Bifold Doors Page-3

• Two separate chain drives on all doors provide emergency backup chain - a safety feature no other competitor offers.
• All controls at one end of door eliminates walking to both ends of door to lock or unlock.
• Electrical controls use 110 volt control magnetic starters to eliminate high voltage at push button station and increase dependability of limit switches. Start, stop, or reverse at anytime.
• Photo sensor eye, a beam of light that if interrupted, when door is in motion, will cause door to stop.
• All gear motors equipped with an electric brake to guarantee to stop and hold door in any position.
• All lift cables and drive parts designed for minimum 5:1 safety factor.
• Integral motor and gear box unit: no unnecessary belts or chains for improved safety and dependability.
• Sun resistant soft rubber seals at top, bottom and sides of door to seal out weather.

• Switch on locks to prevent accidental operation of door in locked position.
• Improved wind truss helps remove aluminum elasticity for easy center pin removal under wind load.
• Lift cables do not travel through pulleys extending service life for years.
• All factory welded framing; no field welding for assembly of door.
• Self contained door with only top hinges attaching to building.
• Utilizes present building structure for economical installation.
• Maintenance free aluminum structure for framing. Less weight, more strength, no painting or rusting.
• Vertical sheeting by building company matches building, allows water to run off when door is open.
• Exclusive flush with floor wind load pin eliminates projection on floor in doorway when open.
• Wind drag pins prevent door from pulling away from building at all times.
• Surpass standard wind load requirements.
• UL and CSA approved.

• Complete framework: structural aluminum alloy 6061 J6.
• Welded shop and bolted field connections.
• Heavy duty bronze bushing or needle bearing guide rollers furnished on bottom of door at jamb location.
• Sun resistant soft rubber seals furnished on top, bottom and sides to seal out weather.
• Complete zinc plated steel hinges.

• Drive shaft and cable drums are steel tube galvanized or shop-coated with aluminum paint.
• Lock lever constructed of heavy duty steel tubing; lock cams are steel zinc plated or shop coated with aluminum paint.
• Lift cables are 3/16" aircraft galvanized steel in sufficient amount to give 5:1 safety factor.
• Bearings are sealed or have easy accessible grease fittings.

OPTIONS AVAILABLE:

DOOR OPERATION SPECIFICATIONS:

Auto Lock Mechanical Or Electric: Door automatically opens from locked position and relocks when closed at the push of a button.
Radio Control: Available with Auto Lock. Door can be controlled completely from 3 button palm size industrial rated transmitter.
Three Button Control: Magnetically held electric control switch with up, down, and stop positions.
Upper Override Disconnect: Electrically kills door, should door go beyond designed opening height.
Manual Backup: From the floor method of operating bifold door if power is temporarily lost.
Sensing Edge With Reverser: Electrical switch to immediately stop and reverse door travel if there is an obstruction.

Power Operator: All electrical controls are designed to meet National Electrical Code Section 513. Standard voltage is 240V single phase with any voltage or phasing available. Gear motor is equipped with an electric brake to guarantee to stop and hold door in any position of door travel. Magnetic starter with 110 volt control unit and a manually held push button control is standard. Heavy duty limit switch box is guaranteed "weather proof." All controls are pre wired and factory tested.
Lift Cables: Fastened to bottom of top hinge, transmitting forces directly to header of building relieving door of unnecessary stresses. Cables are fastened to cable drum at the bottom cord by a welding ring on drum, permitting drive shaft to have 1/4 turn of free play without danger of cutting lift cables. Cables do not pass through pulleys, thereby eliminating maintenance and extending cable life.
Drive Shaft: Mounted on bottom cord of door, running continuously along entire width. Attached to door frame with bearing mounts wherever there is a cable drum installed to minimize stress on shaft. The cable drums are an integral part of the drive shaft, guaranteeing an even lift of the door at all times.
Locks: All controls are at one end to eliminate walking to both ends to lock and unlock door.

FOR FURTHER INFORMATION CONTACT WILSON INDUSTRIAL DOORS

WILSON INDUSTRIAL DOORS
P.O. BOX 348
ELKHORN, WISCONSIN 53121
TELEPHONE: 414/723-6869
FAX: 414/723-6433

FOR INSTANT QUOTES OR SERVICE, CALL 1-800-558-5974 TODAY!