HSK-A125 Shrink Fit Chuck Power Shrink Chuck

Certificate of Quality

Chuck body fine balanced G2.5 at 25.000 rpm or U < 1 gmm
All functional surfaces fine machined
More accurate than DIN
Cool Jet, can be sealed

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HSK-A125 Shrink Fit Chuck Power Shrink Chuck

Power Shrink Chuck with Safe-Lock™
DIN 69893-1 · HSK-A125

Certificate of Quality

Chuck body fine balanced G2.5 at 25.000 rpm or U < 1 gmm
All functional surfaces fine machined
More accurate than DIN
Cool Jet, can be sealed

Power Shrink Chuck with Safe-Lock™
DIN 69893-1 · HSK-A125

Shrink fit chuck suitable to all inductive shrink fit units.

The Power Shrink Chuck is the shrink fit chuck for highest machining capacity in high-speed manufacturing. The optimized design combines high rigidity with dampening vibrations, therefore giving more protection to machines, spindles and tools.

Increased machining capacity due to higher spindle speed, higher feed and larger cutting depth
Shorter processing times
Quieter running, therefore better surface quality and protection of tools, spindles and machines
Higher machining accuracy
With internal groove in the clamping bore
With threaded holes in order to balance with balancing screws
With Cool Jet bores that can be sealed (Thread M4) and 6 bores
Higher coolant flow rate due to optimized coolant bores
Cooling with Cool Flash for an extra charge
Safe-Lock™ pull out protection included

The long versions (oversize and ZG200/ZG9 inch) with slim tips are especially versatile to use.

High rigidity, slim at the tip, dampen vibrations
High clamping force
Equally suited to high-speed manufacturing and heavy milling
Universal usage, saves space in tool magazine

Technical data subjects to change without prior notice.

Features Power Shrink Chuck

The most important features:

1. High runout accuracy (< 3 μm)
2. Low tendency towards vibrations by optimised outer geometry
3. Slim design at the top
4. Very rigid shank
5. Standard with Cool Jet (can be re-sealed)
6. Dirt groove in the clamping bore for safe clamping force
7. Safe-Lock™ (optional)

Features Power Shrink Chuck

The most important features:

1. High runout accuracy (< 3 μm)
2. Low tendency towards vibrations by optimised outer geometry
3. Slim design at the top
4. Very rigid shank
5. Standard with Cool Jet (can be re-sealed)
6. Dirt groove in the clamping bore for safe clamping force
7. Safe-Lock™ (optional)

Safe-Lock™ for Shrink Fit Chucks

Safe-Lock™ pull out protection

Highly accurate clamping due to shrink fit technology
High torque due to form closed clamping
No loss of accuracy
No pull out and no spinning ot the tool
Groove on tool shank is directed so that the tool will be pulled into the chuck (depending on direction of rotation)

Safe-Lock™ for Shrink Fit Chucks

Safe-Lock™ pull out protection

Highly accurate clamping due to shrink fit technology
High torque due to form closed clamping
No loss of accuracy
No pull out and no spinning ot the tool
Groove on tool shank is directed so that the tool will be pulled into the chuck (depending on direction of rotation)

Cool Jet for Shrink Fit Chucks

Cool Jet

Optimized coolant bores, aimed at center
Coolant directly to the cutting edge
Extended tool life up to 100%
Higher reliability of cutting process
No more balls of chips on tool

Cool Jet for Shrink Fit Chucks

Cool Jet

Optimized coolant bores, aimed at center
Coolant directly to the cutting edge
Extended tool life up to 100%
Higher reliability of cutting process
No more balls of chips on tool

Cool Flash

Cool Flash (optional)

Optimized coolant bores with coolant outlet through slots
Coolant directly to the cutting edge
Extended tool life up to 100%
No more balls of chips on tool
Optimized runout accuracy! No additional unbalance! No disturbing clearance!
Cool Flash available for shank diameter 1/4" (6 mm) - 1 1/4" (25 mm)

Cool Flash

Cool Flash (optional)

Optimized coolant bores with coolant outlet through slots
Coolant directly to the cutting edge
Extended tool life up to 100%
No more balls of chips on tool
Optimized runout accuracy! No additional unbalance! No disturbing clearance!
Cool Flash available for shank diameter 1/4" (6 mm) - 1 1/4" (25 mm)

Machining example Power Shrink Chuck vs. Standard Shrink Cuck

Machining example Power Shrink Cuck

Milling - Ø: 16 mm; n = 13.000 rpm, Feed rate: vf = 5,2 m/min
Right: Power Shrink Chuck (Length: A = 160 mm, cutting depth: ap = 3,6 mm)
Left: Standard Shrink Chuck (Length: A = 160 mm; Cutting depth: ap = 1,8 mm)

Machining example Power Shrink Chuck vs. Standard Shrink Cuck

Machining example Power Shrink Cuck

Milling - Ø: 16 mm; n = 13.000 rpm, Feed rate: vf = 5,2 m/min
Right: Power Shrink Chuck (Length: A = 160 mm, cutting depth: ap = 3,6 mm)
Left: Standard Shrink Chuck (Length: A = 160 mm; Cutting depth: ap = 1,8 mm)

HSK-A125 Shrink Fit Chuck Power Shrink Chuck Technical Drawing

Clamping Ø D1 [inch]	3/8
Ø D2 [inch]	1.06
Ø D3 [inch]	4.29
L [inch]	1.65

Order No.

