jaw crusher for rock

blake jaw crusher

In the history of crushers, both chronologically, and by virtue of its standing in the field of heavy-duty crushing, the Blake jaw crusher stands first in the list. All of the large, heavy-duty primary crushers of the jaw type are built around the Blake principle which, for simplicity and brute strength, is unsurpassed by any mechanism thus far devised for rock and ore breaking.

A sectional view of a jaw crusher which incorporates the Blake double-toggle mechanism is shown below. The Blake crusher in common with all machines of the jaw family is built into a rectangular frame, at one end of which is located the crushing chamber; in fact, the end of the box-frame constitutes the stationary jaw. The movable or swing jaw is suspended from a cross-shaft (swing jaw shaft) at its upper end, this shaft in turn being supported at each end in bearings at the top of the two sides of the crusher frame.

The actuating mechanism consists of the eccentric-shaft (also supported in bearings in the sides of the frame), the pitman, and the pair of toggles, which span from swing jaw to pit-man, and from pitman to rear end of the frame. The motion of the eccentric-shaft is transmitted through the pitman to the inner ends of the toggle pair, and through their action to the lower end of the swing jaw, which pivots around the supporting shaft at its upper end. The motion is similar in one respect to that of the standard gyratory crusher, in that it is greatest at the discharge opening, and gradually decreases toward the upper part of the chamber.

The Blake Jaw crusher frames have been the subject of considerable variety in details of design and have been built of several different materials. Originally all frames were of cast iron, as was the case with all of the early gyratory machines. Then, as larger sizes were developed, cast steel became the common medium for all large and medium size crushers. When the Superior line was designed, semi-steel was selected for the frame, and steel rods extending through the side members from end to end were provided to absorb the tensile stresses. This type of construction is used in all sizes of this line, except in the 84 machines, where cast steel has been used exclusively up to the present time, these cast-steel frames being reinforced for heavy-duty applications in the same manner as the semi-steel frames of the smaller machines. Of recent years the trend has been very definitely toward the use of welded design, with side members of rolled steel plate, reinforced by stiffening ribs.

In past years both chilled cast iron andmanganese steel were used in jaw plates for the Blake crusher, depending upon the kind of rock to be crushed. The chilled ironplates did not possess the requisite strength to resist breakage, even when used on comparatively soft rock; in our case we have abandoned them in favor of manganese steel on all of our jaw crushers, regardless of size.

This crusher is representative, in its general proportions, of the prevailing practice in Blake crusher design for a number of years. In this respect it is probably just as well entitled to be classed as a standard type as the gyratory crusher which goes by that title. It is true that refinements have been made in almost every detail, as compared to early models, but the basic action and the general proportions of the crushing chamber are much the same.

The original Blake crusher was designed with a vertical stationary jaw. Probably the first departure from this arrangement was an 84 X 66 crusher, built in 1914. This machineconventional design, in that the swing jaw was made vertical. Later, when the Superior line was developed, a compromise between these two extremes was used in several of the sizes; that is, both jaws were sloped. Each of these three arrangements has certain features which are advantageous, and others which are unfavorable. Present indications are that the original arrangement, with vertical stationary jaw, will continue to hold a leading position.

Crushing angles in standard Blake-Type machines generally run in the neighborhood of 27 deg, at the minimum open-side discharge setting. Theratio-of-reduction at minimum recommended settings and with straight jaw plates average about 8:1, in the range of sizes from 15- x 10-in., to 60- x 48-in,, inclusive.

jaw crushers for lab or field - gilson co

Jaw Crushers reduce the particle size of hard rock, ores, minerals, and similar materials in preparing samples for testing. Gilson offers a selection of Bico, Mini, 10in, and Morse Jaw Crushers from standard to heavy-duty, each with unique features and capabilities, and accommodating a wide range of capacities and particle sizes.

