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STANDARD ALUMINUM CANTILEVER GATE SPECIFICATIONS
FOR OPENINGS Up To 24 FT
The gate frame will be fabricated from a minimum 2" x 3" 6063-T6 alloy with
a .125" wall thickness. Intermediate vertical members will be 2" square x
.125" wall tubing. Structural members will be wrap-fillet welded 95% of
their circumference, allowing a seep hole for condensation to escape. The
gate frame will be of all-welded construction. A one- piece 6061-T6 alloy
extruded track will be welded to the gate frame to form a rigid connection
to it. The track will weigh no less than 3.60 pounds per linear foot. The
gate will be braced by 1" square x .090” wall tubing members between all of
the vertical members, including the counter balance section. Vertical
members on the gate will not exceed 7-ft. centers.
Two truck assemblies, one on each gate support post, will support the gate
and track system. The body of the truck assembly will be constructed from
extruded 6061-T6 aluminum. The truck assembly will have four 2” diameter,
9/16" wide, sealed ball-bearing wheels. One side-thrust guide wheel will be
located on each end of the truck assembly to ensure proper alignment of the
truck assembly within the track. The truck assembly will be supported by a
self-aligning 5/8" rod-end that connects to the hanger bracket using two
5/8-18 nuts. The hanger bracket will be constructed from 6" x 4" x 1/2" A-36
steel angle iron. The finished 6.25" long bracket will receive either 4"
round or 4" square u-bolts.
One standard bottom guide assembly will be supplied for each support post.
The standard bottom guide assembly will be constructed from an aluminum
bracket that will incorporate two 3.5" diameter natural rubber guide wheels
with a 1.25" contact surface. The wheels will be attached to the brackets by
3/8" zinc-plated axle bolts. Elongated holes will be provided in the bottom
guide bracket to allow proper leveling of the gate as it passes between the
guide wheels.
The two gate support posts will be 4" OD Schedule 40 posts, or two 4" x 4"
square tube posts with no less than a 3/16" wall thickness. A third post for
the gate catch will match the support posts. Minimum length of the posts
will be equal to the gate height plus 4'. All posts will be provided by
others and installed in a vertically plum position with a minimum of 3.5'
below grade, encased in a minimum 0.25cubic yards of concrete. Spacing for
posts will be determined from the counter balance chart provided by A&E.
Gates, truck assemblies and hanger brackets carry a five-year limited
warranty, which will cover all defects in material and workmanship, provided
that the installation of these components is performed in a proper manner,
within the guidelines established by A&E.
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