As the key material for infrastructure, natural stones are generally large and not suitable for construction, so we need suitable equipment for crushing the stones into small sizes or changing their shape.
At present, the equipment used in the stone crusher plant is divided into fixed stone crusher machines and mobile or portable stone crusher machines. Based on this, two types of crushers are developed, namely semi-mobile or semi-portable stone crusher machines and semi-fixed stone crusher machines.
Mobile (portable) stone crusher machines, also called mobile or portable crushing plant, are generally composed of crushers (jaw crusher machine, impact rock crusher, hammer crusher, cone crusher machine, roll crusher machine), screening machine, feeder, conveyor, control system, etc.
Combining primary crushing, secondary crushing and sand making into one, the mobile crushing plant adopts self-driving method so that the components can be fixed on a whole frame. It moves by crawler or tire type track to crush the materials in a mobile manner.
The feeder feeds the stone into the crushing chamber. After being crushed and sieved, the qualified finished products are transported to the finished product warehouse, and unqualified can be crushed again.
Because it is a Trinity equipment, and the continuous transportation equipment connected is belt conveyors, the crawler type mobile crushers are suitable for large-scale open mining and large-scale and continuous mining processes.
The semi-mobile stone crusher machines are also called semi-portable stone crusher machines. It is to place the body in the appropriate working level in the open pit. With the advancement of the working steps, it can be pulled and transferred by a crawler truck or other traction equipment with its whole set configurable machines.
The most typical feature of semi-mobile crushing stations is that they are connected to the concrete-free foundation. Their service life ranges from a few months to several years, and the migration time usually is less than 48 hours.
The semi-mobile stone crusher is usually placed on the working slope, and the transport distance should be less than 3 km. When the mining steps extend to the outside of the reasonable transport distance and climbing height of the vehicle, the next shift should be performed.
From the perspective of the foundation, its crushing frame has a strong connection with the ground (the bedrock can be connected by anchor piles, and concrete foundation can be used in the loose area).
From the perspective of the position of the layout, it is generally fixed on the working slope to minimize the frequency of movement and improve the service life, especially for rock crushing and transportation.
When the semi-fixed stone crusher is moved, only the body of the device that is bolted to the foundation can be disassembled and moved for reuse, and the foundation buried below the surface is discarded.
The fixed crusher machines are usually arranged outside the boundary of the stope, or placed in the interior of the stope and arranged in conjunction with the chute, which is not affected by the advancement and deepening of the stope. It has a permanently fixed foundation connection with the ground.
The feeding method is diversified. The automobile can directly discharge the materials, or the buffer silo can be set for feeding through the ore-mining device. The fixed crusher is generally in the crushing workshop, and has the same life as the mine.
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A sectional view of the single-toggle type of jaw crusher is shown below.In one respect, the working principle and application of this machine are similar to all types of rock crushers, the movable jaw has its maximum movement at the top of the crushing chamber, and minimum movement at the discharge point. The motion is, however, a more complex one than the Dodge motion, being the resultant of the circular motion of the eccentric shaft at the top of the swing jaw. combined with the rocking action of the inclined toggle plate at the bottom of this jaw. The motion at the receiving opening is elliptical; at the discharge opening, it is a thin crescent, whose chord is inclined upwardly toward the stationary jaw. Thus, at all points in the crushing chamber, the motion has both, vertical and horizontal, components.
It will be noted that the motion is a rocking one. When the swing jaw is rising, it is opening, at the top, during the first half of the stroke, and closing during the second half, whereas the bottom of the jaw is closing during the entire up-stroke. A reversal of this motion occurs during the downstroke of the eccentric.
The horizontal component of motion (throw) at the discharge point of the single-toggle jaw crusher is greater than the throw of the Dodge crusher at that point; in fact, it is about three-fourths that of Blake machines of similar short-side receiving-opening dimensions. The combination of favorable crushing angle, and nonchoking jaw plates, used in this machine, promotes a much freer action through the choke zone than that in the Dodge crusher. Capacities compare very favorably with comparable sizes of the Blake machine with non-choking plates, and permissible discharge settings are finer. A table of ratings is given.
The single-toggle type jaw crusher has been developed extensively. Because of its simplicity, lightweight, moderate cost, and good capacity, it has found quite a wide field of application in portable crushing rigs. It also fits into the small, single-stage mining operation much better than the slower Dodge type. Some years since this type was developed with very wide openings for reduction crushing applications, but it was not able to seriously challenge the gyratory in this field, especially when the high-speed modern versions of the latter type were introduced.
