ARO Piston Pumps

    ARO piston pumps provide industry proven dependability, economy and precision control for the delivery of a wide range of flowable materials. Whether you are moving a small amount of low viscosity fluid a few feet or a large amount of high viscosity material a longer distance, ARO has a pump to meet your application needs.

    Simply reliable and safe air motor
    At the heart of ARO-Force piston pumps are superior air motors, featuring our proprietary AFX technology. With only five moving parts, our air motors are truly advanced yet simple. No other air motor out there delivers the precise performance, flexibility, and simplicity of an AFX air motor.
    – Minimized failure risk due to fewer moving parts
    – True Link Valve™ virtually eliminates pulse profile.
    – No springs to fail due to fatigue or corrosion.
    – Requires no lubrication and no lubricator installation.
    – Backed by a 5-year warranty.
    We incorporated important features to make our AFX air motors safe (dump pressure manually, groundable / ATEX-compliant, standard muffler).

    Superior performance with abrasive fluids
    – Plunger rods and cylinder tubes feature the exclusive ARO ceramic ultra-coating, extending service life up to twice as long.
    – Chrome-plated stainless steel plungers for superior resistance to rust and corrosion.
    – Eight packing options are available, including ultra-high molecular weight polyethylene (UHMW-PE), for even better material compatibility and maximum abrasion resistance.

    Application Package: The right package for your application
    Most applications require more than just a pump. ARO offers a wide range of transfer, extrusion, and finishing packages that not only enhance your productivity, but also simplify the ordering process. We provide you with the right configuration of air motor, piston pump, mount, follower, controls, and downstream accessories.

    FINISHING, COATINGS, SEALANTS, INKS & ADHESIVES

    Two-post Ram
    Packages

    Features a two-post ram, pump, follower plate and controls designed for high viscosity applications.
    Single-post Ram
    Packages

    Single-post ram with pump, follower plate, and controls for medium to heavy viscosity extrusion.
    Airless Spray Pump
    Packages

    Popular in airless spray applications, these packages are delivered with air control, material filter, and suction hose.
    Cart-mounted Pump
    Packages

    When portability is required for light- to medium-viscosity (less than 50K cPs) extrusion.
    Agitator Lift
    Packages

    Ideal for finishing and adhesive applications where you need to keep fluid mixed.

     

    ARO Piston Pump Types and Applications

    Transfer: Involves moving a low-to-medium viscosity fl uid. 2-ball and 4-ball pumps are most frequently used in transfer applications.

    Extrusion: Involves using a Piston Pump to apply medium-to-high viscosity materials. Typical extrusion applications require accessories like rams and fl uid regulators. Chop-Check and 2-ball pumps are used in extrusion applications.

    2-ball Pumps
    The most versatile pumps in the ARO line. They are capable of handling applications from simple transfer to the extrusion of low to medium viscosity materials up to 100,000 centipoise (cPs) with fluid delivery up to 68.6 l/min (18 gpm).

    4-ball Pumps
    Designed to transfer high volumes of low and medium viscosity fl uids up to 12,500 cPs with fl uid delivery up to 124 l/min (33 gpm). A common use involves circulating fl uid from the original container, to the point of use, and then back.

    Chop-check Pumps
    The heavy-hitters of the line, ARO chop-check pumps are designed to move medium to high viscosity fl uids ranging from 15,000 to more than 1,000,000 cPs, and at delivery rates up to 46.3 l/min (12 gpm).

    LUBRICATION

    Lubrication Packages
    The ARO line of lubrication pumps for the transfer and supply of oil and grease – Fitted with drum cover, or with bung adaptor to thread into the container.

    BULK MATERIAL TRANSFER / CIRCULATION

    Floor Mount Packages
    Ideal for fl uid transfer from tanks and piping systems.
    Wall Mount Packages
    The compact design of our piston pumps make them ideal for mounting on walls or appropriate structures.

    HIGH PRESSURE CLEANING

    Wash Pump Packages
    When it is time to clean up, our wash pump is a great high-power cleaning solution.

