Alkin W31 Mariner Compressor 4500 PSI/310 BAR; Vertical or Horizontal, 115 or 230 VAC

Description

Premium High-Pressure Air. EN12021 Certified. Built to Last.

The Alkin W31 Mariner is a premium, high-pressure air compressor engineered for reliability, performance, and long-term durability in demanding applications. With a compact vertical footprint that saves valuable floor space, a low-RPM three-stage reciprocating system that runs cooler and quieter, and clean breathable air output that meets EN12021 standards — the W31 is the serious fill solution for airgun shooters, scuba, paintball, and professional use who demand the best.

Overview

At the heart of the W31 Mariner is a three-stage, 1050 RPM reciprocating compression system — purpose-engineered to run at low RPM for reduced heat, quieter operation, and significantly longer service intervals than high-RPM alternatives. Capable of producing up to 5,000 PSI (345 bar) at 3.7 CFM, the W31 fills tanks quickly and efficiently while the integrated P21 filtration system and multi-stage moisture and oil separators ensure consistent, clean air purity throughout every fill. Stainless steel intercoolers and aftercoolers handle the thermal demands of continuous operation, making this a compressor built for serious long-term use.

Key Features

• Three-stage low-RPM (1050 RPM) reciprocating compression system
• 3.7 CFM fill rate for fast, efficient tank fills
• Maximum output: 5,000 PSI (345 bar)
• Air quality meets EN12021 Grade E and D standards — clean, breathable air
• Integrated P21 purifier with refillable purifier element
• 2nd and 3rd stage water condensate and oil separators
• Stainless steel intercoolers and aftercooler for superior thermal management
• Priority valve (pressure maintaining valve)
• Check valve and safety valve at each stage
• Automatic shut off with pressure switch
• Thermal overload protection for electric motor
• Oil level glass for easy monitoring
• Hour meter included
• Control panel with On/Off buttons
• Electrostatically painted portable chassis
• Filling hose with yokes, filling valves, pressure gauges, and DIN adapters included
• Compact vertical footprint for space-efficient installation

Performance Advantage

• Low 1050 RPM operation runs cooler and quieter than high-RPM competitors — extending service life and reducing maintenance intervals
• 3.7 CFM fill rate delivers fast, efficient fills for high-capacity tanks and frequent use
• EN12021 certified clean air output ensures safe, pure air delivery to your airgun or breathing apparatus
• Stainless steel intercoolers and aftercoolers handle continuous operation in demanding environments without thermal degradation
• P21 purification system with multi-stage moisture and oil separation ensures consistently clean, dry air output
• Automatic shut off and thermal overload protection provide hands-free safety during unattended fills

PLEASE NOTE! There are a few options beyond what is listed. We will contact you to discuss your exact needs!

Standard Features

• P21 Purifier with Refillable Purifier Element
• 2nd and 3rd Stage Water Condensate & Oil Seperator
• Intercoolers (Stainless Steel)
• Aftercooler (Stainless Steel)
• Priority Valve (Pressure Maintaining Valve)
• Check Valve
• Safety Valve at Each Stage
• Oil Level Glass
• Electrostatically Painted Portable Chassis
• Manual Start / Stop
• Manual Condensate Drain
• Power Cable
• Thermal Overload Protection for Electric Motor
• Control Panel: On / Off Buttons & Hourmeter
• 1* Filling Hose (Yokes, Filling Valves, Pressure Gauges, DIN Adapters)
• Air Quality complies with EN 12021

Optional Features

• Automatic Start / Stop
• Automatic Condensate Drain
• Pressure Switch
• Dual Pressure System 225-345 Bar / 3260-5000 Psi
• Stainless Chassis
• Extra Filling Hoses
• Disposable Filter Cartridge
• Gas Engine Drive

Sectors

• Scuba Diving
• Paintball / Airsoft
• Fire Brigades
• Military Applications
• Naval Applications
• Civil Defense Applications
• Maritime Applications
• Industrial Applications
• Fish Farms