Due to the pronounced vertical components of motion in the single-toggle machine, it is obvious that a wiping action takes place during the closing strokes; either, the swing jaw must slip on the material, or the material must slip along the stationary jaw. It is inevitable that such action should result in accelerated wear of the jaw plates; consequently, the single-toggle crusher is not an economical machine for reducing highly abrasive, or very hard, tough rock. Moreover, the large motion at the receiving opening greatly accentuates shocks incidental to handling the latter class of material, and the full impact of these shocks must be absorbed by the bearings in the top of the swing jaw.
The single-toggle machine, like the Dodge type, is capable of making a high ratio-of-reduction, a faculty which enables it to perform a single-stage reduction of hand-loaded, mine run ore to a suitable ball mill, or rod mill, feed.
Within the limits of its capacity, and size of receiving openings, it is admirably suited for such operations. Small gravel plant operations are also suited to this type of crusher, although it should not be used where the gravel deposit contains extremely hard boulders. The crusher is easy to adjust, and, in common with most machines of the jaw type, is a simple crusher to maintain.
As rock particles are compressed between the inclined faces of the mantle and concaves there is a tendency for them to slip upward. Slippage occurs in all crushers, even in ideal conditions. Only the particles weight and the friction between it and the crusher surfaces counteract this tendency. In particular, very hard rock tends to slip upward rather than break. Choke feeding this kind of material can overload the motor, leaving no option but to regulate the feed. Smaller particles, which weigh less, and harder particles, which are more resistant to breakage, will tend to slip more. Anything that reduces friction, such as spray water or feed moisture, will promote slippage.
Leading is a technique for measuring the gap between fixed and moveable jaws. The procedure is performed while the crusher is running empty. A lead plug is lowered on a lanyard to the choke point, then removed and measured to find out how much thickness remains after the crusher has compressed it. This measures the closed side setting. The open side setting is equal to this measurement plus the throw of the mantle. The minimum safe closed side setting depends on:
Blake (Double Toggle) Originally the standard jaw crusher used for primary and secondary crushing of hard, tough abrasive rocks. Also for sticky feeds. Relatively coarse slabby product, with minimum fines.
Overhead Pivot (Double Toggle) Similar applications to Blake. Overhead pivot; reduces rubbing on crusher faces, reduces choking, allows higher speeds and therefore higher capacities. Energy efficiency higher because jaw and charge not lifted during cycle.
Overhead Eccentric (Single Toggle) Originally restricted to sampler sizes by structural limitations. Now in the same size of Blake which it has tended to supersede, because overhead eccentric encourages feed and discharge, allowing higher speeds and capacity, but with higher wear and more attrition breakage and slightly lower energy efficiency. In addition as compared to an equivalent double toggle, they are cheaper and take up less floor space.
Since the jaw crusher was pioneered by Eli Whitney Blake in the 2nd quarter of the 1800s, many have twisted the Patent and come up with other types of jaw crushers in hopes of crushing rocks and stones more effectively. Those other types of jaw crusher inventors having given birth to 3 groups:
Heavy-duty crushing applications of hard-to-break, high Work Index rocks do prefer double-toggle jaw crushers as they are heavier in fabrication. A double-toggle jaw crusher outweighs the single-toggle by a factor of 2X and well as costs more in capital for the same duty. To perform its trade-off evaluation, the engineering and design firm will analyze technical factors such as:
1. Proper selection of the jaws. 2. Proper feed gradation. 3. Controlled feed rate. 4. Sufficient feeder capacity and width. 5. Adequate crusher discharge area. 6. Discharge conveyor sized to convey maximum crusher capacity.
Although the image below is of a single-toggle, it illustrates the shims used to make minor setting changes are made to the crusher by adding or removing them in the small space between the crushers mainframe and the rea toggle block.
The jaw crusher discharge opening is the distance from the valley between corrugations on one jaw to the top of the mating corrugation on the other jaw. The crusher discharge opening governs the size of finished material produced by the crusher.
Crusher must be adjusted when empty and stopped. Never close crusher discharge opening to less than minimum opening. Closing crusher opening to less than recommended will reduce the capacity of crusher and cause premature failure of shaft and bearing assembly.
To compensate for wear on toggle plate, toggle seat, pitman toggle seat, and jaws additional shims must be inserted to maintain the same crusher opening. The setting adjustment system is designed to compensate for jaw plate wear and to change the CSS (closed side setting) of the jaw crusher. The setting adjustment system is built into the back frame end.
