Tool clamping technology

Here you will find tool clamping technology for stabilisation during milling or drilling - from quick-change systems to mandrels and drill chucks to numerous accessories. High-quality and robust tool clamping technology ensures reliable precision as well as minimised set-up, run-in and adjustment times.

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    Collet 320 470E-Ø 8, Type: ER32, µ=≤ 0,015, DIN6499 / ISO15488

    Logo WSW Spannwerkzeuge-Vertriebs GmbH Uhingen WSW Tooling Systems EWS Group
    • Nominal size (SZID):   32 
    • Unit number (UNNO):   470E 
    • Clamp diameter (DCB):   8.00  mm
     plus shipping
    Offered by2 dealersfrom  €17.20
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    17.BMT40DNL, Combiholder, Dia. 40

    Logo EWS Weigele GmbH Uhingen EWS Tool Technologies
    • Cantilever length (LPR):   110.00  mm
    • Functional length (LF):   80.00  mm
    • Mounting diameter, min. (DCONN):   40.00  mm
    • Shank size:   BMT60 94x84 (z. Bsp. DMG Mori NT 4200, DMG Mori NZX 2500, Takisawa TS-3000) 
    • Interface size:   Bohrstange Ø 40.0 
     plus shipping
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    Collets ER32 | 470 E | Ø 20-19 | DIN 6499 B (ISO 15488 B)

    Logo Kemmler Präzisionswerkzeuge GmbH Mössingen Precision Tooling
    • Nominal size (SZID):   32 
    • Unit number (UNNO):   470E 
    • Clamp diameter (DCB):   20.00  mm
     plus shipping
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    Micro ER 32 A=40 for Collet-Chucks according to DIN ISO 15488

    Logo Albrecht Präzision GmbH & Co.KG Wernau Precision Chucks
    • Nominal size (SZID):   32 
    • Clamp diameter (DCB):   10.09  mm
     incl. shipping
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    TESTit clamping force measuring device | TEST module for draw-in force | size HSK63 | max. measuring range axial 0 - 50 kN

    Logo Hainbuch GmbH Marbach Workholding Technology

    A regular check of the clamping force and draw-in force is imperative for a safe, precise, and productive process. These days no one can afford to manufacture with »theoretical clamping forces/draw-in forces«. Not to mention the fact that DIN EN 1550 requires that static clamping force measurements be carried out at regular intervals. The TESTit clamping force gauge measures and records the clamping force for O.D. clamping and I.D. clamping and even the draw-in force of hollow tapered shank locations. TESTit consists of two parts: The basic unit, which is the IT module, and the measuring units, which are the TEST modules. You only need the IT module once – regardless of whether you want to measure the clamping force at O.D. clamping or I.D. clamping or the draw-in force. It is so-to-speak the basis. Depending on the measurement application, there are different TEST modules that you can easily connect to the IT module via plug & play. Even special design TEST modules fit on the IT module. All aspects have been carefully considered! With TESTit you do not leave clamping force and draw-in force up to chance; you do prevent workpiece deformation and reduce scrap.

    • Clamping force measurement for O.D. and I.D. clamping
    • Draw-in force measurement of hollow tapered shanks
    • Two units, connected with plug & play: IT module – the basic unit, TEST module – add on for various measurement applications
    • Can be used rotating [under RPM] and for stationary applications
    • Software for visualization and archiving

    Please note:
    IT module and TEST module are available separately.
    System requirements software: Operating system Windows 10, version 1709 or higher.

