01
Replaceable Crushing Hammers and Tooth Segments
Crushing Hammers & Segments
Check scroll or flat tooth arrangements against the installation drawing, matching tooth height, roots, bolts and roll-body interfaces.
View Parts and Materials →McLanahan Mineral Sizer Tooth Segments and Parts
For hard rock and clay-bearing ores — replaceable crushing hammers, tooth segments and optional breaker bars.
OEM Equipment Details
Mineral Sizer Tooth Segments, Breaker Bars and Heavy-duty Shafts
For primary and secondary crushing of hard rock, clay-bearing ores and selected battery minerals. This page covers the Mineral Sizer; explore the DDC-Sizer range for other primary, tertiary and fine-sizing configurations.
Standard Models and Key Dimensions
Mineral Sizer Range and Parts Interfaces
Roll width, tooth profile, drive orientation and breaker bar are project-specific. Provide the installation drawing when ordering.
| Configuration | Main Range | Parts Identification |
|---|---|---|
| Primary / Secondary Mineral Sizer | Published feed size up to 1,200 mm, reduced to approximately 300 mm | Roll diameter, width, gap and tooth drawings |
| Dual-drive Configuration | Parallel-shaft or right-angle arrangement | Left and right drives, gear ratio, torque and shaft-end interfaces |
| Breaker Bar (Optional) | Hydraulic height adjustment and removable design | Wear blocks, mounting interfaces, adjustment shims and cylinders |
These are published product capabilities and configurations, not guaranteed values for an individual installation. Match parts by project number, serial number and dimensions.
McLanahan
Component Location Diagram
The numbers on the diagram correspond one to one with the rows below.
| No. | Component | Location | Applies to |
|---|---|---|---|
| 1 | Crushing hammer | Crushing hammers on the rolls inside the open chamber | Mineral Sizer |
| 2 | Crushing roll assembly | The two inward-rotating rolls inside the chamber | Mineral Sizer |
| 3 | Gear reducer | Blue gear reducer behind the crushing frame | Mineral Sizer |
| 4 | Drive motor | Orange drive motor outboard of the reducer | Mineral Sizer |
| 5 | Main frame | Red main frame around the crushing chamber | Mineral Sizer |
Wear Parts
Crushing Hammers, Tooth Segments and Liners
Material selection considers tooth-body toughness, surface wear and repair welding. Different positions may require different grades.
02
Breaker Bar Wear Blocks (Optional)
Breaker Bar Wear Segments
Located below and between the rolls to restrict slabby material. Match the breaker bar assembly drawing, clearances and hydraulic fastening interfaces.
Send Breaker Bar Drawings →03
Frame Side Liners and End Plates
Frame Liners & End Plates
Check liner sections, thickness, hole spacing and impact faces while preserving maintenance access.
View Parts and Materials →Spare Parts
Roll Shafts, Drives and Hydraulic Tramming Parts
Match mechanical drive parts and hydraulic equipment to the installed configuration.
01
Roll Shafts and Bearing Supports
Roll Shafts & Bearing Supports
Check left and right shafts, segment interfaces, bearing fits and removal direction.
View Parts and Materials →02
Dual-drive Gear Reducers and Couplings
Dual Drives & Couplings
Check parallel or right-angle arrangement, gear ratio, input and output interfaces, and rated torque.
View Parts and Materials →03
Tooth Segment Fasteners and Retainers
Segment Fasteners
Match thread, strength class, grip length and locking design; do not mix similar but different specifications.
View Parts and Materials →04
Breaker Bar Cylinders, Tramming and Locating Parts
Breaker Bar Hydraulics & Tramming Parts
The optional breaker bar uses cylinders and shims for adjustment. Check tramming rails, drives and hydraulic locating pins separately.
Send Hydraulic and Tramming System Details →FAQ
Frequently asked questions
Must the roll shaft be removed to replace crushing hammers or tooth segments?
The OEM Mineral Sizer design allows hammer or segment replacement without removing the roll shaft. Follow the maintenance manual for the installation; removal procedures differ between Sizer ranges.