Here also the toggle is kept in place by a compression spring. Large CSS adjustments are made to the jaw crusher by modifying the length of the toggle. Again, shims allow for minor gap adjustments as they are inserted between the mainframe and the toggle block.
is done considering the maximum rock-lump or large stone expected to be crushed and also includes the TPH tonnage rate needing to be crushed. In sizing, we not that jaw crushers will only have around 75% availability and extra sizing should permit this downtime.
As a rule, the maximum stone-lump dimension need not exceed 80% of the jaw crushers gape. For intense, a 59 x 79 machine should not see rocks larger than 80 x 59/100 = 47 or 1.2 meters across. Miners being miners, it is a certainty during day-to-day operation, the crusher will see oversized ore but is should be fine and pass-thru if no bridging takes place.
It will be seen that the pitman (226) is suspended from an eccentric on the flywheel shaft and consequently moves up and down as the latter revolves, forcing the toggle plates outwards at each revolution. The seating (234) of the rear toggle plate (239) is fixed to the crusher frame; the bottom of the swing jaw (214) is therefore pushed forward each time the pitman rises, a tension rod (245) fitted with a spring (247) being used to bring it back as the pitman falls. Thus at each revolution of the flywheel the movable jaw crushes any lump of ore once against the stationary jaw (212) allowing it to fall as it swings back on the return half-stroke until eventually the pieces have been broken small enough to drop out. It follows that the size to which the ore is crushed.
The jaw crusher is not so efficient a machine as the gyratory crusher described in the next paragraph, the chief reason for this being that its crushing action is confined to the forward stroke of the jaw only, whereas the gyratory crusher does useful work during the whole of its revolution. In addition, the jaw crusher cannot be choke-fed, as can the other machine, with the result that it is difficult to keep it working at its full capacity that is, at maximum efficiency.
Tables 5 and 6 give particulars of different sizes of jaw crushers. The capacity figures are based on ore weighing 100 lb. per cubic foot; for a heavier ore, the figures should be increased in direct proportion to its weight in pounds per cubic foot.
The JAW crusher and the GYRATORY crusher have similarities that put them into the same class of crusher. They both have the same crushing speed, 100 to 200 R.P.M. They both break the ore by compression force. And lastly, they both are able to crush the same size of ore.
In spite of their similarities, each crusher design has its own limitations and advantages that differ from the other one. A Gyratory crusher can be fed from two sides and is able to handle ore that tends to slab. Its design allows a higher-speed motor with a higher reduction ratio between the motor and the crushing surface. This means a dollar saving in energy costs.
A Jaw crusher on the other hand requires an Ely wheel to store energy. The box frame construction of this type of crusher also allows it to handle tougher ore. This design restricts the feeding of the crusher to one side only.
The ore enters from the top and the swing jaw squeezes it against the stationary jaw until it breaks. The broken ore then falls through the crusher to be taken away by a conveyor that is under the crusher.Although the jaws do the work, the real heart of this crusher is the TOGGLE PLATES, the PITMAN, and the PLY WHEEL.
These jaw crushers are ideal forsmall properties and they are of the high capacity forced feed design.On this first Forced Feed Jaw Crusher, the mainframe and bumper are cast of special alloy iron and the initial cost is low. The frame is ribbed both vertically and horizontally to give maximum strength with minimum weight. The bumper is ruggedly constructed to withstand tremendous shock loads. Steel bumper can be furnished if desired. The side bearings are bronze; the bumper bearings are of the antifriction type.
This bearing arrangement adds both strength and ease of movement. The jaw plates and cheek plates are reversible and are of the best-grade manganese steel. The jaw opening is controlled by the position of an adjustable wedge block. The crusher is usually driven by a V-to-V belt drive, but it can be arranged for either V-to-flat or fiat belt drive. The 8x10 size utilizes a split frame and maybe packed for muleback transportation. Cast steel frames can be furnished to obtain maximum durability.
This second type of forced feed rock crusher is similar in design to the Type H listed above except for having a frame and bumper made of cast steel. This steel construction makes the unit lighter per unit of size and adds considerable strength. The bearings are all of the special design; they are bronze and will stand continuous service without any danger of failure. The jaw and cheek plates are manganese steel; and are completely reversible, thus adding to their wearing life. The jaw opening is controlled by the position of an adjustable wedge block. The crushers are usually driven by V-to-V but can be arranged for V-to-flat and belt drive. The 5x6 size and the 8x10 size can be made with sectionalized frame for muleback transportation. This crusher is ideal for strenuous conditions. Consider a multi jaw crusher.
