Primary Gyratory Crusher

As a key link in the process, these crushers must be chosen to meet capacity and performance requirements. Reliability and service support for years to come are equally important. And with a commercial life of several decades, the technology should also be suitable for future expansions, process changes or variations in feed material.

Investments in primary gyratory crushers are commonly part of bigger expansion or upgrade projects. As a world leader in Materials Handling Projects and Components, SBM has the credentials to design, source, erect and commission the complete processes surrounding a crusher. This applies to turn-key stationary or semimobile installations, including the growing application of in-pit crushing and conveying (IPCC).

SBM offers a complete range of primary gyratory crushers. The mechanical designs of these machines have been fine-tuned over many years and the crushers are well proven in operations globally. Numerous successful installations have recently been made throughout Africa, Asia and Australia. Their massive weight alone brings an assurance of long life which sets the SBM gyratory crushers apart in the market.

Feature of SBM primary gyratory crushers

DURABILITY

The top bearing in gyratory crushers is subject to unbalanced extreme loads. Traditionally, this is a high maintenance item with resulting stoppages in production. The spherical design of the Sandvik spider bearing has completely eliminated the point loading causing such problems. The result no spherical top bearing has ever required replacement! The shrink fi t mainshaft sleeve and threaded collar have eliminated traditional threads prone to fatigue failures on the mainshaft. Also, the metallic contact between the upper mantle area and the mainshaft absorbs forces from crushing big boulders, avoiding damage to the headnut and mainshaft. Durability by design.

PERFORMANCE

Feed materials, from hard and abrasive to soft and sticky, behave differently in the crushing chamber. By optimizing the nip angle and eccentric movement for the actual application, the capacity, output, energy consumption and wear life can be optimized for each individual crusher in the CG series. A correctly designed crushing chamber minimizes slipping or jumping of the main shaft, even with the hardest feed material. Performance by design.

SERVICEABILITY

The concave liners, of manganese steel, literally take a beating. Traditionally, deformation requires trimming with blow torches as the concaves stretch, with total replacement as they eventually come loose. Avoid these costly and unsafe practices. The Sandvik crushers use secured concaves, which are constrained and self tightening between through-bolts and grooves in the shell. Since they are individually replaced and fastened, properly installed concaves cannot detach during maintenance. Serviceability by design.

FLEXIBILITY

A hydraulic cylinder adjusts the main shaft and determines the crusher setting. To utilize the hydraulics beyond wear compensation, Sandvik employs an intelligent control system, ASRi?, which lets you fi ne-tune the crusher during operation. Change the setting with the push of a button

Relative Solutions

• Stationary crushers and screens
• Asphalt crusher
• Typical uses of used crushers
• Mobile Primary Jaw Crusher
• Brick Rubble Crusher
• Quarry Equipment
• Limestone Crushing Plant
• Small Size Stone Crushers
• Feldspar Crusher