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Jaw Crusher Resources

Terminology

Open Side Setting 
Maximum distance between jaw die for a given setting (this is the distance when the jaw is at rest) 

Close Side Setting 
Minimum distance between jaw die derived from the OSS and the stroke. 

Nip Angle 

Inclusive angle between jaw die indicative of the crusher’s ability to crush and draw rock. 

Fixed Jaw 
Replaceable die attached to the fixed frame. 

Swing Jaw 
Replaceable die plate attached to the pitman. 

Cheek Plates 

Bolt on wear plates designed to protect crusher frame. 

Wedges 
Some designs of jaw crushers require wedges to ensure that the jaw plates are held firmly in position. These are also a wear part that can be replaced when worn down.

JW55
Jaw Fitted with Fixed Heavy Duty Die and Super Tooth Swing Die

Jaw Die Selection

There are a few key points that you need to consider when selecting the correct liners for an application:

  • Feed Material Type
  • Feed Material Hardness / Abrasiveness
  • Feed Size
  • Required output
  • Potential of uncrushable material in the chamber
  • Required throughput

Application

Jaw Die ProfileRecyclingSoft-Medium RockHard RockRiver GravelAsphalt
Super Tooth XXXX
Quarry ToothXXXXX
Standard ToothXXXX 
Multi ToothX    
Heavy Duty XX  

 

Jaw Die Profiles

Super tooth jaw die

Super Tooth

Also called Medium Tooth
Medium to hard rock applications
Grips material to allow better crushing

Quarry tooth jaw die

Quarry Tooth

Hard rock and high abrasive applications
Deeper tooth profile allows for extra wear

Multi tooth jaw die

Multi Tooth

Also called Recycle Tooth
Recycling applications
Good grip on smooth flat surfaces

Standard tooth jaw die

Standard Tooth

Recycling and soft rock applications
Not available for all models

Heavy duty fixed jaw die

Heavy Duty

Designed for fixed side only
Reduces the number of fixed die changes
Can be used with Quarry or Super Tooth Swing die

To learn more or to purchase spare parts for jaw crushers, please contact our Parts team or your local distributor.