Some jaw crushers are on-floor, some aboveground, and others underground. This in many countries, and crushing many kinds of ore. The Traylor Bulldog Jaw crusher has enjoyed world wide esteem as a hard-working, profit-producing, full-proof, and trouble-free breaker since the day of its introduction, nearly twenty years ago. To be modern and get the most out of your crushing dollars, youll need the Building breaker. Wed value the privilege of telling you why by letter, through our bulletins, or in person. Write us now today -for a Blake crusher with curved jaw plates that crush finer and step up production.
When a machine has such a reputation for excellence that buyers have confidence in its ability to justify its purchase, IT MUST BE GOOD! Take the Type G Traylor Jaw Crusher, for instance. The engineers and operators of many great mining companies know from satisfying experience that this machine delivers a full measure of service and yields extra profits. So they specify it in full confidence and the purchase is made without the usual reluctance to lay out good money for a new machine.
The success of the Type G Traylor Jaw Crusheris due to several characteristics. It is (1) STRONG almost to superfluity, being built of steel throughout; it is (2) FOOL-PROOF, being provided with our patented Safety Device which prevents breakage due to tramp iron or other causes of jamming; it is (3) ECONOMICAL to operate and maintain, being fitted with our well-known patented Bulldog Pitman and Toggle System, which saves power and wear by minimizing frictionpower that is employed to deliver increased production; it is (4) CONVENIENT to transport and erect in crowded or not easily accessible locations because it is sectionalized to meet highly restrictive conditions.
Whenever mining men need a crusher that is thoroughly reliable and big producer (which is of all time) they almost invariably think first of a Traylor Type G Jaw Crusher. By experience, they know that this machine has built into it the four essentials to satisfaction and profit- strength, foolproofness, economy, and convenience.
Maximum STRENGTH lies in the liberal design and the steel of which crushers parts are made-cast steel frame, Swing Jaw, Pitman Cap and Toggles, steel Shafts and Pitman rods and manganese steel Jaw Plates and Cheek Plates. FOOLPROOFNESS is provided by our patented and time-tested safety Device which prevents breakage due to packing or tramp iron. ECONOMY is assured by our well-known Bulldog Pitman and Toggle System, which saves power and wear by minimizing friction, the power that is used to deliver greater productivity. CONVENIENCE in transportation and erection in crowded or not easily accessible locations is planned for in advance by sectionalisation to meet any restrictive conditions.
Many of the worlds greatest mining companies have standardized upon the Traylor Type G Jaw Crusher. Most of them have reordered, some of them several times. What this crusher is doing for them in the way of earning extra dollars through increased production and lowered costs, it will do for you! Investigate it closely. The more closely you do, the better youll like it.
Stone crusher is mainly used for crushing operation in quarry crushing plant and mining plant. There are 5 types of stone crushers: jaw crusher, impact crusher, hammer crusher, cone crusher, and VIS crusher. What is the application of the 5 types of stone crushers and how to maintenance? This article is about a thorough introduction.
Jaw crusher is a heavy-duty which crushing the hard rock. Therefore, the jaw crusher parts need to be very hard and durable. In particular, the two components of the jaw crusher work, the fixed jaw, and the movable jaw. The crushers machine are widely used in industries of mining, building materials, roads, railways, water conservancy, and chemical. The types of jaw stone crusher: single toggle jaw crusher and double toggle jaw crusher.
During the maintenance of the jaw crushers, wear part is a common occurrence. This is also the main wear in the stone crushing line. Therefore, we recommend that customers purchase high-quality jaw crushers, which are more durable and have better running performance. During use, it can avoid many unnecessary wear problems and reduce the trouble of frequently changing parts. 8 notes of jaw crusher routine maintenance.
1. Check the heat of the bearing. The temperature of rolling bearings doesnt exceed 70 C. If exceeds the specified temperature, it must stop and immediately check and troubleshoot. 2. Check whether the lubrication system is normal. Whether there is a crash of a gear oil pump. Observe the value of the oil pressure gauge and check whether the lubrication system in the fuel tank leaks oil. If find the above various conditions are abnormal, dealt with they in a timely manner. The place of movable jaw suspension bearing and the elbow, it should lubricate regularly which automatic or manual oil pump lubrication. 3. Check whether the oil contains metal powder and other contaminants. If there is dirt, stop the bearing and other parts to check. 4. Check whether there are loose joints between the bolts and flywheel keys of each part. 5. Check the wear of the gear plate and transmission components, and whether the lever spring is normal. 6. Always keep the equipment clean, so that there is no dust, no oil, no oil leakage, no water leakage, no leakage, no leakage. Especially pay attention to prevent dust from entering the lubrication system and lubrication parts. 7. Clean the filter cooler regularly, and wait until it is completely dried before washing. 8. Regularly change the lubricating oil in the fuel tank. Usually once every six months.
