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WAHLI W 91 is a hobbing machine of high precision, excellent accuracy and proven reliability. Capacities: module 0.05–1.5 mm; distance between centres 40 mm; max workpiece Ø 50 mm; max cutting length 60 mm; teeth 6–390; max cutter Ø 32 mm; cutter travel 16 mm; head swivel ±5°. Specs: cutter stepless up to 4500 t/min; work spindle 500 t/min; 50 Hz 3×400 V; 4 kVA; weight ≈680 kg; dims 720×765×1445 mm. Equipment: PLC control, Wahli loader W25, coolant system. Achieves tight tolerances; typical applications automotive, watchmaking, machine tools, aerospace, medical.
| Module min. | 0.05 mm |
| Module max. | 1.5 mm |
| Distance between centres | 40 mm |
| Max. work piece diameter | 50 mm |
| Longueur maxi. de taillage | 60 mm |
| Pitch min. | 6 |
| Pitch max. | 390 |
| Swivelling range of the working head | +/- 5 ° |
| Max. milling cutter diameter | 32 mm |
| Max. milling cutter displac. | 16 mm |
| Milling cutter speeds: | |
| stepless | |
| up to | 4500 t/min |
| Work piece spindle speed | 500 t/min |
| Voltage 50 Hz 3x | 400 Volt |
| Total power required | 4 kVA |
| Machine's weight about | 680 kg |
| Overall dimensions machine: | |
| Length | 720 mm |
| Width | 765 mm |
| Height | 1445 mm |
| Various accessories: | |
| PLC control | |
| Loader Wahli | W25 |
| Coolant system |
