LCN 4841.US28 | Auto Equalizer (4840)

LCN 4841.US28 | Auto Equalizer (4840)

LCN 4841.US28 | Auto Equalizer (4840)

Finishes: US28 Silver w. Matching Arm 


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LCN 4841.US28 | Auto Equalizer (4840)


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  • Additional Product Details

    Pneumatic Automatic Operator w. Backcheck, Metal Cover - Adjustable Power Size 1-5. Push Side of Door.

    This variant includes:

    Cylinder Only - 4841-3971
    Standard, non-handed, cast iron cylinder


    Cover - 4840-72MC
    Standard, non-handed metal cover with black end caps

    Extra Duty Arm - 4840-3077EDA
    Standard, non-handed parallel arm features forged solid steel main arm and forearm for potentially abusive installations.

    Table of Sizes - Recommended range of door widths for all closer models.

    Correct Closer Adjustment

    Suits doors <102 kilos 

    The basic design concept for all LCN power operator systems is door control of both the opening and closing motion of the door. Our designs allow the system to be easily retrofitted into existing doors, frames, and new construction. A basic LCN electrohydraulic/pneumatic system consists of a power operator based on a heavy-duty LCN 4040 Series door closer and peripheral actuators. Our electromechanical automatic operators utilise a motor gearbox and a control box to perform the opening and closing functions. LCN offers a choice of either electrohydraulic, electromechanical or pneumatic low-energy automatic operators.

    The 4840 Auto Equalizer™ is LCN’s pneumatically powered Multi-Door solution. This low-energy automatic operator provides easy access for people with disabilities or the elderly. It is designed primarily for manual opening applications that occasionally require automatic opening.

    • Multi-Door Solution
    • Utilizes a 10,000,000 Cycle Heavy Duty Door Closer
    • Quiet, Efficient & Reliable
    • Requires ACC Controller using auxiliary air supply (compressor) - See example ACC1
    • Safety Products - Dictated by traffic profile
    • All Weather Fluid - Performs without variation: Manual Closers - between -35° to +49°C, Electronic HO Closers & Automatic Operators - between +2° to +49°C. At approx. +75°C, the fluid will begin to leak from the mechanism. The flash point is approx. 110°C


    Pneumatic/Hydraulic Automatic Operators have very high to medium traffic capabilities. They are designed for doors primarily where occasional automation is desired but where able-bodied users will operate the door manually. They are best suited to heavy-duty situations on perimeter and internal doors where high traffic is anticipated. The quiet, low-energy operators are backed by a 2-year limited warranty and meet the American Disabilities Act (ADA) accessibility requirements.

    LCN Door Closers | Von Duprin Exit Devices | Schlage Locks

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    Relcross Limited (trading as) Relcross Door Controls | Hambleton Avenue | DEVIZES | Wiltshire | SN10 2RT | United Kingdom | T: ++ 44 (0) 1380 729 600 | F: ++ 44 (0) 1380 729 888 |  E: sales@relcross.co.uk 

  • Certification

    ANSI | UL | Warranty: 2 Years (Mechanical)

    Certificates, including DoPs, downloadable here

  • Resources | Downloads