Offered secondary impact crusher machine is perfect for crushing of minerals and ores having specific hardness (5.5 as per Mohs scale.) The crushed form of minerals and rocks has uniform size. This secondary impact crusher machine is suitable for effective crushing of dolomite, limestone, rock salt, sandstone etc. Excellent reduction ratio, crushing speed adjustment facility, easy to replaceable type and interchangeable type wear parts and large production capacity are some unique features of this machine. This system is equipped with primary chamber where the specific material is reduced initially. Then the material is transferred to its secondary chamber by front breaker plate for final reduction in size.