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