manual rock crushers - gold prospecting mining equipment detectors snake protection
The CrazyCrusher brand Rock Crusher is 100 percent steel, and it is 100 percent made in the U.S.A. by 100 percent Americans! The jaws are made of 3/8 steel, and the face has horizontal welds across them that not only help grip and pull down rock pieces, it also prevents wear on the actual jaws. On the moving jaw, vertical "teeth" were added to help dig in and crack the hardest rocks!
The adjustable jaw moves from a 1/2 inch opening to all the way closed, for that final grind to get your samples as small as you can for testing. The very bottom of the jaws is what does the "grinding" of the rock into sand sized particles and smaller, some so small it is "air borne". Eventually, like all things, the jaws can wear away, but with this style of adjustable jaw, you can keep moving it in tight for a long time!
Although this item was first invented and patented for crushing ore in the field, this handy machine has also been discovered by a different group of users for the purpose of crushing glass for artwork, also known as "frit glass" which ranges in size from an uncooked grain of rice and finer. The Crazycrusher works perfect for this! The user gets to control the size more accurately due to the crushed glass falling out of the crusher in lieu of being in a pestle and mortar and just re-crushing everything by pounding sand." Especially for those artisans who work with large quantities of glass, they can do it better and faster with a handy Crazy Crusher!
USING THE CRAZYCRUSHER
The smaller the rocks, the further down it will go into the jaws, and the easier it is to crush it finer. The upper part of the moving jaw is primarily a forward and back motion, whereas the lower part of the jaw is primarily an up and down motion.
NEVER operate the CrazyCrusher with the steel safety plate open! Initial breaking of rocks can and will cause chips to fly out of the top. The safety plate is designed to keep the chips inside the crusher where they belong not in your eyes! It is highly advisable to wear good leather gloves or mechanics gloves while working this rock crusher to avoid getting blisters.
A catch container is included with the rock crusher. Start with the adjustable plate fully open by turning the adjusting screw counter-clockwise, then turn it in a couple turns. Open the safety plate, put your rock(s) in, close the safety plate and press down on the handle harder and harder until it breaks. If it does not break immediately, give it a few "slams" up and down, putting some weight behind it.
If you plan on grinding the rock to a fine sand, have the classifying screen handy in a pan or something. Once no more pieces are coming out, dump your catch container into the screen and shake the screen. What does not go through the screen and into your pan can be dumped back in to the crusher after you put your catch container back under the crusher and turn the adjusting screw clockwise to about a 1/4" gap between the lower jaw area when the handles are in the down position. Pour the remaining rock particles back in from your screen into the jaws, close the safety plate and work it again, repeating the process until all the sample passes through your selected screen.
To grind a sample, or to grind black sands for further processing, simply close the adjustable jaw until it is resting against the moving jaw. Raise and lower the handle a couple times to assure it is closed all the way and you have full movement of the arms. Starting with the handle in the down position, pour in a few tablespoons of black sands into the CrazyCrusher, and start working the handle up and down until no more sand is coming out. Short choppy strokes work better than full strokes.
A grinding operation will create small amounts of ai-borne dust. It is ALWAYS important to either wear a dust mask or be sure to be up wind of the dust. The reason is that you do not know what is in that rock! There could be arsenic and other nasty things in the ore so you don't want to be breathing in that dust! A dust mask is important, especially when using a drywasher! There could be Haunta virus in the sand, mercury you never know, so please wear a quality dust mask!
If you decide not to take your crusher out in the field to crush ore samples on site, then as you collect samples, mark them with a reference number, Location #1, #2, etc., and make a notation on paper of that number, and include the GPS coordinates of the exact location you found that particular sample.
After collecting samples from many places, and when you have time to crush and analyze the ore, you will know without a doubt where you got those samples! It's advisable to get several plastic containers that you can put your crushed ore in, with a larger piece of the ore to identify the rock your material came from. This way you can crush dozens of different samples, store them together and run your tests later down the road. You never know what you will find inside that particular rock, and knowing where you found it is invaluable. If only the miners and prospectors in the olden days had had a GPS there would not be any "lost mine" stories to read, or to look for!
rock crusher history
History tells us,it was in 1830, the firstUS patent was issued on a rock crushing machine. It covered a device which, in a crude way, incorporated the drop hammer principle later used in the famous stamp mill, whose history is so intimately linked with that of the golden age of mining. In 1840,another patent was issued, which comprised a wooden box containing a cylindrical drum apparently of wood also on which a number of iron knobs, or hammers, were fastened; the expectation was that this drum, when revolved at about 350 RPM, would shatter the rock fed into the top of the box. This device, although it was conceived as an impact crusher and thus would rate as a forerunner of the hammermill, bore a somewhat closer resemblance to the single sledging-roll crusher. There is no evidence that either of these early inventors carried their work through to fruition.
