How to Build a Rock Crusher

Stone crusher come in many shapes and sizes, from the strictly hand held to the complex industrial sizes, which can crush tons of rock and ore in one day. Making your own jaw crusher invariably requires you or someone you know to possess some basic welding skills. Iron is the ore of choice when it comes to breaking rocks into hand-sized pieces, and a skilled or even semi-skilled welder are the only people who can shape iron. This particular kind of rock crusher is perfect for homeowners or amateur prospectors.
Instructions
1.Using your tape measure and permanent marker, measure and mark the center of the iron board.
2.Center the 4-inch diameter pipe on the mark.
3.Activate your arc welding torch, don you welder's mask, and weld the 4-inch pipe to the iron board. Let stand until cool to the touch.
4.Pour the quick dry cement in a wheelbarrow or metal tub, follow the mixing directions on the package. You will not need to use more than 2 lbs. of cement at most.
5.Using a trowel, pack the capped 6-inch iron pipe with wet cement.
6.Quickly insert the 3-foot iron rod into the cement. Move it until it stands at the center of the pipe. You may need to prop it in place by fixing a C-clamp to it and laying the clamp on the top of the pipe. Let the cement dry---even quick-dry cement may take 4 to 6 hours to set.
7.Use the cemented rod pipe as a piston, driving it down into the 4-inch base pipe to crush rocks.

How to Use a Stone Crusher

Stone crusher is commonly used on construction sites and in stone quarries to crush large stones into smaller pieces. Crushed rock has a variety of purposes but is often used to make level surfaces, provide drainage under roads and buildings or to create gravel roads. There are three types of crushers; sometimes multiple crushers are used to achieve the desired size. Jaw crushers crush rock by closing two walls against the large stones several times. Roller crushers are often used as secondary crushers; rocks are fed between two rollers that crush the rock. Cone crusher squeeze rock through spinning grinders.

1

Inspect all the parts of the rock crusher before operation and make any repairs or add lubrication where needed. Check for broken teeth, bolts and belts and make sure there are no obstructions in the crushing cavity.
2

Turn on the engine of the rock crusher and listen to make sure that it is operating properly.

3

Start the crushing mechanism of the stone crusher to make sure all components are operating smoothly. Shut down the machine and make repairs where necessary.
4

Set the stone crusher up under a conveyor belt that can carry crushed rock to a pile or dump truck.
5

Adjust the opening of the stone crusher to accommodate the size of the stones you will be crushing. If you leave the opening too wide, your machine will be performing excessive work, leading to unnecessary wear on your stone crusher.
6

Feed large stones into the cavity of your stone crusher with a crane or conveyor belt and allow the machine to do the work.
7

Feed crushed stones into a secondary stone crusher to achieve smaller rocks, if desired. If you use a jaw crusher, you may need to use a roller crusher to produce gravel-sized rocks.
8

Turn off the power to the machine and inspect its parts to make sure there are no stones lodged in the stone cavity.