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CNC machine accessories / Tooling

VDI · BMT · Capto

Tool holders for CNC lathes

Static and driven tool holders for turning centers, Swiss-type lathes and multi-spindle automatics, designed for the specific machine and turret, with VDI, BMT and Coromant Capto interfaces.

Broaching

on the lathe, with a driven unit

80+

machine builders covered

80 bar

internal coolant

3 interfaces

VDI · BMT · Capto

80,000 rpm

CoolSpeed® speed

When is it the right choice?

Where cycle time is decided on the turret.

The quality of the driven tool holder determines how rigid milling and drilling are on the lathe, how long changeovers take and how long the tool lasts. WTO supplies holders made for your machine, based on the machine builder's data.

Applications

Turning centers with live tooling

Swiss-type lathes, multi-spindle automatics

Y-axis machines, multiple holders

Benefits

Machine-specific range for 80+ machine builders

Internal coolant up to 80 bar

Hardened and ground design

WTO QuickFlex

QuickFlex® quick change system

QuickFlex®: one-hand tool changes in seconds.

Driven tool holders with an ER collet chuck that can be upgraded to quick change at any time with QuickFlex® adapters. Tools are preset outside the machine. The QuickFlex® smart version adds online condition monitoring, and nanoFlex® is the quick change system for Swiss-type lathes.

Key data

Sizes ER-20 to ER-50

Max. 0.005 mm runout with two taper connections

Adapters for ER, Weldon, shrink fit and hydro chucks, tapping

Benefits

Presetting outside the machine

One-hand change with a patented wrench

smart: speed, temperature and vibration online

CoolSpeed® high-speed spindle

CoolSpeed®: 80,000 rpm from the machine's coolant.

A turbine-driven high-speed spindle powered by the machine's own coolant, with no motor or cabling. It gives small-diameter tools the cutting speed they need for milling, drilling, grinding, deburring and engraving.

Versions

mini: 30,000–80,000 rpm, air mist too

Flex: 1–5 adjustable jets, from 8 l/min

MAX: two turbines, up to 1,100 W

Benefits

No motor, no cabling

Fits standard tool holders

Longer life for small tools

WTO CoolSpeed Flex
WTO Broaching Unit

Broaching Unit

Broaching Unit: keyways and splines on the lathe.

Oriented keyways and internal or external involute splines (DIN 5480, DIN 5482) broached on the lathe in one setup. The same insert holder works for ID and OD broaching, simply rotated by 180°.

Key data

Working stroke 32 or 52 mm

Up to 1,000 strokes/min, 12 mm groove width

Materials up to 1,200 N/mm²

Benefits

ID and OD broaching with one insert holder

Lift-off function protects the edge

OD and face mounted versions

Power Skiving Unit

Power Skiving Unit: gears and splines in one setup.

High-productivity machining of internal and external gears and splines on turning centers. Tool and workpiece rotate in sync, and the machine's Y axis compensates the offset.

Key data

Up to 3,000 rpm, 63 Nm

±45° swing with sine bar

Ø20 mm hydro chuck (DIN 1835A)

Benefits

Internal and external gears, splines

Minimal runout, fast tool changes

Internal and external coolant, up to 80 bar

WTO Power Skiving Unit
WTO Gear Hobbing Unit

Gear Hobbing Unit

Gear Hobbing Unit: gears on your turn/mill center.

Hobbing of spur and helical gears and splines (DIN 5480, DIN 5482, TORX) on turn/mill centers. Shifting the hob along the Y axis uses every cutting edge.

Key data

Up to module 6, in 4 sizes

Up to 6,000 rpm, ±30° swing

Gear quality ISO 1328 8 / AGMA 8

Benefits

Spur and helical gears, splines

Presettable hob, interchangeable arbor

Removable counter support for fast changes

Thread Whirling Unit

Thread Whirling Unit: fast tool changes for thread whirling.

High-productivity thread whirling on the lathe, with a patented quick change system that significantly cuts tool change time.

Key data

42BJ: up to Ø12 mm, 0–20°, 8,000 rpm

54BJ: up to Ø22 mm, 0–30°, 6,000 rpm

±0.005 mm runout and repeatability

Benefits

Insert holder changed from the back

The unit stays aligned in the machine

Insert holders: Horn, Schwanog, Utilis

WTO Thread Whirling Unit

From the manufacturer

The full WTO tool holder range, searchable by machine type in the online catalog.

Related products

Good to pair with.

Request tool holders made for your machine.

Tell us the machine type and the turret, and we'll recommend the right holders from the WTO range within 1 day.