When a machine needs compact pneumatic power without relying on an electric motor, the Cleco MA3W406M radial piston air motor provides 3 HP output with a 2,600 RPM free speed for high-speed driven equipment such as mixers, fixtures, conveyors, winches, and specialty machine builds. Its radial piston design (air-driven pistons arranged around a crankshaft for strong starting torque and smooth rotation under load) gives equipment builders a practical option where variable speed, stall tolerance, and compressed-air power are preferred over electric drive systems.The 24 ft-lbs stall torque rating indicates the torque available when the motor is stopped under load, while the 1,190 RPM speed at maximum horsepower helps buyers size the motor around its most efficient power point rather than free speed alone. With rear exhaust, no valving, a 5/8″ threaded spindle, and 80 SCFM air consumption, the MA3W406M is suited for integration into pneumatic drive systems where the control valve, mounting layout, and air preparation are selected around the machine design.Type: Radial Piston Air Motor | Series: MA3 Series | SKU: MA3W406M | Max Power: 3 HP / 2.24 kW | Free Speed: 2,600 RPM | Speed at Max HP: 1,190 RPM | Stall Torque: 24 ft-lbs | Gear Ratio: 1:1 | Spindle Type: 5/8″ Threaded Spindle | Length: 13.76″ | Air Consumption: 80 SCFM | Air Inlet: 3/4″ NPTF | Control: No Valving | Exhaust: Rear ExhaustFeatures:Radial piston air motor layout provides strong starting torque for equipment that must begin rotation under load.3 HP / 2.24 kW maximum power supports pneumatic drive applications where electric motors are not preferred or practical.2,600 RPM free speed allows higher-speed machine drive use when the motor is properly loaded and controlled.1,190 RPM speed at maximum horsepower helps integrators size the motor around its effective working power point.5/8″ threaded spindle gives machine builders a defined output connection for compatible couplings, adapters, or driven components.No-valving configuration lets the buyer specify the external control valve arrangement required for the application.Rear exhaust configuration directs discharged air away from the output side of the motor for cleaner machine integration.Cleco guidance states that MA3 Series motors should be operated with sufficient load to prevent overspeed and filled to the proper oil level before operation.Made in USA: Applications:Machine builders and OEM equipment powering compact pneumatic drive assemblies where air control and motor mounting are specified by the equipment design.Mixing and agitation systems driving light-to-moderate mixing equipment where stall tolerance and variable air control are useful.Conveyor and indexing machinery supplying pneumatic rotary motion for fixtures, transfer equipment, and intermittent-duty machine functions.Winches, hoists, and specialty drives supporting applications that need an air-powered motor with high starting torque characteristics.Plant maintenance and MRO retrofits replacing or adapting drive systems in facilities where compressed air is already available and electrical motor use is less desirable.FAQs:Q: What does radial piston mean on this Cleco air motor?A: A radial piston motor uses multiple air-driven pistons arranged around a crankshaft. This construction helps produce strong starting torque and steady rotary output for powered machinery.Q: Is the 2,600 RPM rating the normal working speed?A: No. Free speed is the unloaded speed of the motor. Cleco notes that these motors must be operated with enough load to prevent overspeed, and the speed at maximum horsepower for this model is 1,190 RPM.Q: Does the MA3W406M include a control valve?A: No. This model is listed with no valving, so the buyer or machine builder must supply the appropriate external air control valve for the system.Q: What air supply should be planned for this motor?A: Manufacturer data lists 80 SCFM air consumption and a 3/4″ NPTF air inlet. The compressed air system should be sized to maintain adequate flow and pressure at the motor during loaded operation.Q: Can this air motor be used as a direct replacement for an electric motor?A: It may be used in pneumatic drive designs where the horsepower, speed, torque, spindle, air consumption, mounting, and control requirements match the machine. Always verify the full dimensional and performance requirements before replacing an electric motor. .spec-accordion{width:100%;max-width:1200px;margin:1em