Something for the small operator

its no good for what i want, thats not a continuous reverse spiral riffle. maybe you could fill in all their riffles with something like a fiberglass bondo and gel coat it then glue the extruded rubber riffle to the gel coat surface. thats probably the easiest and cheapest way to do it. im probably going to need atleast 8 of them. now we just need to get a good look at the profile of their extruded riffle
 

its no good for what i want, thats not a continuous reverse spiral riffle. maybe you could fill in all their riffles with something like a fiberglass bondo and gel coat it then glue the extruded rubber riffle to the gel coat surface. thats probably the easiest and cheapest way to do it. im probably going to need atleast 8 of them. now we just need to get a good look at the profile of their extruded riffle
Can extruded rubber riffle be spiraled (attached) on a wood base or metal base?
 

im pretty sure they just use rubber cement to glue it their abs bowl
If it is a tight fit maybe super glue would be better?
Like gluing mats together.
 

the moderators wont let me post a link right now but i found a reverse spiral bowl for $200, it wont have the right profile but you could glue a extruded rubble riffle to it
 

the moderators wont let me post a link right now but i found a reverse spiral bowl for $200, it wont have the right profile but you could glue a extruded rubble riffle to it
Wow at least it is out there to use for a build. Thanks.
 

click on the other members link and when you get you there just search neffco bowl and youll see its $200
Not sure the link will work for a search of neffco bowl????
 

Last edited:
Neffco bowl:
Manufacturer Ratings *

Weight: 165 lb.

Dimensions: 38″ x 38″ x 25″ high

Feed size: 1/8 minus

Feed rate: 10% of slurry

Water rate: 80-100 GPM

Gold recovery to 400 mesh

Feed Size: 1/8 Minus

Feed Rate: 10%

Water Rate: 80 to 100 GPM
Gold Recovery: to 400 Mesh

With Feed Trough

Test results are as follow:

100-minus mesh(150 micron) to 200+plus(75 micron)………….94% recovery rate.

200-minus(75 micron) to 400+plus(37 micron)……………………84% recovery rate.

400-minus(37 micron)………………………………………………………62% recovery rate.

Feed was ran at the rate of 1 ton per hour.

Found someone in Oregon that sells however the cost is high.
 

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the moderators wont let me post a link right now but i found a reverse spiral bowl for $200, it wont have the right profile but you could glue a extruded rubble riffle to it
Do you have info about different profiles?
Thanks.
 

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