8" x 12" jaw crusher - mt baker mining and metals

This is a popular size for the smaller yard or serious ranch/farmer that does not use a crusher full-time and is often chosen over the 6 x 10 jaw crusher, since it has 2 times the throughput and is not much more expensive. We supply this machine with either a 3 phase electric motor or a gas engine. Weve sold many of these as standalone machines, incorporated into our 2 ton per hour Turn-Key Ore Processor, or on a trailer. Applications for use include:

Jaw crushers are the workhorse of the crushing industry for mining, construction, and demolition recycling. Mt. Baker Mining and Metals jaw crushers are industrial grade, continuous duty machines. They take large pieces of rock, ore, concrete, or other materials, and crush them down to smaller sizes, for further processing in a ball mill or hammer mill, or for use in ballast or fill applications.

We bought a turn-key ore processing system that included a hammer mill. The equipment did exactly what it was promoted to do and more. The combination of the jaw crusher with the hammer mill and shaker table did has good if not better than it was advertised by MBMM. I Read More

We have an MBMM 24 x 16 HD turnkey-scrap metal processor. We primarily process 6-8lb motor stators, smaller transformers and radiator ends to separate out the clean copper. We run this hard day after day and are very happy with how it performs and the on-going support from MBMM. This Read More

As a countertop fabricator, stone waste from the edges of the slabs is a constant headache and expense to deal with. We dispose of 5,000 lbs of cut-offs a day and the dumpster fees for disposal was getting out of hand. We purchased a crusher system from MBMM and have Read More

This customer reports they process mostlyPC boards populated with components and sell the concentrated mix of copper, base metals and precious metals to a copper refinery in Poland. Read More

The crusher (16 x 24 Jaw Crusher Module) is great! I probably have 300 hours on it and we are in the process of swapping around jaw plates. I am very impressed with your product and would have no hesitation in recommending you guys. Read More

jaw crusher | crushing plant | hard rock mining equipment | dove

DOVE Jaw Crushersare ideal rock crusher machines, highly efficient and economical for handling Primary and Secondary stone crushing applications of various ores and bulk materials with compressive strength below 320 MPa. DOVE Crushers are supplied in Stationary complex plant configuration, or in Portable and Mobile configuration.

Designed with optimum cavities and height in relation to feed openings of up to (1500 X 1800 mm), DOVE Rock Crushers ensure minimum blockage of the material, higher crushing ratios of up to (1000 TPH), and compact design.

DOVE Jaw Crushers are supplied in large range of two models for Laboratory (0.550 3.0 TPH), and sixteen models (4.5 1000 TPH), for major rock crushing applications in Mining, Construction and Aggregates, Solid Waste processing, Hydropower projects, and various other industries.

DOVE Jaw Crushers effectively in almost most applications used as the main primary crushers, in order to reduce rock size and pass to secondary crusher, where in many cases are also used as secondary crusher.

DOVE Jaw Crushers are highly popular, since they can process large volume of hard rock efficiently, and due to their small physical size design, high efficiency, strong crushing ability and low investment cost, it also make them ideal solution for underground mining and DOVE Mobile crushing plants.

It is designed for rock reduction and crushing of various minerals and rock types with compression strength below 320 MPa, including Iron ore, Copper ore, Gold ore, Quartz, Granite, Basalt, Limestone, River gravel, Sandstone, Shale, etc.

DOVE laboratory will assay your ore samples rapidly and analyze your raw materials and recommend the most efficient processing plant according to the ore specifications, minerals composition, and ore assay results, and your project size and the geologic and topographic conditions of your mine.

DOVE Jaw Crusher consist of the following main components, The Fixed Jaw Plate (Side Plate), Movable Jaw plate, Eccentric Shaft and Spring, Crushing Chamber, Discharge opening outlet, Drive Motor, Belt and Pulley.

The two Jaw Plates are the main working part inside the crusher. One Jaw plate (Fixed plate) is positioned vertical and fixed on the front part wall inside the crushing chamber, the other Jaw Plate (Movable Jaw Plate) is in inclined position opposite the Fixed Jaw Plate. The electric motor drives the Belt and Pulley to make the Movable Jaw plate move back and forth, up and down, through the Eccentric Shaft, against the Fixed Jaw Plate. The raw material enters the Crushing Chamber through the Crusher Inlet and soon as it drops between the two jaw plates, it squashed or split when movable jaw Plate move toward fixed plate and the gap is become narrow.

