Industrial jaw crusher manufactured by Mohammadi Machine Industries

Primary size reduction for large rock and mineral feed

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Mohammadi Machine Industries Products

Jaw Crusher

Name: Jaw Crusher
Brand: Mohammadi Machine Industries

The Mohammadi jaw crusher is primary crushing equipment for reducing large rock before secondary crushing and screening. A moving jaw compresses feed against a fixed jaw, while replaceable wear-resistant jaw plates, a robust shaft and heavy-duty bearing arrangement support demanding quarry and mining service.

High primary crushing force

Replaceable manganese jaw plates

Robust shaft and bearing design

Quick access to service parts

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Technical Product Overview

What is a jaw crusher and when is it used?

A jaw crusher is normally the first major size-reduction machine after the feeder. Large pieces enter through the feed opening and are compressed between fixed and moving jaw plates until they are small enough to leave through the lower discharge gap.

The machine must be selected from maximum feed size, rock strength and abrasiveness, required throughput and the acceptable discharge range. Product is then transferred to a secondary unit such as a Hydrocone crusher or Cobit HS crusher according to the process objective.

The feed opening must safely accept the largest regular pieces, not just the average feed. Oversized boulders, uneven loading and uncrushable metal can reduce capacity and damage components.

Quarry Primary CrushingReduces blasted rock before secondary crushing and screening.

Mining OperationsProcesses suitable ore and rock at the beginning of the comminution line.

Sand and Aggregate PlantsPrepares feed for cone, impact and screening stages.

Recycling ApplicationsCan process suitable demolition material after removing reinforcing metal.

Key Advantages

Main advantages of the Mohammadi jaw crusher

Actual performance depends on the selected feed opening, crusher setting, material properties, feed control and maintenance.

Strong Compression

Fixed and moving jaws generate high crushing force for primary size reduction.

Replaceable Jaw Plates

Wear-resistant manganese components are designed for inspection and replacement.

Heavy-Duty Mechanism

Shaft, bearings, toggle system and frame are arranged for industrial duty.

Straightforward Service

Wear components and adjustment points are accessible for planned maintenance.

Operating Process

How does a jaw crusher work?

The drive rotates an eccentric shaft that creates the reciprocating motion of the movable jaw. Feed is gripped and compressed against the fixed jaw during the closing stroke. During the opening stroke, reduced material moves downward and exits through the discharge setting.

Primary FeedingRock enters the top opening at a controlled and evenly distributed rate.

Jaw MovementThe eccentric shaft drives the movable jaw toward and away from the fixed jaw.

Compression CrushingRepeated compression reduces the particles as they move down the chamber.

DischargeMaterial small enough for the set gap exits toward conveying and secondary crushing.

Project-Specific Configuration

Technical specifications and options for jaw crushers

Final model selection follows the largest feed size, required capacity, rock data, discharge range, installation space and downstream process.

Crushing Stage: Primary crushing at the start of the processing line
Feed Opening: Selected to accept the defined maximum feed size safely
Capacity: Depends on model, feed grading, rock properties and discharge setting
Discharge Setting: Adjustable within the permitted range of the selected model
Jaw Plates: Replaceable wear-resistant manganese steel or specified equivalent
Shaft and Bearings: Heavy-duty arrangement selected for primary crushing loads
Drive and Installation: Motor, transmission, base and guarding matched to project duty

Selection and Purchase Guide

What should be specified before ordering a jaw crusher?

Accurate feed and duty information prevents bridging at the inlet, low capacity, excessive wear and overload of downstream machines.

Maximum Feed Size

Measure the largest regular rock and identify occasional oversize.

Rock Properties

Provide strength, abrasiveness, density, moisture and fracture behavior.

Required Capacity

State normal and peak tonnes per hour and operating schedule.

Discharge Requirement

Define the acceptable crusher product and the next process stage.

Maintenance and Operation

How to maintain a jaw crusher

Planned inspection of jaw plates, bearings, adjustment components and structural fasteners helps maintain capacity and prevents secondary damage.

Inspect jaw-plate wear and reverse or replace parts where the design permits

Monitor bearings, lubrication, temperature and unusual noise

Check discharge setting, toggle components and adjustment hardware

Keep feed even and remove oversize or bridging safely

Inspect frame, fasteners, guards, drive belts and flywheels

Frequently Asked Questions

Frequently Asked Questions About Jaw Crusher

Concise answers to important questions about selection, operation, maintenance and quotation.

Yes. It is typically installed at the beginning of the line to reduce large rock before secondary crushing and screening.

Selection is based on maximum feed size, required capacity, rock properties, discharge range, operating schedule and installation conditions.

Jaw plates are commonly manufactured from wear-resistant manganese steel or another alloy selected for the rock and operating duty.

Feed grading, rock strength, moisture, chamber condition, discharge setting, feeder control and downstream restrictions all affect capacity.

Crusher size, feed opening, capacity, wear materials, drive system, frame, guards and additional equipment determine the final price.