Review project configuration, throughput, chain sizes, pan widths, wear liners, head/tail shafts and drive spares together.
Current McLanahan Apron Feeders are engineered for duty and project requirements; no fixed model table covers every installation. This page presents published capacities, pan configurations, undercarriage maintenance identifiers and part-identification criteria. Before manufacture, verify project number, nameplate, general arrangement, drawing reference and used parts.
Current products combine capacity, chain size, pan width and project length. FL / FD labels identify undercarriage maintenance groups and must not be treated as complete machine models.
| Configuration / Maintenance Identifier | Published Design Scope | Published Capacity or Dimensions | Key Spare-Part Checks |
|---|---|---|---|
| Engineered Apron Feeder | 6 chain sizes and 16 standard pan widths; length is project-specific | 10–6,000 tph | First verify project number, pan width, centres, chain size, inclination, speed and drive. |
| Cast Manganese-Steel Pan Configuration | Heavy-duty one-piece cast flight / pan for high-impact feed areas | Width and length selected for the project | Check individual weight, overlaps, bolt holes, chain interfaces, left/right orientation and wear allowance. |
| Formed Steel Pan Configuration | Fabricated formed-steel flight / pan; welded or formed design | Width and length selected for the project | Check thickness, forming radii, reinforcement, welds, hole patterns and overlap clearances. |
| FL4 / FD4 / FD7 undercarriage identifiers | Support and return-roller maintenance group, not a fixed machine model | Return-roller diameter 130 mm indicates approximately 50% wear; 120 mm approximately 100% wear | Check original roller diameter, shaft ends, bearings, seals, mounts and exact position. |
| FD9 / FD10 undercarriage identifiers | Large support and return-roller maintenance group, not a fixed machine model | Return-roller diameter 219 mm indicates approximately 50% wear; 209 mm approximately 100% wear | Verify project drawings, shaft-end dimensions, bearings and seals; series labels alone do not establish interchangeability. |
Within the same capacity range, pans, chains, sprockets, rollers, centres, inclination, speed, drive and hopper interfaces can differ completely. The name “Apron Feeder” alone is insufficient for manufacture.
Distinguish drop impact, sliding erosion, trapped material and return spillage by installation position. Material pages support preliminary selection; project drawings and acceptance requirements determine final materials, processes and dimensions.
Flight / Pan
Take direct drop impact and are pulled by chains on both sides. The image shows a generic category, not a McLanahan OEM part. Verify cast manganese or formed-steel design, width, overlaps, holes, chain pitch and orientation.
Material review: McLanahan offers cast manganese-steel and formed-steel flights / pans. Project drawings determine the steel grade, heat treatment, thickness, welding and acceptance requirements.
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Hopper, Side & Skirt Liner
Protect lump-impact areas, hopper sides and sealing skirts. The image identifies a generic category, not McLanahan OEM parts. Verify segmentation, thickness, holes, overlaps and left/right positions against assembly drawings.
Material review: Prioritise toughness and support in high-impact drop zones, and wear resistance in long sliding zones. Hardness alone is insufficient for material selection.
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Impact Plate & Wear Rail
Located at high-drop feed points or beneath pans in local impact zones, protecting the frame and controlling pan-chain deflection. The image shows a generic category, not McLanahan OEM parts; position, thickness and fastening vary by project.
Material review: Select tough steel plate, quenched and tempered wear plate or composites by lump size, drop height, contact pressure and support stiffness. Confirm the grade after drawing review.
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Head / Discharge Chute Liner
At the head wheel and discharge transfer, these face accelerating-flow erosion, turning impact and uneven wear. The image is generic, not McLanahan OEM. Check position, flow direction, curvature, holes and adjacent clearances.
Material review: Select materials by the impact-to-sliding-wear balance. Design high-impact and high-hardness areas separately rather than applying one liner solution everywhere.
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Tail / Inlet Liner
Near tail feeding and chain return areas, these protect the frame and limit build-up effects on chains, tail wheels and tensioning. The image identifies a generic category, not McLanahan OEM parts.
