100 Manual Push-Up Operation
200 Chain Operation
400 Motor Operation, Bracket Mount
500 Motor Operation, Side Mount
102 Manual Push-Up Operation, Between Jamb, Under Lintel Mount
202 Chain Operation, between Jamb, Under Lintel Mount
203 Chain Operation Thru-Wall Chain Hoist
Southwestern rolling steel doors roll up into a compact hood, occupying a minimum of overhead space. Heavy construction promotes security, durability and low maintenance. The standard installation mounts on the face of the wall but may be adapted for special job requirements
Manually-operated doors and may be mounted to face of wall inside or outside of building or between jamb. Not recommended for openings over 7’4″ high or more than 80 square feet.
Considered industry standard, the chain-operated door uses a hand chain and reduction gears.
The basic motor operator consists of a motor and single-reduction worm-gearing with gears completely housed and running in an oil bath.
Wall Mount: Motor operator mounted directly to the wall. This is the most desirable installation when adequate side room is available.
Bracket Mount: When sufficient side room clearances are not available, the operator can be mounted on a special bracket in front of hood.
Slats are zinc-coated cold rolled steel (22 gauge minimum, 18 gauge maximum. Slat “B” with a high curved crown offers maximum horizontal rigidity. Slat “F” is used when a flat surface is desired.
Door guides, assembled of structural steel angles, form a curtain-retaining channel which may be mounted on any type of jamb or wall.
END LOCK & WIND LOCK:
End locks are standard on all doors, fastened with a minimum of 2 rivets. Wind locks maybe provided to meet our standard wind load of 32psf.
The bottom of the curtain has a rubber compressible weatherstrip to contact the floor. For motor-operated doors, this weatherstrip may be replaced with an electric reversing sensing edge.
Both chain-operated and manual push-up doors are equipped with a slide bolt on bottom bar. Motor-operated doors omit slide bolts and rely on the motor operator brake system.
VISION PANELS (OPTIONAL):
Vision cut-outs using clear lexan panels are available. The standard size is 3/4″ tall x 6″ long spaced 5″ apart. Lexan is optional or can be left open for airflow.
AUTOMATIC BOTTOM BAR:
An electric sensing edge, mounted on the bottom of the curtain is connected to the electric operator controls so that when the curtain contacts an obstuction the electric operator stops and reverses the door. The standard connection to the electric operator is via a coiled cord. Connection via automatic take-up reel is available at additional cost.
TECHNICAL SPECIFICATIONS FOR STEEL SERVICE DOORS
Curtain shall be made of interlocking, roll formed slats fabricated of cold rolled 22 gauge minimum steel, hot-dipped galvanized (1.25 oz. of zinc per sq. ft. of flat metal per ASTM standards), before being formed. Slats shall be curved or flat. Curtain shall be of sufficient strength to withstand 32 psf wind pressure. Malleable end locks shall be fastened to each slat with a minimum of 2 rivets. The bottom of the curtain shall be equipped with two angles, mounted back to back securely fastened for reinforcement and for sill or floor contact. Astragal shall be attached to bottom of curtain angles to seal door to floor.
Hood shall be constructed of galvanized sheet steel not less than 24 gauge, formed to fit contour of curtain roll. Hoods shall be reinforced at top and bottom edges by structural steel angle.
Barrel shall be of steel pipe, and shall be adequate to carry door weight with deflection not to exceed 0.03 inches per foot of door width. Door shall be counterbalanced with oil tempered, helica torsion springs with a minimum of 20,000 cycles.Spring tension shall be adjustable by exterior adjusting wheel, accessible from the outside without removing the hood.
All gears shall be of high-grade cast iron, made from machine-cut patterns. For chain-operated doors, gears shall be designed so that maximum pull required will not exceed 35 pounds.
Main support bearings shall be permanently lubricated, sealed ball bearings
Door guides shall be fabricated of structural steel angles not less than 3/16″ thick. Angles shall be bolted together to form a channel guide for curtain. Guides shall be fastened to the wall by lag screws or machine bolts not less tan 3/8″ diameter, spaced not more than 30″ apart or welded in place.
Brackets shall be constructed of malleable steel plate of sufficient thickness to support weight of curtain and barrel assembly and designed to form an end closure support of the hood. Drive bracket shall be equipped with permanently lubricated, sealed ball bearing.
Curtain and hood shall be hot-dipped galvanized and phosphate-treated for paint adherence. Curtain shall have a two-coat baked-on prime finish. All other parts shall have one coat of rust-inhibitive shop primer.
All materials and workmanship shall beguaranteed for a period of one year from installation date.
We can send shop drawings for any of products upon request.