jaw crusher cheek plates | designed for a purpose
The first part of a jaw crushers cheek plate select or design is asking the question: What do I want my crushed rock product to look like? A chrushers cheek plate will help you hold the rock in place will you crush it if you will.
jaw crusher liner plate design & profile shapes
Straight Jaw Plates:Ashows a diagram of a standard type of Blake crusher with regular or straight jaw plates. This type of plate has been the standard from the time of its inception, emulating, in this respect, the straight concaves in the gyratory machine. And it will be noted that the theoretical action in this straight-plate jaw chamber follows quite closely the pattern of the action in the straight-concave gyratory chamber.
Calculations for the jaw crusher chamber are somewhat simpler than in the case of the gyratory because the volumes included between the successive pairs of horizontal lines are rectangular in plan, whereas, in the gyratory we have to deal with annular volumes (actually, a descending spiral, rather than flat rings). But, when the line-of-mean-diameters in the gyratory chamber parallels to a close approximation, at least the centerline of the crusher, the general characteristics of the two crushing chambers, with respect to ratio-of-volume reduction and concomitant reduction
in percentage of voids are similar. Crushing angles and throws would of course have to be the same for the comparison to be exact.
There is one readily discernible difference between the two diagrams we are comparing; the drop per stroke in the jaw crusher diagram is noticeably smaller. This difference is most pronounced in the upper part of the chamber. The reason for the difference is two-fold. In the particular machines selected for these diagrams, there is a difference of several degrees of crushing angle in favor of thegyratory; this accounts for the average difference over the full depth of the chambers. Secondly, the motion of the swing jaw, at the top of the crushing chamber is, proportionately, smaller than the movement at the top of the gyratory chamber. The reason for this is that the distance from the top of the crushing chamber to the fulcrum-pointas compared to the total length from discharge-point to fulcrum-point is smaller in the case of the jaw crusher. This is generally true of Blake-type crushers as compared to gyratories except for the vertical swing jaw type, in which the swing jaw is carried up some distance above the top of the stationary jaw.
The close proximity of the fulcrum-point to the receiving opening gives the type of crusher we are considering enormous leverage on large blocks of stone, and the small motion tends to decrease the shocks incidental to gripping and shattering such blocks. From the capacity standpoint, the smaller drop per stroke is compensated for by the fact that the jaw crusher speed, for comparable sizes, is higher than the eccentric-speed of the gyratory.
Non-choking Jaw Plates:When the non-choking concave demonstrated its capabilities in the gyratory crusher, it was only natural that the principle should be applied to the jaw crusher. But, inasmuch as the Blake-type jaw is used very largely for primary breaking, where maximum receiving opening is, more often than not, a controlling factor, the application of non-choking plates to standard machines of this type has one unfavorable aspect, as will be evident from an examination of BStandard Blake jaw crusher non-choking swing jaw plate. This diagram shows the same machine asthe last one considered, except that the swing jaw is fitted with a curved jaw plate.
These non-choking jaw plates have been developed in two styles, reversible and non-reversible. The advantage of the reversible design has been outlined in connection with its application to the gyratory reduction crusher. For both types of jaw plate, the effective receiving opening is reduced, as compared to the standard, straight-plate setup. For the non-reversible plate, this reduction is determined by the actual increase in depth of the plate, resulting from the introduction of the curve. For the reversible plate, it is established by the point where the tangent to the curved surface coincides with the maximum angle of nip for the material being crushed. Similar restrictions were outlined in our discussion of non-choking concaves in gyratory crushers.
Regarding the reversible plate, it should be noted that, while that portion of the chamber above the point of nip does no crushing, it does constitute an active receiving hopper and, as such, is of definite value in minimizing bridging across the receiving opening. For applications which do not require the full rated receiving opening of the crusher, non-choking jaw plates offer a substantial improvement in performance, an improvement comparable to that resulting from the substitution of non-choking concaves in the gyratory crusher. While this is readily apparent from a comparison of the two diagrams we have presented, more concrete evidence is contained in the table of capacity ratings, which gives ratings for both types of jaw plates, for sizes up to, and including, the 6048 machine.
cheek plates - jaw crusher parts | clifton steel
The cheek plates lining the inside of the jaw crusher cavity are subject to both high stress (during the crushing cycle) and low stress (between crushing cycles) abrasion.This abrasion wears away the material from which the cheek plates are made.