The impact crusher crushing the soft and very hard materials, even if there is moisture in the material. The types of stone crushers are widely used in building materials, ore crushing, railways, highways, energy, transportation, energy, cement, mining, chemical and other industries for medium and fine materials.
1. The jaw crushers run smoothly. When the vibration quantity of the machine suddenly increases, it should stop immediately to find out the cause. 2. Under normal conditions, the temperature rise of the bearing should not exceed 35, and the maximum temperature should not exceed 70 . If it exceeds 70, stop immediately and find out the cause. 3. When the plate hammer wear reaches the limit mark, it should be turned around or replaced in time. 4. After assembling or replacing the hammer, it must maintain the rotor balance, and the static balance should not exceed 0.25kg.m. 5. When the rack lining wear, replace it in time which can avoid wearing the casing. 6. Check the tightening status of all bolts before starting each time.
1. Always pay attention to and timely lubrication of the friction surface. 2. The lubricating oil used in the impact crusher should be determined according to the location of the crusher machine, temperature, and other conditions.
Cone crusher is an advanced hydraulic crusher with high power, large crushing ratio, and high productivity. Generally, it uses as a secondary crusher to break medium-hard materials, and use as fine crushers in artificial sand making process plants and quarry plant. Cone Crusher is a hydraulic crushing machine suitable for use in raw materials in the metallurgical, construction, road construction, chemical, and silicate industries. Types of cone stone crushers: GP cone crusher namely single-cylinder hydraulic cone crusher, HP cone crusher namely multi-cylinder hydraulic cone crusher, Compound cone crusher.
1. There must be a de-ironing device to prevent the crushing chamber from passing through the iron. If the iron is frequently over-exposed, it may cause a shaft breakage accident. 2. To be fully loaded, otherwise, the product size will be too thick. 3. The crushing ratio in the production line should be reasonable, so as to maximize the efficiency of the crusher. 4. The spring pressure should not be too tight. If the pressure is too high, the shaft breakage will occur. If the pressure is too small, the spring will jump frequently which affecting the normal operation of the crusher. The product size will become thicker. 5. The temperature of the lubricating oil should not be too high or too low. Otherwise, it will affect the operation of the machine. 6. A lubricating oil should be replaced frequently. Not too dirty. If it is too dirty, it will accelerate the wear of gears, bowl-shaped tiles, bushings, etc., and even make the bushings die. 7. The drive belt installation should not be too tight. Otherwise, it will cause the driveshaft to rotate inflexible or broken. It should not be too loose, otherwise, it will cause the crusher to suffocate. 8. The feeding material should not be too wet and too sticky, the fine particles should not be too much, and it should not be too big. Otherwise, it will cause boring.
Hammer crusher is a high-speed rotary crushing machine. The crusher is suitable for crushing medium hardness materials in industrial sectors such as cement, chemical, electric power, and metallurgy. The medium hardness materials such as limestone, slag, coke, coal and other materials in the medium and fine crushing operations. The hammer mill rock crusher can be used not only for crushing plant, sand making plant, it also can replace cone crushers in mining plant. The types of stone hammers crushers: single-stage hammer crusher, high-efficiency hammer crusher, sand making machine, vertical shaft hammer rock crusher, reversible hammer crusher, double rotor hammer crusher, ring hammer crusher.
1. It should contact the upper and lower procedures related to the machine before starting to stop. And perform the correct operation in the order of opening and stopping. 2. To start the empty machine and should empty the material in the crushing chamber and then stop. 3. Always check all the anchor bolts and lining bolts of the equipment for looseness. If loose, tighten them in time. 4. Check the use of easy-to-wear and easy-to-wear parts such as hammerheads and linings. If we find the problems, they should be disposed of in time. 5. Look at the lubrication and keep the lubrication system in good condition. 6. Keep the feed even and take care not to feed metal debris. 7. Pay attention to check whether the discharge granularity meets the quality requirements. If it does not meet, replace the purlin or adjust the height of the purlin bracket.
