Jaw Crusher,Small Jaw Crusher,PE Jaw Crusher,Mini Jaw ...
Jaw Crusher Parameters. Stroke (LT) Minimum and maximum movability of the lower end of the jaw. This is equal to the OSS minus the CSS. R: Size reduction ratio. The ratio of the gape width to the near side jaw opening. This ratio may vary from 1/3 to 1/9, but is generally 1/3 for primary crushers and 1/4 for secondary crushers.