Gage length A in inch

A125.140.3/8z.37.I

ZG5 inch, 5.00 inch

Thread M3, 2 bores

DXF

Step

A125.142.3/8Z.37.I

oversize, 7.00 inch

Thread M3, 2 bores

DXF

Step

A125.146.3/8Z.37.I

ZG9 inch, 9.00 inch

Thread M3, 2 bores

DXF

Step

Clamping Ø D1 [inch]	1/2
Ø D2 [inch]	1.06
Ø D3 [inch]	4.29
L [inch]	1.85

Order No.

Gage length A in inch

A125.140.1/2Z.37.I

ZG5 inch, 5.00 inch

Thread M3, 2 bores

DXF

Step

A125.142.1/2Z.37.I

oversize, 7.00 inch

Thread M3, 2 bores

DXF

Step

A125.146.1/2Z.37.I

ZG9 inch, 9.00 inch

Thread M3, 2 bores

DXF

Step

Clamping Ø D1 [inch]	5/8
Ø D2 [inch]	1.30
Ø D3 [inch]	4.29
L [inch]	1.97

Order No.

Gage length A in inch

A125.140.5/8Z.37.I

ZG5 inch, 5.00 inch

Thread M3, 2 bores

DXF

Step

A125.142.5/8Z.37.I

oversize, 7.00 inch

Thread M3, 2 bores

DXF

Step

A125.146.5/8Z.37.I

ZG9 inch, 9.00 inch

Thread M3, 2 bores

DXF

Step

Clamping Ø D1 [inch]	3/4
Ø D2 [inch]	1.73
Ø D3 [inch]	4.29
L [inch]	2.05

Order No.

Gage length A in inch

A125.140.3/4Z.37.I

ZG5 inch, 5.00 inch

DXF

Step

A125.142.3/4Z.37.I

oversize, 7.00 inch

DXF

Step

A125.146.3/4Z.37.I

ZG9 inch, 9.00 inch

DXF

Step

Clamping Ø D1 [inch]	1
Ø D2 [inch]	1.73
Ø D3 [inch]	4.29
L [inch]	2.28

Order No.

Gage length A in inch

A125.140.1Z.37.I

ZG5 inch, 5.00 inch

DXF

Step

A125.142.1Z.37.I

oversize, 7.00 inch

DXF

Step

A125.146.1Z.37.I

ZG9 inch, 9.00 inch

DXF

Step

Clamping Ø D1 [mm]	10
Ø D2 [mm]	27
Ø D3 [mm]	109
L [mm]	42

Order No.

Gage length A in mm

A125.140.10.37

ZG130, 130.00 mm

Thread M3, 2 bores

DXF

Step

A125.142.10.37

oversize, 160.00 mm

Thread M3, 2 bores

DXF

Step

A125.146.10.37

ZG200, 200.00 mm

Thread M3, 2 bores

DXF

Step

Clamping Ø D1 [mm]	12
Ø D2 [mm]	27
Ø D3 [mm]	109
L [mm]	47

Order No.

Gage length A in mm

A125.140.12.37

ZG130, 130.00 mm

Thread M3, 2 bores

DXF

Step

A125.142.12.37

oversize, 160.00 mm

Thread M3, 2 bores

DXF

Step

A125.146.12.37

ZG200, 200.00 mm

Thread M3, 2 bores

DXF

Step

Clamping Ø D1 [mm]	16
Ø D2 [mm]	33
Ø D3 [mm]	109
L [mm]	50

Order No.

Gage length A in mm

A125.140.16.37

ZG130, 130.00 mm

DXF

Step

A125.142.16.37

oversize, 160.00 mm

DXF

Step

A125.146.16.37

ZG200, 200.00 mm

DXF

Step

Clamping Ø D1 [mm]	20
Ø D2 [mm]	44
Ø D3 [mm]	109
L [mm]	52

Order No.

Gage length A in mm

A125.140.20.37

ZG130, 130.00 mm

DXF

Step

A125.142.20.37

oversize, 160.00 mm

DXF

Step

A125.146.20.37

ZG200, 200.00 mm

DXF

Step

Clamping Ø D1 [mm]	25
Ø D2 [mm]	44
Ø D3 [mm]	109
L [mm]	58

Order No.

Gage length A in mm

A125.140.25.37

ZG130, 130.00 mm

DXF

Step

A125.142.25.37

oversize, 160.00 mm

DXF

Step

A125.146.25.37

ZG200, 200.00 mm

DXF

Step

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