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Forged Hollow Shaft
Forged Hollow Shaft
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This shaft type combines the strength benefits of forged material with the structural advantages of a hollow section. It is suitable for rotating equipment, drive systems, and custom machinery that require a bore through the shaft body or a reduced mass compared with a solid alternative. The forging route allows the product to be supplied with adequate wall thickness and machining allowance for accurate boring and turning. Compared with a solid shaft, this product offers a more efficient section layout where mass reduction, internal passage, or large outside diameter must be balanced with forged strength. Typical customer requirements include wall-thickness control, concentricity potential, boring allowance, and stable response during heat treatment and straightening. The forging can be supplied for further boring and turning, or in a rough-machined state when the project requires tighter control before final machining.
| Parameter | Description |
|---|---|
| Key Features | ID/OD concentricity, wall thickness uniformity, weight reduction |
| Typical Materials | 42CrMo4, 34CrNiMo6, A105, per drawing |
| Size Range | OD 200~1000mm / ID 100~600mm / Length ≤6000mm |
| Typical Applications | Hollow drive shafts, lightweight main shafts, shafts requiring internal passage |
| Supply Condition | Quenched & tempered / Rough machined (ID/OD/faces) |
| Inspection & Docs | UT on ID/OD surfaces, concentricity/wall thickness report, mechanical properties, EN 10204 3.1 |
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