Identify linepans, cast side profiles, twin inboard chains, flights and sprockets, then confirm driveframes, gearboxes, couplings, OptiDrive and tensioning systems.
Joy AFC systems are customized for face capacity, length, pans, chains, drives, tensioning, shearer guidance, roof-support advance and transfer interfaces. Linepans, chains, flights, sprockets and drives form a matched system. Confirm the project number and complete installation data before quotation.
Komatsu describes Joy AFC as a system customized for each longwall. There is no published fixed model table covering every project. This table retains only published capacity, pan length, chain diameter and drive configurations.
| System / configuration | Key dimension or capacity | Panline / chain details | Interfaces and structure | Confirmation requirements |
|---|---|---|---|---|
| Joy AFC project configuration | Up to 6,000 t/h | Up to 450 m | Designed for the longwall project | Complete panline, chains, drives and controls |
| 60 in linepan configuration | 1,503 mm | Project pan width and chain center distance | Standard or machined pan joints | Matched to shearer guidance and support-advance interfaces |
| 70 in linepan configuration | 1,756 mm | Project pan width and chain center distance | Standard or machined pan joints | Matched to shearer guidance and support-advance interfaces |
| 80 in linepan configuration | 2,050 mm | Project pan width and chain center distance | Standard or machined pan joints | Matched to shearer guidance and support-advance interfaces |
| Broadband Chain | Chain diameter 38–64 mm | Twin inboard chain system | Matched chains, connectors, flights and sprockets | Confirm for power, fatigue and wear targets |
| OptiDrive VSD | 3,300 or 4,160 V | Medium-voltage variable-speed drive | Integrated motor and inverter configuration | Confirm project electrical specification, power and drive position |
| Joy Driveframe | Project head / tail configuration | Matched to transfer equipment and shearer cutting access | Gearbox, sprocket and coupling interfaces | Confirm longwall layout and left/right position |
| Beam Stage Loader / Belt Tail | Project stage-loader and belt-tail configuration | Continuous overlapping movement | Stage-loader crusher can be integrated | Review the complete face coal-flow system |
The numbers on the diagram correspond one to one with the rows below.
| No. | Component | Location | Applies to |
|---|---|---|---|
| 1 | Linepan | Linepan beneath chain passage | Joy AFC (OEM Robust Linepans pictured configuration) |
| 2 | Flight bar | Transverse flight bar between chain strands | Joy AFC (OEM Robust Linepans pictured configuration) |
| 3 | Round-link chain | Near-side chain strand inside pan | Joy AFC (OEM Robust Linepans pictured configuration) |
| 4 | Haulage rack | Black haulage rack above pan side | Joy AFC (OEM Robust Linepans pictured configuration) |
This section uses official Komatsu / Joy AFC part and structure images. Each material relates to a specific position, load and failure mode. Material names do not establish interchangeability between projects.
Linepan Upper Deck, Bottom Plate & Wear Layer
The upper deck takes cyclic wear from coal, stone and flight chains; the bottom and return areas take chain impact and abrasion. Check pan length, width, plate thickness, chain center distance, upper/lower position, joint type and remaining thickness.
Cast Side Profiles, Shearer Track & Pan Joints
Cast-steel sigma profiles, shearer tracks and pan joints control face alignment, snaking, horizontal articulation and shearer traction accuracy. Confirm panline project, joint type, left/right profile, track curvature, connecting holes and casting batch.
Open Common Tracks and Side Profiles →
Twin Inboard Chain, Connectors & Links
Twin inboard chains carry alternating tensile loads while pulling flights and coal. Links, welds, connectors and diameter wear determine chain life. Within the 38–64 mm range, confirm actual diameter, pitch, grade, mating sprockets and elongation records.
Open the Common Conveyor Chain Page →
Flight Bars, Scrapers & Locking Bolts
Flight bars connect the two chains and sweep coal through the pans. Ends, undersides, chain seats and locking bolts take wear, impact and cyclic bending. Check total width, chain center distance, link interface, mounting direction, bolt grade and consistent mass.