When Movable Jaw Plate turn back by the movement of the Eccentric Shaft and Spring the material and rock particles, which are squashed and crushed are discharged from the Discharge opening under the jaw plate. The Bulk production is achieved by continuous movement of the Eccentric shaft and the Movable Jaw plate crushing and releasing the crushed rocks through the Discharge outlet.

WE HIGHLY RECOMMEND FORWARDING SOIL SAMPLES OF YOUR MINE TO US FOR ANALYSIS, IN ORDER TO DESIGN AND RECOMMEND THE MOST EFFICIENT PROCESSING PLANT, TAILOR MAID TO YOUR MINE REQUIREMENTS, FOR HIGHEST PRODUCTION RECOVERY.

jaw crushers | mclanahan

Jaw Crushers are used to reduce the sizeof many different types of materials in many applications. The Jaw Crusher was first introduced by Eli Whitney Blake in 1858 as a double-toggle Jaw Crusher. Introduced in 1906, McLanahans Universal Jaw Crusher was one of the first modern era overhead eccentric Jaw Crushers. On the overhead eccentric style Jaw Crusher, the moving swing jaw is suspended on the eccentric shaft with heavy-duty double roll spherical roller bearings.

The swing jaw undergoes two types of motion: one is a swing motion toward the opposite chamber side (called a stationary jaw die due to theaction of a toggle plate), and the second is a vertical movement due to the rotation of the eccentric. These combined motions compress and push the material through the crushing chamber at a predetermined size.

More than 110 years of engineering and customer service experience keep customers running to McLanahan tomeet their production goals. McLanahan Jaw Crushers are proudly made in the USA and have imperial designs. With our grass roots design coupled with listening to customer needs for product enhancement over the years, McLanahan offers traditional hydraulic-shim adjustment Jaw Crushers as well asH-Series Jaw Crushers that featurehydraulic discharge setting adjustment, adjust-on-the-fly chamber clearing in the event the site loses power (once power is restored) and hydraulic relief for overload events with auto-reset.

Whether the traditional hydraulic-shim adjustment or the H-Series Jaw Crushers, both machines have an aggressive nip angle that providesconsistent crushing throughout the entire crushing chamber, which leads to increased production and less downtime on maintenance.

A Jaw Crusher uses compressive force for breaking material. This mechanical pressure is achieved by the crusher'stwo jaws dies, one of which is stationary and the other is movable. These two vertical manganese jaw dies create a V-shaped cavity called the crushing chamber, where the top of the crushing chamber is larger than the bottom. Jaw Crushers are sized by the top opening of the crushing chamber. For example, a 32 x 54 Jaw Crusher measures 32" from jaw die to jaw dieat the top opening or gape opening and54 across the width of the two jaw dies.

The narrower bottom opening of the crushing chamber is used to size the discharge material. A toggle plate and tension rods hold the pitman tight near the bottom of the moving swing jaw. The toggle plate is designed to perform like a fuse and protect the crusher in the event that an uncrushable materialenters the crushing chamber. As a rule, Jaw Crushers have a 6:1 or 8:1 ratio for crushing material. Still using the 32 x 54 Jaw Crusher example, the top size of thefeed entering the crushing chamber has to follow the F80 rule that 80% of the top size feed material is smaller than the gape opening. Using the F80 rule with the 32 x 54 Jaw Crusher, the32 gape opening equals a26 top sized feed, and with the 6:1 ratio of reduction, the discharge setting would be around 4.

Since the crushing of the material is not performed in one stroke of the eccentric shaft, massive weighted flywheels are attached to the eccentric shaft andpowered by a motor. The flywheels transfer the inertia required to crush thematerial until it passes the discharge opening.

While Jaw Crushers are mostly used as the first stage of material reduction in systems that may use several crushers to complete the circuit, the Jaw Crusher has also been used as a second-stage crushing unit. Depending on the application requirements, Jaw Crushers can be used in stationary, wheeled portable and track-mounted locations. The Jaw Crusher is well suited for a variety of applications, including rock quarries, sand and gravel, mining, construction and demolitionrecycling, construction aggregates, road and railway construction, metallurgy, water conservancy and chemical industry.

F100 is the maximum gape opening on a Jaw Crusher. F80 is the feed size to the Jaw Crusher, calculated by taking 80 times the gape opening divided by 100. P80 is the percent passing the closed side setting in tph.

