Differences between Fixed and Movable Jaw Plates in Crusher Jaw Plates
1. Installation Position:
Fixed Jaw Plate: Installed on the fixed jaw (fixed jaw plate) of the crusher, its position is fixed and it acts as the "fixed wall" of the crushing chamber.
Movable Jaw Plate: Installed on the moving jaw (movable jaw plate) of the crusher, it moves with the moving jaw and acts as the "moving wall" of the crushing chamber.
2. Movement State:
Fixed Jaw Plate: Remains stationary throughout the operation, without displacement, serving only as a "support surface" for crushing.
Movable Jaw Plate: Performs periodic oscillating or squeezing movements (approaching/moving away from the fixed jaw plate) with the moving jaw, acting as the "power surface" actively involved in crushing.
3. Core Functions:
Fixed Jaw Plate: Forms the crushing chamber through its own tooth shape and cooperation with the movable jaw plate, bearing the reaction force when material is squeezed, assisting in the crushing process.
Movable Jaw Plate: Actively squeezes and impacts material towards the fixed jaw plate, utilizing the shearing and squeezing action of its teeth to crush large pieces of material into the required particle size, acting as the primary executor of the crushing action.
4. Different Structures and Wear Characteristics
Fixed Toothed Plate: Has a thicker and more stable structure, distributes force evenly, wears relatively smoothly and evenly, and has a slightly longer service life.
Moving Toothed Plate: Due to frequent movement and impacts on materials, it experiences complex forces (impact + compression), resulting in more severe and uneven wear (usually the tooth tip and tooth surface wear faster), and requires more frequent replacement than the fixed toothed plate.
