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Sliding gate operator limit sensor - Magnetic mechanism
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Home Accessories Sliding gate operator limit sensor – Magnetic mechanism
Sliding gate operator limit stopper bracket
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Sliding gate operator limit sensor – Magnetic mechanism

$58.40

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Sliding gate operator limit sensor – Magnetic mechanism

A sliding gate operator limit sensor, often a limit switch, is a crucial component that signals the gate operator when the gate has reached its fully open or fully closed position, stopping the motor and preventing over-travel. These sensors ensure the gate stops at the correct positions, preventing damage to the gate and surrounding structure. 

Here’s a more detailed explanation:
  • Function:

    Limit sensors, like limit switches, detect when the gate reaches its extreme open or closed positions. 

  • How it works:

    When the gate reaches the limit, the sensor sends a signal to the gate operator’s control board, which then stops the motor. 

  • Importance:

    Without limit sensors, the gate might continue to move, potentially hitting the end posts or other obstructions, causing damage. 

  • Types:

    Common types include magnetic limit switches and photoelectric sensors (photo eyes). 

  • Magnetic Limit Switches:

    These utilize magnets placed on the gate and a magnetic sensor on the operator. When the magnet aligns with the sensor, it triggers the limit switch. 

  • Photoelectric Sensors (Photo Eyes):

    These use infrared beams to detect obstructions. When the beam is broken (e.g., by the gate), the sensor signals the operator to stop. 

  • Installation:

    Proper installation and adjustment of limit sensors are crucial for the reliable operation. 

  • Maintenance:
    Regular inspection and maintenance of limit sensors are recommended, as they can wear out or become misaligned over time. 
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Category: Accessories Tags: gate automation, gate motor, Gate opener, gate operator, magnet, magnetic, Royal gates, Sliding gate, Sliding gate opener, Sliding gate operator, switch
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Description

Sliding gate operator limit sensor – Magnetic mechanism

A sliding gate operator limit sensor with a magnetic system is one type of limit sensor that uses magnets mounted on the gate and a corresponding magnetic sensor to detect the gate’s position and stop its movement at the desired open and closed limits.

When the magnet nears the sensor, it triggers a signal that cuts power to the motor, preventing the driveway gate opener from over-traveling. This mechanism ensures the gate stops precisely at the pre-set positions, enhancing both functionality and safety.

Usually, the Sliding gate operator limit sensor – Magnetic mechanism is used on the sliding gate opener and some types of swing gate operators.

More information about the sliding gates:

Sliding gate automation is usually included on the gate.

The single sliding gate is wider than the width of your driveway. It slides to one side of the drive opening on wheels that run along a track.

A single electric gate opener is mounted to one side of the drive entrance. The sliding gate motor is positioned so that a cog on the motor’s output shaft meshes with a toothed rack mounted along the inside of the gate. Therefore, as the electric sliding gate motor turns, the cog rotates in the rack and draws the gate along.

A sliding gate opens along a length of straight gate track more than twice the width of the driveway. This starts at the pillar or gate post on one side of the opening and crosses the drive past the opposite pillar. The sliding gate track is long enough for the gate to slide along to completely clear the drive entrance.

Additional information
Weight 0.1 kg
Dimensions 10 × 10 × 6 cm
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A magnetic contact switch, often simply called a magnetic contact or door/window sensor, is a simple yet highly effective security device that detects when a door, window, gate, or any movable barrier is opened or closed. How it Works: It consists of two main parts:
  1. The Sensor Unit (with a Reed Switch): This part contains a reed switch. A reed switch is a small, hermetically sealed (airtight) glass capsule with two tiny, flexible magnetic metal reeds (or contacts) inside. These reeds are usually made of a ferromagnetic material. This sensor unit is typically mounted on the stationary part of the opening (e.g., the door frame, window frame, or gate post).
  2. The Magnet Unit: This part contains a small, permanent magnet. This unit is mounted on the moving part of the opening (e.g., the door itself, the window sash, or the gate panel).
The Operational Principle:
  • Closed Position (Circuit Complete): When the door/window/gate is closed, the magnet unit is in very close proximity to the sensor unit. The magnetic field from the permanent magnet pulls the two tiny reeds inside the glass capsule together, causing them to make electrical contact. This completes an electrical circuit, indicating that the opening is secured.
    • Many common contacts are "Normally Open" (NO), meaning the circuit is open when the magnet is away and closes when the magnet is near.
    • Some are "Normally Closed" (NC), meaning the circuit is closed when the magnet is near and opens when the magnet is away. This is very common in security systems, as an "open" circuit triggers an alarm.
  • Opened Position (Circuit Broken/Changed): When the door/window/gate is opened, the magnet moves away from the reed switch. As the magnetic field weakens, the reeds spring back to their original position, breaking the electrical contact. This change in the circuit (from closed to open, or open to closed, depending on the type) signals the connected system (e.g., a car alarm, home security system, or gate control panel) that the opening has occurred.
Common Applications:
  • Security Systems (Homes, Businesses, Vehicles): This is the most prevalent use. Magnetic contacts are placed on:
    • Doors and Windows: To detect unauthorized entry. When a door or window is opened, it triggers the alarm.
    • Garage Doors/Overhead Doors: Larger, more robust magnetic contacts are used for garage doors.
    • Gates: Used on pedestrian gates or even main driveway gates (sometimes in conjunction with the gate opener's own limit switches) to monitor their open/closed status for security purposes.
    • Safes and Vaults: To detect if they have been opened.
    • Vehicle Doors/Trunks/Hoods: While vehicles have internal sensors, magnetic contacts can be added for enhanced security on specific compartments or custom modifications.
  • Access Control Systems: To monitor entry and exit points, log access events, or control other devices based on door status.
  • Automation Systems: To trigger actions based on the status of a movable part. Examples include:
    • Turning lights on/off when a door opens.
    • Indicating when a cabinet door is ajar.
    • Position sensing in industrial machinery.
  • Appliance Safety: Some appliances use magnetic contacts to ensure a lid is closed or a guard is in place before operation.
Types:
  • Surface Mount: Most common, easily screwed or adhered to the surface of the frame and door.
  • Recessed/Flush Mount: Designed to be drilled into the frame and door for a more discreet, hidden installation.
  • Heavy Duty/Overhead Door Contacts: Larger and more rugged, built for the heavier use and larger gaps often found with garage or industrial doors.
  • Wired vs. Wireless:
    • Wired: Physically connected to the alarm panel via wires, offering high reliability.
    • Wireless: Contain a small battery and a radio transmitter to send signals wirelessly to the alarm panel, offering easier installation.
In Vancouver, BC, magnetic contact switches are a common product found at security system suppliers, electrical wholesalers, and businesses that install residential and commercial security systems, including companies like Royal Gates if they offer security integrations for their gate systems.
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We are proud to provide you with driveway gate operator services and accessories. We have more than 28 years of experience in selling, installing, maintaining, and repairing electronic accessories for homes with the latest technology.
• #100 - 11538 132a St, Surrey, BC, V3R 7S2
• Sales Dep.: (778)384-2800
• Service Dep.: (778)561-4530
• info@retcc.ca

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