Rolling Steel Fire Doors

Mahon Door Underwriters rolling steel doors can be installed on openings requiring fire labeled closures. In the event of fire these doors will close automatically upon the melting of the fusible link, and/or release by smoke detection devices, and prevent the passage of flame and smoke. Thru wall fusible links are available as an optional item.

Under normal usage they operate with the same ease as service doors. Mahon Underwriters doors may be operated manually, by hand chain, by hand cranks or by motor operation.


U.L. Ratings
Labels are available on doors up to 120 sq. ft. with no greater dimension than 12’- 0” in width or height. Oversize certificates can be furnished for doors up to 576 sq. ft. with no greater dimension than 24’- 0” in width or height.

  • Class “A” LABEL: division of fire walls, 3 hour rating.
  • Class “B” Label: enclosures to vertical shafts, 1 1/2 hour rating.
  • Class “C” Label: openings in corridors or partitions, 3/4 hour rating.
  • Class “D” Label: exterior walls, severe exposure, 1 1/2 hour rating.

Underwriters Oversized Certificate
An underwriters certificate of factory inspection is furnished on all Mahon doors exceeding 120 sq. ft. in door area. This certificate certifies that the door was made in compliance with Underwriters Laboratories, Inc. requirements.

U.L. Listed Expansion Shields
Where required, Mahon can now furnish listed expansion shields for use on concrete jambs, also complies with NFPA 80 standards for fire doors and windows.

U.L. Listed Motors
When specified, Mahon can supply listed operators along with many optional electrical control devices. Ease of door operation makes motor operation a desirable option.

Models

RP Series Manual Operation
Operation for small doors, not recommended for doors exceeding 80 sq. ft. or 18'0" in height.

RC Series Chain Operation
Operation for medium to larger doors, a low cost method of operation utilizing endless hand chain and precision cut cast iron reduction gears.

RK Series Crank Operation
Operation for medium to larger doors, method of operation is through shafting and precision cut cast iron reduction gears.

RM Series Motor Operation
Recommended for all size doors when ease of, or remote operation is desired. This method of operation offers many optional control features.

See “Rolling Fire Door Product Specifications” Page for more information about optional features and finishes.

Slats
The Mahon Slat #3 is standard with fire doors; slat #4 (insulated) and slat #5 (flat slat) are optional items, and will be supplied if specified. All slats furnished in gauges as specified by U.L., heavier gauges when specified will be furnished as an optional item.

SLAT

HEIGHT

DEPTH

MATERIAL

APPLICATION

#2

2"

11/16

22 & 20 Ga. steel, stainless steel, and aluminum

Available as replacement slats or special construction

#3

2 7/8"

3/4"

22, 20, 18 and 16 Ga. steel, stainless steel, and aluminum

Service and labeled doors medium to large openings

#4

2 3/8"

3/4"

22, 20, or 18 Ga. steel exterior - 24 Ga. steel interior with insulation

Insulated doors, all sizes

#5

2 9/16"

5/8"

22, 20, and 18 Ga. steel, stainless steel, and aluminum

Service and labeled doors small to large openings



Please contact us at 1-800-826-3667 for some personal touch to help with all your rolling door needs.


Mahon Door Corporation
24200 Gibson St.
Warren, MI 48089
Phone: (800) 826-3667
Fax: 586-757-7783
Web site: www.mahondoor.com