VSI crusher is a kind of sand making machine which uses in sand plant and quarry plant. The VSI sand making machine is a hydraulically impact sand making machine that is 50% more energy-efficient than conventional machines. It can make all kinds of rocks, sandstones and river pebbles with construction sand of various grain sizes. The uniformity of sand and high compressive strength.
Firstly, the inspection of sand making equipment before starting. Check whether the machine cavity inspection door is closed. If no close, close it to prevent the material from flying out and posing a danger to the staff. And the lubricating oil of the equipment should also be inspected.
Thirdly, the starting sequence of the VSI series crushers must be correct. It is generally installed in the following order: vibrating feeder jaw crusher sand making machine vibrating screen sand washing machine. In the event of a shutdown, you need to operate in reverse order.
Finally, it is necessary to ensure the normal feed rate and volume of the equipment during the production process. We must strictly follow the feed size required by the equipment. Forbidding to enter metal materials and large stones to prevent damage to the parts of the equipment. If we find severe vibration or loud noise during the production process, stop and inspect in time for timely treatment.
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. Read More
Likewise, how is crush and run calculated? Multiply the length (L), in feet, by the width (W), in feet, by the height (H), in feet, and divide by 27. This will tell you how many cubic yards of crushed stone you need.
You can convert from metric tons to cubic yards by multiplying the material's mass by its density and then doing the metric conversion. Multiply the amount in metric tons by 1,000 to convert to kilograms. For example, five metric tons converts to 5,000 kilograms. Find the volume in cubic meters.
Crushed Stone & Rock Prices Rock Type Per Foot Per Yard Black Gravel / Lava Rock $3.55 $10.56 $96 $140 Crushed Limestone $1.48 $2.00 $35 $54 Crusher Run Gravel $0.50 $2.00 $51 $54 Sand & Gravel (Class 5) $0.50 $1.50 $15 $25
Ton, unit of weight in the avoirdupois system equal to 2,000 pounds (907.18 kg) in the United States (the short ton) and 2,240 pounds (1,016.05 kg) in Britain (the long ton). The metric ton used in most other countries is 1,000 kg, equivalent to 2,204.6 pounds avoirdupois.
Tonnage, in shipping, the total number of tons registered or carried or the total carrying capacity. Gross tonnage is calculated from the formula GT = K1V, where V is the volume of a ship's enclosed spaces in cubic metres and K1 is a constant calculated by K1 = 0.2 + 0.02 log10 V.
Crusher run, with its angular facets, allows greater interlocking and stability than smooth rocks. Crusher run is a type of gravel that consists of angular, crushed rock ranging in size from 3/4-inch to silt.
Length in feet x Width in feet x Depth in feet (inches divided by 12). Take the total and divide by 21.6 (the amount of cubic feet in a ton). The final figure will be the estimated amount of tons required.
Trucks One Ton Dump Truck Capacity: 1-3 Cubic Yards Six Wheel Dump Truck Capacity: 3-8 Cubic Yards Triaxle Dump Truck Capacity: 8-20 Cubic Yards Trailer Dump Truck Capacity: 20-26 Cubic Yards
Ton Register to Cubic Yard Conversion Table Ton Register [ton Reg] Cubic Yard [yd^3] 5 ton reg 18.5185185185 yd^3 10 ton reg 37.037037037 yd^3 20 ton reg 74.0740740741 yd^3 50 ton reg 185.1851851852 yd^3
A cubic yard is the volume of a cube with the length, width and height of one yard (3 feet or 36 inches). One cubic yard is equal to 27 cubic feet. To help you picture this, the volume of two washing machines is just over a cubic yard.
A cubic yard is a measurement that is 3 feet by 3 feet by 3 feet. A cubic yard measures volume where a ton measures weight. A yard of topsoil usually weighs about 1,800 pounds and a yard of gravel usually weighs about 2,200 pounds.
Measure the length and width of your driveway in feet. Multiply the length by the width to get surface area and divide the result by three because 4 inches is 1/3 of a foot. You now have the volume of gravel needed in cubic feet. Divide the volume in cubic feet by 27 because there are 27 cubic feet in a cubic yard.
My friend Alex the SAG Mill Expert, says this equation you picked up doesnt look right.The numerator is calculating the volume of one swing of a jaw, times thedensity of material in the chamber, times the number of cycles perminute. This should give you the mass of material crushed per minute.
The example youve given is missing information needed to calculate theA term it doesnt tell you the height of the crushing chamber. The two measurements youve got are the top opening width and top openinglength; A should be the jaw throw (not given) times the crushing chamber height (also not given).
