Mongtec Precision, a Taiwanese tooling brand headquartered in Taichung, Taiwan, supplies BMT and VDI (DIN 69880) driven tool
holders, static holders and quick-change tooling for EMAG CNC lathes and turning centers. Select your machine below,
or contact engineering if your model is not listed
— interface dimensions are confirmed per machine at RFQ.
Figures below are Mongtec's own published line specifications (mongtec-tools.com, accessed 2026-07-20). They describe the capability range of the product line; the rating of a specific unit for a specific machine is confirmed by Mongtec engineering at RFQ.
Turret interfaces supplied
BMT (face-and-taper), VDI polygonal shank to DIN 69880, and PSC polygon shank coupling to ISO 26623
Driven tool 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 published for the Mazak-compatible 0° driven tool line; other families confirmed at RFQ
No blanket published figure — quoted per order after interface, quantity and customisation are reviewed
On turret standards: VDI is codified in DIN 69880 and the PSC polygon shank coupling in ISO 26623. BMT (Base Mounted Turret) is a widely adopted de facto industry interface but is not published by ISO or DIN — two turrets both labelled “BMT65” can differ in detail between machine builders. Mongtec therefore verifies the actual turret dimensions of the stated machine before confirming fitment.
FAQ
Which turret interface do EMAG lathes use?
It depends on the machine, not on the brand. Across the 12 EMAG models documented on this site the published interfaces are: VDI40 on 5 models (such as VSC 160, VSC 200, VSC 250); BMT55 on 4 models (such as VL 2 / VLC 100, VL 3 Duo, VL 4); BMT65 on 2 models (only VL 6, VT 4-4). A further 1 model is not yet published with an interface and is confirmed per configuration at RFQ. Some models appear under more than one interface because the same designation ships with different turret options. Send the model designation and turret station count and Mongtec engineering confirms it against the actual turret drawing.
Will a Mongtec driven tool holder fit my EMAG turret?
Mongtec supplies on the same open machine-side standards EMAG turrets use — BMT face-and-taper, VDI polygonal shank to DIN 69880, and PSC polygon coupling to ISO 26623. Because BMT is an industry de-facto standard rather than an ISO or DIN standard, fitment is confirmed per machine: send the model designation and turret station count (a photo of the turret face or the machine spec sheet helps) and Mongtec engineering confirms it against the actual turret drawing before quoting.
My EMAG model is not in the list above — can you still supply?
In most cases yes. The list covers models already documented by Mongtec; it is not the limit of what Mongtec can supply. Custom and special-configuration units are a standard part of the work, and Mongtec supplies turret interfaces beyond the article numbers published on this site. Send the model designation and turret station count and engineering will confirm.
Do you supply static holders and boring bar holders as well as driven tools?
Yes. Static turning, boring bar, facing, cut-off and blank holders are supplied on the same turret interfaces as the driven units, alongside quick-change tooling and angle heads.
What is the lead time?
Mongtec does not publish a blanket lead time. It is confirmed according to the items and quantities the customer requests, once interface, quantity and any customisation are reviewed. Request a quote for a project-specific answer.
Does Mongtec repair driven tools from other brands used on EMAG machines?
Mongtec's Taiwan service centre works on driven tool holders and angle heads. Whether a specific third-party brand and model is covered is confirmed case by case on request.
Of the 6 models covered here, 6 have a turret interface we have been able to confirm from published machine-builder specifications. The rest are confirmed at RFQ — we would rather leave a field blank than guess it.
Most enquiries begin with one axial holder for face drilling and tapping and one radial holder for cross work. These are the published Mongtec article numbers for the interfaces above — a starting point for the conversation, not a confirmed fit for your specific machine:
Interface
Article no.
Orientation
Collet
Max speed
Torque
What we need to quote a EMAG machine
Three things get you a firm quote: the machine model and year, a photograph of the turret face, and the tools you intend to run (drill and tap sizes, or end mill diameter). Anything you do not know we work out from the machine model — an incomplete enquiry is still worth sending, and the interface check costs you nothing.
Why we will not sell against a label. BMT is an industry de-facto standard, not an ISO or DIN published one, so bolt circle, key position and drive coupling can differ between machine builders at the same nominal size. VDI shanks follow DIN 69880, but pocket depth, clamping system and drive coupling still vary. We check the article number against the actual turret drawing before quoting, which is why a holder from us arrives and mounts.