Metso Lokotrack LT120, Jaw Crusher.

[Azonic]

Originally Posted by 9W Monighan

We had my Denver jaw crusher out last month for Cabin Fever Expo. Worked great!
I still haven't had time to edit some video of it working crushing hard Limestone.
Something you may want to consider on your jaws along with the offset teeth are;
Curved jaws. Watching my machine chew the rocks it looks like the curve jaw makes it feed well.

Yeah, I did consider that on the first one as well, but for simplicity I made them straight, but I think youre right, it will feed better.

Is only the moving jawplate curved on yours?

Also, how much throw does the eccentric have?

[Grainfarmer]

Nice project and great job! I´ve some worries if the excenter shaft will be strong enough...made of brass. A friend of mine built a chrusher years ago and had some trouble with teh shaft and bearings in the beginning. After changing ball into roller bearings it runs great...
But that was just an idea...keep on with your crisher. It looks great!

[9W Monighan]

Originally Posted by Azonic

Yeah, I did consider that on the first one as well, but for simplicity I made them straight, but I think youre right, it will feed better.

Is only the moving jawplate curved on yours?

Also, how much throw does the eccentric have?

I'll have to get back to you for the throw on on the crank and better view of the jaws.
Bear in mind that my crusher is a real machine in the sense that it is commercially built. As far as I know ,these are used for testing small amounts of ore in a laboratory.
Here's a view of the jaws I took last summer.