01
Roll Shells and Segmented Roll Surfaces
Roll Shells & Segments
Directly contacts the feed material. Specify fixed or movable roll, diameter, width and segmentation in your enquiry.
View Parts and Materials →McLanahan Double Roll Crusher Wear Parts and Spares
Black Diamond · Heavy-Duty · Shalemaster — roll surfaces, shafts, belt drives and tramp relief.
OEM Equipment Details
Double Roll Crusher Parts Matched to Roll and Drive Design
Material selection, drawing-based manufacturing and supply coordination for roll wear surfaces, shafts and supports in coal, limestone and wet, sticky material crushing. Double roll crushers and DDC-Sizers have different drives and roll assemblies, requiring separate parts identification.
Standard Models and Key Dimensions
Double Roll Crusher Ranges and Parts Identification
Provide roll diameter × width, tooth profile, roll gap and single- or dual-drive configuration.
| Series | Main Configuration | Selection Details |
|---|---|---|
| Black Diamond | Single or dual V-belt drive; clean coal and friable materials | Roll surface profile, roll diameter × width and pulley interface |
| Heavy-Duty | Heavy-duty double rolls; limestone, gypsum and run-of-mine coal | Tooth profile, bearing housings, roll shafts and tramp relief mechanism |
| Shalemaster | Differential roll speeds; V-belt and reducer drive; wet, sticky materials | Special tooth profile, individual roll speeds and scraper clearance |
Roll diameter, width and tooth profile are project-specific. Check drawings and serial numbers even for parts within the same range.
McLanahan
Component Location Diagram
The numbers on the diagram correspond one to one with the rows below.
| No. | Component | Location | Applies to |
|---|---|---|---|
| 1 | Main frame | Main frame between the two side drives | Double Roll Crusher |
| 2 | Drive pulley and guard | Large pulley guard at the side of the crusher | Double Roll Crusher |
| 3 | Roll tooth | Weld-on roll tooth in the lower OEM close-up | Double Roll Crusher |
Wear Parts
Roll Surface, Tooth and Chamber Wear Parts
Select wear surfaces for abrasion, impact and adhesion. Confirm materials together with the existing part design, heat treatment and fixing method.
02
Crushing Teeth and Toothed Wear Surfaces
Crushing Teeth
Tooth height, pitch, arrangement and root design affect feed gripping and product size. Use tooth drawings, not visual similarity, for matching.
View Parts and Materials →03
Side Liners and Bottom Protection Plates
Side & Bottom Liners
Protect the frame interior and base along the material path. Specify hole spacing, plate thickness and maintenance sections.
View Parts and Materials →04
Roll Scrapers (Optional)
Roll Scrapers
For removing adhering material. Confirm that a scraper is fitted, then check the working clearance between the blade and roll surface.
View Parts and Materials →Spare Parts
Roll Shafts, Supports, Belt Drives and Tramp Relief
Match drive spares by shaft diameter, keyway, bearing designation and drive arrangement.
01
Roll Shafts and Shaft-end Connections
Roll Shafts
Check shaft shoulders, keyways, roll shell connections and bearing fits.
View Parts and Materials →02
Bearings, Housings and Seals
Bearings, Housings & Seals
Check fixed or movable support positions, bearing designations, lubrication and dust seals.
View Parts and Materials →03
Pulleys, V-belts and Gear Reducers
Sheaves, V-Belts & Gear Reducers
Single-drive machines transmit power between rolls by belts; dual-drive machines power each roll independently. Check the Shalemaster reducer and differential-speed arrangement separately.
View Parts and Materials →04
Spring-and-toggle Tramp Relief Mechanism
Spring-and-Toggle Tramp Relief
The movable roll yields when tramp material enters. Check springs, toggles, pins and return position as a complete mechanism.
View Parts and Materials →05
Hydraulic Adjustment Cylinders and Gap-setting Parts
Hydraulic Roll Adjustment
For optional hydraulic adjustment, check cylinder bore, stroke, mounting trunnions and roll gap range.
View Parts and Materials →FAQ
Frequently asked questions
Are double roll crusher and DDC-Sizer parts directly interchangeable?
Brand, roll diameter or tooth profile alone cannot establish interchangeability. Check the drive, roll shafts, bearing housings, connection dimensions and tooth drawings separately.