Eli Whitney Blake invented the first successful mechanical rock breaker, the Blake jaw crusher patented in 1858. Blake adopted a mechanical principle familiar to all students of mechanics, the powerful toggle linkage. That his idea was good is attested to by the fact that the Blake type jaw crusher is today the standard by which all jaw crushers are judged, and the leading machine of the class for heavy duty primary crushing service.
The gyratory principle was the basis of several rudimentary designs, patented between 1860 and 1878, noneof which embodied practical mechanical details at least, not in the light of our present-day knowledge of the art. Then, in 1881, Philetus W. Gates was granted a patent on a machine which included in its design all of the essential features of the modern gyratory crusher. The first sale on record antedates the patent by several months, a No. 2 crusher, sold to the Buffalo Cement Co. in 1880. That was the first of several thousand gyratory crushers which carried the name of Gates to the far corners of the earth.
An interesting sidelight of these early days occurred in 1883 when a contest was staged between a Blake jaw crusher and a Gates gyratory crusher. Each machine was required to crush 9 cubic yard of stone, the feed-size anddischarge settings being similar. The Gates crusher finished its quota in 21 minutes, the Blake crusher in 65 minutes, which must have been a sad disappointment to the proponent of the Blake machine, who happened to be the challenger.
For some years after these pioneer machines were developed, requirements, viewed in the light of present practice, were very simple. Mining and quarrying, whether underground or open-pit, was done by hand; tonnages generally were small, and product specifications simple and liberal.
In the milling of precious metal ores, stamp mills were popular as the final reduction machine. These were generally fed with an ore size that could be produced handily by one break through the small gyratory and jaw crushers which served as primary breakers. Even in large underground mining operations there was no demand for large crushers; increased tonnage requirements were met by duplicating the small units. For example, in 1915, at the huge Homestake operation, there were no less than 20 Gates small gyratory crushers sizes No. 5 and 6 to prepare the ore for the batteries of >2500 stamp mills.
Most commercial crushed stone plants were small, and demand for small product sizes practically non-existent. Many plants limited output to two or three products. Generally the top size was about 2.5 to 3 ring-size; an intermediate size of about 1.5 or thereabouts, might be made, and the dust, or screenings, removed through openings of about 0.25. In ballast plants the job was even more simple, one split and an oversize re-crush being all that was needed.
Many small process plants consisted of one crusher, either jaw or gyratory rock crushers, one elevator and one screen. Recrushing, if done, was taken care of by the same machine handling the primary break. The single crusher, when of the gyratory type, might be any size from the No. 2 (6 opening) to the No. 6 with 12-in. opening.
When demand grew beyond the capabilities of one crusher, it was generally a simple matter to add a second machine to take care of the recrushing or secondary crushing work. A popular combination, for example, consisted of a No. 6 primary and a No. 4 secondary, or possibly a 20- x 10-in., or 24- x 12-in. primary jaw, followed by one of the small gyratories. When the business outgrew the capacity of this sort of plant, it was not unusual to double up, either in the same building, or by erecting an entirely separate plant adjacent to the original one.
Crusher manufacturers were not standing still during these early years. In the gyratory line, for example, the No. 2 was the first popular size, and larger machines were developed from time to time up to the No. 6, then the No. 7.5
The steam shovel began to change the entire picture of open-pit working. With the steam shovel came the really huge No. 8 crusher, with its 18 receiving opening. Up to this time the jaw crusher had kept pace with the gyratory, both from the standpoint of receiving opening and capacity, but now the gyratory stepped into the leading position, which it held for some 15 years. Once the ice was broken, larger and larger sizes of the gyratory type of crusher were developed rapidly, relegating the once huge No. 8 machine to the status of a secondary crusher. This turn toward really large primary crushers started just a few years before the turn of the century, and in 1910 crushers with 48 receiving openings were being built.Along about this time the jaw crusher suddenly came back to life and stepped out in front with a great contribution to the line of mammoth-size primary crushers: the 84 x 60 machine built by the now Joy Mining Machinery for a trap rock quarry in eastern Pennsylvania. This big crusher was followed by a No. 10 (24 opening) gyratory crusher for the secondary break. Interest created by this installation reawakened the industry to the possibilities of the jaw crusher as a primary breaker, and lines were brought up-to-date to parallel the already developed gyratory lines.
