The EMCO Hyperturn 645 / 665 uses a VDI40 turret interface. Mongtec Precision, a Taiwanese tooling brand headquartered in Taichung, Taiwan, supplies driven tool holders and static tooling on the open machine-side BMT and VDI (DIN 69880) standards used by this machine class. The exact Mongtec model for your machine configuration is confirmed by Mongtec engineering at RFQ, and every driven unit ships with an individual inspection report.
| Machine brand | EMCO |
|---|---|
| Model | Hyperturn 645 / 665 |
| Turret interface | VDI40 |
| Driven tool line speed | 6,000–12,000 rpm standard (up to 32,000 rpm with speed increaser) |
| Max torque | Up to 160 Nm (line capability; unit rating confirmed at RFQ) |
| Coolant | Internal / external, up to 100 bar |
| Runout | ≤0.003 mm (0° axial driven line) |
| Quality assurance | Each driven unit ships with an individual inspection report |
Same model, different turret: station count, model suffix and build year change the turret interface. Mongtec confirms the interface from the machine model and a turret photo before quoting.
TOOL HOLDER SELECTION GUIDE Ver 2026.08 (PDF, 2.6 MB)
Mongtec also supplies BMT40, BMT60, BMT68 and BMT80 holders and builder-specific interfaces (Mazak, Nakamura-Tome, Haas BOT, Okuma BOT, Muratec BOT) — the 228 article numbers published here are a subset of the range. Mongtec tooling is exported to five continents and supplied to machine-tool builders. Lead time is confirmed per item and quantity at quotation.
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| Article no. | Type | Collet / coupling | Ratio | Max speed | Torque |
|---|---|---|---|---|---|
| M2826 | Axial Tool Head, Round, Ext Nut | ER32 | 1:1 | 5000 rpm | 70 Nm |
| M4526 | Axial Tool Head, Round, Int Nut | ER32 | 1:1 | 5000 rpm | 70 Nm |
| M2326 | Axial Tool Head, Round, Int Nut, Through Coolant | ER32 | 1:1 | 5000 rpm | 70 Nm |
| M4226 | Axial Tool Head, Round,Ext Nut | ER32 | 1:1 | 5000 rpm | 70 Nm |
| M8066 | Axial Tool Head, Round,Ext Nut | ER40 | 1:1 | 5000 rpm | 70 Nm |
| M5526 | Axial Tool Head, Round,Int Nut | ER32 | 1:1 | 5000 rpm | 40 Nm |
| M2426 | Axial Tool Head, Square | ER32 | 1:1 | 5000 rpm | 70 Nm |
| M0726 | Axial Tool Head, Square,Side Lock Adapter | — | 1:1 | 5000 rpm | 70 Nm |
| M6626 | Axial Tool Head,Offset,Left Version | ER32 | 2:1 | 6000 rpm | 40 Nm |
| M4366 | Axial Tool Head,Offset,Right Version | ER32 | 1:1 | 6000 rpm | 63 Nm |
Listed from the Mongtec Tool Holders — VDI & BMT, Ver 2026.3 catalogue for the VDI40 turret interface. This is the published range for that interface size, not a confirmed fit for this specific machine configuration — Mongtec engineering verifies interface dimensions, clearance and drive coupling per machine at RFQ. Ask engineering to confirm →
Mongtec publishes 75 VDI40 driven (live) tool holder article numbers, each with collet, gear ratio, maximum speed and torque. Browse all VDI40 article numbers →
Representative photographs of Mongtec driven and static turret tooling in the VDI40 class. These are production units from the Mongtec range, not renderings — but they are shown as examples of the VDI40 product family, not as the confirmed article number for this machine. Mongtec engineering verifies the interface, clearance and correct article code for your specific machine at RFQ.
Mongtec supplies BMT and VDI (DIN 69880) driven tool holders and static tooling compatible with the EMCO turret platform. Interface: VDI40. The exact configuration is confirmed by Mongtec engineering at RFQ.
Yes. BMT and VDI are open machine-side standards, so switching supplier does not require any turret modification. Mongtec also publishes cross-reference pages for WTO, Heimatec, EWS, Eppinger, BIG and other brands.
Lead time is quoted per order and ships from Taichung, Taiwan. Every Mongtec driven tool holder is inspected before shipment (runout, torque, balancing) and ships with an individual inspection report.
All VDI40 driven tool holders · All 228 article numbers with full specification · How to choose a driven tool holder · PSC / ISO 26623 tooling
Machine builders regularly ship the same model with different turrets — station count, model suffix and the number of keys all change the mounting. The Hardinge Conquest H51 is BMT55 in the 12-station build and BMT45 in the 16-station build; the Okuma GENOS L300 M is VDI40, while the L300 MW/MYW uses a 65×73 mm bolt pattern. This is the single most common reason a driven tool holder arrives and will not bolt on. BMT bolt pattern reference — 38 patterns by machine builder →
Send your model and a photo of the turret face — we confirm the fit before quoting →
Whether a holder mounts is decided by the turret bolt pattern and the drive coupling, not by the machine name alone. The types below are published by Mongtec for this interface; the exact article number is confirmed against the actual turret drawing at RFQ.
VDI40 article numbers · BMT bolt pattern reference (38 patterns) · All driven tool types and turret interfaces