steadyline® boring bars...turning/boring bars (gl32/gl40/gl50), with hsk-t/a and seco-capto c8...

STEADYLINE® BORING BARS RANGE EXTENSION: HSK-T/A AND SECO-CAPTO™ C8

Copyright © Seco Tools AB

Range extension

Extension of the range of Steadyline turning/boring bars (GL32/GL40/GL50),

with HSK-T/A and Seco-Capto C8 machine

side connection

2

GL32

C4

C5

C6

HSK-T/A63

HSK-T/A100 D32

DA20 (1.25’’)

C5

C6

HSK-T/A63

HSK-T/A100 D40

DA24 (1.5’’)

C5

C6

C8

HSK-T/A100 D40

DA24 (1.5’’)

GL40

C6

C8

HSK-T/A63

HSK-T/A100 D50

DA32 (2’’)

C6

C8

HSK-T/A63

HSK-T/A100 D50

DA32 (2’’)

C6

C8

HSK-T/A100 D50

DA32 (2’’)

GL50

10xD

8xD

6xD

C4

C5

C6

C8

HSK-T/A100 D32

DA20 (1.25’’)

C5

C6

C8

HSK-T/A63

HSK-T/A100 D40

DA24 (1.5’’)

C4

C5

C6

C8

HSK-T/A63

HSK-T/A100 D32

DA20 (1.25’’)


HSK-T vs. HSK-A toolholders

Steadyline bars with HSK-T/A machine side connection are fully compatible with:

• HSK-T spindles on lathes, for static turning

operations

• HSK-A spindles on machining centers, for

rotating boring operations

HSK-T machine side connection features one driving slot slightly narrower and with tighter

tolerances than HSK-A.

Tighter tolerances also on the machine spindle driving key.

3

HSK-A HSK-T


HSK-T and HSK-A: tolerances and gaps

between spindle and holder

4

Spindle drive key

Holder key way

HSK-A spindle, HSK-A holder

A

A

Min gap

Max gap

Spindle drive key

Holder key way

HSK-T spindle, HSK-T holder

T

T

Min gap

Max gap

Spindle drive key

Holder key way

HSK-A spindle compatible with HSK-T holder

A

Max gap

T

Min gap

A

Min gap

Spindle drive key

Holder key way

HSK-T spindle compatible with HSK-A holder

T

Max gap


Toolholder and spindle angular

clearance

5


Steadyline HSK-T/A toolholders

Steadyline bars feature “HSK-T/A” tapers: a combination of both norms

Behind the gage line: according to the HSK-T norm

• Tightest tolerances on driving slot,

required in turning operations

In front of the gage line: according to the HSK-A norm

• Pre-balancing (for rotating operations)

• Slot for Balluff chips

• Front diameter according to HSK-A

norm, compatible with «HSK-A» and

«HSK-T» tool changers

6

HSK-T HSK-A

Gage line

Safe zone Safe zone


HSK-T and HSK-A: tolerances and gaps

between spindle and holder

7

Spindle drive key

Holder key way

HSK-A spindle, HSK-A holder

A

A

Min gap

Max gap

Spindle drive key

Holder key way

HSK-T spindle, HSK-T holder

T

T

Min gap

Max gap

HSK-T spindles and toolholders

used on lathes to guarantee an

accurate positioning of the

cutting tool during turning

operations

HSK-A toolholders are

prebalanced for rotating

operations (boring) on machining

centres


Steadyline HSK-T/A toolholders

8

Steadyline HSK-T/A

Suitable both for

TURNING and

BORING operations

Boring heads with GL

machine side connection

Turning heads with GL

machine side connection

HSK-T spindles and toolholders

used on lathes to guarantee an

accurate positioning of the

cutting tool during turning

operations

HSK-A toolholders are

prebalanced for rotating

operations (boring) on machining

centres


Review – Boring heads for Steadyline Rough boring heads dia. 36-69 mm

Simplicity

• 2 radial Push/Pull screws

• Clamping of insert carriers through 4 bolts

• No need for extra training

Compact design, strong insert carrier design • Robust

• Reduced weight

• 90°, meaning less radial forces, for CC09/CC12 ISO inserts

Body in stainless steel, sand-blasted • Resistant to corrosion

• Long service life

Symmetrical or staggered boring (thru shim) • Adapted to all kinds of applications

• Efficient

GL Connection • Flexible, rigid, accurate

Through coolant

9


Review – Boring heads for Steadyline Rough boring heads dia. 34-69 mm

Simple to use – same principle as A780 fine boring heads

Compact and short design, lightweight and near the mass for best damping performance

Same insert carriers as for A780 series • Bears against head body for stable cutting

• Less inventory

Fine pitch micro spindle screw • Setting at 2.5µm

• Easy access to Vernier, ergonomic

Body in stainless steel, hardened • Resistant to corrosion

• Long service life (can be repaired)

GL Connection • Flexible, rigid, repeatable accuracy

Through coolant • Improved cutting conditions

• Longer insert life

10


Review – Mounting Steadyline

turning/boring bars on machining centres Seco-Capto spindles:

• use Seco-Capto turning/boring bars

HSK-A or HSK-T spindles: • use HSK-T/A boring bars

SA spindles (DIN, BT, CAT): • use the shortest Seco-Capto basic arbor (A length ≤

40 mm) to adapt a Seco-Capto bar on an SA spindle

• If using a Seco-Capto basic arbor with A-length > 40

mm, tuning of the whole assembly is necessary to

guarantee relevant operational outputs of the

Steadyline bar. Please inquire through ZYN.

Always respect the maximum cutting speeds indicated in the user instruction.

11


Summary

Extension of the range of Steadyline turning/boring bars (GL32/GL40/GL50),

with HSK-T/A and Seco-Capto C8 machine

side connection

HSK-T/A machine side connection suitable both for turning operations on lathes and

boring operations on machining centres

See Steadyline sales guide for further details on the Steadyline vibration damping

technology or contact

[email protected]

12

GL32

C4

C5

C6

HSK-T/A63

HSK-T/A100 D32

DA20 (1.25’’)

C5

C6

HSK-T/A63

HSK-T/A100 D40

DA24 (1.5’’)

C5

C6

C8

HSK-T/A100 D40

DA24 (1.5’’)

GL40

C6

C8

HSK-T/A63

HSK-T/A100 D50

DA32 (2’’)

C6

C8

HSK-T/A63

HSK-T/A100 D50

DA32 (2’’)

C6

C8

HSK-T/A100 D50

DA32 (2’’)

GL50

10xD

8xD

6xD

C4

C5

C6

C8

HSK-T/A100 D32

DA20 (1.25’’)

C5

C6

C8

HSK-T/A63

HSK-T/A100 D40

DA24 (1.5’’)

C4

C5

C6

C8

HSK-T/A63

HSK-T/A100 D32

DA20 (1.25’’)

Steadyline® Boring Bars�Range Extension: HSK-T/A And seco-Capto™ C8Range extensionHSK-T vs. HSK-A toolholdersHSK-T and HSK-A: tolerances and gaps between spindle and holderToolholder and spindle angular �clearanceSteadyline HSK-T/A toolholdersHSK-T and HSK-A: tolerances and gaps between spindle and holderSteadyline HSK-T/A toolholdersReview – Boring heads for Steadyline�Rough boring heads dia. 36-69 mm�Review – Boring heads for Steadyline�Rough boring heads dia. 34-69 mm�Review – Mounting Steadyline turning/boring bars on machining centresSummaryFoliennummer 13

steadyline® boring bars...turning/boring bars (gl32/gl40/gl50), with hsk-t/a and seco-capto c8...

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