auto;font-family:”Montserrat”,Arial,sans-serif;box-sizing:border-box} .spec-accordion *{box-sizing:border-box} .spec-accordion-toggle{width:100%;display:flex;justify-content:center;align-items:center;position:relative;background:#444;color:#fff;border:0;padding:14px 48px;font-family:”Bai Jamjuree”,Arial,sans-serif;font-size:16px;font-weight:700;text-transform:uppercase;cursor:pointer;text-align:center} .spec-accordion-toggle::after{content:”+”;font-size:22px;position:absolute;right:18px} .spec-accordion.open .spec-accordion-toggle::after{content:””} .spec-accordion-panel{display:none!important;width:100%;padding:16px 0 0} .spec-accordion.open .spec-accordion-panel{display:block!important} .spec-accordion-panel[hidden],.spec-accordion:not(.open) .spec-accordion-panel{display:none!important} .spec-table-wrapper{width:100%;max-width:1200px;margin:0 auto;overflow-x:visible!important;overflow-y:visible!important} .spec-table{width:100%!important;max-width:1200px;min-width:0!important;margin:0 auto;border-collapse:collapse;table-layout:fixed;font-family:”Montserrat”,Arial,sans-serif;font-size:12px;color:#000} .spec-table th{background:#444;color:#fff;text-transform:uppercase;font-family:”Bai Jamjuree”,Arial,sans-serif;font-weight:700;font-size:11px;padding:8px 4px;border:1px solid #ddd;text-align:center;line-height:1.15;white-space:normal;overflow-wrap:anywhere;word-break:normal} .spec-table td{padding:6px 4px;border:1px solid #eee;text-align:center;line-height:1.15;white-space:normal;overflow-wrap:anywhere;word-break:normal} .spec-table .long-text{white-space:normal} .spec-table tbody tr:nth-child(even){background:#f7f7f7} .spec-table tbody tr:hover{background:#e5e5e5} .spec-table a{color:#0066cc;text-decoration:none;font-weight:600;background:transparent;padding:0;border-radius:0;box-shadow:none} .spec-table a:hover{text-decoration:underline} .group-row td{background:#444;color:#fff;font-family:”Bai Jamjuree”,Arial,sans-serif;font-weight:700;text-transform:uppercase;text-align:left} @media(max-width:640px){.spec-accordion,.spec-table-wrapper,.spec-table{width:100%;max-width:100%}.spec-accordion-toggle{font-size:14px;padding:13px 48px}} .spec-accordion.is-mobile-table .spec-table-wrapper{overflow-x:visible!important;overflow-y:visible} .spec-accordion.is-mobile-table .spec-table{width:100%;max-width:100%;min-width:0!important;border:0;table-layout:auto} .spec-accordion.is-mobile-table .spec-table thead{display:none!important} .spec-accordion.is-mobile-table .spec-table,.spec-accordion.is-mobile-table .spec-table tbody,.spec-accordion.is-mobile-table .spec-table tr,.spec-accordion.is-mobile-table .spec-table td{display:block;width:100%} .spec-accordion.is-mobile-table .spec-table tr{margin-bottom:14px;border:1px solid #ddd;background:#fff} .spec-accordion.is-mobile-table .spec-table tbody tr:nth-child(even),.spec-accordion.is-mobile-table .spec-table tbody tr:hover{background:#fff} .spec-accordion.is-mobile-table .spec-table th,.spec-accordion.is-mobile-table .spec-table td{white-space:normal!important} .spec-accordion.is-mobile-table .spec-table td{display:flex;justify-content:space-between;gap:14px;text-align:right;border:0;border-bottom:1px solid #eee;padding:10px 12px;font-size:13px;word-break:break-word;overflow-wrap:anywhere} .spec-accordion.is-mobile-table .spec-table td::before{content:attr(data-label);font-weight:700;text-transform:uppercase;color:#444;text-align:left;flex:0 0 46%} .spec-accordion.is-mobile-table .spec-table td>a{word-break:break-word;background:transparent} .spec-accordion.is-mobile-table .group-row td{text-align:center;background:#444;color:#fff} .spec-accordion.is-mobile-table .group-row td::before{content:none} Available Variations and SpecificationsSKUMountSpindle TypeRPM at Max HPFree SpeedTorque StallWeightGear RatioLengthHorsepowerAir ConsumptionControl(RPM)(RPM)Ft-Lb | NmLbkgin | mmHp | kW(SCFM)MA3W407MFoot Mounting5/8 in Threaded Spindle48100588.0 | 7976730.124.6-116.56 | 4213.095No ValvingMA3W406MFoot Mounting5/8 in Threaded Spindle1190260024.0 | 335123.11-113.76 | 3503.080No Valving (function(){ function initSpecAccordions(){ document.querySelectorAll(“.spec-accordion”).forEach(function(a){ if(a.dataset.specAccordionInit===”true”)return; a.dataset.specAccordionInit=”true”; var b=a.querySelector(“.spec-accordion-toggle”),p=a.querySelector(“.spec-accordion-panel”);if(!b||!p)return; var u=false; function m(){return(a.getBoundingClientRect().width||window.innerWidth)
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