HSK-A Mini ER Collet Chucks – HSK-A50, HSK-A63 and HSK-A100 (DIN 69893-1)

A mini ER collet chuck is a slim-nose ER-M collet chuck for small tools and deep cavities. PTP makes them with an HSK-A shank (DIN 69893-1 / ISO 12164-1) in HSK-A50, HSK-A63 and HSK-A100: ER11M to ER25M collets, gauge lengths 100–180 mm, 22 ordering codes in all. HSK-A tapers are clamped by the spindle itself, so no pull stud is needed. Taper AT3 or better, TIR 0.005 mm max, balanced G2.5 @ 25,000 rpm.

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Mini ER Collet Chucks, HSK-A shank: technical drawing with dimensions — Mini ER Collet Chucks with an HSK-A shank, from the PTP catalogue. Click to open it full size.

All 22 HSK-A mini ER collet chucks

One table per taper size. Every ordering code opens its own page with its dimensions (mm).

HSK-A50 mini ER collet chucks: 8 ordering codes

Ordering code	Collet	Clamping Range	Nut Ø (d)	Gauge Length (GPL)
47HSKA50ER11M100	ER11	0.5–7 mm	16 mm	100 mm
47HSKA50ER11M160	ER11	0.5–7 mm	16 mm	160 mm
47HSKA50ER16M100	ER16	1–10 mm	22 mm	100 mm
47HSKA50ER16M160	ER16	1–10 mm	22 mm	160 mm
47HSKA50ER20M100	ER20	1–13 mm	28 mm	100 mm
47HSKA50ER20M160	ER20	1–13 mm	28 mm	160 mm
47HSKA50ER25M100	ER25	1–16 mm	35 mm	100 mm
47HSKA50ER25M160	ER25	1–16 mm	35 mm	160 mm

HSK-A63 mini ER collet chucks: 8 ordering codes

Ordering code	Collet	Clamping Range	Nut Ø (d)	Gauge Length (GPL)
47HSKA63ER11M100	ER11	0.5–7 mm	16 mm	100 mm
47HSKA63ER11M160	ER11	0.5–7 mm	16 mm	160 mm
47HSKA63ER16M100	ER16	1–10 mm	22 mm	100 mm
47HSKA63ER16M160	ER16	1–10 mm	22 mm	160 mm
47HSKA63ER20M100	ER20	1–13 mm	28 mm	100 mm
47HSKA63ER20M160	ER20	1–13 mm	28 mm	160 mm
47HSKA63ER25M100	ER25	1–16 mm	35 mm	100 mm
47HSKA63ER25M160	ER25	1–16 mm	35 mm	160 mm

HSK-A100 mini ER collet chucks: 6 ordering codes

Ordering code	Collet	Clamping Range	Nut Ø (d)	Gauge Length (GPL)
47HSKA100ER16M120	ER16	1–10 mm	22 mm	120 mm
47HSKA100ER16M180	ER16	1–10 mm	22 mm	180 mm
47HSKA100ER20M120	ER20	1–13 mm	28 mm	120 mm
47HSKA100ER20M180	ER20	1–13 mm	28 mm	180 mm
47HSKA100ER25M120	ER25	1–16 mm	35 mm	120 mm
47HSKA100ER25M180	ER25	1–16 mm	35 mm	180 mm

Questions about HSK-A mini ER collet chucks

Does an HSK-A mini ER collet chuck need a pull stud?

No. The spindle clamps the HSK-A taper from inside, so there is no pull stud. For through-spindle coolant the holder takes an HSK-A coolant tube: 47CTHA050 for HSK-A50, 47CTHA063 for HSK-A63 and 47CTHA100 for HSK-A100.

HSK coolant tubes Spanners

What goes with an HSK-A mini ER collet chuck?

DIN 6499 ER collets (ER11, ER16, ER20 and ER25) and the ER-M mini collet nut of that size (36CCNER11M, 36CCNER16M, 36CCNER20M and 36CCNER25M).

ER collets DIN 6499 Mini ER collet nuts