The reduction ratio is driven by the Crusher Close Side Setting.Get A Quote
When it is necessary, or desirable, to operate a gyratory crusher at discharge settings below the minimum standard, the safe procedure is to fit the machine with a reduced throw eccentric. The crusher manufacturerwill be able to advise the operator about these special throws for machines of his make.
If a reduced throw eccentric is installed, the capacity at any given setting will drop off approximately in direct proportion to the reduction in throw. In some cases it is possible to compensate, partially at least, for this drop-off by speeding up the machine. Here, again, the manufacturer will be able to advise the operator as to the maximum safe speed for any particular crusher of his line.
When viewed from the side, the movement of the mantle is like that of a pendulum. The arc of motion increases from ero at the spider to a maximum at the base. The displacement at any level is the throw at that level. The throw at the choke point is of particular importance, since this measures the displacement at the bottleneck point in the crushing chamber. At this level Throw OSS 8211 CSS A crusher that has a 20cm throw is one where the mantle surface approaches and recedes from the concave through a distance of 20cm as measured at the level of the choke point.
It is obvious that the coefficient-of-friction of the material to be crushed has a very direct bearing upon the maximum permissible crushing angle. Some slippery materials, even though quite soft, require special reduced angle crushing chambers. In the standard gyratory crusher this is accomplished very simply by increasing the thickness of the concaves at the top, and tapering them down toward the discharge in the jaw crusher the change is generally made by inserting a wedge-shaped filler behind the liner plates on the movable jaw.
For a given coefficient of friction, the harder the material is, the smaller will be the maximum permissible crushing angle. Extremely hard, tough materials even though their coefficient of friction be fairly high may require special reduced crushing angles to prevent excessive slipping. Anyone who has seen hard granite boulders shoot out of a gyratory or jaw crusher, or has watched a wide-angle crusher at work on hard granite or trap rock, has had a visual demonstration of this physical fact.
A certain amount of slippage occurs in all pressure type crushers, regardless of how small the crushing angle may be that is, within practicable design limits, especially in the lower part of the crushing chamber where the nieces are smaller and lighter. Under normal operating conditions this tendency is counteracted by the weight of material in the upper part of the chamber. Another method of compensation is to break the angle of the lower tier of concaves to provide a more favorable crushing angle in this one.
Feed openingFeed opening depth of the cavity defines the maximum feed sie of the crusher. In the C jaw crusher, the feed opening is measured from the top of the tooth of the fixed jaw to the bottom of the tooth of the movable jaw in a straight line perpendicular to the center line of the crushing cavity.The maximum feed sie is approximately 80 of the feed opening.
Open side setting OSSThe open side setting is measured when the crusher is at rest. The setting is measured either top to top, or bottom to top, depending on the tooth profile of the jaw dies.
Closed side setting CSSThe closed side setting can be calculated by deducting the stroke from the OSS. CSS is the most important crusher parameter since it defines the maximum product sie and has significant bearing on capacity, product gradation, power draw, and wear.
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With hydraulically adjustable CSS, the option of automation, a choice of several different crushing chambers, and many other high-performance features, the CH440 Cone crusher is versatile, user-friendly and highly productive. The CH440 Cone crusher can be matched to changes in production through the selection of crushing chamber and eccentric.
Our CH440 Cone crusher is of advanced design with a small footprint and high capacity in relation to sie. The CH440 offers high reduction efficiency and very good product shape.
With hydraulically adjustable CSS, the option of automation, a choice of several different crushing chambers, and many other high-performance features, the CH440 Cone crusher is versatile, user-friendly and highly productive.
Several standard crushing chambers are available for each model. The crushers can easily be matched to changes in production by selecting the right chamber and eccentric throw. The chambers available areEF Extra fineF FineMF Medium fineM MediumMC Medium coarseC CoarseEC Extra coarse.
Our sophisticated HYDRO-CONE technique enables you to run your crusher at maximum performance levels under changing feed conditions without overloading the crusher. Together with our automatic control system you will have a crusher which safely maximies operational uptime.
When the CH440 cone crusher is equipped with our automatic setting system it automatically adapts the crusher to variations in feed conditions. By continuously measuring and compensating for crusher liner wear, the automation system allows you to fully utilie crusher liners and schedule liner replacements to coincide with planned maintenance stops. It also assists in keeping your crusher choke fed. This maximies rock-on-rock crushing, which helps to optimie the quality of your final product.
Reliable cone crusher parts enable stable production without unexpected downtime. The wide cone crusher parts offering consists of wear parts and spare parts for,, and Symons models, as well as many crushers made by other manufacturers. The parts are available as standard or tailor-made according to your application requirements.
The Symons cone is well known for its rugged construction and application Such repairs are uneconomical or impossible to carry out with crushers of.. The manual wedge setting adjustment is and our fully equipped Symons Bergeaud 2 7 standard short head, gyradisc. Spare Parts. QMS design and manufacture.
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