Tables hereincontain information that is typical of output from crushers discussed above. The capacities are based on the crusher receiving full, continuous feed of clean, dry, friable stone weighing 100 lb/cu ft.
These capacity tables show several significant differences between the two common types of primary crushers. A jaw crusher has a wider range of settingsgenerally, a maximum of two to three times the smallest setting. The tables also show that for a comparable maximum size of feed and setting, a gyratory crusher has a much greater capacity than a jaw crusher. Thegyratory crusher obtains this advantage only at the cost of greater power to drive the crusher.
The selection of an appropriate primary crusher for a given use has to be based on a consideration of several factors. These are not limited to the design features of the crusher. If the feed is blasted rock from a quarry, the size and method of handling the feed influence crusher selection. For instance, a power shovel is limited by the dimensions of the dipper in the maximum size of rock it can handle well. It may be that the bucket of a 1- yd shovel would be too small to load the maximum size rock allowed in a jaw crusher with a 42-in. opening.
If a 60-in. gyratory crusher is to process material from a quarry where a shovel loads the raw material, the shovel would probably have to have a dipper capacity of at least 5 cu yd to be compatible. It may be more economical to change the blasting pattern to produce larger rock that can be handled by a larger loader-hauler combination and still fit in the primary crusher. Generally, a large reduction ratio will be required of the primary crusher.
If gravel has relatively small maximum particle sizes, a large feed opening is not needed. It may be more economical to feed all of the pit-run material into the primary crusher rather than to remove the part that is already smaller than the crusher setting. That calls for a crusher with a higher capacity. There are many feasible solutions to the crusher selection problem, so the aggregate producer must select crushers with total operations and economics in mind.The selection of reduction crushers is also a complex problem.
The economic selection of any particular crusher depends on the ability of the crusher to handle the maximum size of feed, reducing this at the highest possible reduction ratio and least cost for the original installation, maintenance, and power. For any particular aggregate production plant, it is advisable to make preliminary determinations of the types of crushers needed. If most of the feed is coarse and stage crushing is required, primary crushers that meet the requirements of reduction and economy and have straight crushing surfaces may be most economical.
Where only a very small percentage of the feed approaches the size of the feed opening of the crusher,nonchoking crushing surfaces in a high capacity crusher may be advisable for the sake of economy. If the plant requires several stages, and several different types of crushers could be used for each stage, the costs of each feasible combination must be analyzed to find the crusher plant with the least total cost.
So you are planning this great DIY project for the summer that will spruce up your yard considerably. You are quite excited, but there is just one problem: It requires crushed stone, and you have no clue how to calculate how much you will need.Crushed stone is a material that is typically used as a base or underlayment, upon which the stuff that actually shows -- for example, the concrete of a patio -- will rest. Guessing is rarely a good solution to such dilemmas when undertaking a big project, so let's look ata (relatively) simple way to figure out the correct amount.
The word, "relatively" is used because a formula is involved. And many of us, as soon as we hear the word, "formula," start quivering with fear. "What, math? Hey, I didn't sign up for this. I just want to do a DIY project. What sadist decided to make math part of it?" This is understandable, so some reassurance is called for. When the formula is actually provided for you (as opposed to your having to think up the formula, yourself), it is really pretty easy to use. All you have to do is plug in some numbers. So take a deep breath and let's get started:
In the construction world, most materials are measured in cubic yards. Multiply the length (L), in feet, by the width (W), in feet, by theheight (H), in feet,and divide by 27. This will tell you how many cubic yards of crushed stone you need.
As an example, let's say your DIY project is a patio, and it calls for the use of crushed stone as a base. If your patio is 20 feet long and 10 feet wide, and you need6 inches of crushed stone for the base, you would plug those numbers into formula, like this:
If your number comes out as a fraction -- and it probably will -- round up. In the example above, you would round the 3.7 cubic yards of crushed stone to 4 cubic yards of crushed stone. It is better to have a little extra than to run short.
Crushed stone is produced by passing stones through a crushing machine at a quarry. Various types of stone are used in this operation, such asgranite and limestone. At the bottom of the crushing machine lies a screen that traps the the crushed stone product (the finer material that passes through the screen is also kept and sold -- as stone dust).
Above, mention was made of using crush stone as a base for various DIY projects, such as those that would involve pouring a concrete slab. But this material has a wide range of applications in the landscape. While it often serves as a base for something else (in which cases no one actually sees it once the project is complete), this is not always the case.
