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  1. Homepage
  2. Tool clamping technology
  3. Toolholders
  4. TRIBOS Polygonal Toolholders

TRIBOS Polygonal Toolholders

From micro to macro

TRIBOS shows its strength in highly precise micromachining right up to large volume cutting. With its patented TRIBOS polygonal clamping technology, SCHUNK offers a toolholding system that stands out due to its versatile and extensive range of applications.
Excellent concentricity properties of < 0.003 mm ensure a longer service life and the best surface qualities. TRIBOS is absolutely maintenance-free, and due to its honeycomb/anchor structure, it dampens vibrations in an ideal way. Intermediate sleeves additionally create versatile clamping ranges.

Our performance promise. Your benefits.

  • From micro to super finish machining, up to heavy-duty and volume metal cutting
  • Concentricity property < 0,003 mm
  • Absolutely maintenance-free
  • Best vibration damping
  • Rotationally symmetric design
    • SCHUNK tools
    Toolholder quickfinder
    Machine side interface
    Please choose
    Projecting length L1 [mm]
    Please choose
    Clamping diameter D1
    Please choose
    All filters
    Filter
    Machine side interface
    CAT 44
    ER 84
    HJND 15
    HSK-A 150
    HSK-E 107
    HSK-F 15
    JIS-BT 35
    SCHUNK CAPTO 16
    SK 43
    Projecting length L1 [mm]
    < 50 147
    50 .. 100 303
    100 .. 150 22
    150 .. 200 37
    Clamping diameter D1
    0.5 mm 3
    1 1/4" 2
    1 mm 16
    1" 2
    1.5 mm 12
    1/2" 11
    1/4" 8
    1/8" 22
    10 mm 37
    11 mm 1
    12 mm 47
    14 mm 16
    16 mm 21
    18 mm 14
    2 mm 17
    2.5 mm 5
    20 mm 27
    25 mm 17
    3 mm 35
    3.5 mm 3
    3/16" 5
    3/4" 10
    3/8" 5
    32 mm 15
    4 mm 34
    4.5 mm 3
    5 mm 24
    5/8" 1
    6 mm 54
    7 mm 3
    8 mm 38
    9 mm 1
    Interface size
    100 8
    11 7
    16 12
    20 26
    21 6
    25 58
    28 4
    30 41
    32 69
    40 111
    50 88
    63 63
    C4 16
    Weight [kg]
    0.05 19
    0.03 7
    0.13 19
    0.12 13
    0.15 9
    0.16 1
    0.19 1
    0.25 54
    0.23 39
    0.28 20
    0.27 11
    0.2 1
    0.22 1
    0.24 1
    0.3 32
    0.35 13
    0.41 24
    0.45 14
    0.4 4
    0.47 1
    0.49 1
    0.5 4
    0.55 1
    0.65 13
    0.6 2
    0.62 1
    0.75 10
    0.7 8
    0.78 2
    0.77 1
    0.79 1
    0.8 4
    0.85 3
    0.81 1
    0.83 1
    0.835 1
    0.88 1
    0.9 9
    0.95 2
    1.0 11
    1.05 11
    1.07 2
    1.08 1
    1.09 1
    1.1 7
    1.15 2
    1.12 1
    1.2 8
    1.25 3
    1.22 1
    1.27 1
    1.3 2
    1.38 1
    1.4 5
    1.5 5
    1.54 2
    1.59 2
    1.52 1
    1.6 3
    1.7 3
    1.8 3
    1.9 2
    2.0 4
    2.1 5
    2.2 1
    2.4 2
    2.5 2
    2.6 2
    2.63 1
    2.9 1
    3.0 1
    3.1 1
    3.27 2
    3.3 4
    3.31 2
    3.4 4
    3.49 3
    3.58 1
    3.6 5
    3.7 1
    3.79 1
    3.84 2
    3.8 1
    3.86 1
    3.99 3
    4.09 1
    4.13 2
    4.1 1
    4.19 1
    4.2 4
    4.3 2
    4.39 1
    4.4 1
    4.42 1
    4.7 1
    5.1 1
    L6 [mm]
    25 .. 50 120
    50 .. 100 95
    100 .. 150 16
    150 .. 200 4
    Technology
    Polygonal Toolholders 509
    ER clamping size
    ER 11 7
    ER 16 12
    ER 20 19
    ER 25 23
    ER 32 23
    D5 [mm]
    20 .. 25 5
    25 .. 50 4
    50 .. 100 6
    Category
    Tools 509
    Toolholder quickfinder 509
    Tool clamping technology 509
    Toolholders 509
    TRIBOS Polygonal Toolholders 509
    TRIBOS-Mini 158
    TRIBOS-S 129
    TRIBOS-RM 119
    TRIBOS-R 103
    Toolholder interface
    CAT 40 21
    CAT 50 23
    ER 11 7
    ER 16 12
    ER 20 19
    ER 25 23
    ER 32 23
    HJND 21 6
    HJND 28 4
    HJND 50 5
    HSK-A 100 8
    HSK-A 25 13
    HSK-A 32 20
    HSK-A 40 22
    HSK-A 50 21
    HSK-A 63 48
    HSK-E 20 7
    HSK-E 25 22
    HSK-E 32 26
    HSK-E 40 29
    HSK-E 50 23
    HSK-F 63 15
    JIS-BT 30 26
    JIS-BT 40 19
    JIS-BT 50 8
    SCHUNK CAPTO C4 16
    SK 30 15
    SK 40 20
    SK 50 8
    509 results
    TRIBOS-R

    TRIBOS-R

    With its unique polygonal honeycomp structure and increased outer diameter, TRIBOS-R offers an optimum ratio between radial rigidity and damping, and provides the best dynamic run-out properties.
    Show series
    103 Versions
    TRIBOS-S

    TRIBOS-S

    Extremely slim design! Accurate in the tightest machining conditions. If workpiece areas are hard to reach and conventional clamping systems have reached their limits, TRIBOS-S polygonal toolholders are the solution, due to their extremely slim design.
    The highest permanent run-out and repeat accuracy of <0.003 mm ensures a more even cutting action, thereby improving the tool service life by four times over.
    Show series
    129 Versions
    TRIBOS-RM

    TRIBOS-RM

    TRIBOS-RM is suitable for powerful high-speed machining in micro-machining up to over 85,000 RPM. The excellent run-out accuracy of ≤ 0.003 mm as well as a stability gained from the anchor structure form the basis of the extremely compact toolholder mountings, and in so doing ensures precise and process-reliable machining. The different sizes are perfectly suited to use in small, highly dynamic machining centers.
    Show series
    119 Versions
    TRIBOS-Mini

    TRIBOS-Mini

    TRIBOS-Mini is setting standards in micro-cutting. This polygonal clamping system is used in highly delicate machining operations for housings, molds, electrodes, and engravings in medical technology and electrotechnology, as well as in the watch and clock making industry, or in the precision die construction industry. TRIBOS-Mini can be used to clamp extremely small shanks, which means the time-consuming and cost-intensive manufacturing of special tools is no longer needed.
    Show series
    158 Versions
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