    Scope of delivery

    • IT module [basic unit], battery operating time approx. 8 h
    • Measurement and archiving software [USB-Stick]
    • Bluetooth® stick
    • Storage case

    TESTit Software

    • 3 options for visualizing the measured results; bar graph, speedometer or line diagram [force / RPM diagram]
    • Archive the results as .pdf or .csv file
    • Bluetooth® connection for the TESTit devices
     plus shipping
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    SAFECONTROL 4.0-Measuring adapter HSK 80

    Logo Kelch GmbH Weinstadt
    Zur Messung der Spindeleinzugskräfte von Spannsystemen in Werkzeugmaschinen.
    Die Messung erfolgt über einen Präzisions-Kraftmessstab mit Dehnungs-Messstreifen. Dieser Kraftmessstab wird in die Maschinenspindel eingeführt und über das Spannsystem der Maschine angezogen. Die tatsächliche Einzugskraft kann direkt vom Anzeigegerät abgelesen werden.
    Je ein Messadapter. Basisgerät sowie der Koffer müssen bei Bedarf separat bestellt werden.
    Die SK-Messadapter sind auch für DIN 69893 Form E und F verwendbar.
    Die verschiedenen Messadapter sind nur mit dem Basisgerät 309.300 kompatibel und jederzeit einfach austauschbar.
     incl. shipping
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    1570MML AMF-Marker Medium

    Logo AMF Andreas Maier GmbH Fellbach We generate excitement
    Markierungswerkzeug, passend für 20 mm Spannzangen und Weldonaufnahmen.
    552306: kleinere Andrückkraft, bestens geeignet für Aluminium in Kombination mit Markiernadel 550479
    556949: höhere Andrückkraft, bestens geeignet für Stahl und Edelstahl
    Markiernadeln sind nicht im Lieferumfang enthalten.
    Material und Oberflächenbeschaffenheit:
    Der AMF-Marker Medium eignet sich für die Beschriftung von verschiedenen Werkstoffen, besonders jedoch für die Beschriftung von Aluminium, Kunststoff, Stahl und Edelstahl. Die Oberfläche des Bauteils kann dabei uneben sein.

    Schriftgröße und Schriftbreite:
    Zentrische Markiernadeln eignen sich für kleine Buchstaben und schmale Linien. Durch den Einsatz von exzentrischen Markiernadeln und die Rotation der Maschinenspindel wird die Schrift breiter. Für ein gutes Schriftbild beachten Sie bitte folgenden Hinweis:
    Spindeldrehzahl (1/min) / 10 = Vorschub (mm/min) Max. zulässige Drehzahl: 8.000 1/min

    Einstellung Nadeldruck und Losgröße:
    Durch die innenliegende Stellschraube ist die Anpassung des Nadeldrucks möglich. Da das Werkzeug hierzu aus der Aufnahme entnommen wird, empfehlen wir den AMF-Marker Medium für mittlere und große Losgrößen.
    Nadelwechsel und Nadelauswahl:
    Blitzschneller Nadelwechsel durch herausziehen der Markiernadel mittels einer Zange, beispielsweise mit unserer Spezial-Zange Nr. 1530Z. Für den AMF-Marker Medium sind zentrische und exzentrische Nadeln erhältlich.

    Abmessungen und Maschinengröße:
    Aufgrund der kompakten Bauart passt der AMF-Marker Medium in das Werkzeugmagazin von Fräs- und Drehmaschinen.
    - Beschriftung von verschiedenen Werkstoffen, besonders jedoch von Aluminium, Kunststoff, Stahl und Edelstahl, auch mit unebener Oberfläche
    - zentrische und exzentrische Markiernadeln verfügbar
    - innenliegende Stellschraube zum Einstellen des Nadeldrucks
    - blitzschneller Nadelwechsel
    - kompakte Bauart

    D1: 3 mm
    D1: 3 mm
    D2: 20 mm
    L1: 93 mm
    L2: 88 mm
    L3: 6 mm
    L4: 65 mm
    L5: 50 mm
    L6: 46,5 mm
    L7: 8 mm
    L8: 6 mm
    Gewicht: 78 g
     plus shipping
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    Collet 320 470E-Ø 4, Type: ER32, µ=≤ 0,015, DIN6499 / ISO15488

