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COSAW combines the simplicity of wheel and belt
conveyor designs into a zero pressure accumulator. As
one of the very first zero pressure conveyor designs,
this former Unex product provides proven reliability and
durability for a variety of applications for any product
conveyable on skate wheel. Its mechanical linkage makes
installation simple and easy to maintain.
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The 4' wide V-bottom belt eliminates shortcomings
associated with belt tracking and allows lengths up to
200 feet. Product weights up to 75 pounds per foot
moving at speeds up to 300 hundred feet per minute are
possible. Our standard unit features axle reinforcing
channels that prevent axle deflection making it ideally
suited for impact loading applications, such as high
speed pick lines. In addition, the standard wheel
capacity has been upgraded to 100 pounds each. The drive
allows for varying power requirements up to 2 horsepower
and more belt pull than many competitors.
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| Frame |
Width |
Wheels/Foot |
Drive |
Weight
Range |
Speed |
| 3-1/2 x 1-1/8" x 12 ga. Galv. Steel with
reinforced channels |
18" |
16 (100 lb. capacity) |
1/2 – 2 HP |
3# – 75# per foot |
45 – 300 FPM |
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| How the accumulation works |
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The 4' belt is supported by pressure wheels every
12". When the weight of a conveyed item causes the
sensing wheels to depress, two sets of pressure wheels
are lowered, disengaging the belt from the items in the
zone behind it.
When Box A rests on Sensing Wheel #1 (SW1), both sets
of Pressure Wheels #1 (PW1) will lower. Box C will then
come to a stop, depressing SW2, eliminating drive over
PW2 and causing Box D to stop.
When the case stop is lowered, Boxes A and B will
resume travel. When Box B clears Sensing Wheel #1, the
belt will re-engage Box C which will also resume travel.
When Box C clears Sensing Wheel #2, Box D will re-start.
This creates a 'singularity action' into accumulation
and when resuming transportation.
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| Component |
Specifications |
| Side Channels |
1 1/8" x 3 1/2" x 1 1/8" brake formed 12 ga.
Galv. |
| Cross Members |
12 ga. Galv., 5 per section |
| Center Bands |
1 1/8" x 14 ga. Galv. |
| Center Channels |
1 1/8" x 1 13/16" x 12 ga. Galv. (furnished as
standard) |
| Wheels |
16 wheels/foot, 100 lb. capacity |
| Spacers |
Galvanized steel, approx. .050" thick |
| Pressure Wheel Assemblies |
1/4" bolt and lock nut. |
| Adjustable Connectors |
18 ga. Galv. |
| End Assemblies |
5" dia. Molded plastic casters. Self-aligning,
relube type, precision grade bearings, mounted on
1 3/16" dia. Shaft. |
| Drives |
Center mounted, uses 4" belt; Minimum belt
wrap at 6", speeds up to 300 FPM, greater reducer
size flexibility |
| Belt |
4" wide, PVC 150, modified "A" section V-Guide
centered on PVC side, brush side
up |
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| Determining maximum length &
horsepower per unit |
| Maximum Unit Length = Length Limit x
Factor |
| Average Product Weight per Foot |
Length Limits Based on Product
Weight |
| 40 lbs. |
178 feet |
| 50 lbs. |
142 feet |
| 60 lbs. |
119 feet |
| 70 lbs. |
102 feet |
| Factor Based on Length Limit Due to
Speed & HP |
| Speed |
1/2 HP |
1 HP |
1-1/2 HP |
2 HP |
| 60 fpm |
x 1.0 |
x |
x |
x |
| 75 fpm |
x .92 |
x 1.0 |
x |
x |
| 90 fpm |
x .76 |
x 1.0 |
x |
x |
| 120 fpm |
x .57 |
x .76 |
x 1.0 |
x |
| 150 fpm |
x .46 |
x .61 |
x .92 |
x 1.0 |
| 200 fpm |
x .36 |
x .48 |
x .76 |
x .92 |
| 240 fpm |
x .28 |
x .38 |
x .57 |
x .76 | |
| Note: For different weights and speeds, please
consult COSveyor. |
Click here to match and order parts from our easy-to-read diagram.
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