Multi-spindle heads carry six or eight driven spindles in a single station, in 0° and 90° configurations. On a bolt circle of identical holes this collapses a whole sequence into one approach: instead of index, drill, retract, index, drill, the pattern is produced together.
The economics only work above a certain volume — the head is specific to the hole pattern, so it earns its cost on repeat production, not on a one-off. Send the hole pattern, quantity and annual volume and we will tell you honestly whether it pays.
| Turret size | Gear ratio | Max speed | Max output torque |
|---|---|---|---|
| BMT55 | i=1:1 | 6,000 rpm | 25 N·m |
Source: Mongtec BMT Driven Tools PRO catalogue, Ver 2026.07. Figures are the published range for the family. Full PDF catalogues are available from the Mongtec website.
Mongtec builds this family to order as well as to catalogue. Special angles, extended reach, high-pressure internal coolant, non-standard collet or arbor mountings and machine-specific bolt patterns are all within scope. If what you need is not a catalogue item, describe the operation and the machine — that is usually enough for engineering to say whether it can be built and roughly what it involves.
Published for BMT55. The article number for your machine is confirmed against the actual turret drawing at RFQ.
Yes. Special angles, extended reach, high-pressure internal coolant and non-standard collet or arbor mountings are built to order. Describe the operation and the machine and engineering will say what is possible.
BMT is an industry de-facto standard, not published by ISO or DIN, so the same nominal size can differ between machine builders. Send the machine model and a photograph of the turret face; the check against the actual drawing is free.
No. Mongtec supplies the full dimensioned drawing by email once an enquiry is open, matched to your machine and turret configuration.
All driven tool holder types and turret interfaces · 228 published article numbers · Static turret tooling · Selection guide