design and operations challenges of a single toggle jaw crusher. ... Know More. jaw crusher working principle. 2 jul 2018 jaw crushers double toggle jaw crushers single toggle jaw dodge bottom pivot gives closer sized product than blakebut dodge is... Know More. mobile stone crushers granite crusher. Jul 07, 2020 The primary jaw crusher is usually designed with a square opening, while the secondary jaw crusher is designed with a rectangular opening. However, not all jaw crushers conform to this general rule. The jaw crusher is composed of two jaws, one is fixed firmly with the crusher frame, and the another is being mount by a pitman mechanism.