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Mighty Mule
Gate Operators

(All 12V DC)
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Replacement Parts
Silver-HD-Dual Gate Operator

Product Code: SILVER-HD-DUAL

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Silver-HD-Dual Swing Gate Operator

Internet Special! You won't find this deal at any big box store!

Low voltage swing gate operator designed for tubular steel, vinyl, wood, or ornamental gates for residential and light commercial use. The Silver-HD-Dual is for double swing gates up to 18' long and 850 lbs. per leaf (see cycle chart for more information). The Silver Anniversary Series Operators are available exclusively for Professional GTO/Mighty Mule Distributors/Dealers. The operator includes extra items you would normally have to pay additional charges for. GTO offers these operators as an alternative to their top-of-the-line GTO/PRO Operators for budget-minded consumers that want value at a discounted price.

  • Includes two batteries, two transmitters, and two pin locks to prevent theft
  • Designed for double swing gates up to 18 ft. long and up to 850 lbs. per leaf
  • 12 volt system, no electrician required - Easy operator to install for the "do-it-yourselfer"
  • Soft start/stop feature increases the life of the opener and gate hardware
  • Large control box with room for extra battery and accessories
  • Gate will work during electrical power outage
  • Quick and easy installation, with user friendly instructions and video
  • Provides an average of 70 cycles per day with transformer (see cycle chart link below)
  • Solar Panel Charger available for remote locations
  • Receiver unit with antenna and 10' cable can be placed in best location for reception of signal
  • Can be operated by remote transmitter, digital keypad, push button or combination
  • Built in obstruction sensing and adjustable auto close option
  • Full access ready package includes battery, radio receiver, entry transmitter, AC transformer, and all necessary mounting hardware for a standard installation.
  • Designed for gates that open into property (pull-to-open) or away from the property (push-to-open).
  • Push-to-open requires two replacement pivot brackets FM148 (sold individually)
  • UL rated for Class I, II, III, and IV. System certified to be in compliance with UL 325, 4th edition.
  • 12 month limited warranty applies to replacing parts from GTO, Inc.
  • Manufacturer's extended warranty available
  • 30 day satisfaction guarantee from Hoover Fence

Technical Specifications:

  • Low friction screw drive (linear actuator).
  • Temperature rating of motor: -5F (-28C) to +160F (+71C).
  • Powered by a 12 V motor with integral case hardened steel gear reducer. Motor speed reduced to 260rpm. Generates 680 ft. lb. of torque at 12V.
  • Maximum opening arc of 110. Approximate 90 opening time is 18 to 20 seconds, depending on weight of gate.
  • The Silver-HD-Dual system is powered by a 12 volt DC/7.0 amp hour, sealed, rechargeable lead acid battery.
  • Battery charge is maintained by a 120 Vac, 18 Vac output transformer rectified to 14.5 Vdc (40 VA) through the GTO control board. One (1) blade-style control board fuse is rated for 25A. NOTE: The transformer should not be directly connected to any battery. Do not replace fuses with higher ampere rated fuses; doing so will void your warranty and may damage your control board.
  • Mighty Mule 502 is capable of using solar panels to charge the battery. Battery charge is maintained by GTO Solar Panel Charger: float voltage of 14.5 Vdc output from a 19-3/* x 8-1/2" silicon alloy panel. Generates minimum of 5W at 300 mA. A gated diode on the control board prevents battery discharge.
  • Battery Heater recommended for zones where temperatures drop below freezing for extended periods of time to prevent cold weather discharge.
  • GTO microprocessor-based control board is set for single leaf, pull-to-open gate installations. DIP switches can be adjusted to accommodate an optional kit for push-to-open gates. (See accessories)
  • Control board has temperature compensated circuits.
  • A circuit in the control board regulates charging. "Sleep draw" is 40 mA; "active draw" is 2 to 5 A.
  • Auto-memorization of digital transmitter code.
  • GTO remote-mounted RF receiver tuned to 318MHz.
  • Opener length with push-pull tube fully retracted is 40-1/4", mounting point to mounting point.
  • Adjustable auto-close timer (OFF to 120 s), and obstruction sensitivity.
  • Power terminal block accommodates a transformer and solar panels.
  • DIP switches simplify setup of gate opener.
  • Accessory terminal block fully compatible with push button controls, digital keypads, safety loops, etc.
  • Control board allows connection of safety edge sensors and photoelectric sensors.
  • Audio entrapment alarm sounds if unit encounters an obstruction twice while opening or closing.
  • Operator arms(2)
  • 6 ft. and 40 ft. power cables
  • Control box
  • (2) Entry transmitters
  • 12 Volt transformer
  • (2) Batteries
  • (2) Pin locks
  • Receiver with 10 ft. cable
  • Mounting brackets/installation hardware
  • Bracket hardware
  • Instruction manual
  • Installation video
  • Extended warranty form
  • Customer support card
  • Warning signs (four)
  • 16 gauge, dual conductor, multi-stranded, direct burial, low voltage PVC sheathed wire required (not included, sold in 1000' roll or by the foot here)

Picture of included parts

Other parts you may need (click for more)

Cycle Chart for use with transformer provided

Installation Manual

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includes ground shipping to USA. Hawaii and Alaska extra.

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