivery, basic version
Complete compressor unit ready for operation. Read more

JUNIOR II compressor, 90 – 330 bar, 100 – 140 l/min, high-pressure compressor for compressing air and breathing air
Type
designation
Effective
free air delivery ¹
Drive Net
weight
Dimensions
L × W × H
  l/min Motor kW approx. kg cm
JUNIOR II-B 100 Robin/Subaru 4-stroke petrol engine 4 44 78 × 34 × 42
JUNIOR II-E 100 Three-phase motor, 400 V, 50 Hz ² 2.2 46 66 × 36 × 42
JUNIOR II-W 100 Alternating current motor 230 V, 50 Hz ² 2.2 46 66 × 39 × 42

¹ Measured with cylinder filling from 0 to 200 bar, ±5%
² Option of different voltage/frequency available

Videos for the JUNIOR and OCEANUS COMPACT-LINE compressors

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