When the width of the ore mouth is greater than 600 mm, it is determined to be large; the width of the ore mouth is 300-600 mm, which is determined to be medium-sized; the width of the ore mouth is less than 300 mm, which is defined as a small jaw crusher. Stainless Steel Railing Post,Stainless Steel Balustrade Posts,Stainless Steel Wire Balustrade Posts,Stainless Balustrade Posts DONGYING SHENGYU METAL PRODUCT CO.,LTD , https://www.shengyucasting.comThe size of the jaw crusher is indicated by the width and length of the mine mouth. For example, a crusher with a width of 600 mm and a length of 900 mm is indicated as a 600 x 900 jaw crusher.