MARINER II-D
Mobile, diesel-powered 170–350 l/min unit for breathing air applications up to 330 bar
- 170 – 350 l/min
- 225 – 330 bar
- Diesel engine
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- MARINER-D
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Quality & Innovation
Certified Breathing Air Quality
The BAUER MARINER II-D 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.
High-Output Diesel Engine
The MARINER II-D is equipped with a robust, high-output diesel engine, the most powerful in its class, delivering maximum independence, high energy efficiency, reliability, and long service life for continuous mobile operation.
Robust Design for Extreme Applications
The MARINER II-D features a steel frame and is consistently designed for the harshest operating conditions. Its robust components ensure corrosion-resistance, reliability, and stable performance even in extreme environments, including marine applications.
Highest Delivery Rate in Its Class
With a delivery rate of up to 350 l/min, the MARINER II-D offers the highest filling capacity in its class, ensuring maximum availability, short operating times, and efficient workflows in professional use.
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 II-D compressor, 90–330 bar, 170–350 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 | Engine | kW | approx. kg | cm | ||
| MARINER II-D | 170 | 330 | Diesel engine | 5.0 | P 21 | 158 | 110 × 58 × 62.5 |
| MARINER II-D | 250 | 330 | Diesel engine | 7.9 | P 31 | 250 | 150 x 60 x 72.5 |
| MARINER II-D | 300 | 330 | Diesel engine | 7.9 | P 31 | 250 | 150 x 60 x 72.5 |
| MARINER II-D | 320 | 330 | Diesel engine | 10.0 | P 31 | 315 | 150 x 60 x 72.5 |
| MARINER II-D | 350 | 330 | Diesel engine | 10.0 | P 31 | 315 | 151 x 60 x 72.5 |
¹ Measured with cylinder filling from 0 to 200 bar, ±5%
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Details & Features
The MARINER II-D is a powerful mobile breathing air compressor with diesel drive, operating independently of the power grid. This series is ideal for professional use under the most demanding conditions — whether for diving, fire services, or offshore operations. The compressors feature a robust steel protective frame, convenient carrying options, and reliable filtration systems (P21 / P31 / P41) for safe, clean breathing air. Corrosion-resistant components and proven lubrication ensure long service life and trouble-free operation. Optional features such as B-SECURUS or automatic condensate drain with CE-compliant control provide added convenience and safety.
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 21 Purification system
The integrated P 21 Purification system with oil and water separator as well as pressure-retaining non-return valve ensures reliable breathing air in accordance with DIN EN 12021¹ when using original BAUER filter cartridges. A type-tested, sealed final pressure safety valve ensures maximum operational safety. The processable air volume is 140 m³.¹ Applies when properly maintained and installed, and if CO₂ limits in accordance with the standard are not exceeded.
P 31 Purification system
The P 31 Purification system with integrated oil and water separator as well as a pressure-retaining non-return valve ensures reliable breathing air purification in accordance with DIN EN 12021¹ when used in combination with original BAUER filter cartridges. A type-tested, sealed final pressure safety valve ensures an especially high level of operational safety. The processable air volume is 600 m³.¹ Applies when the system is properly maintained and installed in accordance with the operating manual, and provided that the CO₂ concentration in the intake air does not exceed the limits defined in the applicable breathing air standard.
Diesel engine
The standard Hatz diesel engine ensures reliable, low-maintenance performance with low operating costs.
Motor rocker with belt tensioner
Thanks to the integrated motor rocker with belt tensioner, no retightening of the V-belt is required anymore.
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.
Options
P 41 Purification system
The P 41 Purification 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.B-TIMER filter cartridge monitoring
The unique B-TIMER minicomputer displays the operating hours and the current filter cartridge saturation in real time. A prominent blinking signal indicates when a cartridge change is due – including the corresponding order number. This ensures the filter capacity can always be used optimally.
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 Purification systems, as well as the external BAUER Purification systems.
Changeover device PN 300/200 bar
The PN 300/200 bar changeover device allows filling of cylinders with different operating pressures.
Trolley set
The trolley set enables easy and effortless transport of mobile compressor units. Equipped with pneumatic wheels, it ensures maximum mobility.
Intake telescope
The intake telescope allows relocating the intake area of compressor units to a place with clean ambient air. It is especially recommended where the installation site has elevated concentrations of pollutants such as CO or CO₂.
Additional filling device PN 200 or PN 300 bar
An existing filling connection can optionally be expanded by one or more additional connections with filling hoses of variable length.
Compressor control
The electronic control with monitoring electronics automatically shuts down the compressor at final pressure, records operating hours and oil pressure, displays the current status, and shows the battery charge directly on the control box.
B-DRAIN automatic condensate drain
The B-DRAIN condensate drain automatically discharges the water-oil mixture from the intermediate and final separators. Solenoid valves control the discharge individually and reliably. The gentle, controlled condensate release reduces pressure losses, saves energy, and increases efficiency. Compared to conventional solutions, B-DRAIN operates significantly more quietly.
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Frequently Asked Questions
Why is BAUER the right partner for industrial compressor solutions?
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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.
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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.
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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.
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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 II-D used for?
The MARINER II-D is a diesel-powered high-pressure breathing air compressor designed for off-grid operation. It is built for demanding conditions where an independent and reliable breathing air supply is essential.
What performance ranges does the MARINER II-D cover?
The MARINER II-D is designed for final pressures of up to 330 bar and can deliver up to 140 liters per minute. This makes it ideally suited for professional field operations.
How is the MARINER II-D powered?
The MARINER II-D is equipped with a high-quality Hatz diesel engine and is designed for independent operation without the need for an external power supply.
How maintenance-friendly is the MARINER II-D?
The MARINER II-D is engineered for low-maintenance operation. Its sturdy build and easily accessible components make maintenance quick and easy.
Which conditions is the MARINER II-D built to handle?
The MARINER II-D is built to perform reliably in challenging environments, including outdoor and remote locations.
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