DEAD LENGTH COLLETS

Schlenker dead length collets are designed and manufactured to offer maximum precision and reliability.
By using them, you improve the processing quality and precision of your machines considerably.

USE
OPTIONS

USE OF DEAD LENGTH COLLETS

Dead length collets are used in the main and sub spindle. The collets can be installed in various types of machines, such as turning machines, sliding headstock automatic lathes, multi-spindle machines, conventional lathes, cam-controlled lathes and in special purpose machine constructions.
The collet is clamped via the pressure sleeve, which presses the collet in axial direction against the union nut.

d Shaft ØD
A Head ØD
B Nose ØD
l Nose length
L Total length
K Taper angle
F Shape
Article ø d
[mm]
ø A
[mm]
ø B
[mm]
I
[mm]
L
[mm]
K
[degree]
F
min. – max. [mm]
E101
TF8
F8-577
8 12 8 4,5 42 16 0,5 – 5,0 1,0 – 3,5 1,0 – 4,5
E109
TF10
F10
10 16 10 5,5 47,5 20 0,5 – 7,0 1,0 – 5,0 1,0 – 6,5
E112 11 19 12 6 41 22 0,5 – 7,0 1,0 – 5,0 1,0 – 6,5
E116
F13
13 19 13 6 64 16 0,5 – 9,5 2,0 – 7,0 2,0 – 8,5
E118 14 19,5 15 6 46 15 0,5 – 10,0 2,0 – 7,0 2,0 – 9,0
E120
TF15
F15
15 21 15 6 64 16 0,5 – 12,0 2,0 – 8,5 2,0 – 10,5
E1212
TF16
F16
16 21 16 6 64 16 0,5 – 12,0 2,0 – 8,5 2,0 – 10,5
SYF16
M14x0,75
16 21 16 8 66 16 0,5 – 12,0 2,0 – 8,5 2,0 – 10,5
E127
TF18
18 25 18 6 67 16 0,5 – 13,0 2,0 – 9,5 2,0 – 11,5
E136
F20-201
20 26 19 5 54 15 0,5 – 16,5 2,0 – 12,0 2,0 – 14,5
E138
TF20
F20-87
20 28 21 7 67 16 0,5 – 16,0 2,0 – 11,5 2,0 – 14,0
E140
TF22
F22
22 30 21 6 55 15 0,5 – 16,5 2,0 – 12,0 2,0 – 14,5
TF24 24 28 22 7 62 15 0,5 – 18,5 2,0 – 13,0 2,0 – 16,0
E144 25 34 25 6 65 15 0,5 – 20,0 2,0 – 14,5 2,0 – 17,0
E145
TF25
F25
25 35 27 10 77 16 0,5 – 20,0 2,0 – 14,5 2,0 – 17,5
E147
F27-22
27 38 30 8 72,7 15 0,5 – 23,0 2,0 – 16,0 2,0 – 20,0
E148
F28
28 38 28 7 70 15 0,5 – 23,0 2,0 – 16,0 2,0 – 20,0
BS20 28 35 27 10 77 16 0,5 – 23,0 2,0 – 16,0 2,0 – 20,0
E157
TF30
F30
30 42 34 10 80 16 0,5 – 25,0 2,0 – 18,0 2,0 – 22,0
EF30
E1446
30 38 32 6 65 15 0,5 – 26,0 2,0 – 18,5 2,0 – 22,5
E161
F32
32 45 34 8 75 15 1,0 – 25,5 2,0 – 18,0 2,0 – 22,5
0166 32 40 34 6 65 15 1,0 – 28,0 2,0 – 20,0 2,0 – 24,5
E162 35 43 34 7 70 15 1,0 – 29,5 2,0 – 21,0 2,0 – 25,5
E163
F35
35 48 38 8 80 15 1,0 – 30,5 2,0 – 21,5 2,0 – 25,5
EF37
TF37
E1536
37 47 40 10 92 16 1,0 – 32,0 2,0 – 22,5 2,0 – 27,0
E164
F38
38 49 38 9,5 108 15 1,0 – 32,0 2,0 – 22,5 2,0 – 28,0
EF40 40 47 40 10 92 16 1,0 – 36,0 2,0 – 25,5 2,0 – 31,5
E171
F42
42 55 42 9 94 15 1,0 – 37,0 4,0 – 26,5 4,0 – 32,0
TF43 43 53 46 10 92 16 1,0 – 39,0 4,0 – 27,5 4,0 – 33,5
TF44 44 52 44 10 92 16 1,0 – 38,0 4,0 – 27,0 4,0 – 33,0
E173
F48
48 60 50 9 94 15 1,0 – 42,0 4,0 – 30,0 4,0 – 36,5
TF48 48 60 50 9 94 15 1,0 – 42,0 4,0 – 30,0 4,0 – 36,5
BS38 48 54 44 10 100 15 1,0 – 40,0 4,0 – 28,0 4,0 – 34,5
E177
F58
58 70 60 9 94 15 3,0 – 52,0 4,0 – 37,0 4,0 – 45,0
E185
F66
66 84 73 9 110 15 3,0 – 60,0 5,0 – 42,5 5,0 – 52,0
E185 – Kurz
F66
85 73 9 40 15 61,0 – 65,0
E190
F88
88 106 94 10 115 15 60,0 – 80,0 20,0 – 56,0 20,0 – 69,0
E193
F90
90 107 92 12,5 130 15 a. A. a. A. a. A.