A best practice, if possible, is to blend the material arriving from the source. This will ensure a constant and well-graded feed to the crushing chamber. In turn, this will produce a steady rate of tph andpromote inter-particle crushing that helps break any flat or elongated material. It also aids in equal work hardening the manganese jaw dies and prolonging the life of the jaw dies.

Usually a Jaw Crusher is in an open circuit, but it can be used in a close circuit if the return load is not greater than 20% of the total feed and the raw feed is free of fines smaller than the closed side setting.

Efficiency can be defined by the ratio of the work done by a machine to the energy supplied to it. To apply what this means to your crusher, in your reduction process you are producing exactly the sizes your market is demanding. In the past, quarries produced a range of single-size aggregate products up to 40 mm in size. However, the trend for highly specified aggregate has meant that products have become increasingly finer. Currently, many quarries do not produce significant quantities of aggregate coarser than 20 mm; it is not unusual for material coarser than 10 mm to be stockpiled for further crushing.

jaw crusher - eastman rock crusher

Jaw crusher is a compression style rock crusher, useful in crushing the medium-hard to very hard material into a smaller particle size at primary crushing stage in the crushing circuit.Applicationsmining, quarry, construction waste recycling, aggregate making, etc.MaterialsLimestone, cobblestone, cobblestone, quartz, basalt, iron ore, granite, shale, sandstone, gypsum, and a variety of ores.

Eastman provides you with complete rock crushers and full list of components, original jaw crusher parts, form and function are a perfect fit.If your equipment breaks down, the productivity of the whole factory will be threatened. Critical wear parts are shipped with the goods to ensure they are available when you need them and to reduce maintenance time.Wear parts:

used jaw crushers for sale. metso equipment & more | machinio

1.We are factory and be able to give you the lowest price than market one; 2.Our products have been exported to over 80 countries and widely used in global mining and construction industry; 3.we have a prof...

Trustworthy Jaw Crusher Factory price with Diesel Engine 1. Introduction of Trustworthy Jaw Crusher Factory price with Diesel Engine Jaw crusher which is produced by our company is a high-performance, energy-savi...

1.We are factory and be able to give you the lowest price than market one; 2.Our products have been exported to over 80 countries and widely used in global mining and construction industry; 3.we have a prof...

1.We are factory and be able to give you the lowest price than market one; 2.Our products have been exported to over 80 countries and widely used in global mining and construction industry; 3.we have a prof...

1.We are factory and be able to give you the lowest price than market one; 2.Our products have been exported to over 80 countries and widely used in global mining and construction industry; 3.we have a prof...

1.We are factory and be able to give you the lowest price than market one; 2.Our products have been exported to over 80 countries and widely used in global mining and construction industry; 3.we have a prof...

Factory Price Diesel engine jaw crusher for sale This small size PE series jaw crusher max. feeding size is 130-210mm, output size is 10-60mm, capacity is 1-20 tph. Mining crusher crushing materials including gra...

Small Portable gold crusher hot sale in Australia This small size PE series jaw crusher max. feeding size is 130-210mm, output size is 10-60mm, capacity is 1-20 tph. Mining crusher crushing materials including gr...

China Stone Cruser Equipment pe200 350 pe 250x400 Lab Jaw crusher for sale This small size PE series jaw crusher max. feeding size is 130-210mm, output size is 10-60mm, capacity is 1-20 tph. Mining crusher crushi...

This small size PE series jaw crusher max. feeding size is 130-210mm, output size is 10-60mm, capacity is 1-20 tph. Mining crusher crushing materials including granite, basalt, limestone, river stone, sandstone, ...

used mobile stone crusher for sale stone crusher hammer Product Description used mobile stone crusher for sale stone crusher hammer is mainly used for the processing of materials such as metallurgy, chemical indu...

Mobile crushing plant for sale in russia with cone Product Description Mobile crushing plant for sale in russia with cone is mainly used for the processing of materials such as metallurgy, chemical industry, buil...

Stone crusher plant layout diesel mobile stone crusher Product Description Stone crusher plant layout diesel mobile stone crusher is mainly used for the processing of materials such as metallurgy, chemical indust...