Although his machines never came into general use in the industry, Thomas A. Edison ranks as a pioneer in the development of the large primary breaker and credited with the announcement of a very interesting and constructive bit of reasoning, which was the basis of his development. Concerned at the time with the development of a deposit of lean magnetic iron ore where he was using a number of the small jaw crushers then available for his initial reduction. Realizing that to concentrate this ore at a cost to permit marketing it competitively meant cutting every possible corner, he studied the problem of mining and crushing the ore as one of the steps susceptible of improvement.
In approaching the problem, Edison reasoned that the recoverable energy in a pound of coal was approximately equal to the available energy in one pound of 50% dynamite; but the cost per pound of the dynamite was about 100 times that of the coal. Furthermore, a large part of the dynamite used in his mining operation was consumed in secondary breaking to reduce the ore to sizes that the small primary crushers would handle. The obvious conclusion was that it would be much cheaper to break the large pieces of ore by mechanical rather than by explosive energy.
With that thesis as a starting point, he set out to develop a large primary breaker, a development which culminated several years later in the huge and spectacular 8 x 7 Edison rolls. A description of the action of this machine will be found in a later section of this series. During the early years of the present century these giant machines created considerable interest, and several were installed in this country. However, they never became popular, and interest swung back to the more versatile gyratory and jaw types. Edison rolls were also developed in smaller sizes for use as secondary and reduction crushers. In his own cement plant Edison used four sets of rolls operating in series to reduce the quarry-run rock to a size suitable for grinding.
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Jaw Crusher, Gold Recovery Equipment, Ball Mill manufacturer / supplier in China, offering Ore Processing Plant Mini Gold Stone Crusher, Small Size Jaw Crusher of Gold Mineral Processing Plant, Small Scale Ore Jaw Crusher of Mineral Processing Plant and so on.
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stone crusher manufacturers for sand, quarry, mining and construction
The types of pressure crushers include jaw crusher, roller crusher, and gyratory crusher. The pressure type crusher uses two hard parts of the machine to press each other to crush rock material. For example, the jaw crushers use the fixed jaw plant and movable jaw plate.
The jaw crusher's main function is to reduce the size of the raw materials or large pieces of material to a sufficiently small size, so as to facilitate the next step of the crushed material. In the quarries and mine materials crushing plant, it is generally used as a primary crusher. The types of jaw crushers are single toggle and double toggle. The construction of the single toggle jaw crusher is compact and simple, and the transmission components such as eccentric shafts are less stressed. Due to the vertical displacement of the movable jaw is small, the material is less excessively broken during processing. Therefore, the wear of the movable jaw plate is less.
Compared with the simple pendulum type, the double toggle type jaw crusher has the advantages of lighter weight, fewer components, a more compact structure and uniform crushing, high productivity. 20-30% higher productivity than a simple swing jaw crusher of the same specification.
Tooth Roller crusher is a new product that is designed and developed according to the structure principle of Gunlock crusher in America. The machine has the advantages of small volume, high crushing ratio (5-8) , low noise, simple structure, convenient maintenance, high productivity, even particle size of crushed materials, low over crushing rate, convenient maintenance, etc. The mall roller crusher is widely used in the mining industry as a secondary crusher.
Gyratory crusher is a new type of crusher that can replace fine jaw crusher and cone crusher. It consists of a concave surface and a conical head, both of which are usually lined with manganese steel. The inner cone has a slight circular movement but doesn't rotate. The gyratory has the advantages of good finely crushing effect, large processing capacity, small vibration, simple maintenance, low cost, and less lining plate wear.
Impact crushers crush materials by impact rather than by pressure. The material is broken in the crushing chamber under the impact force. It can handle materials with side length less than 100-500 mm, with compressive strength up to 350 MPA. It has the advantages of a large crushing ratio and cubic particles after crushing. There are two types of impact crushers: Horizontal Shaft Impact(HSI) Crushers and Vertical Shaft Impact(VSI) Crushers.
In the sand making plant is one of the essential crushers. Cone crusher according to the crushing force is divided into Simmons spring type and hydraulic type. Hydraulic type is divided into single-cylinder and multi-cylinder cone crusher. According to the rotary speed, there are three types: low speed, medium speed and high speed.
