‧VERTICAL LIFT - DM28VL

‧MAXIMUM DOOR HIGH:28'1"
‧RATED LIFTING WEIGHT PER DRUM: 1100LBS
‧MAXIMUM CABLE DIAMETER: 1/4"(6mm) 
‧SET SCREWS INSTALLED    
‧USE ON 1" SOLID SHAFT WITH 1/4" KEYWAY     
‧CABLE LENGTH FORMULA:
   FLOOR TO SHAFT CENTER+364" MINUS DOOR HEIGHT