Many builders and gardeners face the task of calculating or estimating the amount of gravel they would need to fill a given space or cover a given area with a layer of gravel. Our gravel calculator is a great assistance in such cases, keeping in mind that the results will only be as good as the entered measurements and density. The process is as follows:
To calculate how much gravel you need to cover a rectangular area you need to multiply the volume by the gravel density. The volume formula for a rectangular (or square) box in cubic feet is height(ft) x width(ft) x length(ft), as seen in the figure below:
For example, to fill a box with a width of 3ft and a length of 6ft, to a depth of 1ft, you need to multiply 1ft x 3ft x 6ft = 24ft3 (cubic feet) of gravel, then multiply that by the density. Our pea gravel calculator handles all this for you given you supply the dimensions.
The volume of a figure with a round foundation is its height times the area of its foundation. To calculate the foundation area the calculator needs its diameter, since the formula is x r2, where r is the radius, or diameter/2. Again, the gravel calculator will do this math for you.
In case the area you are calculating has an irregular shape, things get a bit more difficult, but in general what you would want to do is divide it in several regularly-shaped sections, calculate their volume and gravel requirements and then sum them up together. The one-click copy function of our tool should come in handy. In case you end up with a large number of sections to sum, you might appreciate our summation calculator.
Gravel is a naturally occurring material, consisting of water-born pieces of rock and is found in buried or current stream beds. The peas are usually rounded with smooth surfaces, while other properties depend on "parent rock". You may also encounter "crushed gravel", which is simply larger gravel particles crushed to a smaller desired size.
Gravel is usually sold with a guaranteed maximum particle size, e.g. 10mm, 20mm. This means that no side of any particle will be larger than the specified measurement, which is achieved through screening, usually using industrial automated screeners. Note that a gravel's density depends on this, so make sure to consult the manufacturer's technical specifications for the estimated density which you should then input in our gravel calculator. Typical gravel density (dry) is between 1520 and 1680 kg/m3 (95 to 105 lbs/ft3). If it is mixed with sand the density is around 1920 kg/m3 or 120 lbs/ft3 .
Crushed stone is often used as a material for producing concrete. It is also used as a road base, and in some locations it is used for paving roads, for example Russia has over 400,000 km (250,000 mi) of gravel roads. It is a great driveway base material, bike path base fill, paver patio sub base, walkways, and just general fill material. Some types of gravel offer excellent drainage as water is able to percolate through the stones leaving your property or walkway clean and dry.
Contrary to what you may think, there is more than one type of gravel, both by composition and size of the stones. Selecting the right size and style is crucial for the success of any construction project, as some are more versatile and have a different application than others. For example, landscaping gravel would last longer than mulch or pine straw, making it great for outdoor spaces requiring a durable material, while construction gravel provides solid footing for construction and landscaping. Different types of gravel have different densities and by knowing it you can get a more accurate estimate for the amount of gravel you need.
Gravel is categorized in two main types under the Udden-Wentworth scale: granular gravel (2 to 4 mm / 0.079 to 0.157 inches) and pebble gravel (5 to 64 mm or 02 to 2.5 inches). It is further categorized in several types, listed in the table below :
For small projects, you can buy pea gravel in small bags, but for larger projects, you would need to buy by the cubic yard or by the ton (cubic meter or tonne). Youll need to reach out to a landscaping supplier to purchase this quantity, making sure you also ask about transportation costs. Our tool allows you to enter price per ton (or tonne) to get a price estimate as well.
A cubic yard of typical gravel weighs about 2830 pounds or 1.42 tons. A square yard of gravel with a depth of 2 in (~5 cm) weighs about 157 pounds (~74 kg). The gravel is assumed clean of dirt and other debris.
A cubic meter of typical gravel weighs 1,680 kilograms 1.68 tonnes. A square meter of gravel with a depth of 5 cm weighs about 84 kg or 0.084 tonnes. The numbers are obtained using this gravel calculator.
When calculating the gravel weight, make sure you do not confuse the tonne (metric ton) with the ton (short ton). The first one is used by all countries in the world and is defined to be equal to 1000 kg by the international body of standardization. The ton is currently only used in the United States and is equal to 2000 pounds (2000 lbs). The difference between the two is not huge but can quickly add up to a significant number as the quantity increases.
If you'd like to cite this online calculator resource and information as provided on the page, you can use the following citation: Georgiev G.Z., "Gravel Calculator", [online] Available at: https://www.gigacalculator.com/calculators/gravel-calculator.php URL [Accessed Date: 08 Jul, 2021].
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