| Three ways to couple the hexagonal beam to your mast |
Specializing in Hexagonal Beams for the DX Enthusiast
1. Use of the regular base plate flange
2. Use of the optional large base plate flange
This arrangement is generally right for a rotator that is in the top of a tower or a roof
mounted arrangement such as those sold by Glenn Martin.
The base plate shown here is equipped with the optional large flange on the bottom to fit
a larger mast size of 1.9 inches instead of the regular flange.
Note the use of a cross bolt on the flange to prevent "free wheeling" of the beam which
will occur eventually if you rely only on the two small set screws in the flange to hold it to
the mast.
mounted arrangement such as those sold by Glenn Martin.
The base plate shown here is equipped with the optional large flange on the bottom to fit
a larger mast size of 1.9 inches instead of the regular flange.
Note the use of a cross bolt on the flange to prevent "free wheeling" of the beam which
will occur eventually if you rely only on the two small set screws in the flange to hold it to
the mast.
| 3. Use of a mast adapter |
You can easily fashion an adapter that will make your mast fit into the standard base plate provided with the
KIO hexagonal beam. A simple iron pipe "nipple" obtained from the plumbing section of a hardware store
along with the bolts shown below is all you need plus some simple drilling work.
Note the use of a cross bolt on the flange to prevent "free wheeling" of the beam which will occur eventually
if you rely only on the two small set screws in the flange to hold it to the mast. The small pipe shown is a
one inch galvanized pipe nipple obtained from Home Depot or Lowes. Here, one end is shown sawn off
and it is a perfect fit into the KIO hexagonal base plate bottom flange.
KIO hexagonal beam. A simple iron pipe "nipple" obtained from the plumbing section of a hardware store
along with the bolts shown below is all you need plus some simple drilling work.
Note the use of a cross bolt on the flange to prevent "free wheeling" of the beam which will occur eventually
if you rely only on the two small set screws in the flange to hold it to the mast. The small pipe shown is a
one inch galvanized pipe nipple obtained from Home Depot or Lowes. Here, one end is shown sawn off
and it is a perfect fit into the KIO hexagonal base plate bottom flange.
(Large Flange)
Most push up masts are a perfect fit for our standard baseplate flange. These masts must be
guyed properly, usually every ten vertical feet with three guys at each point and extending out the
same distance from the base as the height of the mast.
Note the use of a cross bolt on the flange to prevent "free wheeling" of the beam which will occur
eventually if you rely only on the two small set screws in the flange to hold it to the mast.
The entire push up mast can be rotated from the bottom if you fashion an arrangement to mount
the rotator to a stationary base of some sort. See a crude example of one of such arrangement
here.
Alternatively, you can mount the rotator at the top of the push up mast and get by with an
inexpensive TV rotator but this adds weight to the entire arrangement adding to the difficulty of
pushing the whole thing up.
guyed properly, usually every ten vertical feet with three guys at each point and extending out the
same distance from the base as the height of the mast.
Note the use of a cross bolt on the flange to prevent "free wheeling" of the beam which will occur
eventually if you rely only on the two small set screws in the flange to hold it to the mast.
The entire push up mast can be rotated from the bottom if you fashion an arrangement to mount
the rotator to a stationary base of some sort. See a crude example of one of such arrangement
here.
Alternatively, you can mount the rotator at the top of the push up mast and get by with an
inexpensive TV rotator but this adds weight to the entire arrangement adding to the difficulty of
pushing the whole thing up.
| Coupling of the hexagonal beam base plate to a rotator mast |
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Sales & Support: 1-888-694-3923 (Toll Free)
E mail: kio@k4kio.com
Sales & Support: 1-888-694-3923 (Toll Free)
E mail: kio@k4kio.com
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Coupling of the hexagonal beam
base plate to a push up mast
base plate to a push up mast
2 1/2 X 1/4 hex bolt
(cust. supplied)
(cust. supplied)
1 1/4 inch O.D.
Push up Mast
Push up Mast
Rotating ring for
guy ropes
guy ropes
| Drill 5/16 " hole across the throat of the flange with the mast inserted, for cross bolt |
| Drill 3/8 " hole across the throat of the flange with the mast inserted, for cross bolt |
Fits into rotator
| 1.9 inch O.D. Sch 80 aluminum pipe with 0.2 inch wall (onlinemetals.com) |
3 X 5/16 hex bolt
(cust. supplied)
(cust. supplied)
Adapter for fitting large mast to
regular base plate flange fitting
regular base plate flange fitting
| Drill a 5/16" hole across the throat of the flange with the adapter as shown to the right inserted. Then insert a 2 1/2 X 1/4 hex bolt (cust. supplied) |
Large Mast / Small Pipe Adapter
| Masking tape to keep small pipe centered in large pipe while drilling holes |
| 1 inch galvanized pipe nipple (1.25 in. O.D.) |
5/16 inch holes drilled 120
deg. apart from each other
deg. apart from each other
| 2 1/2" X 1/4" hex bolts with lock washers, flat washers and nuts |
Large mast to
fit into rotator
fit into rotator
KIO Technology