Open the Common Flight Bar Page →
Flight Wear Tips & Raceway Cleaning Zones
Flight ends and pan corners concentrate contact with coal fines and stone. Wear changes cleaning, running clearance and chain-load distribution. Check flight type, left/right end, side-profile curvature, holes and wear templates.
Open Common Flight Wear Tips →Transition Pans & Impact Wear Liners
Head, tail and transfer transition pans, guide plates and impact liners take flow changes, lump-coal impact and chain disturbance. Check installation end, coal-flow direction, driveframe interface, space envelope, thickness and replaceable construction.
Open Common Liner Systems →Core spares follow the drive and coal-flow directions. Sprockets, chains, flights and pans must match; drives and tensioning require the longwall project and left/right position.
Drive Sprockets, Drum Body & Shaft Interface
Sprockets mesh precisely with twin chains. Tooth wear, pocket dimensions, pitch and phase affect load distribution. Check drive/return end, tooth count, chain diameter, pitch, splines or shaft interface, side and mating-chain elongation.
Open the Common Drive Sprocket Page →Head/Tail Driveframes & Bearing Supports
Driveframes support gearboxes, couplings, sprocket shafts, bearings and panline ends while fitting shearer cutting access, stage loaders and roadways. Check longwall layout, side and end, drive count, axes, holes and structural drawings.
Open Heavy-Duty Driveframe and Shaft Review →
AFC Gearboxes, Gear Sets & Output Shafts
AFC gearboxes transmit motor power to sprocket shafts under low-speed, heavy-load, impact and frequent-start conditions. Check gearbox model, ratio, power, orientation, input/output interfaces, gear parameters, bearings, cooling and lubrication.
Open Common Gears, Pinions and Shafts →
TTT Controlled-Fill Coupling & Connections
TTT couplings provide controlled AFC starting and torque transmission. Check drive position, power, motor and gearbox interfaces, mounting dimensions, fluid, controls and fasteners. A similar-looking conventional coupling is not a substitute.
Open Coupling and Heavy-Duty Drive Review →
OptiDrive Motor, VSD & Mechanical Interfaces
OptiDrive integrates the motor and medium-voltage variable-speed drive, with published electrical options of 3,300 or 4,160 V. Confirm project electrical specification, power, position, cooling, controls and motor/gearbox interfaces. Control modules are not ordinary interchangeable spares.
Open Electromechanical Assembly Review →Chain Tensioning, Moving Tail & Transfer Interface
Chain tensioning, tail movement and AFC–stage loader–belt interfaces jointly control pretension, chain return and continuous coal flow. Check tensioning method, cylinder stroke, chain specification, tail structure, transfer height, crusher and belt interfaces.
Open Chains, Sprockets and Tensioning Systems →No. 1,503, 1,756 and 2,050 mm are only the published pan lengths. Also check longwall project number, pan width, chain diameter, pitch, chain center distance, flight structure, sprocket tooth form, drive-end position and drawings.
First measure chain diameter, pitch elongation, connectors and sprocket-pocket wear. Chains, flights and sprockets form a matched system. Replacing only one item may cause uneven loads, chain jumping, impact and reduced life.
Submit equipment nameplate, longwall project number, head or tail position, pan and chain specifications, sprocket tooth count and shaft interface, flight dimensions, drive and tensioning configuration, used-part photographs, key dimensions, material tests and wear records.
Provide longwall project number, complete assembly number, head/tail position, pan dimensions, chain diameter and pitch, chain center distance, flights and sprockets, drives and tensioning, drawings or samples, used-part dimensions, materials and conditions. ANRANST coordinates technical advice, supplier matching, quality control and delivery.
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ANRANST provides customers worldwide with engineering assessment, production at certified foundries to the customer technical requirements, quality control and finished-part delivery for custom wear parts and industrial spares, with scope to support other custom industrial parts.
We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.
Material grades and heat-treatment processes are specified order by order, stated in the technical agreement and tracked through production.
Drawing confirmation, material and process control, production tracking, inspection and acceptance coordination.
We coordinate manufacturing, quality confirmation, packaging and delivery of complete finished parts in a workable, closed-loop supply process.
Provide the existing model, drawings, drawing, materials or operating conditions so we can identify the appropriate technical review and supply route.
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