Security Barriers

Security barriers are custom made to your specifications. Below are the most typical types we offer. Due to setup times required for various types the unit pricing can vary widely - please contact us for a quote.

tony@k-tmfg.com

Typical lead-time is 3-4 weeks but can vary depending on material and construction details.

Security barriers are custom products - not returnable.

Frame Options
Angle Frame 2-1/2" x 2-1/2" x 1/4" angle iron frame.
Welded continuously at corners.
OPTIONS: Other sizes of angle iron, corners filled in, bolt holes.
TYPICAL APPLICATION: Mounting in metal deck or roof framing (bolted or welded) or bolted to wall with masonry anchors.
Flat Frame 2" x 1/4" flat steel frame.
Welded continuously at corners.
OPTIONS: Other flat sizes.
TYPICAL APPLICATION: Mounting in ductwork or other framing. Can be used to add security bars to existing sleeves or grilles.
Sleeve 3/16" steel sleeve continuously welded with 1" x 1" x 3/16" angle frame factory welded to one end. Furnished loose on other end for field welding.
OPTIONS: Sleeve gauges, angle frame size, loose angle frame for field bolting, collar length, both angles welded. TYPICAL APPLICATION: Mounting in existing opening, one angle frame loose for field mounting (weld or bolt). Allows for duct connections on both sides. Can also be poured in place or set with block if both angles factory welded.
Bent Flange 3/16" steel sleeve with bent flanges. Sleeve continuously welded.
OPTIONS: Sleeve gauges, flange height, corners filled in, masonry anchor rods, one side flanged.
TYPICAL APPLICATION: Poured in place or set with concrete block - new construction only.
Flanged Sleeve  3/16" steel sleeve with 3" x 1/4" flat bar welded 1" from one end.
OPTIONS: Sleeve gauge, flat bar gauge and location, bolt holes.
TYPICAL APPLICATION: For welding or bolting to wall - one side only - allows for duct connections on both sides of wall.
Bar Options
Type 1 1/2" diameter H.R.S. bars.
6" O.C. both ways.
Welded to frame and at cross points.
OPTIONS: Other bar sizes and spacing. Other materials.
Type 2 1/2" diameter steel case hardened to Rockwell C-60, .060" minimum effective case depth
6" O.C. both ways.
Bars welded to frame and at intersections.
OPTIONS: 7/8" and 1" bar sizes, other spacing.
Type 3

3/4" diameter H.R.S. vertical bars 6" O.C. 2" x 1/4" flat steel horizontal bars 8" O.C. All bars welded to frame and at cross points.
OPTIONS: Other bar sizes and spacing. Other materials.