DEAD LENGTH COLLETS OPTIONS

We offer a wide range of options for our dead length collets. Whether you want to simplify your work, improve your production quality or satisfy a customer specific production requirement. Test our dead length collets now, you will be convinced.

CLAMPING SURFACE DESIGNS
Shapes
Slot designs
Wear reduction
Positioning
Additional versions
Inserts

DEAD LENGTH COLLETS CLAMPING SURFACE DESIGNS

All options

SMOOTH

  • Mainly used on the sub spindle
  • Collets up to Ø5.9 mm smooth, collet type E177 and larger
    up to Ø8.9 mm smooth
Details

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GROOVED – STANDARD

  • Standard collet
  • Mainly used on the main spindle
  • Collets from Ø6.0 mm grooved, collet type E177 and larger from Ø9.0 mm grooved
Details

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AXIAL & RADIAL GROOVES

  • Higher clamping force compared to the grooved standard collet due to the additional axial grooves
Details

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SUPERGRIP

  • Highest clamping force at the same clamping pressure of the machine due to very closely spaced axial grooves
Details

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CARBIDE COATING

  • Carbide coating possible for all shapes
  • Roughened surface
  • Higher clamping force
  • Repeated / afterward coating possible
Details

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EXTENDED CLAMPING LENGTH

  • Can be used for long workpieces with multiple grooves
  • Higher wrap around at the workpiece perimeter, therefore more force to clamp
  • More stable clamping for long workpieces
Details

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SHORTENED CLAMPING LENGTH

  • Application for workpieces whose geometry behind the clamping diameter shouldn’t be damaged
  • Used for short workpieces so the ejector can be lead closer to the clamping diameter
Details

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DEAD LENGTH COLLETS SHAPES

All options

SMALL BORE SIZES

  • Produceable from Ø0.2 – 0.99 mm
Details

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SQUARE

  • Square collets are supplied from SW8 with grooves as standard
  • Collet type E177 and larger are available from SW10 with grooves as standard
Details

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HEXAGON

  • Hexagon collets are supplied from SW8 with grooves as standard
  • Collet type E177 and larger are available from SW10 with grooves as standard
Details

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SPECIAL PROFILES

  • Various profiles can be realized by ram EDM or wire EDM
  • Profiles can be adapted individually to the workpiece
Details

