The Cantrol Inc. Laboratory Jaw Crusher is recommended for intermittent or continuous pre-crushing of coarse materials. Jaw Crusher has 4x5 1/2in (100x140mm) feed opening for crushing 2 1/2in (65mm) and smaller feed material to 0.04in-0.20 (1-5mm) and finer at up to 130lbs (300kg) per hour. It performs well in crushing small quantities of materials with varying levels of hardness such as hard quartz to soft claystone. The unit comes standard with 55 HRC hardened steel-chrome alloy jaw. Construction of the crusher features a case-hardened alloy steel eccentric shaft running in heavy-duty sealed needle bearings. The crusher is belt driven by a 3Kw motor with overload and on/off switches, all mounted on a steel base. The Cantrol Inc. is equipped with fixed and movable crushing jaws as well as lateral support walls made of tempered steel. Applications: mining and metallurgy, chemistry, geology and mineralogy, glass industry, ceramics, rocks and soils.