Calculating
Reel Capacity
SHIPPING
REEL CAPACITY
While it is virtually impossible to calculate the precise length
of wire rope that can be spooled on a reel or drum, the following
provides a sufficiently close approximation.
| where: |
|
| L
= |
length
of rope (ft) |
| A
= |
depth
of rope space on drum (inches) |
| B
= |
width
of drum between flanges (inches) |
| D
= |
drum
barrel diameter (inches) |
| K
= |
constant
for given rope diameter
(see table below) |
| x
= |
clearance |
|
 |
"K"
FACTORS**
(0.2618 divided by rope diameter (squared)
Diam
(inches) |
K |
Diam
(inches) |
K |
Diam
(inches) |
K |
| 1/16 |
49.8 |
1/2 |
0.925 |
1-3/8 |
0.127 |
| 3/32 |
23.4 |
9/16 |
0.741 |
1-1/2 |
0.107 |
| 1/8 |
13.6 |
5/8 |
0.607 |
1-5/8 |
0.0886 |
| 5/32 |
8.72 |
11/16 |
0.506 |
1-3/4 |
0.0770 |
| 3/16 |
6.14 |
3/4 |
0.428 |
1-7/8 |
0.0675 |
| 7/32 |
4.59 |
13/16 |
0.354 |
2 |
0.0597 |
| 1/4 |
3.29 |
7/8 |
0.308 |
2-1/8 |
0.0532 |
| 5/16 |
2.21 |
1 |
0.239 |
2-1/4 |
0.0476 |
| 3/8 |
1.58 |
1-1/8 |
0.191 |
2-3/8 |
0.0419 |
| 7/16 |
1.19 |
1-1/4 |
0.152 |
2-1/2 |
0.0380 |
* This
formula is based on uniform rope winding on the reel. It will
not give correct results if the winding is non-uniform. The formula
also assumes that there will be the same number of wraps in each
layer. While this is not strictly correct, there is no appreciable
error in the result unless the traverse of the reel is quite
small relative to the flange diameter ("H").
** The
values given for "K" factors take normal rope oversize
into account. Clearance ("x") should be about 2 inches
unless rope-end fittings require more.
TOP
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5250 River Road
Cincinnati, OH 45233
Phone: (513) 941-2443
Fax: (513) 941-2445
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