OPTIMA SERIES

ROLL CRUSHERS

Quietly efficient

Optima series crushers are quad roll crushers suitable for sizing of friable materials like coal, gypsum, limestone, bauxite, coke, lignite etc. Two pairs of toothed rolls are mounted one above the other to allow for two-stage crushing in a single machine. Reduction is achieved using a combination of Shear and Compression to produce quality output with minimum fines.

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Modular Sleeve Construction

The roll is designed with a modular sleeve type construction. This is done to ensure easy maintenance, good equipment reliability and consistent output

Abrasion Resistant Sleeves

The sleeves, made of abrasion resistant alloy steel castings, are precision machined for good fitment and longer operational lifetimes. Suitable thickness is provided to the sleeves to ensure ruggedness and sufficient wear life

Easy Gap
Setting

Gap adjustment can be done for primary and secondary rolls independently using hydraulics. A common hydraulic cylinder is used to facilitate the gap changes for each set of rolls

Roll
Parallelism

Parallelism is vital as it prevents skewing of the rolls which would be detrimental to the life of the drive system and consistency in throughput. This is achieved by torsion shafts

Tramp
Protection

Protection from un-crushable or tramp material is managed automatically with spring toggle mechanism. The mechanism adjusts the movable roll’s position to allow the tramp to pass through. The spring ensures precise return of the movable roll to the set gap.

Automatic Belt
tensioning

The motors are mounted on spring mounted platforms to ensure automatic belt tensioning while the crushers are in operation. This not only improves the efficiency and longevity of the drive system but also decreases the number of stoppages which contributes to reduced maintenance burden and production loss

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