Leading US Manufacturer of
Heavy Duty Hinges & Door Operators

  • NB-500-Pull-LH

    For use on single or double doors, up to 4,500 lbs.*
    *Providing Maximum Operating Torque and door width has not been exceeded.
    Available in Pull (LH/RH), Push (LHR/RHR)

  • NB-500-Pull-LH

    Designed for heavy commercial/ industrial type doors that meet the requirements of ANSI 156.19. Drive train is power open, power close (no return spring). For use on single or double doors, up to 2500 lbs*
    *Providing Maximum Operating Torque and door width has not been exceeded.
    Available in Pull (LH/RH), Push (LHR/RHR)

  • NB-500 Opcon -- Isometric View

    Drive train is housed in a sealed OPCON UL50 TYPE 4 enclosure. Control panel is NEMA 1 located remotely for easy access. For use on single or double doors, up to 1500 lbs*
    *Providing Maximum Operating Torque and door width has not been exceeded.

  • NB-1000-Pull-LH

    For use on single or double doors up to 12,000 lbs*.
    *Providing Maximum Operating Torque and door width has not been exceeded.
    Available in Pull (LH/RH), Push (LHR/RHR)

  • NB-2000-Pull-LH

    For use on single or double doors up to 20,000 lbs*.
    *Providing Maximum Operating Torque and door width has not been exceeded.
    Available in Pull (LH/RH), Push (LHR/RHR)

  • Direct-Couple-Operator

    Completely concealed hinge system that will rotate a door 180° (shown below).

  • Slider1

    Single and bi-parting door operating systems for commercial/industrial doors that weigh 500 lbs to doors weighing in excess of 100,000 lbs**!
    **Providing Maximum Horizontal Operating Force and door speed has not been exceeded.

  • DO250