Gyratory crushers are principally used in surface-crushing plants. The gyratory crusher (Figure 6.5) consists essentially of a long spindle, carrying a hard steel conical grinding …

I have experienced many problems due abnormal power draw behavior of the electric motor in a primary gyratory crusher in iron ore crushing, especially when the service life of the first row concave comes to an end. I suspect that the current eccentric throw of the mainshaft (52mm) is higher than is really necessary.

Crusher Close Side Settings. 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 manufacturer will be able to advise the operator about these special throws for machines of his make.

The gyratory crusher is the main coarse crushing equipment for iron ore [2, 3], its performance directly affects the quality and cost of subsequent iron purification. ... The eccentric angle affects the compression ratio of the crushing chamber and the size of the discharge port, both of them have influences on the crusher discharge granularity ...

Combines all advantages of a common gyratory crusher ... Eccentric speed Approx. 137 rpm Gap setting range OSS130 – 200 mm monitoring system Gyramatic Direct drive with hydraulic safe-set coupling Installed drive motor power4 Up to 650 kW Weight and dimensions Total weight5 Approx. 209,000 kg

Well-designed crushing chambers built from strong materials make a fulcrum point that ensures a constant eccentric throw, guaranteeing up to 90% of feed opening. Secure, …

With a primary gyratory crusher running at a given countershaft speed, capacity is increased as eccentricity is increased. At a given eccentricity, greater capacity results from higher countershaft speeds. Conversely, reducing either the speed or eccentricity reduces capacity. Eccentricity, in a …

Chen et al. [24] discussed the influence of the concave curve radius, eccentric angle, and mantle shaft speed of the gyratory crusher on the crushing chamber performance based on the DEM analysis ...

The Gyratory Crusher is made up of six main components, Base, Main frame and concave liners, Drive assembly, Mantle, Spider arm assembly, Oil system. The base is the section of the crusher that provides an entry point for the drive assembly and oil system. It also provides support for the working surface of the main frame and liners.

Well-designed crushing chambers built from strong materials make a fulcrum point that ensures a constant eccentric throw, guaranteeing up to 90% of feed opening. Secure, self-tightening concaves prevent liners from coming loose. ... CG830i Gyratory crusher : 380 (419) 1,525 (60") 2,700-6,000 (2,980 - 6,610) CG850i Gyratory crushers: 500 (550 ...

Fitted with CS430 "S" type gyratory cone crusher, it is capable of accepting large feed sizes whilst achieving high production capacities. QS332 Mobile unit US316 ... The crusher has a robust design, adjustable eccentric throw, and a constant intake opening. This crusher is suitable for a high-capacity secondary crushing application.

Well-designed crushing chambers built from strong materials make a fulcrum point that ensures a constant eccentric throw, guaranteeing up to 90% of feed opening. Secure, …

The Kennedy Van Saun "S" and the A-C Newhouse were known as gearless crushers as the drive motors are directly connected to the eccentric. This type of secondary gyratory …

The eccentric roller crusher mainly consists of an integrated static grizzly, fixed concave plate, roller, and eccentric shaft, as shown in Fig. 1.And the physical eccentric roller crushers are shown in FL (2022).Compared to gyratory crushers, the primary characteristic of eccentric roll crushers is a reduction in the overall …

3,250- 6,550. 3,450- 6,900. 3,650- 7,300. 1) Crusher capacity calculated based on a typical run-of-mine feed material with an average raw density 2.6t/m3 and max. feed size less or equal to 80% of crusher feed opening. Actual values are depending on feed material characteristics (e.g. hardness UCS, feed particle size distribution, moisture ...

In the single toggle jaw crusher, an eccentric shaft is on the top of the crusher. Shaft rotation causes, along with the toggle plate, a compressive action. ... The gyratory crusher has no rival in large plants with capacities starting from 1200 t/h and above. To have a feed opening corresponding to that of a jaw crusher, the primary gyratory ...