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SPECIAL CONTOURS

  • Complex contours can be realized by hard milling, hard turning and grinding
  • Already possible with smallest diameters from 0.2 mm
Details

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ECCENTRIC

  • Eccentric bore can be eroded individually according to application
  • Through hole or offset hole is possible
Details

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STEP BORES

  • Step bores are suitable for simultaneous clamping of several diameters of a workpiece
  • Very high precision as both step bores are ground in one step
Details

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INNER CONICAL

  • For gripping conical workpieces
  • The taper angle of the collet is precisely adapted to the workpiece
Details

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DEAD LENGTH COLLETS SLOT DESIGNS

All options

S-SLOT

  • High and constant clamping force
  • Clamping with virtually no clamping marks
  • Alternatively usable for profile material (corner clamping)
  • Prevents the entry of machining chips, as the collet closes almost completely
  • Easy to clean after use
Details

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L-SLOT

  • High and constant clamping force
  • Clamping with virtually no clamping marks
  • Alternatively usable for profile material (corner clamping)
  • Prevents the entry of machining chips, as the collet closes almost completely
  • Easy to clean after use
  • Ideal for clamping short clamping surfaces
Details

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W-SLOT

  • High and constant clamping force
  • Clamping with virtually no clamping marks
  • Alternatively usable for profile material (corner clamping)
  • Prevents the entry of machining chips, as the collet closes almost completely
  • Easy to clean after use
Details

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Z-SLOT

  • High and constant clamping force
  • Clamping with virtually no clamping marks
  • Alternatively usable for profile material (corner clamping)
  • Prevents the entry of machining chips, as the collet closes almost completely
  • Easy to clean after use
Details

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THIN SLOTTED

  • Clamping with virtually no clamping marks
  • Prevents the entry of machining chips, as the collet closes almost completely
  • Recommended for small bore sizes
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DEAD LENGTH COLLETS WEAR REDUCTION

All options

CARBIDE INSERT

  • High wear resistance
  • Prevents pressure marks on the workpiece
  • Higher service life
Details

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BL COATING

  • Smooth surface
  • Fewer clamping marks on the material
  • Especially suitable for material with poor gliding properties
  • Prevents the welding of the material in the collet
Details

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PREMIUM BLUE COATING

  • Economical alternative to collets with carbide insert
  • High wear resistance
  • Can also be used for special shapes
  • Are completely coated on the functional surfaces like cone and shaft therefore more durable
Details

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DEAD LENGTH COLLETS POSITIONING

All options

SLOT IN CONE

  • Slot is placed in the cone of the collet
  • Used to position the collet in the machine for special as well as square and hexagon shapes
Details

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SLOT IN SHAFT

  • Slot is placed in the shaft of the collet
  • Used to position the collet in the machine for special as well as square and hexagon shapes
Details

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SLOT IN FRONT-SURFACE

  • Slot is placed in the front-surface of the collet
  • Used to position the collet in the machine for special as well as square and hexagon shapes
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ALIGNMENT SURFACE

  • The alignment surface on the collet is used to position complex profiles and special contours
  • Is only producible in combination with a slot
Details

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DEAD LENGTH COLLETS ADDITIONAL VERSIONS

All options

INTERNAL STOP

  • Suitable for manual loading of the machine at a certain length
  • Prevents the displacement of the workpiece at high axial forces
  • Used to stabilize the workpiece when the clamping length is too short
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INSERT AID

  • Is inserted in main spindle collets
  • Is mainly used for small diameters
  • Minimizes vibrations as the bar material is supported along its total length
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BUSH

  • Is inserted in main spindle collets
  • An alternative to the insert aid
  • Is mainly used for medium to large diameters
  • Absorbs the vibrations of the bar material, supports it at the back and keeps it axially aligned
Details

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SUPPORTING BUSH

  • Is inserted in sub spindle collets
  • Minimizes vibrations as the bar material is supported along its total length and keeps it axially aligned
  • Ejection is made possible in a process-safe way