• McNally Sayaji Engineering Limited

Single Roll Crushers

McNally Sayaji Engineering Limited (MSEL) is one of India’s leading manufacturers of crushing, screening, milling, material handling and other heavy equipment, serving the core sectors of the economy. These sectors include coal, mining and mineral processing, power, steel, ports, cement, aluminium and non-ferrous metals. The company offers Single Roll Crushers, an ideal primary breaker for crushing coal, medium-hard limestone, ores, etc. They can be built-in large sizes to handle high capacities and run-of-mine large pumps. Constructional features: rotor assembly fitted with toothed crushing rings with special tooth profile to suit individual application; housing – structural steel fabricated from heavy section/plates duly stiffened by ribs; rotor assembly consists of circular crushing range of manganese-steel/wear-resistant steel having hexagonal bores mounted on fabricated hexagonal rotor body; breaker plate – structural steel fabricated heavy section/plates duly stiffened by ribs; shaft and bearing – high-strength alloy forged steel shaft is mounted on amply dimensioned self-aligning spherical roller bearings; spherical roller bearings have taper sleeves for easy removal; gap setting arrangement – by moving the breaker plate through specially designed spindle which ensures parallel movement as well as uniform gap throughout the width without skew loading; gap adjustment can be carried out while the crusher is in operation; and safety device – breaker plate is supported on spring unit which deflects under excessive pressure when uncrushable material passes through. Spring pressure can be suitably adjusted without disturbing the gap setting. The power is transmitted from motor through coupling, V-pulley/belts and then to open pair spur pinion on counter shaft and gear on rotor shaft. Pinion is made of special alloy steel and gear is made of case steel for heavy-duty application. Lubrication: grease nipples are provided on all bearings and moving parts for manual greasing. Motorised or hand-operated centralised grease lubrication can also be provided.