Originally Published as: ASC Machine Tools
METAL OF HONOR AWARDS: 5
WEBSITE: www.ascmt.com
PHONE: 509-534-6600
Rollforming Roll-Up Door Components
A roll-up door system consists of three primary components that can be roll-formed: the panel curtain, the bottom bar, and the guide track.
1. Panel Curtain: The door curtain panels are produced on a post-cut rollforming line, which eliminates flare—an essential requirement for reliable seaming. The rollformer is equipped with a Cee-frame punching station that adds door-lock holes immediately prior to the post-cut shear. These lines are capable of producing panels for mini-storage doors as well as larger doors for garages, warehouses, and commercial buildings.
2. Bottom Bar: The bottom bar line includes a decoiler and a feeder/straightener tower that feeds material into a 3- to 4-station punching unit. All required holes are punched while the material is flat. From the punching unit, the material enters the rollformer, where the astragal is introduced during the forming process. A flying cut-off shear cuts the bottom bar to the required length.
3. Guide Track Rollforming Line: The guide track rollforming line configuration is similar to the bottom bar line. A modular punching unit punches all required holes and forms the notch at the top of the track. A flying shear at the end of the line cuts the track to length. These lines can produce mini-storage door track or commercial door track, depending on the application.
Seaming & Winding Station: The roll-formed panels and bottom bars are seamed together to a curtain on a seaming station. Afterwards the door curtain is transferred to the inline door winding station.
ASC Machine Tools, Inc. is a recognized leader in the design and manufacturing of Roll-Up Door Equipment. Since 1949, all of our equipment has been proudly made in Spokane, WA, USA.











































