Identify models, wear parts, drive spares, materials and enquiry requirements through the bucket and drag system, hoist machinery, swing support, walking system and major load-bearing structures.
Cat's current large dragline catalogue includes 8000, 8200 and 8750. Bucket capacity, boom length and machine weight differ substantially. Buckets, ropes, gearboxes, swing and walking parts cannot be treated as interchangeable merely because they are Cat dragline parts. Manufacturing requires the complete model, serial number, assembly number, drawing or physical survey.
Models, bucket capacities, boom lengths and approximate operating weights below come from Caterpillar's current individual model pages and support initial machine and spare-part identification.
| Standard Models | Bucket capacity | Boom length | Published approximate operating weight |
|---|---|---|---|
| 8000 | 24–34 m³ | 75–101 m | 1,770,000–1,988,000 kg |
| 8200 | 46–61 m³ | 100 m | 3,800,000–4,100,000 kg |
| 8750 | 76–116 m³ | 109.7–132.5 m | 5,800,000–7,500,000 kg |
The numbers on the diagram correspond one to one with the rows below.
| No. | Component | Location | Applies to |
|---|---|---|---|
| 1 | Dragline bucket | Below the forward end of the boom | 8750 (OEM complete-machine image on website) |
| 2 | Lattice boom | Long lattice boom extending to the upper left | 8750 (OEM complete-machine image on website) |
| 3 | Hoist rope | Rope descending from the boom point to the bucket | 8750 (OEM complete-machine image on website) |
| 4 | Drag rope | Near-horizontal rope between bucket and machine | 8750 (OEM complete-machine image on website) |
| 5 | Machinery house | Yellow machinery house at the lower right | 8750 (OEM complete-machine image on website) |
| 6 | Mast structure | Upright mast structure above the machinery house | 8750 (OEM complete-machine image on website) |
Official Cat machine images identify equipment and installation areas.Materials are engineering options requiring confirmation against drawings, loads, conditions, failure modes and original-part testing.
Bucket Teeth & Adapters
Fit the dragline bucket cutting edge and withstand impact, compression and abrasive wear during digging. The image illustrates a component category, not Cat OEM interchangeability. Check 8000, 8200 or 8750, bucket capacity, tooth system, locking structure and position.
View the bucket tooth product page →
Bucket Lip, Shrouds & Side Cutters
Protect the lip, leading edge and high-wear side zones and share digging loads with the tooth system. Check lip profile, block positions, holes, locking interfaces and adjacent adapters.
View lip and wear-block components →
Bucket Liners & Wear Plates
Cover the floor, sides, back and local erosion zones, with replacement divided by wear map. Provide bucket assembly drawings, plate positions, curvature, thickness, holes and connections.
View bucket liners →Drag/Hoist Chains, Shackles & Rigging Wear Parts
Bucket drag, hoist and dump connections include chains, shackles, equaliser beams, pins and rope terminations. Check the complete system against bucket, reeving arrangement, chain diameter, pitch, connection dimensions and safety class.
View pins and connectors →Sheave Grooves, Fairleads & Rope Wear Interfaces
Hoist and drag ropes generate high contact pressure and cyclic wear at sheaves and guides. Check rope diameter, groove profile and root radius, sheave diameter, bearing arrangement and mounting datums.
View wire ropes and heavy-duty assemblies →
Tub, Walking Shoes & Structural Wear Plates
The tub, walking shoes and contact zones carry enormous machine loads, sliding wear and ground impact. Cat 8750 information also describes wear-resistant plate in the tub frame. Distinguish structural components, replaceable wear plates and walking-mechanism parts.
View ground-contact walking components →Group spares by mechanism and assembly relationship. Gears, shafts, drums, ropes, sheaves, housings, eccentric bushings and large structures require complete model, assembly number, installation datums and inspection requirements.
Hoist/Drag Motors, Gearcases & Drums
Hoist and drag systems comprise motors, parallel-shaft gearboxes, bearing housings, brakes and drums. Cat 8750 information describes an interchangeable design basis for gears, bearings and drums in these two systems. Still verify replacements by series, assembly number and dimensions.
View hoist and drag drive assemblies →Swing Planetaries, Pinions & Rack
Multiple swing drives use planetary gearboxes and output pinions to rotate the upper structure. Check motors, gearboxes, output shafts, pinions, ring gear or rack parameters, mounting holes and platform datums.
View gears, pinions and drive parts →Third Rail, Crowned Rollers & Bearing Cartridges
Cat 8750 swing support uses a third rail and crowned rollers with serviceable bearing assemblies. Check rail segments, roller diameters, housings, clearances, preload and mounting datums.
View bearings, bushings and supports →Propel Cam, Bull Gear, Gearbox & Eccentric Bushing
The walking system drives the shoes through eccentric cams, large walking gears, parallel-shaft reducers and eccentric bushings. Check left/right positions, gear parameters, shafts, eccentricity and assembly datums together.
View walking and heavy-duty drive assemblies →Hoist/Drag Ropes, Sheaves & End Connections
Hoist, drag and suspension ropes, sheaves and terminations require frequent inspection. Cat lists six- and eight-strand rope options with or without plastic impregnation. Confirm diameter, length, lay, construction and reeving drawings for orders.
View rope systems and heavy-duty assemblies →Center Pintle, Tub, Boom & Tri-Structures
The centre pivot, tub frame, boom and triangular structures are core load-bearing and locating components. Repair and manufacture require complete structural drawings, welding procedures, material certificates, geometric datums and non-destructive testing requirements.
View large structures and heavy-duty assemblies →Do not assume interchangeability. Bucket capacities, boom lengths and operating weights differ. Verify complete model, serial number, assembly number, bucket and mechanism assembly drawings item by item.
Provide at least complete model, serial number, bucket capacity, installation position, OEM or third-party drawing, used-part photos, key dimensions, material or hardness test results, ore conditions and failure photos.
Start with machine and assembly nameplates, position, used-part photos, key dimensions and material tests. Then assess whether catalogues, drawing searches or a physical survey can confirm the part. Do not publish invented numbers without reliable evidence.
Provide complete model and serial number, bucket specification, boom length, component mechanism, drawings or samples, photos, key dimensions, current material and ore conditions. ANRANST supports drawing and engineering review, production at certified foundries, in-factory inspection and finished-part 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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