When a pneumatic driverequires high torque at controlled speed for mixers, winches, conveyors, hoists, or process equipment, theCleco MKR395M MK Series radial piston air motordeliversup to 11 HP ata 375 RPM free speed. Radial piston motors use multiple pistons arranged around the crank to generate high torque at low speeds, making this configuration well-suited for installations where a compact electric motor may not provide the desired stall capability or an air-powered safety profile. The 606 ft-lbs stall torque rating indicates the maximum torque available when the motor is brought to a stop under load, while reversible valving allows the motor to run in both directions for equipment that requires bidirectional drive control.The MKR395M combines a 5.2:1 gear ratio, 183 RPM at maximum horsepower, and 299 CFM air consumption for high-output pneumatic machinery applications. Its 1-1/4″ NPTF air inlet supports the airflow required by this 11 HP motor, and Cleco rates performance at 90 PSI air pressure. For applications where electric motor burnout, stall damage, or variable-speed control are concerns, this radial piston air motor provides a powerful pneumatic alternative when properly matched to the load and air system.Type: Radial Piston Air Motor | Series: MK Series | Model: MKR395M | Maximum Power: 11 HP / 8.20 kW | Valving: Reversible | Exhaust: Rear Exhaust | RPM at Max HP: 183 RPM | Free Speed: 375 RPM | Stall Torque: 606 ft-lbs / 822 Nm | Starting Torque: 374 ft-lbs / 507 Nm | Weight: 230 lbs / 104.3 kg | Air Consumption: 299 CFM / 8.47 m/min | Gear Ratio: 5.2:1 | Max Overhung Load at Stall: 2800 lbs / 1270 kg | Air Inlet: 1-1/4″ NPTF | Rated Air Pressure: 90 PSI / 620 kPaFeatures:Radial piston motor configuration provides high torque output at lower operating speeds for powered machinery and drive applications.11 HP maximum power supports demanding pneumatic drive requirements where electric motor substitution or air-powered operation is preferred.Reversible valving allows bidirectional rotation for equipment that must drive, retract, unwind, reposition, or reverse under controlled operation.606 ft-lbs stall torque gives the motor strong holding and overload capability when properly applied with sufficient load.5.2:1 gear ratio reduces output speed while increasing usable torque for machinery drive tasks.299 CFM air consumption and 1-1/4″ NPTF air inlet reflect the high-flow requirements of an 11 HP pneumatic motor.Cleco rates tool performance at 90 PSI air pressure for consistent comparison across MK Series radial piston motor models.Made in USA: Applications:Industrial machinery drives powering mixers, agitators, rollers, and equipment where high torque and controlled speed are more important than high RPM.Conveyor and material handling systems driving transfer mechanisms, indexing equipment, and pneumatic production machinery in plant environments.Winches, hoists, and winding equipment supplying reversible rotary power for lift, pull, rewind, or tensioning applications when matched to the required load.Process and production equipment replacing or supplementing electric motors in installations where stall tolerance and air-powered operation are useful.Oil, gas, mining, and marine maintenance supporting air-driven equipment where pneumatic power is commonly specified for rugged field or shop use.FAQs:Q: What does stall torque mean on the Cleco MKR395M?A: Stall torque is the torque available when the motor is stopped by load. For this model, the stall torque is 606 ft-lbs, which helps buyers evaluate whether the motor has enough overload capability for the driven equipment.Q: Is the MKR395M reversible?A: Yes. The MKR395M is listed with reversible valving, meaning the motor can operate in both rotational directions when the system controls are configured accordingly.Q: How much air does this motor require?A: Cleco lists air consumption at 299 CFM, with performance rated at 90 PSI. The compressor, piping, valves, fittings, and FRL should be sized to maintain adequate airflow without excessive pressure drop.Q: What is the difference between free speed and RPM at max HP?A: Free speed is the no-load speed of the motor, listed at 375 RPM. RPM at max HP is the speed where the motor develops maximum power under load, listed at 183 RPM for this model.Q: Can this air motor be used as an electric motor replacement?A: In many machinery applications, air motors are selected where stall tolerance, variable speed control, or pneumatic power is preferred. Final selection should confirm torque, speed, mounting, shaft connection, airflow, and duty requirements for the specific machine. .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)MKW419MFoot Mounting1 1/4 in Threaded Spindle671351654.0 | 2243230104.314.2-120.88 | 53011288No ValvingMKS392MFoot MountingDiscontinued691351654.0 | 2243225102.114.2-120.88 | 53011293Single Direction ValvingMKR395MFoot Mounting1 1/4 in Threaded Spindle183375606.0 | 822230104.35.2-120.88 | 53011299Reversible ValvingMKW420MFoot Mounting1 1/4 in Threaded Spindle183375606.0 | 822230104.35.2-120.88 | 53011299No ValvingMKW418MFoot Mounting1 in Threaded Spindle9751900117.0 | 15910491.61-120.42 | 51911311No 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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