HSK-A50 Hydraulic Expansion Chuck

K1030662913528318 article numbers

High Clamping Force
Runout ≤ 0.003 mm

A hydraulic expansion chuck that clamps the shank with a uniform oil film. One hex screw sets the pressure, and the film damps chatter that a rigid holder would pass straight into the cutting edge.

Type of Product: Hydraulic Expansion Chuck
Interface: HSK-A (DIN 69893-1)
Shank & Holder: HSK-A50
Clamping Ø: Ø6, Ø8, Ø10, Ø12, Ø14, Ø16, Ø18, Ø20, 1/4", 5/16", 3/8", 1/2", 5/8", 3/4"
Standard: DIN 69893-1 Form A
Coolant Supply: Central

Order number

18 articles match

Select the dimensions below to find your order number.

Clamping diameter

d · mm

Diameter D2

D2 · mm

Balanced G2.5 @ 25,000 rpmCatalogue Volume 1, p. 69

Description

A hydraulic expansion chuck that clamps the shank with a uniform oil film. One hex screw sets the pressure, and the film damps chatter that a rigid holder would pass straight into the cutting edge.

Quality assurance

High Clamping Force

Runout ≤ 0.003 mm
Excellent Damping
Balanced G2.5 @ 25,000 rpm
In Stock

Features

Runout under 0.003 mm at 2.5× diameter, repeatable over the tool life
Clamps and releases with a single hex key — no heating, no external equipment
Oil film raises tool life by up to 30% in reaming and finish milling
Reduction sleeves take the clamping range down without loss of accuracy

Technical specifications

Type of Product	Hydraulic Expansion Chuck
Interface	HSK-A (DIN 69893-1)
Shank & Holder	HSK-A50
Clamping Ø	Ø6, Ø8, Ø10, Ø12, Ø14, Ø16, Ø18, Ø20, 1/4", 5/16", 3/8", 1/2", 5/8", 3/4"
Standard	DIN 69893-1 Form A
Coolant Supply	Central
Balancing Grade	G2.5 @ 25,000 rpm
Availability	In Stock

Dimension table

18 article nos.

18 article numbers

Item name	dmm	D1mm	D2mm	G	Lmm	L1mm	L2mm	Weightkg
HSK-A 50 HC12S 085 2.5G 25000 SL	12	42	—	M10	85	40	—	0.986
HSK-A 50 HC20S 090 2.5G 25000 SL	20	50	—	M8	90	42	—	1.142
HSK-A 50 HC1/2''S 085 2.5G 25000 SL	1/2"	42	—	M10	85	40	—	—
HSK-A 50 HC3/4''S 090 2.5G 25000 SL	3/4"	50	—	M8	90	42	—	—
HSK-A 50 HC06 070 2.5G 25000 SL	6	26	40	M5	70	37	28	0.681
HSK-A 50 HC08 070 2.5G 25000 SL	8	28	40	M6	70	37	28	0.691
HSK-A 50 HC10 075 2.5G 25000 SL	10	30	40	M8	75	41	34	0.708
HSK-A 50 HC12 085 2.5G 25000 SL	12	32	40	M10	85	46	44	0.884
HSK-A 50 HC14 085 2.5G 25000 SL	14	34	40	M10	85	46	44	0.798
HSK-A 50 HC16 090 2.5G 25000 SL	16	38	53	M12	90	49	30	1.134
HSK-A 50 HC18 090 2.5G 25000 SL	18	40	53	M12	90	49	30	1.136
HSK-A 50 HC20 090 2.5G 25000 SL	20	42	57	M16	90	51	29	1.166
HSK-A 50 HC1/4'' 070 2.5G 25000 SL	1/4"	26	40	M5	70	37	28	—
HSK-A 50 HC5/16'' 070 2.5G 25000 SL	5/16"	28	40	M6	70	37	28	—
HSK-A 50 HC3/8'' 075 2.5G 25000 SL	3/8"	30	40	M8	75	41	34	—
HSK-A 50 HC1/2'' 085 2.5G 25000 SL	1/2"	32	40	M10	85	46	44	—
HSK-A 50 HC5/8'' 090 2.5G 25000 SL	5/8"	38	53	M12	90	49	30	—
HSK-A 50 HC3/4'' 090 2.5G 25000 SL	3/4"	42	57	M16	90	51	29	—

Need a modified version? We build to print.

Special gauge lengths, clamping diameters and interfaces — engineered and manufactured in-house at Pune.