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| Specification | Details |
|---|---|
| Manufacturer / Model | Red Ring (National Broach), GCU‑12 |
| Machine Type | Gear shaving (finishing) machine |
| Max Cutter Diameter | 12 in (≈305 mm) cutter head (Pisellient) |
| Max Gear OD | ~12¼ in (≈310 mm) |
| Pitch Diameter Range | 1–12 in (≈25–305 mm) |
| Stroke (Facewidth) | 5 in (~127 mm), crown shave 6 in (~152 mm) |
| Reciprocation Speed | ~70–280 RPM (cutter speed) |
| Distance Between Centers | 22¾ in (~578 mm) between headstock and tailstock |
| Max Crown Axis Shaving | ±25° crossed axes capability |
| Tablespeed (Facewidth) | 5 in (straight), 6 in (crown) |
| Machine Weight | Approx. 11,700 lb (~5,300 kg) |
| Enclosure & Cooling | Full enclosure, crowning mechanism, chip conveyor optional |
| Condition / Control | Available in manual, semi-automatic, or CNC-refit versions |
