Broaching units cut internal keyways, hexagons and squares on the lathe, removing the second operation on a broaching press or a slotting machine. Mongtec Precision, a Taiwanese tooling brand headquartered in Taichung, Taiwan, supplies them to mount on Haas turrets, published for BMT45, BMT65, BMT75, VDI40.
Developed specifically for the high-rigidity machining requirements of Haas multitasking centers. These units are dedicated to integrating keyway and tooth profile machining into a single process, enabling the machine to handle internal/external splines and keyway cutting directly. Featuring a reinforced reciprocating mechanism, these units withstand high-frequency impacts, helping customers achieve high-efficiency process integration on their Haas machines.
16 Haas models. Where the turret interface is published it is shown; where it is blank the interface depends on the turret actually fitted and is confirmed at enquiry.
| Machine model | Turret interface (where published) | Turret |
|---|---|---|
| DS-30 (12 station hybrid turret) | — | — |
| SL-20/30, TL-15/25 (BOT-turret) | — | — |
| SL-20/30, TL-15/25 (12 st. hybrid turret) | — | 12-station |
| SL-20/30 (VDI turret) | — | — |
| SL-40 (12 station hybrid turret) | — | — |
| SL-40 (VDI turret) | — | — |
| ST-10/15Y (BMT45) | BMT45 | — |
| ST-10/15 (BOT-turret) | — | — |
| ST-10/15 (12 station hybrid turret) | — | — |
| ST-10/15/20/25/30/35, DS-30 (VDI40) | VDI40 | — |
| ST-20/25/28/30/35 (BOT-turret) | — | — |
| ST-20/25/30/35 (12 st. hybrid turret) | — | 12-station |
| ST-20/25/28/30/35, DS-30 (BMT65) | BMT65 | — |
| ST-20/25/30/35, DS-30 (24 st. hybr. turret) | — | 24-station |
| ST-40/45, ST-40/45 L (12 st. hybrid turret) | — | 12-station |
| ST-40/45Y (BMT75) | BMT75 | — |
All machine builders for broaching units →
The machine model alone does not decide the holder. The same model can leave the factory with different turrets — station count, model suffix and key arrangement all change the mounting. Tell us the machine, the turret and the operation and we confirm the mounting before quoting.
Already using another brand? Send the drawing or the article number of the holder you run today and Mongtec will convert it to an equivalent Mongtec holder — same mounting, same reach, same output.
Mongtec publishes keyway broaching holders for 13 Haas machine models, on turret interfaces BMT45, BMT65, BMT75, VDI40. On these machines the holder is used for cutting internal keyways, hexagons and splines on the lathe, without moving the part to a second machine. Article numbers are matched to the machine at RFQ — we confirm the turret interface from the builder’s drawing rather than assume it from the model name.
Haas machine not on this list? Send the model and we confirm the interface →