Product

MJ-300 Sliding Gate Opener (Steel Racks)

900lb rack-drive sliding gate opener with 2 remotes and 13.12ft steel racks

$142.49
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Blütezeit ME-MJ Sliding Gate Opener – Small Size, High Efficiency!

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sliding gate opener rack driven automatic door operator motor
Strong Performance in a Streamlined Design
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Specifications: Power Supply: AC110~120V; Motor Power: 130W; Max. Lifting Weight: 900lb; Output Torque: 12N.m; Moving Speed: 40ft/min; Remote Control Range: ≥100 ft; Frequency: 433.92MHz; Remote Capability: 100pcs (2 are included).

Built for Convenience and Strength

rack driven slide gate opener

Compatible with Two Rack Types

Compatible with nylon and galvanized iron racks, available for separate purchase.

steel base for sliding gate opener

Reinforced Metal Base

Thickened and elevated metal base ensures stability, durability, and resistance to deformation.

manual release key hex clutch

Manual Emergency Tool

Includes a hex key for manual clutch operation, allowing easy gate movement during power outages.

magnet limit switch

Dual-Color Limit Blocks

Two-color magnetic limit blocks (BLUE for OPEN, RED for CLOSE) make it easy to identify and install.

Complete Accessories for Easy Installation

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Made of High-Quality Galvanized Steel – Weather-Resistant, Rust-Proof, and Built to Last. * Rack-Driven Design – Provides a Clean Look, Smoother Movement, and Quieter Operation with Less Maintenance. * Welding Required – Nuts (included) must be welded to the gate frame for secure installation.

Specification

Rack Length (Each) 3.28 ft (1 meter) per piece
Total Rack Length 13.12 ft (4 meters, 4pcs total)
Dimensions 39.37″ x 1.18″ x 0.32″ (1000 x 30 x 8 mm)
Weight (Per Rack) Approx. 3.3 lbs per piece

Steel Gear Rack Installation Steps

  1. Align the First Rack Section Precisely Position the first rack section on the gate frame and sit it firmly onto the motor’s drive gear. Ensure the gear teeth fully mesh with the rack teeth for smooth movement and optimal contact.
  2. Level the Rack Use a spirit level to confirm that the rack is perfectly horizontal. Tip: Maintain a small clearance (1–2 mm) between the gear and rack to allow for thermal expansion and avoid unnecessary friction.
  3. Test Manual Movement Gently slide the gate by hand along the track to check for any sticking points or misalignment. The rack should move freely and remain fully engaged with the drive gear at every point.
  4. Weld the Mounting Nuts Only* Do NOT weld the rack directly to the gate Instead, weld the supplied mounting nuts (threaded inserts) to the gate surface at the desired fixing points. Once the nuts are secured, use the included bolts to fasten the rack in place.
  5. Install Additional Rack Sections Align the next rack piece with the previous one by matching the teeth precisely—no gap or overlap. Repeat the above steps for each section until the entire gate length is covered.
  • Ensure consistent tooth alignment between rack segments to avoid jamming during gate movement.
  • Once installation is complete, test the entire system with the gate opener to ensure smooth, quiet, and stable operation.
  • Use anti-rust paint or protective coating on welded points if needed for long-term outdoor durability.
  • Do NOT weld the bolts to the rack or gate. Use them only for fastening.
  • Do NOT weld two rack sections together. Align them precisely and bolt each individually.

Reliable Pre and After-Sales Support

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