Clifton Steels Tensalloy Blue material is a tough, abrasion resistant material designed for this type of application.Cheek plates made from Tensalloy Blue are easy to install and last longer to keep jaw crushers productive.
For Extreme Applications & Media being processed,Clifton can also supply Cheek Plates inTensamang (11-14% Hadfield Grade Manganese Work Hardening Steel)&Clif-Clad Chromium Carbide Overlay, machined complete to your custom request.
jaw crusher spare parts | sinco
Sinco Jaw plate is manufactured with High Manganese steel of Mn13Cr2, Mn14Cr2, Mn18Cr2, Mn22, ASTM A128 Gr A & B2 & B3, BS 3100 Gr BW10, SABS 407 Type 1 & 2 or other customized material.Through special heat-treatment process and With special chemical composition, Sinco jaw plate has a service life 30% longer than those of traditional high manganese steel!
The solution is available for the most demanding crushing and recycling applications, stationary as well as mobile. Our jaw crusher manganese wear parts are designed for hardest rock in surface and underground operations.
Whats more, we manufacture our jaws to your specifications within 15days of receipt of an order. For one container order, we can finished within 30 or no more than 45days. So youll get what you need fast with minimal downtime. Not to mention, we stock a large number of replacement jaw castings for most crushing equipment which means well likely be able to get your order to you fast.
We produce wear-resistant, high temperature-resistant, corrosion-resistant metal casting with the annual production capacity of over 15,000 tons. Our products are mainly used in mining, metal recycling, cement machinery and other industries.
L.S.W. Wear Parts is your best choice to supply all your crusher wear part requirements. We distribute a full line of crushing wear parts from ESCO. In the most abrasive conditions ESCO crusher wear parts provide proven, long-lasting performance. ESCO engineers and field technicians know what you're up against and can provide solutions to meet your cost-per-ton and end-product requirements. Superior Alloys. Superior Designs. Superior Service.
ESCO replacement crusher jaws are designed to last longer and crush more efficiently, while reducing wear and tear on the crusher and producing better quality rock more consistently than original equipment jaws.ESCO offers a full range of options including various tooth designs, curves and alloys, and options for special applications such as smooth jaws with peening slots, solid end jaws, slab breaker jaws, Hi-Life designs, and solid centers.
ESCO supplies replacement wear parts to fit all major cone crusher models. Every ESCO mantle and bowl liner frame-fit surfaces are precision machined to tolerances that meet or exceed those of the OEM parts to ensure optimum performance.
Get a Grip with ESCOESCO gripper slot bowl liners are specifically designed to permit oversized rock to enter the chamber and keep the feed opening clear. An excellent choice for cobblestone and river rock material that is typically difficult to grab. The result is more even wear and improved production.
Main Frame Cone Crusher LinersESCO also fabricates main frame liners and inserts that provide an economical alternative to OEM parts. Premium ESCO AR 400 and AR 500 wear plate, and Infinity chromium carbide overlay plate offer a wider choice to address wear protection.
Main Frame Cone Crusher LinersESCO also fabricates Main Frame Liners and inserts that provide an economical alternative to OEM parts. Our selection of ESCOALLOY 400 and ESCOALLOY 500 plates, and chromium carbide overlay plate offers a wider choice to address wear protection.
The ESCO package of superior designs, proven alloys and expert local service provides solutions for gyratory applications. ESCO also offers accessory items for gyratory crusher including rim liners, spider caps and spider arm liners.
Double high segments allow 2 rows of ESCO concaves to replace 4 rows of OEM designs allowing faster replacement. Eight ESCO concaves replace 12 per-row OEM segment concaves, reducing the number of seams that can wear and increase maintenance costs.
Tapered dowel pins are driven between concaves to improve contact with the top shell and create even spacing. The key concave has parallel sides and is easily removed with a wedge allowing the remainder to be easily replaced.