    ARO Piston Pumps

    2-ball Piston Pumps
          
    1:1 18 l/min (4.7gal) 10 (145) Immersed 3/4” Carbon steel 2”
    2:1 8.1 l/min (2.1 gal) 21 (305) 1 1/4” or immersed 3/4” Carbon steel or stainless steel 2”
    4:1 8 l/min (2.1 gal) 41 (595) 1 1/4” or immersed 3/4” Carbon steel or stainless steel 3”
    9:1 10.5 l/min (2.7 gal) 90 (1305) 1 1/2” or immersed 3/4” Carbon steel 4 1/4”
    9:1  10.8 l/min (2.8 gal) 90 (1305) 1 1/4” NPT 3/4” Stainless steel 4 1/4”
    10:1 58.9 l/min (15.5 gal) 80 (1160) 2” NPT 1 1/4” Stainless steel 8”
    11:1  14 l/min (37.2 gal) 120 1” NPT 1” Stainless steel 4 1/4”
    15:1  68.6 l/min (18.1 gal) 90 (1305) 2” NPT 1 1/4” Stainless steel 10”
    18:1  2.3 l/min (.60 gal) 185 1/2” NPT 1/4” Stainless steel 3”
    22:1  7.3 l/min (1.9 gal) 235 1” NPT 1” Stainless steel 4 1/4”
    23:1  14.3 l/min (3.7 gal) 240 1” NPT 1” Stainless steel 6”
    23:1  68.6 l/min (18.1 gal) 140 (230) 2” NPT 1 1/4” Stainless steel 12”
    28:1  1.4 l/min (.36 gal) 288 1/2” NPT 1/4” Stainless steel 3”
    28:1 23.7 l/min (6.2 gal) 230 2” NPT 1” Stainless steel 8”
    30:1 4.9 l/min (1.2 gal) 320 1” NPT 1” Stainless steel 4 1/4”
    40:1  14 l/min (3.6 gal) 340 1” NPT 1” Stainless steel 8”
    45:1  7.3 l/min (1.9 gal) 375 1” NPT 1” Stainless steel 6”
    45:1 23.7 l/min (6.2 gal) 280 2” NPT 1” Carbon steel 10”
    60:1  5.4 l/min (1.4 gal) 425 1” NPT 1” Stainless steel 6”
    65:1  23.7 l/min (6.2 gal) 400 2” NPT 1” Carbon steel 12”

    4-ball Piston Pumps
          
    2:1 80.6 l/min (21.2 gal) 21 (305) 1 1/2” NPT 1” Stainless steel 4 1/4”
    3:1 110.8 l/min (29.2 gal) 31 (450) 1 1/2” NPT 1” Stainless steel 6”
    4:1 80.6 l/min (21.2 gal) 45 (652) 1 1/2” NPT 1” Stainless steel 6”
    5:1 124 l/min (32.7 gal) 48 (696) 1 1/2” NPT 1” Stainless steel 8”
    7:1 88.8 l/min (23.4 gal) 70 (1015) 1 1/2” NPT 1” Stainless steel 8”

     

    Chop-Check Piston Pumps
          
    12:1 12.3 l/min (3.2 gal) 144 Flange mount 1” Carbon steel 4 1/4”
    13:1 46.3 l/min (12.2 gal) 130 Flange mount 1 1/2” Carbon steel 8”
    20:1 39.7 l/min (10.4 gal) 155 Flange mount 1 1/2” Carbon steel 10”
    22:1 1.9 l/min (.50 gal) 225 Follower plate
    or immersed
    3/4” Carbon steel
    or stainless steel
    3”
    23:1 6.9 l/min (1.8 gal) 254 Flange mount 1” Carbon steel 4 1/4”
    23:1  12.3 l/min (3.2 gal) 290 Flange mount 1” Carbon steel 6”
    28:1  22.7 l/min (5.9 gal) 230 Flange mount 1 1/4” Carbon steel 8”
    30:1  46.3 l/min (12.2 gal) 220 Flange mount 1 1/2” Carbon steel 12”
    43:1  2.8 l/min (.73 gal) 450 Follower plate 1/2” Carbon steel
    or stainless steel
    4 1/4”
    44:1 14.3 l/min (3.7 gal) 410 Flange mount 1” Carbon steel 8”
    44:1  22.9 l/min (6.0 gal) 270 Flange mount 1 1/4” Carbon steel 10”
    46:1  6.9 l/min (1.8 gal) 515 Flange mount 1” Carbon steel 6”
    65:1  5.1 l/min (1.3 gal) 515 Flange mount 3/4” Carbon steel 6”
    65:1  22.9 l/min (6.0 gal) 400 Flange mount 1 1/4” Carbon steel 12”

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