JUNIOR II, the Mobile Unit for Sport Divers and Expeditions, 100 l/min

Breathing Air Compressor JUNIOR II


The most compact, highly mobile unit of our diving compressor range.
Due to its toughness and reliability the JUNIOR with more than 30.000 sold units has become a global classic.

New! Now with optional automatic condensate drain and final pressure cutout – for convenience and time savings. Also available: a trolley with ergonomic handle for the easy transportation of the system, even over rough terrain!

The JUNIOR II's small size and refined compressor technology appeal especially to ambitious sports divers, who want a safe and reliable source of pure air, even in remote dive locations. The light weight and compact unit is portable by a single person and fits in every boot.

This compact BAUER diving unit has been manufactured using top quality components, upholding BAUER's core characteristics of reliability and safety.

The even more compact design and a variety of smart improvements make the JUNIOR II an even better value for money for committed sports divers.

The new JUNIOR II is a product based on more than 60 years of experience and strict BAUER Quality Management according to DIN EN ISO 9001.

Technical Data
Model Drive FAD RPM Filling
Drive Filter
approx. cm
max. 330 bar 1) l/min 3) min-1 min 4) kW HP TRIPLEX L W H approx. kg
JUNIOR II – B 4-stroke petrol 2) 100 2300 2,0 4,0 5,5 P21 78 34 42 44
JUNIOR II – E three-phase 100 2300 2,0 2,2 3,0 P21 66 36 42 46
JUNIOR II – W single-phase 100 2300 2,0 2,2 3,0 P21 66 39 42 46

Our TRIPLEX filter cartridge is a safe source of pure breathing air according to DIN EN 12021* (formerly DIN EN 3188).

TRIPLEX filter cartridge: P21 filter with modifications (condensate outlet, modified filter bottom, shorter housing and standard safety valve).

Condensate drain: manual drain operated by two screw knobs on the filter housing and one on the separator after the second stage. These drains have been placed at a height that leaves enough space for a condensate container underneath.

All Compressor Versions: L-shaped frame with special base plate for the compressor block and motor allowing fast and simple belt tensioning, V-belt drive (SPZ belt), Plastic fan shroud with integrated holders for the telescopic intake tube, Steel carrying handle fixed to the base plate allows easy transport by two people (rails on both sides of the unit), Rubber anti-vibration feet, Integrated fill adapter brackets for two hoses with DIN and ISO connections.

1) available with switch over device 330 / 225 bar or 225 bar/330 bar alternatively
2) standard unit with integrated telescopic intake tube and Subaru four-stroke engine
3) cylinder filling from 0 to 200 bar
4) filling rate for 1 litre cylinder capacity from 0 to 200 bar

* if unit is properly maintained and installation of units is done according to operation manual and using the BAUER AERO-GUARD if the CO₂ concentration in the intake air exceeds the predetermined standard values.




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