---
product_id: 5152418
title: "Mighty Mule Automatic Gate Opener for Heavy Duty Dual Swing Gates for 18 Feet Long or 850 Pounds per Leaf (FM502)"
brand: "mighty mule"
price: "₨12651"
currency: SCR
in_stock: false
reviews_count: 10
url: https://www.desertcart.sc/products/5152418-mighty-mule-automatic-gate-opener-for-heavy-duty-dual-swing
store_origin: SC
region: Seychelles
---

# Solar panel compatible 12V power source Heavy-duty design Mighty Mule Automatic Gate Opener for Heavy Duty Dual Swing Gates for 18 Feet Long or 850 Pounds per Leaf (FM502)

**Brand:** mighty mule
**Price:** ₨12651
**Availability:** ❌ Out of Stock

## Summary

> 🚪 Open the door to convenience with Mighty Mule!

## Quick Answers

- **What is this?** Mighty Mule Automatic Gate Opener for Heavy Duty Dual Swing Gates for 18 Feet Long or 850 Pounds per Leaf (FM502) by mighty mule
- **How much does it cost?** ₨12651 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/5152418-mighty-mule-automatic-gate-opener-for-heavy-duty-dual-swing)

## Best For

- mighty mule enthusiasts

## Why This Product

- Trusted mighty mule brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Reliable Support:** 18-month warranty and dedicated technical support.
- • **Unmatched Strength:** Handles gates up to 18 ft. or 850 lbs. effortlessly.
- • **No Welding Required:** All-inclusive kit for a seamless installation experience.
- • **Energy Efficient Savings:** Qualify for a 30% tax credit with solar panel purchase.
- • **DIY Installation Made Easy:** Includes an interactive DVD for a hassle-free setup.

## Overview

The Mighty Mule Automatic Gate Opener (FM502) is engineered for heavy-duty dual swing gates, accommodating lengths of up to 18 feet and weights of 850 pounds per leaf. This user-friendly system is perfect for various gate types and comes with a comprehensive installation kit, including a helpful DVD. Enjoy energy efficiency benefits and peace of mind with an 18-month warranty and expert support.

## Description

Product Description               Automatic opener for dual gates, each opener opens a gate up to 18' long & up to 850 lbs per leaf, solar compatible, 12V battery backup for power failure, kit includes: Openers, remote 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 FM502 dual gate opener is a heavy duty, commercial grade swing gate opener that is very easy to install. It is ideal for dual gates weighing up to 850-Pound or up to 18-Feet long per leaf. The FM502 comes with a standard do-it-yourself kit, which includes an installation video, detailed manual, battery, one transmitter, all mounting hardware and an 18-Volt 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 away from the property using two push-to-open brackets FM148 (sold separately).

## Features

- Mighty Mule's strongest dual swing gate opener; designed for gates up to 18 ft. long or 850 lbs. per gate panel.
- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Mighty Mule |
| Part Number | FM502 |
| Item Weight | 52 pounds |
| Product Dimensions | 15 x 46 x 15 inches |
| Item model number | FM502 |
| Is Discontinued By Manufacturer | No |
| Power Source | corded-electric |
| Voltage | 12 Volts |
| Item Package Quantity | 1 |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Warranty Description | Limited 18 Month Warranty (from date of purchase) |

## Images

![Mighty Mule Automatic Gate Opener for Heavy Duty Dual Swing Gates for 18 Feet Long or 850 Pounds per Leaf (FM502) - Image 1](https://m.media-amazon.com/images/I/81amizTZquL.jpg)
![Mighty Mule Automatic Gate Opener for Heavy Duty Dual Swing Gates for 18 Feet Long or 850 Pounds per Leaf (FM502) - Image 2](https://m.media-amazon.com/images/I/81KAdq+YO2L.jpg)
![Mighty Mule Automatic Gate Opener for Heavy Duty Dual Swing Gates for 18 Feet Long or 850 Pounds per Leaf (FM502) - Image 3](https://m.media-amazon.com/images/I/917Ry3XYJsL.jpg)
![Mighty Mule Automatic Gate Opener for Heavy Duty Dual Swing Gates for 18 Feet Long or 850 Pounds per Leaf (FM502) - Image 4](https://m.media-amazon.com/images/I/71Amm1si2bL.jpg)
![Mighty Mule Automatic Gate Opener for Heavy Duty Dual Swing Gates for 18 Feet Long or 850 Pounds per Leaf (FM502) - Image 5](https://m.media-amazon.com/images/I/71YWuDhwyiL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    do not waste any of your money on anything else
  

*by J***N on Reviewed in the United States on September 13, 2016*

do not waste any of your money on anything else. get this brand. Trust me. that other junk stressed me out! hand to send back with all of that stress. when you get this take the laptop to the gate , bring up youtube and watch, pause watch pause take your time get a beer, coffee, soda, take a break go play the dog a little. next thing you know you are done, and it works great noting worse than re doing instructions, or not being able to understand because you are in a hurry. I have a upscale kinda a house, man it looks great, I got this because we now have the grand kids a few days of the week, this along with the fence, they and the dong are in LOCK DOWN! and it looks like (the housewife show) YEA hit the remote...open gate, I feel rich!  no stress , take your time , it feels so good when it comes together- ps I did have one q about a push button I added, she answered the phone, I told her my issue she said< 'honey it will not work if you are using a lighted door bell" I thought that was funny,in a good way... but correct. Got one no light, bada bing bada boom , taking out the trash? push the button!

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    So far so good. Comparing swing gates to slide gates, we prefer slide gates but the FM502 is working well so far...
  

*by P***C on Reviewed in the United States on December 22, 2015*

Reviews of the GTO and Mighty Mule (MM) Do-It-Yourself (DITY) gates kits are mixed and many folks sustaining lightning strikes are unhappy with GTO/MM warranty coverage of their failed main boards or controller arm circuit boards. Other have has issues with the long term durability of swing gate operator mechanisms. We have had a GTO SL3000 12-volt DC solar slide gate operator in service for ~12 years with few problems other than an out-of-warranty failed main controller board at the 5 year point.Our most recent acquisition and installation was a solar powered Mighty Mule FM502 Heavy Duty Dual Swing gate system purchased via from Amazon. Between the two we prefer the sliding gate design and operator function to that of the relatively slow swing gates operation for both security and strength, but both suffice to control access to your property which is the main point of automatic gates. The installation of the FM502 is straight forward the the operators have worked well in light use. The GTO SL3000 unit s a much heavier duty unit but is for slide (rolling) gates.Some folks have complained the MM FM series swing openers are noisy in operation and we can only assume that complaint relates to the alarm beep option when the gates are either opening or closing. This in-operation alarm can be turned off with an on-board dip switch setting change. Factory default is for alarm sound during operation. The gates otherwise just have a mechanical gear noise that is not obtrusive and is basically a "background" type noise only when in operation. .

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    We've used this for nearly 7 years
  

*by S***. on Reviewed in the United States on November 29, 2021*

We installed our gate opener around March 2015, and it's still going strong as of this review nearly 7 years later.  We added the gate lock and a wireless remote. We've replaced the batteries twice within the 7 years, which is reasonable.  Being dual gates and having the optional gate lock does add a little complexity because the alignment has to stay within a tolerable range to avoid the lock getting stuck, but I'd say that's a "shifting post" issue. Once we  better-stabilized our gate posts, we've have had fewer problems.  We've had to occasionally reset our stop settings, and we wish that process was a little easier, but it's not a deal breaker.  Might Mule is an affordable option worth considering.

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-14*