Model 550
Compact Strength for Versatile Security Applications
The ADT Model 550 Rolling Shutter Door delivers reliable performance in a compact, durable design. Built with interlocking galvanized steel, stainless steel, or aluminum slats, this door is ideal for commercial and industrial settings that require secure closures with flexible operation. Its smooth, quiet movement and customizable finishes make it a versatile solution for a wide range of applications.
Description
Model 550 – Rolling Shutter Door
Applications
- Retail storefronts
- Service counters
- Mechanical rooms
- Light-duty industrial enclosures
Operation Options
- Manual lift
- Internal or external industrial motors
- Hand crank with gear reduction and removable handle
Technical Specifications
- Curtain:Interlocking slats, cold-rolled from hot-dipped galvanized steel; optional gray polyester enamel, 304 stainless steel (SF1), or extruded aluminum (SE1); minimum 22 gauge per ASTM A653
- Bottom Bar: Single steel angle (min. ⅛”) with lift handle and slide bolts
- Counterbalance: Helical torsion spring system housed in steel pipe, grease-packed, sealed ball bearings, 25% safety load factor
- End Brackets: Factory-painted steel (min. ⅛”) housing shaft and counterbalance
- Guides: Extruded aluminum channels (min. 2″ deep) with bolted removable stops
- Hood: 24-gauge hot-dipped galvanized steel with gray or bronze polyester enamel; includes intermediate supports
- Locking: Slidebolts with padlock provisions; motorized versions feature self-locking gears
- Finish: Rust-inhibiting enamel on non-galvanized surfaces; aluminum in mill finish
Features & Benefits
- Compact and durable design for versatile applications
- Weather-resistant bottom bar with secure locking options
- Smooth, quiet operation with sealed bearings
- Multiple material and finish options for tailored aesthetics
- Built for long service life and easy maintenance
Optional Features
- Baked-on gray polyester enamel slats
- Stainless steel slats
- Poly-cote® powder coating (200 select colors)
- Clear, bronze, or black anodizing
- Bent steel guides
- Perforated slat sections
- Weatherseal package
- Cylinder locks in bottom bar
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