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BT30 ER collet chucks

BT30 ER32 Collet Chucks (MAS 403): Gauge Lengths 60 and 100 mm

BT30 ER32 collet chucks hold round-shank drills, reamers and end mills in a DIN 6499 ER32 collet, closed by the ER32 clamping nut (M22x1.5). PTP makes them with a BT shank (MAS 403 / JIS B6339, ISO 7388-2 type J) in gauge lengths of 60 and 100 mm, for tool shanks of 2–20 mm. Ordering codes: 2. BT30 holders are pulled into the spindle by an M12 MAS-BT or JIS B6339 pull stud. Taper AT3 or better, TIR 0.005 mm max, balanced G2.5 @ 25,000 rpm.

BT30 ER32 collet chucks: 2 ordering codes

Every ordering code opens its own page with the drawing and every dimension (mm).

Ordering codeClamping RangeNut Ø (d)Gauge Length (GPL)
47BT30ER32602–20 mm50 mm60 mm
47BT30ER321002–20 mm50 mm100 mm

BT30 ER32 collet chuck

PTP catalogue drawing, dimensions in mm

BT30 ER32 collet chuck: technical drawing with dimensions
ER collet chuck drawing from the PTP catalogue. Click to open it full size.

Questions about BT30 ER32 collet chucks

What is the clamping range of a BT30 ER32 collet chuck?

2–20 mm. ER32 collets to DIN 6499 clamp tool shanks from 2 to 20 mm, one collet for each size step.

ER collets DIN 6499 ER collet size chart

Which pull stud does a BT30 ER32 collet chuck need?

An M12 BT30 pull stud: MAS-BT with the head angle your drawbar takes (45° or 60°).

BT30 pull studs

Which nut and collets fit a BT30 ER32 collet chuck?

ER32 collets to DIN 6499 and the ER32 clamping nut: slotted 36CCNER32. For coolant-through tools, an ER32 sealing ring (15 sizes, 36CCNER32SR060 to 36CCNER32SR200).

ER collets DIN 6499 Slotted ER collet nuts ER sealing rings

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