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High Security and High Speed, Designed for Applications with Low Headroom

Spiral® LH® High-Performance Door

The Spiral® LH® (Low Headroom) door offers high-speed for high-traffic situations. It meets low headroom garage door requirements for parking garages and other commercial structures. Rigid, aluminum slat construction eliminates the need for a second security door and crisp lines give the Spiral LH a stylish look. The Spiral LH door is ideal for governmentparkingsecurity, and automotive dealerships. Also available are models (up to 18′ wide) designed with 9-inch tall full-vision (-FV) or full-ventilation (-VT) slats for specific applications or environments.

The Spiral LH is backed by a 5-year limited warranty on motor/mechanical components and materials, plus a 2-year limited warranty on electrical components.

The Rytec Spiral® door portfolio includes models certified to withstand winds up to 175 miles per hourSee our hurricane-rated doors.

  • Special track design allows a door to fit with as little as 11 inches of clearance.
  • Innovative engineering uses a compact, variable speed motor to achieve opening speeds up to 60 inches per second within a smaller footprint.
  • Counterbalance system, patented spiral design and AC drive reduce wear and increase door longevity, with minimal preventative maintenance.1
  • SmartSurround® Advanced Detection & Alert System combines optical light curtains to monitor traffic and visual safety lights – all in one.
  • Advanced3 Light Curtain Safety System continuously monitors door opening.
  • Mechanical brake release lever allows door opening in the event of power failure.
SmartSurround light curtain detection & alert system

SmartSurround® Advanced Detection and Alert System

  • Advanced software features next-generation pattern recognition and traffic-sensing technology
  • 4-corner perimeter guard produced by artificial intelligence, optical light curtains and high-intensity LED signaling lights
  • Ideal for high-traffic areas where both vehicles and pedestrians are present


  • Double-walled, 6-inch, clear anodized aluminum slats
  • Integral weather seal between the aluminum slats
  • Heavy-duty hinge system for door panel assembly
  • Durable powder coated steel side columns and head console
  • Extension springs in side column


  • Insulated slats
  • Vision slats
  • Ventilated slats
  • Classic RAL and custom color match powder-coated finish
  • Electric reversing edge with Ry-Wi® Wireless System
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See the Spiral® LH® in Action

Designed for Applications with Low Headroom

Document Resources

Additional manuals and documents available in our Document Resource Center. Click here to browse.