Making the jaw crusher gap smaller | Jaw Rock Stone Crusher

[@chrisobergin3955]

The bolts you loosened above the built in wedges are supposed to draw them up to close the gap on the lower portion of the jaws.

[@dalegunn9434]

I take it you can no longer draw the factory wedges higher up and as those wedges are already pre shaped you would do better installing flat packers in there - less likely to get spat out. Usually when you can't get down to 65 the jaw plates have become so worn that the gap cannot be closed and those one's look very worn - lifting them out to rebuild or replace can be a real pig as well as you know those bolts are going to be hammered tight Good to see you have the right rotation as so many people unknowingly run them backwards and then wonder why they don't perform Big old Jaws like that love to run full of rock which enhances the crushing process, so putting a bulk shut on it would work so much better rather than just hand loading single rocks

[@mwilliamshs]

You tilted the jaw. You should install full length shims of uniform thickness. What you've done will wear your jaws rapidly, at best. Breakage is very likely.

[@81cruzin67]

How much was it? Trying to find one.

[@michaelnewman5734]

Try welding 1 inch rebar rods to the face if the plates.

[@ilgiz242]

safety precautions - no, we haven’t heard!

[@markmayer2029]

Why don't you make a longer toggle plate?

[@williamhoward8319]

cut some shims for the wedges then tighten your bolts

[@radiootoo]

What is the make of your crusher?

[@LukaSrnic]

Great video. I wonder if it would have been easier to stick a bottle jack between the jaw and crusher housing to push it forward instead of beating in the wedges? good idea with the strap however.

[@barnsandbrews]

Ah yeah good idea! Didn't think to use a bottle jack!

[@ابوعبدالله-ز8ظ5ق]

كيف تجديد صيانة الكساره شكرا

[@abeonthehill166]

You should have chiselled into the lower stone a type of depression or track to make sure the vibration would not disturb the wedges .

[@radiootoo]

Might be cheaper to just screen your crushed stone.

[@chrisobergin3955]

Did you adjust the wedges built into the jaw crusher? That system should adjust to somewhere between 20 and 40mm when drawn fully in.

[@barnsandbrews]

Yeah I adjusted the wedges to make the gaps as small as they would get but it still wasn't the size material I wanted so I added the additional wedges. The jaw plates are a little worn which adds to the size of the gap