The Jaw Gyratory Crusher Pro is engineered to handle bigger chunks of material than comparable gyratory crushers of the same mantle diameter. This gives you greater flexibility in your crushing operation, and reduces the tendency for bridging in the feed zone. ... Eccentric removal trolley ; Concave mounting rack ; Concave dismantling device ...

CG800i Gyratory crusher brochure Capacity (by hour) 2,700 - 6,000 mtph (2,980 - 6,610 stph) Feed opening 1,525.0 mm (60.0 in.) ... Well-designed crushing chambers built from strong materials make a fulcrum point that ensures a constant eccentric throw, guaranteeing up to 90% of feed opening. Secure, self-tightening concaves prevent ...

The gyratory crusher model is PXZ1417, and its specific structure is shown in Fig. 1. The crusher is composed of external shell, mantle shaft, sliding bearing, friction disc and other parts. The sliding bearings include the beam bushing, eccentric bushing, and frame bushing. The failed component in this case is the eccentric bushing.

The gyratory crusher is widely used in primary crushing of metal ore such as iron ore and copper ore due to its high productivity and ... the eccentric angle, and the mantle shaft speed on gyratory crusher performances is analysed by the method of RSM and analysis of variance (ANOVA). Based on this, The Design-Expert software is used …

Eccentric removal trolley Spider maintenance platform Concave mounting rack Concave dismantling device (Concave pans) Main shaft stand Hydraulic nuts Enclosure of hydraulic unit, comparable to IP 54 Different liner configurations etc. Gyratory Crusher KB 63-130 Pro High-performance primary crushing for capacities above 14,000 mtph

DOI: 10.1016/j.engfailanal.2023.107630 Corpus ID: 261800193; Failure analysis of eccentric bushings in large gyratory crusher @article{Liu2023FailureAO, title={Failure analysis of eccentric bushings in large gyratory crusher}, author={Zhengbin Liu and Qiushi Bi and Jianbo Guo and Gang Liu and Mingxing Zhou and Qingxue …

Superior™ MKIII crushers bring higher capacity making this crusher the most capex efficient primary gyratory crusher in the industry. Reduced downtime. Superior™ MKIII primary gyratory crushers have new sets of shells and concaves, which have been implemented after countless hours of research and development.

A crusher' surge pocket, sometimes called a " rock box ", is found directly below the primary gyratory crusher. It provides limited storage, normally about two truckloads, to enable smooth feeding of …

opening. Gyratory crushers can be used for primary or secondary crushing. The crushing action is caused by the closing of the gap between the mantle line (movable) mounted on the central vertical spindle and . the concave liners (fixed) mounted on the main frame of the crusher. The gap is opened and closed by an eccentric on the bottom of the

The CG800i connected crusher series gives you the high reduction efficiency, performance and ... 4 THE NEW CG800i CONNECTED GYRATORY CRUSHERS. HIGH REDUCTION, GREAT CAPACITY Well-designed spider bearing built from strong materials make a fulcrum point that ensures a constant eccentric throw, guaranteeing up to 90% …

GYRATORY CRUSHERS. The original patent for the gyratory crusher was granted to Phile- tus W. Gates in 1881. This fint crusher was used by the Buffalo Cement Co. At the time these early gyratory crushers were developed all mining and quarrying, either underground or open pit, was done by hand; tonnages generally were small and product ...

The core of the Superior™ MKIII 54-75 primary gyratory crusher is the robust design. Resistant U-shaped arched spider, durable manganese bronze spider bushing, new shell separators and inspection ports, as well as hardy one-piece main shaft makes the Superior™ MKIII 54-75 primary gyratory crusher efficient and lasting, but easy to …

Gyratory Crusher Components. Key components of a gyratory crusher are: Spider Assembly & Bushing; Top & Bottom Shell Assemblies; Main Shaft; Mantle & Concaves; …

Our Gyratory Crusher Pro offers our customers high-performance crushing operations under toughest conditions from -40°C to 50°C - whether it is the heat of the Australian summer or the cold of the Norwegian winter.. Built for ultimate performance and easy maintenance, this hard rock crusher excels at the crushing of medium hard to hard rock …