The right jaw design can make a big difference for your jaw crusher. Our customers have proven that the right jaw plate design can make a dramatic difference, depending on the application. We have many case histories in which wear life increases of 50% are common, and some in which wear life increased up to 300%.
Jaw crushers reduce large rocks or ore by means of compression. Mechanical pressure is applied using the crusher's two jaws; one is fixed while the other reciprocates. There are also primary and secondary types of these crushers.
Jul 27, 2017 · Smooth dies or not they all do it now and then when fed hard round rock due to what is called the nip angle. When worn out, like most seen at a show, the problem is worsened. They are reasonably safe when crushing bricks, limestone, shale etc but personally I would not run one at a show without a heavy plate over top of the jaws.
Toobtain the largest possible opening no thicker shim should be used than that required with regardto a suitable nip angle. Vertical adjustment of the Fixed Jaw plate when altering the crusher setting the moving jaw is swung forward and upwards or backwards and downwards, thus altering the vertical position of the movable jaw plate.
Sandvik jaw crushers are of the single-toggle type with advanced features for optimized performance, easy maintenance, long life and a low cost per ton. These crushers feature a deep, symmetrical crushing chamber, easy settings adjustment, a large feed opening for its size, and an ideal nip angle that offers smooth material flow and high reduction efficiency.
Dec 10, 2008 · The Universal jaw crusher is now available in a new series offering "Adjust-on-the-Fly" technology. Units feature an aggressive "nip angle" and "consistent crushing force" over the full face of the chamber, as well as longer stroke length and steeper toggle angles than traditional units.
The main factors affecting the general jaw crusher are nip angle and number of revo... lutions. Dynamic nip angle is the angle between the jaw and the fixed jaw. According to calculate the maximum nip angle up to 32 degrees. The actual use are less than 25 degrees, usually about 18-20 degrees.
A larger feed opening increases material intake and ensures that the rocks enter the jaw crusher's cavity without restrictions. A steeper nip angle decreases operating costs by reducing wear on jaw dies and speeds up material flow down in the cavity. The stroke is amplified from top to bottom, leading it being longest in the bottom of the cavity.
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A long chambered jaw crusher usually has a smaller nip angle. • The discharge opening is the major factor for determining production capacity. The width will remain the same, but opening and closing the discharge setting will affect both the maximum discharge stone as well as the tonnage capacity.
This provides a far more efficient angle of nip, enabling the jaw plates to grab material more effectively and produce higher capacities than other machines with the same size feed opening. Made of high-strength cast alloy steel, these extra long jaw plates are designed for maximum crushing capacity.
Jan 01, 2016 · The capacity of a jaw crusher is given by the amount of crushed material passing the discharge opening per unit time. This is dependent on the area of the discharge opening, the properties of the rock, moisture, crusher throw, speed, nip angle, method of feeding and the amount of size reduction.
Dec 09, 2014 · • Jaw Crusher • Jaw crusher is a type of crusher which produces coarse particle. • Feed size of the jaw crusher is 1500mm-40mm and the product size is from 50mm-5mm. • Compressive strength of jaw crushers is 320 mega Pascal. • Rpm for jaw crusher is between 200- 400. 6.
Jaw crushers process medium to hard quarry rock or other materials by compressing it between the fixed jaw and the swing jaw. The swing jaw being the moving part is attached to a rotating eccentric shaft. The fixed jaw is an integral part of the crusher frame. Both jaws are fitted with manganese jaw liners that can be replaced or reversed when worn.
Longer jaw dies and reduced nip angle easily produce more tonnes per hour, with no blowback. All units come standard with dual balance fly wheels, dual toggle rods, and hydraulic assisted adjustment. These units are fed by vibratory grizzly feeders or prescreen decks. Units are mounted at a 7-degree angle towards the feeder to assist in even ...
The 2056 Vanguard Jaw Crusher features a 20 by 56 in. (50.8 by 142 cm) jaw crusher that is ideal for sand and gravel applications. KPI-JCI and Astec Mobile Screens has expanded its Vanguard product line with the more compact 2056 Vanguard Jaw in efforts to meet every producer's operational needs.
On top of great performance, a good nip angle also reduces wear on the jaw dies and that has a direct impact on operating costs. High production and reduction: Jaw crushers are well known for the aggressive motion of the pitman and long stroke in the bottom of the cavity.
Nov 20, 2013 · Jaw crusher nip angle should be designed with the concept of a more accurate description of the work state nip angle, is to the mobile jaw crusher plate points to its direction of movement direction of force, and then nip angle design, we can achieve reasonable nip angle design value, thus improving the work of the jaw crusher effect
The 911MPE-JAC34 or 3" x 4" (75 x 100 mm) is our biggest Small Jaw Crusher. Handcrafted in Canada, is designed crush rocks/ore of any type (gold, silver, copper, granite, cement, bricks, etc.) 3" (75mm) in size down to 50% passing its CSS closed side setting of 1/8". With a 375 RPM overhead eccentric, and equipped of a 3 HP electric motor or 6.5 HP gasoline engine, this small primary rock ...
A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.
Jaw Crusher. Jaw crusher is used for crushing all kinds of ores and rocks with compressive strength below 320MPa. It is generally used for primary crushing of materials. The machine is widely used in mining, building materials, metallurgy, electric power, water conservancy, transportation and many other fields.
Jaw Crushers are used to reduce the size of 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, McLanahan's Universal Jaw Crusher was one of the first modern era overhead eccentric Jaw Crushers.
Side of the crusher fitted with a grooved pulley couple to the crusher drive. NON DRIVE SIDE Opposite side of the crusher form the drive side. FLYWHEEL Large wheels used as part of the crusher drive and to store inertia. NIP ANGLE Inclusive angle between jaw plates indicative of the crushers ability to crush and draw rock. JAW PLATES
Sandvik CJ815 single-toggle jaw crusher is engineered for even the toughest applications thanks to its heavy-duty design. Characterized by an attention to detail in its design and manufacture, this machine is an excellent choice when you need high production and low total cost.
• Low jaw plate wear • Large feed acceptance capability These four factors are closely linked and the Sandvik jaw crusher provides a good balance. The de-sign of the deep symmetrical crushing chamber maximizes feed size, capacity and reduction. An optimized nip angle ensures that the material progresses smoothly down through the crus-
Features include Bolted Jaw frame, high nip angle, hydraulic wedge adjustment and pitman toe protection. The impressive and very large 5978 (2000 x 1500mm) Jaw Crusher weighs in at around 135,000kgs. This is one of the heaviest duty jaw crushers in the world!
Nov 01, 2001 · The actual variation in nip angle over a 60 degree roll rotation is illustrated in Figure 2, which also shows the nip angle generated under similar conditions in a cylindrical roll crusher of comparable size. These nip angles were calculated for a 25mm diameter circular particle between roll of approximately 200mm diameter set at a I mm minimum ...