Re: Step Decks On Grizzly Feeders
THANKS ,for the info George. the biggest problem with vibrating grizzlys i have seen over the years is not enough taper on the bars . some grizzlys don't have enough height under the bars where the cross members are. which causes bridging also. if you have a 6" opening, you should have 12" of elevation above the cross members . we have rebuilt several grizzlys with this problem . ■
Re: Step Decks On Grizzly Feeders
here is a real good example of not enough taper. also not enough clearance below the bars.
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Kasey
You know Kasey........you are dead on. By being higher over the CROSS MEMBER that the grizzly bars sits on......we REDUCE the chance of long CARROTS....of blast rock.....which are sliding down the bars til they hit the CROSS MEMBER then STOPS AND PLUGS.
iF HIGHER.......THIS situation lessens.
The pic is XL....but, does not appear to me....to have a wear bar strip ontop of it. DOES IT? We typically weld a 2 inch abrasive resistance steel flat bar and or a 2" diameter A/R round bar on which can be cut off and replaced easily when needed.
ANOTHER KEY point: The bars should be tapered on the feed end...and gradually getting wider going down to the discharge end of say a 5 or 6 foot long grizzly bar.
The other important point......is the grizzly bar must also be TAPERED from the TOPSIDE TO the UNDER OR BOTTOM SIDE. Wider on bottom vs top......to material that is wedge shaped can pass vs JAM.
Don't be afraid to use HEAVY RUBBER SECTIONS.......It works and works extremely well......much better than grizzlies and the rubber will take a BEATING NO PROBLEM.
Wishing you good vibrations in the new year. ■
Step Decks On Grizzly Feeders
WHY?
1. You can make these feeders with a straight abrasive resistant lined pan which discharges onto a grizzly bar section on the same plane or level as the pan. Which by the way, most people end up doing.
OR
2. You can make these with STEP DECKS...which is with the grizzly bar segment on a lower level than the pan, say be 6" or so and if another grizzly segment follows......that lower than the first by 6".
3. REASON? First, the grizzlies are there to bypass the sand or fines (-4") on a blast rock operation. By stepping the grizzlies, we actually TUMBLE, ROLL or FLIP the material over, EXPOSING all material to all surfaces......IT IS in fact more efficient, to keep unwanted fines out of MR. CRUSHER.
OTHER: Many people install, HEAVY RUBBER sections with 4" diameter holes with SELF RELIEVING UNDERSIDE of holes which work beautifully. You get to eliminate that extra 1- 1 1/2 hours of SLEDGE HAMMER POUNDING WORK to try to clear the ROCKS stuck in the GRIZZLY BAR OPENING every nite. It works too.
Traditional thinking typically has people NOT trying this fix. ■