The basic structure of cone crusher is similar to that of rotary crusher, but the range is larger. It rotates and presses against the stone on the side of the machine, where it falls into the lower chamber and is crushed again until it falls out of the bottom. Its advantages: reliable structure, high productivity, easy adjustment, and low operation cost.
Hammer crusher(Hammer mill) is broken by an impact between a high-speed hammer and material. This type of crusher is divided into two types: single rotor and double rotor. Single Rotor is divided into reversible and irreversible. Hammer crusher is mainly composed of the rotor, spindle, hammerhead, lining plate and impact plate. And it mainly crushing for coal, salt, chalk, gypsum, brick, limestone and so on. It also used for crushing fiber structure, flexibility, and toughness of strong broken wood, paper, etc.
The advantages of the hammer: larger crushing ratio, high production capacity, uniform products, less over-powder phenomenon, simple structure, light equipment quality, simple operation, and maintenance.
Sand crusher is also called VSI crusher. It is an indispensable equipment for artificial sand manufacturing plant. VSI crusher imported advanced German technology development and production, with the international advanced level. Its performance plays an irreplaceable role in the fine crushing equipment of various materials. There are two types of sand-making machine: stone hit stone and stone hit steel.
The upper and lower hitting guard plate is installed on the crushing cavity wall of the sand making machine. It makes the ore material to be crushed by the impact, friction or high-speed impact between the material and the lining layer formed by the material and the material accelerated by the flywheel when accelerating. The materials do not come into direct contact with the equipment. This method reduces the wear and tear of fittings and prolongs the service life. "Stone hit stone" sand crusher is suitable for material with high abrasion above medium hardness, such as basalt. And the finished product has good grain shape, but the powder content is a little more. So it is more suitable for aggregate shaping.
In the crushing cavity wall of the sand-making machine, the lower hitting guard plate is replaced by the perimeter guard plate. When the ore material is thrown out by the roller, it is directly impacted on the guard plate for many times and the crusher. Under the constant impact, and then the crushing cavity material impact, ore material broken more fully, and the finished material particle size smaller. The "stone hit steel" sand crusher is suitable for small abrasive materials below medium hardness, such as limestone, and the crushing efficiency is high. However, due to crushing depends on the impact, so wear parts are higher. The finished product is slightly worse, it is more suitable for sand-making.
1. 40 years old
JXSC Mine Machinery Factory founded in 1985, and we have 40 years of production experience. In the 40 years, we are committed to the development, production, sale of high-quality crushing equipment, mining and mineral processing equipment. We have mature manufacturing technology, excellent engineers, design and manufacture high-yield crushing plant, sand plant mining plant for users.
3. Considerate pre-sale service, after-sale guaranteed service
We have a professional sales team to answer all your equipment questions. Take the customer to the factory to see the equipment and free test machine. We provide equipment installation schematic diagram, video installation guide. In some places, our engineers can go to the site to install and debug. All the equipment is guaranteed for one year, except for the wear parts.
Both crusher production line and sand production line basically use vibrating screen. There are many kinds of vibrating screen, which can be divided into circular vibrating screenand linear vibrating screenaccording to the movement track of materials. These two types of screening equipment are usually used in daily production. Whats the
Multi-cylinder hydraulic cone crushers are widely used in the sand aggregate and mining industries, especially in the medium and fine crushing processing systems of medium-hard materials. Weintroduce4 common problems in the operation of cone crusher: abnormal vibration, high noise, easy dirty lubricating oil, high oil return temperature, and introduce how
JXSC Mine Machinery provides stone-crushing solutions for a range of industries including mining and construction. We manufacture three types of machinery, namely, the crushing machine, the sand-making machine, and the mineral processing machine. Various models of these are available as per customer needs. Our products are cost-effective and high-quality. In
Jiangxi Shicheng stone crusher manufacturer is a new and high-tech factory specialized in R&D and manufacturing crushing lines, beneficial equipment,sand-making machinery and grinding plants.
manual & hand operated rock crusher
HOW TO SETUP AND USE THE HAND OPERATEDROCK CRUSHER:The rock crusher is shipped with the handle screwed to the inside of the flywheel. This must be reversed. In the case of the double flywheel version there are two handles. The handle has two flats to accept a 24mm spanner right against the flywheel. Use a 24 spanner or a shifting spanner to hold it still. The nut on the other side of the flywheel is a 30mm spanner. Unscrew the nut and re-mount the handle(s) on the outside so the flywheel can rotate.
