PEX Jaw Crusher

Introduction

PEX Jaw Crusher is a specialized type of jaw crusher designed primarily for secondary and fine crushing applications in mining and aggregate production . It belongs to the same family as the primary PE Jaw Crusher but features a smaller feed opening size, making it suitable for processing materials that have already undergone primary reduction.
PEX series adopts a single toggle design with a compound pendulum structure . It is widely used across industries including mining, metallurgy, construction, road and railway building, hydropower, and chemical engineering.



Working Principle

The crusher operates using an electric motor that drives the eccentric shaft through V-belts and pulleys. As the eccentric shaft rotates, it forces the movable jaw plate to move in a reciprocating motion along a predetermined path. Crushing stroke: When the movable jaw rises, the angle between the toggle plate and the movable jaw increases, pushing the jaw plate toward the fixed jaw plate. Materials in the crushing cavity are compressed, ground, and crushed. Discharge stroke: When the movable jaw descends, the angle decreases, and the spring-loaded drawbar pulls the jaw back, allowing crushed materials to be discharged from the bottom opening.
The curved-movement compression method ensures efficient crushing with consistent product sizing.

Applications

• Mining:Crushing ores (iron ore, copper ore, etc.)
• Construction:Producing aggregates for concrete and asphalt
• Road & Railway:Ballast and base material production
• Metallurgy:Smelting feedstock preparation
• Chemical Industry:Processing chemical raw materials
• Water Conservancy:Dam and hydropower project materials

Applicable Materials: River pebbles, granite, basalt, iron ore, limestone, quartz stone, coal gangue, construction waste, and various ores with compressive strength not exceeding 320 MPa.



Main Features & Advantages

• High Crushing Ratio & Uniform Output: The deep crushing cavity design produces evenly sized final products with no dead zones .
• Energy Efficient: Single machine can reduce energy consumption by 15-30%, with systemic savings potentially reaching 50% .
• Adjustable Discharge Opening: Gasket-type adjustment mechanism allows for wide and convenient outlet setting to meet different product size requirements .
• Simple Structure & Easy Maintenance: Reliable operation with low operating costs; wearing parts (jaw plates, side guards) are easily accessible for replacement .
• Low Noise & Dust: Improved working environment with reduced pollution .
• Stable Performance: Strong resistance to friction, abrasion, and compression ensures long service life .

Common Components

• Frame
• Eccentric shaft
• Flywheel & large pulley
• Movable & fixed jaw plates
• Toggle plate & toggle seat
• Side guard plates
• Adjustment screw & return spring

The toggle plate also serves as a safety device, breaking under excessive load to protect the crusher from damage