Jan 23, 2017· Dodgecrushersare designed with the swingjawfixed at the lower end enabling material to be crushed progressively as they move down the crushing chamber. Dodgecrusheras more effective in crushing tough and abrasive rocks. *Universalcrusher. A universalcrusheris a hybrid of the twojaw crushersabove. The swingjawis fixed at the middle. 2.