The crusher should be mounted on a base for a safe operation. For mobile work it is desirable to mount it on a metal plate or bolt it down on a temporary concrete slab. If the crusher is used on one place only, a sloping base (see picture) can be made for it. The slope makes it very easy to remove the crushed stone. The surface the machine is being bolted onto must be flat. If it is not the frame will be twisted as it is bolted down and it will not work properly. If the surface is already finished and it is not flat, use steel shims under the feet so that when it is bolted tight to the base the frame has not been twisted.
1. There are three adjustment one can make on the Rock Crusher: Top adjustment of the fixed jaw, bottom adjustment of the fixed jaw and stroke adjustment for the swing jaw. Remember that the Fixed Jaw is invertible (can be turned upside down). So it can last you twice as long.
1.1 The adjustment on the top of the Rock Crusher allows you to move the top of the Fixed Jaw (which does not move when the handle is turned) closer to the Swing Jaw (the one that does move). It is used wide open (150mm opening) for crushing large pieces of rock down to a smaller size about 25-40mm. When crushing stone or rubble to a small size (i.e. below 16mm) it will be done in two or more stages for maximum production.
The Swing Jaw setting is normally set on the bottom hole which gives the most movement back and forth. To crush rubble (broken cement blocks and concrete), first set the top of the Fixed Jaw to the maximum opening (150mm) and the bottom of the Fixed Jaw also to the maximum size. On the second pass, or when crushing small pieces, set the top of the Fixed Jaw to the 100 position. This is the centre of the three holes. Set the bottom of the
Fixed Jaw to give you the final size you want. These smaller settings use a larger proportion of the jaws and crushes more pieces at a time. If the raw material will fit into the 100 or 50mm top opening, make the first pass with a smaller opening unless the material is particularly hard.
1.2 The second adjustment is at the bottom of the Fixed Jaw. This sets the distance between the bottom of the Fixed Jaw and the bottom of the Swing Jaw. The smaller the setting, the smaller the stone has to be in order to pass out of the machine. Do not try to crush stone or rubble down to a small size in one pass. It takes too much time as the lowest teeth have to do most of the grinding.
Pull the pin out of the square bar at the bottom of the Fixed Jaw and align it with the hole that suits the job at hand. There are 5 pin holes and three positions for the Square Bar. This gives 15 steps of 2 mm each. There are four holes in a row with the lowest one giving the smallest size and the top one much larger. The hole out of line near the bottom hole gives the biggest size.
Make the bottom spacing between the jaws in the range of 25 35mm (pin in top hole or in the hole that is out of line). This is the normal setting for the First Pass. After crushing rubble (which will generate some dust and small pieces) use a sieve and take out the larger pieces for re-crushing and make cement blocks with what passes through the sieve.
The third adjustment is the pin at the back of the Swing Jaw. See the three numbered holes in the picture. The pin is much tighter to remove than the other two because it passes through two bearings. Give it a good stiff yank. Clean it if necessary.
The bottom pin has three possible settings. When the pin is in the bottom position (1, and passes through the bearings) the bottom lip of the Swing Jaw moves up and down as well as back and forth slightly. This position passes the most material through the machine per turn. It also allows a large range of sizes to pass through. For example, if the bottom position is used and the Fixed Jaw is set so that the gap between the jaws is 15mm then the Rock Crusher will actually pass out 15-20mm pieces.
If you put in the third pin in the top-most position (3), the range of size produced is reduced. The capacity in wheelbarrows per day is also reduced as it takes more time to pass the pieces through as the Swing Jaw no longer opens and closes at the bottom releasing the stones. The middle setting (2) is a compromise between the two others, allowing a modest range of sizes through. Another type ofhand powered rock crusher.
Crushing rubble for brick making:
Set the bottom pin of the Fixed Jaw to the bottom hole nearest to the Swing Jaw. This will make the gap about 6 to 8mm. The handle on the Square Bar cannot be turned to a fine adjustment (2mm each) when the jaws are this close together the pin must be removed, the Square Bar rotated, and the pin re-inserted if you want to change the spacing of the jaws.
Re-grind the material sieved out of the first pass. It might be as little as 1/4 of the original volume. It will generate a lot of very small particles and has a slower throughput than before. Sieve the output again for any flat flakes that have made it through the whole process uncrushed. Keep these aside and dump them in when the next batch goes through for a second pass.