Automatic Door Bottom #367 Data Sheet

Our automatic door bottoms utilize a flat spring mechanism, which activates when the door is closed, lowering a neoprene seal insert against the floor or saddle. A protruding, hinge-side "plunger" is compressed by the frame as the door closes to activate the spring. The seal then drops in a scissors like motion from the hinge side, adjusting to the floor from a pivoting point. This motion ensures a smooth drop without drag for a tight seal, even on an uneven floor. As the neoprene seal compresses, it forms a tight, secure seal against the saddle or floor. The seal reacts automatically as the door is opened.

• Class 1 fire rated
• Maximum 1" drop
• Available in lengths from 12" up to 60"
• Can be field cut up to 2 ½" from stock lengths without interfering with mechanism operations
• Standard aluminum finish
• Options for a dark bronze anodized or simulated bronze
• anodized finishes are available
• Reversible - same door bottom is used for left or right-handed doors