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Mighty Mule Automatic Gate Opener for Heavy Duty Single Swing Gates for 18 Feet Long or 850 Pounds (FM500)

4.0 out of 5 stars 151 customer reviews

List Price: $595.00
Price: $525.00 & FREE Shipping
You Save: $70.00 (12%)
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Ships from and sold by Gate Openers Unlimited.
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  • The FM500 is rated the Best in Class for Heavy Duty Gate Operators.
  • Mighty Mule's strongest single swing gate opener for gates up to 18 ft. long or 850 lbs.
  • Perfect for all gate types including ornamental, chain link, tube, panel, vinyl and wood.
  • Easy DIY (Do It Yourself) installation that includes an interactive DVD for added assistance.
  • All-inclusive kit that does not require welding or an electrician.
  • 30% Residential Energy Efficient Property Tax Credit available! Residential home owners can use this credit on a new operator system, accessories and installation with the purchase of a Mighty Mule 10-watt Solar Panel (FM123).
  • Backed by an 18 month Mighty Mule Warranty and Technical Support.
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Frequently bought together

  • Mighty Mule Automatic Gate Opener for Heavy Duty Single Swing Gates for 18 Feet Long or 850 Pounds (FM500)
  • +
  • Mighty Mule Wireless Digital Keypad (FM137)
  • +
  • Mighty Mule Single Button Gate Opener Remote (FM135)
Total price: $588.36
Buy the selected items together


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From the manufacturer

FM200, mighty mule, gate, operator, electric gate, single gate FM350, mighty mule, gate, operator, electric gate, single gate FM500, FM502, mighty mule, gate, operator, electric gate, single gate, dual gate
FM200 FM350 FM500/FM502
Performance Best Value Performance Kit Best Solar Gate Opener Kit on the market Best In Class DIY Heavy Duty Gate Opener Kit
Weight Designed for gates up to a max. of 300 lbs. or max. 12 ft. long Designed for gates up to a max. of 550 lbs. or max. of 16 ft. long Designed for gates up to a max. of 850 lbs. or max. of 18 ft. long, per leaf
Single or Dual Single gate model only Single gate model only Single and dual gate models available
Battery Type Requires 12 Volt automotive or marine battery and weather-proof case - not included Requires 12 Volt automotive or marine battery and weather-proof case - not included Includes one 12 Volt, 7 Amp hour battery, and the control box has room for a second 12 Volt, 7 Amp hour battery
Cycles Up to 77 back up cycles. (*Estimated number of daily cycles, based on use with a transformer and one (1) 12 Volt battery.) Up to 145 back up cycles. (*Estimated number of daily cycles, based on use with a transformer and one (1) 12 Volt battery.) Up to 185 back up cycles. (*Estimated number of daily cycles, based on use with a transformer and one (1) 12 Volt battery.)
Warranty 12 Month Limited Warranty 12 Month Limited Warranty 18 Month Limited Warranty

Product description

Product Description

Automatic opener for single gate use, opens gates up to 18' long & up to 850 lbs, solar compatible, 12V battery backup for power failure, kit includes: opener, entry transmitter, mounting hardware, 12V transformer, control box , installation instructions & video, standard features include adjustable automatic closing 0 to 120 seconds & adjustable obstruction sensing.

From the Manufacturer

Have you ever wanted to be able to open your gate with the touch of a button? With a Mighty Mule automatic gate opener, you can, and you can install it yourself! The Mighty Mule FM500 Single Gate Opener is a heavy duty, commercial grade swing gate opener that is very easy to install. It is ideal for gates weighing up to 850-Pounds, or up to 18-Feet long. The FM500 comes with a standard Do-It-Yourself kit, which includes an installation video, detailed manual, battery, one transmitter, all mounting hardware, and an 18 V AC transformer. This durable opener features Soft Start/Soft Stop, Adjustable Auto Close (0-120 Seconds), Adjustable Gate Activation Alert, UL approved Obstruction Sensing Systems, as well as an extra large Control Box that is prewired for an optional second battery (we recommend a second battery for solar and for dual applications). The 12 Volt, DC-powered low-voltage system is powerful, dependable and durable. Ideal for gates that open into the property (standard in kit) or with gates opening out from the property using a Push-To-Open Bracket FM148 (sold separately). Low Voltage wire req'd for most installations (sold separately).


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