W31 Mariner Diesel High-Pressure Air Compressor

The W31 Mariner Diesel is a robust high-pressure compressor engineered for mobility and autonomy. Driven by a diesel engine, it is the ideal choice for field operations where electric power is unavailable, such as remote shipyards, fish farms, and military outposts. With a compressed air capacity ranging from 100 to 140 liters per minute (text) / 110 to 145 l/min (table), and a maximum working pressure of up to 350 bar, it delivers reliable performance using a three-stage, splash-lubricated system. Its portable design and integrated purification system ensure that high-quality breathing air is always available when needed.

Common Performance Data

Working Pressure: 225/310 bar (3260/4500 psi). Note: Higher pressure models up to 350 bar are available.

Compressor Design: 3 Stages.

Motor Power: 6.5 hp (Diesel Drive).

Dimensions (W x L x H): 44 cm x 90 cm x 51 cm.

Model Variant: 110 l/min

Free Air Delivery (FAD): 110 l/min (6.6 m³/h / 3.8 cfm).

Speed: 1100 rpm.

Weight: 63 kg.

Model Variant: 145 l/min

Free Air Delivery (FAD): 145 l/min (8.7 m³/h / 5.1 cfm).

Speed: 1350 rpm.

Weight: 64 kg.

Standard Features & Configuration

Purification: P21 Purifier and Refillable Cartridge; Breathing Air Quality Complies with EN 12021:2014.

Cooling & Separation: Oil/Water Separators after 2nd and 3rd Stage; Stainless steel Interstage Cooling Pipes and Aftercooler.

Valves: Priority (Min. Pressure) Valve, Non-Return (Check) Valve, Safety Valve after each stage.

Operation: Manual Start/Stop; Manual Condensate Drain.

Structure: Electrostatic Painted Portable Chassis with Shock Mounts; Oil Level Glass.

Accessories: Complete Filling Hoses (Yoke, Sleeve Valve, Manometer, DIN Adapter).

Optional Equipment

Automatic Start / Stop.

Automatic Drain.

Control Panel (On/Off, Hourmeter, Emergency Stop).

Dual Pressure System (225-310 Bar / 3260-4500 Psi).

Stainless Chassis.

Replaceable (Disposable) Cartridge.

Extra Fill Hose.

Key Features

Diesel-Powered Independence: Equipped with a powerful 6.5 hp diesel engine, ensuring operational capability in remote areas without access to electricity.

Rugged Portability: Built on an electrostatic painted portable chassis with shock mounts, designed to withstand the rigors of field deployment in military and civil defense applications.

Breathing Air Safety: Delivers high-quality compressed air that complies with EN 12021:2014 standards, making it safe for scuba diving and firefighting breathing apparatus.

High-Pressure Performance: Features a three-stage reciprocating design capable of filling cylinders to pressures of 350 bar.

Corrosion Resistant: Fitted with stainless steel interstage cooling pipes and aftercoolers to prevent corrosion and ensure long service life in harsh environments.

Complete Filling Package: Includes complete filling hoses (Yoke, Sleeve Valve, Manometer, DIN Adapter) for immediate use upon delivery.