High Security and High Speed
for Low Headroom.

With an opening speed of up to 60 inches per second, Rytec's Spiral® Low Headroom door offers the speed you need for high-traffic situations while meeting the low headroom requirements of parking garages and other commercial structures. Rigid, aluminum slat construction eliminates any need for a second overnight security door and the rubber weatherseal provides a tight seal.

Crisp lines give the Spiral LH door a stylish look that’s great for all kinds of parking and other commercial, institutional and residential applications. Because its anodized aluminum slats will not corrode, you can count on that look to last for many years even under the worst weather conditions.

High-Security

Rigid, aluminum slat construction and optional, integral
locking system provides unparalleled security.

Low Headroom

The low lintel design requires only 11 inches of headroom clearance.

Whisper Quiet

The unique Spiral roll-up design features no metal-to-metal contact, therefore offering whisper-quiet operation.

High Performance

The variable speed AC Drive system with soft
acceleration and braking smooths out routine stops and starts, virtually eliminating the clunking gear engagements associated with typical overhead door operation.

Energy Efficient and Tight Seal

Aluminum slats, along with a durable rubber membrane which covers their aluminum connecting hinges, provide a 100% seal against dust pollution, drafts, and inclement weather. Optional insulation simply adds to the energy savings.

CONTROLLER

System 3® Door Controller (Standard)

Incorporating state-of-the-art motion control technology, the System 3 controller combines the flexibility and performance of AC Drive technology with the ease and precision of digital control.

ACTIVATORS

The System 3 door controller is designed to operate with many different types of activators, depending on the application and operating environment.

Floor Induction Loop (Optional)

Activation loops embedded into the concrete on both sides of the doorway substantially reduce operator error in opening and closing doors. With no moving or exposed parts, floor induction loops are extremely reliable.

Motion Detectors (Optional)

Motion detectors operate on microwave technology. They detect pedestrian and vehicle motion in a prescribed area. The detector sends a signal to the controller to open the door.

Presence Sensors (Optional)

Presence sensors detect pedestrians and vehicles in the area of the detector. Motion is not necessary. The sensor signals the controller to open the door.

Radio Controls (Optional)

A radio control consists of a transmitter and a receiver. The vehicle operator activates the transmitter which sends a signal to the receiver. The receiver then signals the controller to open the door.

Push Button (Optional)

The push button is generally used with pedestrian traffic and is typically mounted on the wall near the door. Pedestrians push the button as they approach the door, which signals the door to open.

Pull Cords (Optional)

The pull cords are switches mounted on the ceiling. Pedestrians and vehicle operators pull the cord as they approach the door, signaling the controller to open the door. Vehicle operators generally have to slow down to pull the cord.

Multiple Activators (Optional)

The System 3 door controller permits many activators to be used in multiple combinations. For example, a door can be opened by forklifts through induction floor loops and by pedestrians through a push button, each with independent closing times to allow for pedestrians passing through the door.

Door Panel Options

Optional insulation and clear polycarbonate windows available.

Side Frame Options

Optional stainless steel package available.

Airlocks

In airlock applications, one controller with various activators permits doors to be interconnected so only one door is open at a time.

Powder Coating

Optional powder coating to RAL standard colors.

Specifications

Subject to change

Model

Rytec® Spiral® LH Door

Standard Size

Up to 19 feet 8 inches wide by 16 feet 4 inches high.

Door Panel

Double-walled aluminum slats are 6 inches high by 3/4 or 1 3/16 inches thick. Integral rubber weatherseal between each panel. Optional insulation and clear polycarbonate windows.

Side Frames

Galvanized steel side frames with full-height weatherseal on both sides to seal against door panel. Dual electric photo eyes are standard. Optional stainless steel package available.

Counterbalance

Up to six extension springs in each side column, depending on the size of the door. The springs assist the motor in opening the door. Mechanical egress lever on side column allows door to be opened in the event of a power failure.

Bottom Bar

Extruded aluminum bottom bar with control-reliable, electric reversing edge.

Drive System

2 HP, 208 Volt or 230/460 Volt, three-phase motor with variable speed AC Drive which allows for soft acceleration and braking.

Electrical Controls

System 3® controller housed in a NEMA 4 rated enclosure with factory set parameters. Self-diagnostic features and a two-line, 32-character LCD display in English, Spanish or French provide quick and straightforward installation and control adjustments. Programmable inputs and outputs accommodate special control applications without the need for additional electrical components.