BT40 is the most common machining-centre spindle and carries the widest published Mongtec range: ER collet outputs from ER11 to ER32, DC chuck outputs, FMB face-mill arbors, adjustable and multi-output heads, and fixed angles other than 90 degrees.
| Model | Driving shank | Max. RPM | Chucking range | Torque | Through dia. |
|---|---|---|---|---|---|
| BT40QDC5MQ50 | BT40 | 6000 RPM | D1-D5 | 5.6 Nm | D40 |
| BT40QDC6/Square | BT40 | 6000 RPM | D1-D6 | 10.8 Nm | D35 |
| BT40QDC6Q66 | BT40 | 6000 RPM | D1-D6 | 10.8 Nm | D35 |
| BT40QDC7Q18 | BT40 | 6000 RPM | D1-D7 | 10.8 Nm | D50 |
| BT40QDC7Q35 | BT40 | 6000 RPM | D1-D7 | 10.8 Nm | D50 |
| BT40QDC7Q52 | BT40 | 6000 RPM | D1-D7 | 10.8 Nm | D50 |
| BT40QDC8QD45 | BT40 | 6000 RPM | D4-D10 | 23 Nm | D45 |
| BT40QDC10 | BT40 | 6000 RPM | D4-D10 | 23 Nm | D51 |
| BT40QER11Q90 | BT40 | 8000 RPM | D1-D7 | 10.8 Nm | D75 |
| BT40QER11Q140 | BT40 | 8000 RPM | D1-D7 | 10.8 Nm | D75 |
| BT40QER11Q190 | BT40 | 8000 RPM | D1-D7 | 10.8 Nm | D75 |
| BT40QER16Q66 | BT40 | 8000 RPM | D1-D10 | 18 Nm | D100 |
| BT40QER16Q110 | BT40 | 8000 RPM | D1-D10 | 18 Nm | D100 |
| BT40QER16Q160 | BT40 | 8000 RPM | D1-D10 | 18 Nm | D100 |
| BT40QER16Q210 | BT40 | 8000 RPM | D1-D10 | 18 Nm | D100 |
| BT40QER16Q260 | BT40 | 8000 RPM | D1-D10 | 18 Nm | D100 |
| BT40QER16Q2X | BT40/HSK63A/SK40 | 8000 RPM | D1-D10 | 46 Nm | D132 |
| BT40QER25Q66 | BT40 | 6800 RPM | D1-D16 | 46 Nm | D130 |
| BT40QER25Q110 | BT40 | 6800 RPM | D1-D16 | 46 Nm | D130 |
| BT40QER25Q160 | BT40 | 6800 RPM | D1-D16 | 46 Nm | D130 |
| BT40QER25Q210 | BT40 | 6800 RPM | D1-D16 | 46 Nm | D130 |
| BT40QER25Q2X | BT40 | 6800 RPM | D1-D16 | 46 Nm | D140 |
| BT40QER25Q2XQ125 | BT40/BBT40 | 6800 RPM | D1-D16 | 46 Nm | D140 |
| BT40QER32Q80 | BT40 | 5000 RPM | D1-D20 | 65 Nm | D155 |
| BT40QER11MQ60 | BT40 | 6000 RPM | D1-D7 | 10.8 Nm | D55 |
| BT40QER11MQ100 | BT40 | 6000 RPM | D1-D7 | 10.8 Nm | D55 |
| BT40QER11MQ140 | BT40 | 6000 RPM | D1-D7 | 10.8 Nm | D55 |
| BT40QER11MQ210 | BT40 | 6000 RPM | D1-D7 | 10.8 Nm | D55 |
| BT40QER16MQ100 | BT40 | 8000 RPM | D1-D10 | 18 Nm | D77 |
| BT40QER16MQ170 | BT40 | 8000 RPM | D1-D10 | 18 Nm | D76 |
| BT40QER20MQ100 | BT40 | 6000 RPM | D1-D13 | 30 Nm | D85 |
| BT40QER20MQ150 | BT40 | 6000 RPM | D1-D13 | 30 Nm | D85 |
| BT40QER20MQ180 | BT40 | 6000 RPM | D1-D13 | 30 Nm | D85 |
| BT40QAER25MQ100 | BT40 | 6000 RPM | D1-D16 | 46 Nm | D95 |
| BT40QAER25MQ150 | BT40 | 6000 RPM | D1-D16 | 46 Nm | D95 |
| BT40QPER13 | BT40 | 6000 RPM | D1-D13 | 30 Nm | D75 |
| BT40QPER16Q59 | BT40 | 6000 RPM | D4-D10 | 25 Nm | D51 |
| BT40QPER20 | BT40 | 6000 RPM | D1-D13 | 30 Nm | D118 |
| BT40QFMB22MQF63 | BT40s | 3500 RPM | D22 | 46 Nm | D100 |
| BT40QW13 | BT40 | 6000 RPM | D1-D13 | 35 Nm | D130 |
| BT40QYW16 | BT40 | 6000 RPM | D1-D16 | 46 Nm | D118 |
| BT40QMNM3LQ150 | BT40 | 8000 RPM | D3 | 4.3 Nm | D25 |
| BT40QD13Q30° | BT40/HSK63/NT40/CAT40 | 4500 RPM | D1-D13 | 35 Nm | D130 |
| DK45QBT40QER25Q45° | BT40/HSK63/NT40 | 7500 RPM | D1-D16 | 46 Nm | D115 |
| BT40QZ10QL50 | BT40 | 6000 RPM | D1-D10 | 18.5 NM | D100 |
| BT40QAER25M | BT40 | 6000 RPM | D1-D16 | 46 Nm | D95 |
| BT40QER25L | BT40 | 6000 RPM | D1-D16 | 46 Nm | D142 |
| BT40QD30Q001 | BT40 | 6000 RPM | D8 | 18 Nm | D65 |
| BT40QD30Q002 / Boring | BT40 | 6000 RPM | D8 | 18 Nm | D65 |
| BT40QD30Q003 / Surface Milling | BT40 | 5000 RPM | D8 | 18 Nm | D65 |
| BT40QF25Q2X | BT40 | 6000 RPM | D10 | 26 Nm | 26*58 |
The taper alone does not decide fit. The retention stud thread has to match the machine, the head has to be held against spindle torque by the machine's stop block or stop pin, and the head body has to clear the part and the fixture at the cutting position. Mongtec confirms all three against your machine before quoting.
Every model in this catalogue is also available as a custom build. Reach, nose profile, output interface, angle, coolant routing and the stop arrangement can all be changed to suit the operation and the machine.
Already using another brand? Send us the drawing or the article number of the head you run today and Mongtec will convert it to an equivalent Mongtec head — same mounting, same reach, same output. You do not need to re-work the fixture or the programme.