Air Tanks Plus

PCP Airgun equipment

Manufacturing, Distribution, and Online Sales

Alkin W31 Mariner 3.7 cfm 4500 psi Compressor

Alkin W31 Mariner 3.7 cfm 4500 psi Compressorand other useful stuff

Air Tanks Plus also sells PCP Fill AdaptorsPCP Fittings, Custom Hoses, Tank Bags, and Much more…

Jump to different product categories
Key Features of the Alkin W31 Mariner 3.7 cfm 4500 psi Compressor

The price shown is MAP price, the price on your written quote will be lower.

  • Working Pressure:  3260 – 4500 psi |225-310 Bar
  • Charging Rate: 3.7 Cfm | 100 Lt/min | 6.3 m3/h
  • Motor RPM:  1070 (last longer vs. high RPM units)
  • Lead time is 2-3 days from order date.

Ordering Setup Questions?

  • Voltage Options:
    • 220 V / 50 Hz / 1 Phase
    • 380 V / 50 Hz / 3 Phase
  • Safety Valves Set Pressure
    • 3260 psi (100 Bar)
    • 4500 psi (310 Bar)
    • 5000 psi (350 Bar)
  • Fill Whip End:
    • Din300 w/ SCUBA Yoke (default)
    • CGA 346 SCBA
    • Female Foster ( paintball)


Freight Ground Shipping is Required

This is a big beefy product that can only be shipped by freight truck. Use the button below to submit your shipping location information and we will research the best freight shipping options. Then we will reach back to you and talk about final configuration options. We offer special pricing, and we will provide you with a written quote. Any Questions please give us a call 916-800-1398
Special Price
SKU W31-2-310-P2 Category Tags , , ,
Please scroll down to learn more about the Alkin W31 Mariner 3.7 cfm 4500 psi Compressor including additional photos and a product video or two if we have them.


The Alkin W31 Mariner, is a compact workhorse.

  • Working Pressure:  3260 – 4500 psi |225-310 Bar
  • Charging Rate: 3.7 Cfm | 100 Lt/min | 6.3 m3/h
  • Motor Power:  hP=3 | Kw = 2.2
  • Motor RPM:  1070 (last longer vs. high RPM units)
  • Dimensions:
    • Width:  18.11 in | 46 cm
    • Length: 43.30 in | 110 cm
    • Height:  25.59 in. | 65 cm

Standard Features

  • P21 Purifier with Refillable Purifier Element
  • 2nd and 3rd Stage Water Condensate & Oil Separator
  • 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 & Plug (20A Single Phase 220V )
  • 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 225-310 Bar / 3260-4500 Psi
  • Stainless Chassis
  • Extra Filling Hoses (to fill more than one tank at a time)
  • Disposable Filter Cartridge
  • Gas Engine Drive


This units will ship using freight shipping from NJ, USA.  We don’t have the ability to calculate the shipping realtime in the shopping cart.  If you are interested in purchasing this compressor, please add your email address to the wait list, and we will contact you.  We will then contact you to finalize the purchase.

Freight Shipping Information

  • Product Dimensions (L x W x H):    17.5 in x 32 in x 20.5 | 44cm x 81cm x 52cm
  • Weight: 144 lbs | 65 kg

Freight Shipping Important Information

  • Weight: 165 lbs. (Includes Pallet)
  • Dimensions: 22″ x 38″ x 26″ inch (Includes Pallet)
  • Freight class 92.5
  • Secured to Pallet: Yes
  • Pick up / Ship From Location: Newark, NJ 07114
  • Location Type: Business
  • Loading Dock: Yes
  • Fork Lift: Yes
  • Pick up Hours:


Compressors delivered ready to be operated with oil and filter cartridges already installed.

Compressor gets delivered with out a plug so, you will have to purchase right plug based on the phase and amperage of the power outlet.  If you are going to be plugging this into your electric dryer outlet, you will want to check the plug configuration your dryer uses.  Snap a photo with your phone and show it to the person at the hardware store.


All Compressors comes with 2 years limited warranty. User has to strictly follow the user’s manual and servicing instructions. Warranty excludes damages caused by human error.

Alkin W31 Sales Brochure & User Manual

Additional information

Weight 165 lbs
Dimensions 22 × 38 × 26 in
Power Option

Honda Gas, Electric


There are no reviews yet.

Be the first to review “Alkin W31 Mariner 3.7 cfm 4500 psi Compressor”

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

  • BoreMan pull through barrel cleaner

  • Getting Started

  • Freight Shipping Information

    How soon do you need it delivered. Extending the shipping time can lower the cost.
    Will the delivery need to be scheduled?
    If you do not have either a dock or a forklift at your delivery location, and your shipment is over 100 lbs, then a special delivery truck with a hydraulic lift will be used to get your shipment to the ground.
    If the delivery driver has to bring the shipment inside an office building or more than a few feet past the rear of the trailer, inside delivery will apply.