MARINER (420 bar)
Mobile 200–320 l/min unit for breathing air applications up to 420 bar
- 200 – 320 l/min
- 90 – 420 bar
- Three-phase or gasoline engine
Request product
- SKU
- MARINER/420
In stock
Quality & Innovation
Certified Breathing Air Quality
The BAUER MARINER (420 bar) delivers independently tested and accredited breathing air quality that not only meets but exceeds international standards such as EN 12021:2014, CGA/ANSI Grade E, and other relevant norms – ensuring maximum safety for every application.
Premium Aluminum Frame
The premium aluminum frame combines low weight with high structural strength, providing reliable protection, excellent transportability, and maximum mobility, even with frequently changing locations and demanding environmental conditions.
Benchmark in Design and Performance
For decades, the MARINER (420 bar) has set the benchmark for design, performance and durable technology, and stands worldwide for professional breathing air systems that prove their reliability, quality and long-term operational safety in continuous daily use.
Designed for 420 bar
Engineered for a 420 bar operating pressure, the MARINER (420 bar) uses high-quality, durable components to ensure maximum operational safety, long-term load capacity, and reliable performance under continuous high stress.
Premium Quality
BAUER breathing air compressors are manufactured to state-of-the-art production standards using precisely matched components. High-quality materials, precision manufacturing, and rigorous quality control ensure long service life, high reliability, and consistent performance under the harshest operating conditions.
Technical Data
MARINER compressor, 420 bar, 200 – 320 l/min, high-pressure compressor for compressing air and breathing air
| Model | Charging rate ¹ | Maximum operating pressure | Drive | Filter system | Net weight | Dimensions (L x W x H) | |
|---|---|---|---|---|---|---|---|
| l/min | bar | Motor | kW | approx. kg | cm | ||
| MARINER 200/420-E | 200 | 420 | Three-phase motor 400 V, 50 Hz ² | 6.6 | P 21 | 115 | 130 × 62 × 63 |
| MARINER 250/420-E | 250 | 420 | Three-phase motor 400 V, 50 Hz ² | 4.0 | P 21 | 115 | 130 × 60 × 63 |
| MARINER 320-B | 320 | 420 | Petrol engine | 6.6 | P 31 | 120 | 130 × 62 × 64 |
| MARINER 320-E | 320 | 420 | Three-phase motor, 400 V, 50 Hz ² | 5.5 | P 31 | 135 | 130 × 60 × 64 |
¹ Measured with cylinder filling from 0 to 200 bar, ±5%
² Option of different voltage/frequency available
-
Details & Features
The MARINER/420 delivers top performance in a compact format — up to 320 l/min and 420 bar pressure. Its rugged chassis, corrosion-resistant components, and durable protective frame make it the perfect choice for marine and mobile applications. Paired with the BAUER P 41 filter system, it guarantees safe, high-quality breathing air. Thanks to a wide range of options, the compressor can be individually configured — from dive clubs to fire services, from paintball fields to offshore yachts.
Compressor block
Our compressor blocks are based on decades of experience and development. An efficient air cooling system with large coolers and finned cylinders ensures optimal cooling. Robust industrial roller bearings, pressure lubrication, and fine oil filters minimize wear. Dynamically balanced drive units ensure smooth operation and long maintenance intervals.
P 41 filter system
The P 41 filter system with additional oil and water separator as well as pressure-retaining non-return valve ensures reliable breathing air in accordance with DIN EN 12021:2014¹ when using original BAUER filter cartridges. A type-tested, sealed final pressure safety valve ensures high operational safety. The processable air volume is 1,550 m³.¹ Applies with proper maintenance, installation according to the operating manual, and when using the BAUER B-AEROGUARD if the CO₂ concentration exceeds the standard limits.
Crash frame incl. carrying handles
The corrosion-resistant crash frame provides additional protection and space for accessories such as compressor control or larger filter system. The carrying handles ensure easy and comfortable transport.