Material review: Determine segmentation and materials by drop impact, trapping risk, pan-chain clearances and maintainability. Project drawings must supply dimensions and bolt layouts.
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Dribble / Drip Pan Liner
Used only where a return tray or dribble pan is installed, collecting spillage below the return chain and protecting the base. The image is generic, not McLanahan OEM; no part is specified where this structure is absent.
Material review: Prioritise thin-plate wear resistance, resistance to deformation, easy cleaning and replacement. Confirm material and thickness against actual build-up and erosion.
View the Component Page →Chain pitch, pan width, centres, head/tail shaft interfaces, rollers and drive type form one system. Every replacement must match the installed machine and project number.
Heavy-Duty Chain, Pin & Bushing
Side chains carry traction and maintain pan spacing. The image is generic, not McLanahan OEM. Check chain size, pitch, plates, pins, bushings, connecting links, left/right pairing and total links as a set.
Material review: Check chain plates, pins and bushings individually for strength, fatigue, core toughness, case depth, wear pairing and dimensional accuracy.
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Chain Pin & Bushing Pair
Pins and bushings determine articulation, elongation and chain life. The image is generic, not McLanahan OEM. Check outside/inside diameters, working length, lubrication, interference, hardened layer and chain-plate interfaces.
Material review: Material, carburising or induction hardening and core toughness must be matched. Surface hardness alone is insufficient to replace the original design.
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Segmental Sprocket, Hub & Head Shaft
Published McLanahan designs can use split cast manganese-steel sprockets bolted to keyed hubs on heavy-duty head shafts. The image is generic, not OEM. Check teeth, chain pitch, pitch circle, segments, holes, keyways and shaft ends.
Material review: Verify sprocket teeth, hubs and head shafts individually for impact wear, torque, fatigue, fits and non-destructive testing.
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Carry Roller, Return Roller & Tail Idler
Support the pan chain and guide its path, forming key undercarriage maintenance items. The image is generic, not McLanahan OEM. Distinguish carrying rollers, return rollers and tail wheels; check diameters, shaft ends, bearings, seals and mounts.
Material review: Select roller and shaft alloy steels and surface treatment by contact stress, impact, fatigue and wear. Check bearings and seals against dust, temperature and lubrication.
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Tail Tensioning Assembly
Maintain initial tension, side-to-side synchronisation and chain alignment. The image is generic, not McLanahan OEM. Check mechanical/hydraulic design, travel, screw or cylinder dimensions, mounting holes, handed parts and tail-shaft interfaces.
Material review: Check screws, rods, pins, slides and hydraulic parts individually for loads, thread accuracy, fatigue, corrosion protection, sealing and travel.
View the Component Page →Electromechanical or Hydraulic Drive
Current published McLanahan configurations support geared motor or hydraulic drives. Verify power, speed, torque, ratio, rotation, orientation, couplings, brakes and head-shaft interfaces for the project.
Material review: Check gears, shafts, couplings, housings, hydraulic motors and seals individually against nameplates, drawings, loads, lubrication and environmental conditions.
View the Component Page →No. Equal capacities can use different pan widths, centres, chains, pans, inclinations, speeds, rollers and drives. At minimum, provide the project number, nameplate, general arrangement, drawing reference or used-part dimensions.
This page uses them only as undercarriage and return-roller maintenance identifiers from McLanahan support literature, not as unsupported complete machine models.
No. Pans, impact zones, sliding-flow areas and return-spillage areas have different loads and failure modes. Verify each against original drawings, material, lump size, drop height, speed and support conditions.
Provide the complete nameplate, serial or project number, capacity, material and lump size, pan width, centres, inclination, speed, chain size, pan and roller photographs, drive nameplate, drawing reference and used-part dimensions. These support identification, material assessment, manufacturing coordination, quality control and finished-part delivery.
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Material grades and heat-treatment processes are specified order by order, confirmed in the technical agreement and tracked through production.
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