Comparision of jaw crushers from Metso, Sandvik and LIMING

LIMING machinery these years has been always targeting Metso and Sandvik as major competitors in the global market and doing every effort to reduce difference technically. Here I am showing you in detail:

Factors resulting in higher performance:
Capacity: For jaw crusher, the major purpose is to obtain higher capacity which is determined by cavity and opening type. To obtain more capacity, Metso, Sandvik and LIMING are all using “V” type opening and deeper cavity, which will ensure same size between nominal and actual feed opening and more material fed. For that of ordinary jaw crusher, feed opening is not symmetrical “V” type and there will be less capacity. For easy understanding, we site the illustration of Sanvik, and you will see the advantage vividly. Meanwhile, there is another advantage of design in feed opening, there is a thick, replaceable deflector plate which is able to protect the tope of the moving jaw from being damanged by the feed material which can straightly fall into the active region for crushing, while there must be a cross-wall for traditional ones.

Modular, non-welded construction
Metso has devoted itself to solving the problem of stress inducers, and developed modular, non-welded construction and won technology monopoly in this field with high premium price. For LIMING machinery and Sandvik, they are solving this problem by physical method with less cost and less premium price. Meanwhile, the advantage of welded frame is that it is equally strong in various directions and there will be no problem of failure on main frame like bolted construction.

As regards eccentric shaft load ability and contamination protecion, Metso Sandvik and LIMING are all using famous brand shaft which can afford more load and better wearness, meanwhile, all companies are using labyrinth seals to protect grease-lubricated bearings from contamination, which will guarantee longer duration of bearings.

For bearing housing, all companies are using single piece cast steel frame bearings, which will guarantee exact match between bearing housing and crushing plant frame and prevent unnecessary material feed into the frame bearings which will trouble a lot for crushers with two piece frame bearing housings. Meanwhile, the automatic lubrication systems for remote alarm indication will ensure protection of the roller bearings.

To ensure high performance, LIMING applied finit element analysis technology which is achieved by large eccentric throw, steep toggle plate angle, which are all targeting effective stroke, right speed , proper flywheel intertia and effective power consumption.

Factors resulting in less cost:
Wedge adjustment system used by all companies ensuring easier and more efficient adjustment, which is supported by hydraulic adjusting station and is impossilbe for tradtional shim adjustment system. Thus, it costs less time offering higher safty and speed at the same time.

To reduce cost of reparing foundations, Metso has developed rubber dampers and stoppers to decrease crushing loads to the foundation and vertical and longitudinal move while LIMING is using anchor bolts which can effectively solve the problem of equipment movement and lean. Clients can choose according to your budget and using habit.

To guarantee longer bearing lifetime, all all companies are incorporating larger and sturdier eccentric shaft bearings than other jaw crushers of comparable size coupled and effective labyrinth seals, which will greatly extend their lifetime. And there is sacrificial parts designed to protect main components of the crusher such as frame, swing jaw and bearings, which will stop the machine firstly through sacrificing itself which is less expensive and easy to change, which will greatly save cost and reduce breakdown time.

Meanwhile, automatic grease lubrication system will greatly solve lubrication time and guarantee higher efficency.

For installation type, all companies can suppy stationary and mobile type, you can choose among them according to your budget, crushing purpose and site requirement.

For service system, all companies are offering standard service and Sandvik and Metso have developed more completed international localization service system, which has been listed and managed for LIMING, in the future years, they will be three leading supplier of jaw crushers in the world serving the world clients with more developed equipment and more considerable service.