Features

  • Corrugated top sheet assembly forms a strong torque cylinder for strength and easy operation, and conceals the spring mechanism.
  • Corrugated door curtain, available in round or square profile, is hot-dipped, galvanized 26-Ga. steel, primed then finished with high gloss silicone polyester paint.
  • Polypropylene anti-wear strips come factory-installed as continuous guides for sliding metal parts, providing quieter operation and longer service life.
  • Axle casting assembly holds constant door tension, and allows easy adjustments. Heavy-duty steel bracket plates rigidly support axle, spring and door.
  • Drum wheel is deep-drawn galvanized steel with 1-5/16" steel bearings.
  • Bottom bar assembly includes heavy-duty steel angle, extruded aluminum bottom bar and replaceable tubular-type vinyl astragal.
  • Slide-bolt assemblies made of heavy-duty steel lock the closed door from inside at the bottom corners. For added security, both slide bolts accept padlocks. An exterior sliding curtain lock also is available.
  • Roll-up door guides are 14-Ga. galvanized steel, 2" wide. DS-200 guides install to masonry, steel or wood construction equally well.
  • Automatic door stops prevent door from rolling up past the header.
  • Tempered steel springs are engineered to counterbalance different door sizes and weights for smooth, easy operation and long service life. Both springs are clip-welded to the axle for correct location and extension.
  • Heavy-duty steel axle supports door curtain and counterbalance system.