LiftMaster SL585UL AC Heavy-Duty Industrial Slide Gate Operator 1/2 HP, 115/208/230V 1PH

$4,359.29 each

Product Description

LiftMaster SL585UL AC Heavy-Duty Industrial Slide Gate Operator 1/2 HP, 115/230V 1PH

SL585UL features a heavy- duty industrial lockable metal cover.

  • Heavy-Duty Commercial Gear-Driven Transmission provides unsurpassed reliability.
  • Surge Suppression provides industrial surge and lightning protection against strikes up to 50 feet away.
  • Warranty 2 years.
  • myQ® Technology enables you to securely control and monitor your gate operator from anywhere.
  • Universal Footprint simplifies retrofit applications by adapting to preexisting pads.
  • Homelink® Compatible (version 4.0 and higher).
Safe and Secure
  • Security+ 2.0® safeguards access with an encrypted tri-band signal to virtually eliminate interference and offer extended range.
  • Manual Disconnect when unlocked allows gate to be operated manually.
  • Quick Close and Anti-tailgate quickly secure property, preventing unauthorized access.
  • Lockout/ tag-out Feature prevents power from being switched on when servicing operator and safeguards workers from high-voltage power.
  • Automatic Solenoid Brake prevents the gate from being back driven.
Included Accessories
  • LMRRUL Monitored Retroreflective Photo Eye enhanced retro-reflective photo eye now with heater and wider polarized beam, engineered to stay aligned; max. Range: 50 ft.
  • S505AL Monitored Small Profile resistive edge pressure-sensitive edge stops and/or reverses gate when obstructed.
  • High-Starting Torque continuous-duty motor (available in 1/2, 1 and 1 1/2 HP)
  • Operator Duty Rating: 20 cycles per hour
  • Wormgear Reduction: 20:1 Wormgear Reducer
  • Adjustable Friction Clutch: helps to protect gate and operator from damage should the gate meet an obstruction
  • Chain: #50 nickel-plated (25ft. supplied)
  • 115/208/230VAC Single-Phase; 208/230/460/575VAC 3-Phase (575V includes factory-installed heater)
  • Accessory Power: 24VDC 500mA Max.
  • Dual -Voltage Connections: increase flexibility by enabling the installer to select the required voltage, within phase, to meet job-site requirements.
Commercial-Grade Design
  • Chassis: heavy-duty steel chassis and lockable powder-coated steel cover withstands extreme and harsh environments
  • Cover /Frame: weather-resistant, lockable, 16-gauge steel ; 7-gauge pre-galvanized steel frame
  • UL® Usage Classification: I, II, III and IV
  • Operator Weight: 240 lbs.
  • Height: 38.02”
  • Width: 30.63”
  • Depth: 17.30”
Temperature Specifications
  • Without heater: -4°F (-20°C) to 140°F (60°C)
  • With optional heater: (HTRNB—HTR460 for 460V operators) 40°F (-40°C) to 140°F (60°C)
Gate Travel Speed
  • 11” per second
Standard Features
  • External Alarm Reset Button: instantly resets the built-in safety alarm siren
  • Mechanical Limit System: maintains accurate gate position throughout gate travel, even after using manual disconnect
  • Monitored Safety Inputs: 3 main board, 3 expansion board
  • Security+ 2.0® On-Board Radio Receiver: Tri-Band 310/315/390 MHz frequency up to 50 remote controls (unlimited with 811LM/813LM)
  • Led Diagnostic Display: simplifies installation and troubleshooting
  • Programmable Auxiliary Relays: make adding additional features easy
  • Homelink® Compatible: version 4.0 or higher (May require an external adapter depending on the model and year of your vehicle. Visit for additional information.)
    IMPORTANT: Due to supply chain shortages we currently do not offer quantity discounts, and for some of our products we are limiting the quantities that may be purchased.

Quantity Discounts

2+: $4,359.29 each
4+: $4,359.29 each
8+: $4,359.29 each


We are either "OUT OF" this part because it is currently unavailable, or the part is "NLA" - No Longer Available. Please contact us regarding future availability or possible substitutes for items that are no longer available.

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PLEASE NOTE: COVID has interrupted global supply distribution chains resulting in unprecedented delays on incoming door and dock industry products. The result is limited availability of many products, two to three month delays on incoming shipments, and an inflationary rate of over 100% in 2021 on many of our core products such as springs.


PLEASE NOTE: Due to cone shortages, we no longer provide springs with the end cones on the 1 3/4" and 2" inside diameter springs unless you are willing to wait for two months. If you need the larger inside diameter springs with or without cones, there will be a two month delay on these as well. If you are willing to wait two months for your springs, please note that in the comment section of your order. We deeply regret the hardships this will create for many of our customers.

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