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 FireKing® Fire Door Model 634 


Fire-Rated Doors - 634 Series 

The FireKing® Model 634 fire-rated rolling 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 Model 634 rolling steel fire door is designed for masonry and non-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. The Model 634 fire door is available with a UL 4 hour label or UL oversized door label.

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

41’2” (12548 mm)

Max height

25’4” (7722 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


Three structural steel angles with minimum thickness of 3/16 inch (5 mm) for doors over 12' (3.65 m) wide or high
Guides for between jamb doors shall be structural angles
PowderGuard™ Weathered finish with black powder coat

Labels available for masonry or non-masonry applications

UL 4 hr
UL oversized door

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


24 month limited warranty on door
3 year/20,000 cycle limited on door & RHX® operator system (when purchased together)

Standard colors

color swatch whitecolor swatch browncolor swatch TANcolor swatch GRAY

Actual door color may vary slightly from the digital representation above. Color samples are available by request through your local Overhead Door Distributor.

  • Operation: push-up, chain hoist, crank and electric motor (RHX® FK, RHX® or RSX®)
  • Fire Sentinel® time-delay release device
  • FireLite® vision lites
  • UL-listed brush-type smoke seals
  • Flame baffle system (required for optional FM label)
  • Photoelectric or ionization-type smoke detectors
  • Horns and horns with strobes
  • Cylinder locking bottom bar with mortise cylinder
  • Wind load (FBC, TDI, Miami-Dade)
  • PowderGuard™ finish offers a full spectrum of up to 215 colors as well as color-matching to specification