    Logo WSW Spannwerkzeuge-Vertriebs GmbH Uhingen WSW Tooling Systems EWS Group
    • Nominal size (SZID):   32 
    • Unit number (UNNO):   470E 
    • Clamp diameter (DCB):   4.00  mm
     plus shipping
    Offered by2 dealersfrom  €17.20
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    40.6832QSMBMTEKIM, Axial drilling and milling head i = 1:1, Collet RD/ER 32 470 E (2-20)

    Logo EWS Weigele GmbH Uhingen EWS Tool Technologies
    • Max. rotational speed, input (RPMX):   6000  min-1
    • Shank size:   BMT68 110x68 (z. Bsp. Mazak QSM200, QSM100) 
    • Interface size:   Spannzange ER32 
    • Coupling:   2-Flach 
     plus shipping
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    Collets ER32 | 470 E | Ø 16-15 | DIN 6499 B (ISO 15488 B)

    Logo Kemmler Präzisionswerkzeuge GmbH Mössingen Precision Tooling
    • Nominal size (SZID):   32 
    • Unit number (UNNO):   470E 
    • Clamp diameter (DCB):   16.00  mm
     plus shipping
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Basic knwoledge about tool clamping technology

Tool clamping technology includes a wide range of options for connecting the tool to the processing machine. The tool is clamped in a fixture - either electrically, mechanically, pneumatically, by vacuum or hydraulically. The holder, in turn, can then be inserted into the machine.

Features that distinguish tool clamping systems from each other are, for example, the change accuracy and the speed range. An important key figure for users is, of course, also the service life of the holders. The following factors favour successful production:

  • Good axial and radial runout accuracy
  • High repeatability
  • Optimum bending and torsional rigidity
  • Option for high rotational frequencies
  • Good clamping force
  • Good vibration damping

Tool holders for numerous applications in the tool-arena

The Tool-Arena offers a wide range of tool clamping technology for the individual requirements of your machining strategy, such as the cutting processes HSC (High Speed Cutting) or HPC (High Performance Cutting). Here you will find driven and static toolholders as well as highly developed clamping systems for the standardised interfaces SK (steep taper), HSK (hollow shank taper) and PSC (polygon shank taper).

Among the drill chucks in the Tool-Arena you will find the desired clamping range - from short drill chucks to drill rod blanks. You will also find what you are looking for in the collet range. Among other things, our online marketplace stocks suitable collet chucks, power chucks as well as tapping chucks and shrink fit chucks. You can also get reducing sleeves as well as a large selection of extensions and adapters via Tool-Arena.

Which clamping system suits my application?

In most cases, a taper shank is used to connect the tool to the machine spindle. Different holders are used to clamp the tool on the steep or hollow shank taper. The following table provides an overview:

Tool holder


More information

Collet Chuck

Mechanical clamping device, universally applicable

Standardised according to DIN 6388 or DIN 6499 (ER)

Weldon adapter

Mechanical clamping device for milling applications

Advantage: Torque strength due to short surfaces;

disadvantages in concentricity

Drill chuck

Mechanical clamping device for milling applications

Advantage: higher stability due to longer shaft;

Disadvantage: not to be used for high-precision manufacturing

Shrink chuck

Shrink fit equipment

Advantages: very high concentricity, suitable for high-speed milling (HSC), easy tool change

Hydraulic expansion chuck

All common interfaces

Advantage: very good workpiece results due to high concentricity and vibration damping

Time saving due to quick-change systems


Process-safe quick-change system from EWS: EWS Varia VX

Time is money, also in the machining industry. Therefore, a tool change must be quick and precise; a good quick-change system is indispensable for flexible production. Different tool holders can be used for quick-change systems. These can be collet chucks, milling arbours or hydraulic chucks.

Ideally, the tool can be changed in just a few steps via a single clamping point that finally clamps the tool. This keeps the risk of injury low and avoids loose parts. In addition to these advantages, it should be emphasised for quick-change systems that all cutting tools are preset and ready to be changed.