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P R O D U C T H A N D B O O K
Suggested minimum cleat
height for various sized
materials and degrees
of incline
This chart assumes that material being conveyed
has a 30° natural angle of repose. For rounded
or free-fowing materials with a natural angle of
repose of less than 30°, use the cleat corresponding
to the next higher material size. (For example, if
your material is 4” high, with a natural angle of
repose of less than 30°, and your belt incline is 40°,
you would use a 3” cleat — that is, the cleat size
corresponding to 5” material.
Suggested cleat spacing
This chart assumes that material being conveyed
has a 20° dynamic angle of repose (30° natural
angle of repose) and that cleats are installed at a
right angle to the belt edge. For more free-fowing
material, use slightly closer cleat spacing.
Cleat Height
Size of Material
8”
6”
6”
6”
6”
7”
6”
6”
6”
6”
6”
4”
4”
6”
6”
5”
3”
3”
4”
6”
4”
2”
2”
3”
4”
3”
1 ½”
1 ½”
2”
3”
2”
1”
1”
1 ½”
2”
1”
⅝
”
⅝
”
1”
1 ½”
½”
⅝
”
⅝
”
⅝
”
1”
30°
40°
50°
60°
Belt Incline
Cleat Spacing
Cleat Height
6”
35”
28”
21”
15 ¾”
4”
23”
18 ½” 13 ½” 10 ½”
3”
17”
13 ½”
10”
8”
2”
12”
8 ½”
6¼”
5”
1 ½”
8 ½”
6”
5”
4”
1”
5 ½”
4 ¼”
2¾”
2 ½”
⅝
”
4”
2 ¾”
2”
1 ¾”
30°
40°
50°
60°
Belt Incline
Type
Cleat Pattern
Return Rolls
Recommended
IN TROUGH
SPLIT ROLLS
Where Cleats are
needed only to lock
material in place on
the conveyor.
STAGGERED
SQUIRREL CAGE
Where drain-off of
liquids presented
special problems.
ACROSS BELT
WIDTH
SELF-CLEANING
Where incline is steep
and/or material has
high flowability – as
with large, round
or uniformly sized
material.
CURVED
STANDARD RETURN ROLLS
Where increased load
capacity is required
with a given belt
width, trough, and
incline.
SPLIT
RUBBER-DISC
Where drain-off is a a
problem, and rubber
disc-type rolls are
available.
CHEVRON
STANDARD RETURN ROLLS
Where drain-off
is a problem, and
standard solid return
rolls are used.
Tatch-A-Cleat
®
Cleat patterns
When choosing
cleat installation
patterns, you should
give major consideration to the type of return
support which is available or feasible.
Where conveyor pulley center distances are 15 feet
or less, it is often possible to omit return rolls safely.
Where the curved or chevron pattern is used with
standard return rolls, cleats should be arranged so that
they provide a set of continuous contacts between cleats
and rolls. On drives using pulleys less than 6” in diameter,
curved or chevron patterns should not be used.
The ends of cleats mounted in a curved pattern should
be tapered to lead smoothly onto return rolls.
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