BT50 ER collet chucks
BT50 ER16 Collet Chucks (MAS 403): Gauge Lengths 80, 100, 150, 200 and 250 mm
BT50 ER16 collet chucks hold round-shank drills, reamers and end mills in a DIN 6499 ER16 collet, closed by the ER16 clamping nut (M10x1). PTP makes them with a BT shank (MAS 403 / JIS B6339, ISO 7388-2 type J) in gauge lengths of 80, 100, 150, 200 and 250 mm, for tool shanks of 1–10 mm. Ordering codes: 5. BT50 holders are pulled into the spindle by an M24 MAS-BT or JIS B6339 pull stud. Taper AT3 or better, TIR 0.005 mm max, balanced G2.5 @ 25,000 rpm.
BT50 ER16 collet chucks: 5 ordering codes
Every ordering code opens its own page with the drawing and every dimension (mm).
| Ordering code | Clamping Range | Nut Ø (d) | Gauge Length (GPL) |
|---|---|---|---|
| 47BT50ER1680 | 1–10 mm | 28 mm | 80 mm |
| 47BT50ER16100 | 1–10 mm | 28 mm | 100 mm |
| 47BT50ER16150 | 1–10 mm | 28 mm | 150 mm |
| 47BT50ER16200 | 1–10 mm | 28 mm | 200 mm |
| 47BT50ER16250 | 1–10 mm | 28 mm | 250 mm |
BT50 ER16 collet chuck
PTP catalogue drawing, dimensions in mm
Questions about BT50 ER16 collet chucks
What is the clamping range of a BT50 ER16 collet chuck?
1–10 mm. ER16 collets to DIN 6499 clamp tool shanks from 1 to 10 mm, one collet for each size step.
Which pull stud does a BT50 ER16 collet chuck need?
An M24 BT50 pull stud: MAS-BT with the head angle your drawbar takes (45°, 60° or 90°), or JIS B6339 with a 15° head.
Which nut and collets fit a BT50 ER16 collet chuck?
ER16 collets to DIN 6499 and the ER16 clamping nut: slotted 36CCNER16 or hex 36CCNER16A. For coolant-through tools, an ER16 sealing ring (5 sizes, 36CCNER16SR060 to 36CCNER16SR100).
ER collets DIN 6499 Slotted ER collet nuts Hex ER collet nuts ER sealing rings