Filling device
The filling device consists of a flexible "UNIMAM" high-pressure filling hose and a filling valve with a final pressure gauge. The gauge allows easy reading of the filling pressure and is reliably protected against damage by a robust rubber coating.
Filling hose
The high-quality UNIMAM high-pressure filling hoses are made of food-grade, durable material and provide maximum flexibility during handling. Swiveling hose connections allow for quick, easy, and safe connection of the filling valve to the breathing air cylinder.
Motor rocker with belt tensioner
Thanks to the integrated motor rocker with belt tensioner, no retightening of the V-belt is required anymore.
Options
B-SECURUS filter monitoring
The B-SECURUS system monitors the saturation of the filter cartridge(s) by measuring the moisture level in the molecular sieve and provides a timely indication when a cartridge replacement is required – either on the display or via the control unit. Once saturation is reached, the system automatically shuts down the unit. The B-SECURUS filter monitoring system can only be used in conjunction with the P 41, P 61, or P 81 filter systems, as well as the external BAUER filter systems.
First-stage separator
For operation in humid ambient air, such as in tropical regions or when handling moist gases, a separator is recommended after the first compression stage. It reliably discharges the increased amount of condensate and minimizes its entry into the compressor oil.
Compressor control (PROFI-LINE)
The electrical control with monitoring electronics shuts down the compressor at final pressure, records operating hours and oil pressure, and displays the current status. It also enables fully automatic operation.
Automatic condensate drain with auto shut-off at final pressure
The automatic condensate drain empties the intermediate and final separators automatically during operation and shutdown – for greater convenience and less effort. In addition, the compressor shuts down automatically at final pressure. For maximum safety, all electrically driven models are built according to DIN EN 60204 and feature a compact control system with control transformer – CE-compliant and operationally safe.
Trolley set
The trolley set enables easy and effortless transport of mobile compressor units. Equipped with pneumatic wheels, it ensures maximum mobility.
-
Downloads
-
Product Video
MARINER and CAPITANO – Mobile All-Round Compressors
Frequently Asked Questions
Why is BAUER the right partner for industrial compressor solutions?
-
End-to-end system expertise from a single source: BAUER covers the entire process chain, including compression, air and gas treatment, quality monitoring, and audit proof documentation from a single source.
-
Most comprehensive options and accessories portfolio: BAUER offers the broadest range of options and accessories in the industry, precisely tailored to each application without the need for custom engineered solutions.
-
Most extensive breathing air treatment portfolio: From separators, purification systems and regeneration dryers to refrigeration dryers, BAUER covers all purity requirements for breathing air applications.
-
Global market leadership and service expertise: In the high pressure segment, BAUER is the worldwide market standard across nearly all industries, with a 70 percent market share in breathing air supply, supported by a global service network.
What is the MARINER (420 bar) used for?
The MARINER (420 bar) is a mobile high-pressure breathing air compressor that delivers reliable breathing air supply for flexible use at different locations. It is built for demanding conditions where mobility and operational safety are essential.
What performance ranges does the MARINER (420 bar)cover?
The MARINER (420 bar) is designed for final pressures of up to 420 bar and can deliver up to 320 liters per minute. This makes it ideal for filling breathing air cylinders in mobile applications.
How is the MARINER (420 bar) powered?
The MARINER (420 bar) is available with a three-phase motor or petrol engine, and is built for reliable operation in each configuration.
How portable is the MARINER (420 bar)?
Thanks to its compact design and mobility, the MARINER (420 bar) is especially suited for use at multiple locations.
How maintenance-friendly is the MARINER (420 bar)?
The MARINER (420 bar) is engineered for low-maintenance operation. Its sturdy build and easily accessible components make maintenance quick and easy.
BAUER KOMPRESSOREN SUPPORTED Cave RESCUE IN THAILAND
In early July of this year in the northern Thailand city of Chiang Rai, twelve members of a youth football team and their coach were exploring the local caves when they found their retreat cut off after flooding in the caves from a sudden heavy rainfall.
see more