631 Series


The 630 Series FireKingTM rolling steel, fire-rated service door offers superior protection wherever a listed fire door is required for a larger size door opening (max. width 41’2”’; max. height 25’4”).The 630 Series door is designed for masonry mounted applications including: facilities with paint booths, file rooms, material storage locations, warehouses, shared walls between businesses, public record storage, and public buildings such as libraries. Customized fire doors are available for conveyor openings.

These doors feature a mechanical auto resettable hoist (non-motorized) that enables easy drop test and reset of the fire door in just seconds. Fusible links are mounted on both sides of the wall that separate to automatically close the door in case of fire. Additional safety and protection features are available, including: Fire Sentinel® time-delay release device, FireLite® vision lites, smoke detectors, horns, and strobes.

Max Width

24’0″ (7315.2 mm)

Max Height

24’0″ (7315.2 mm)


Galvanized or Stainless steel, in a variety of gauges
Slat profile available in curved or flat
Standard finish available in gray, tan, white or brown

Labels available for masonry or non-masonry applications

UL 1-1/2 hr (FM is optional)
UL/ULC 3 hr (FM is optional)
UL 4 hr
UL oversized door (FM is optional)

NFPA-80, New York City and state of California (CSFM) compliant

Mechanical Auto resettable hoist (non-motorized)

Enables easy drop test and reset of fire door in seconds

Fusible link for added safety

Fusible link separates at 165°F (74°C) to automatically close the door in case of fire

Viscous governor technology

Controls rate of door descent during a fire while reducing noise and vibration for quieter door operation

Innovative planetary gear design

Ensures years of reliable service and drop-out performance