USE OF DRAW-IN COLLETS SW&B
Draw-in collets are used for workpiece clamping as well as in all common grinding machines, dividing heads and manuel turning machines.
Clamping is performed by retracting the draw-in collet into the collet sleeve.
| d | Shaft-Ø |
| A | Head-Ø |
| L | Total length |
| K | Taper angle |
| G | Thread |
| F | Shape |
| Article | ø d [mm] | ø A [mm] | L [mm] | K [degree] | G | F min. – max. [mm] | Step bore | ||
 |  |  | |||||||
| SW12 80-2 E318 | 12 | 16 | 46 | 15 | Ø11,75×1,25 45°/5° | 0,5 – 8,0 | PR | PR | |
| SW12 80-2 E318 | 12 | 16 | 46 | 15 | Ø11,75×1,25 45°/5° | 8,01 – 12,5 | PR | PR | PR |
| SW15 80-3 E321 | 15 | 20,2 | 58,3 | 15 | Ø14,75×1,25 45°/5° | 0,5 – 10,5 | PR | PR | |
| SW15 80-3 E321 | 15 | 20,2 | 58,3 | 15 | Ø14,75×1,25 45°/5° | 10,51 – 16,0 | PR | PR | PR |
| SW20 80-4 E349 | 20 | 26,3 | 73,00 | 15 | Ø19,7×1,666 45°/5° | 0,5 – 14,5 | 2,0 – 10,0 | 2,0 – 12,0 | |
| SW20 80-4 E349 | 20 | 26,3 | 73 | 15 | Ø19,7×1,666 45°/5° | 14,51 – 23,0 | PR | PR | PR |
| SW25 80-5 E364 | 25 | 33,7 | 97,6 | 15 | Ø24,7×1,693 45°/5° | 0,5 – 18,0 | 2,0 – 12,5 | 2,0 – 15,5 | |
| SW25 80-5 E364 | 25 | 33,7 | 97,6 | 15 | Ø24,7×1,693 45°/5° | 18,1 – 29,0 | PR | PR | PR |
| B32 72-65 | 32 | 40 | 106 | 15 | Ø29,7×1,693 45°/5° | 1,0 – 24,0 | 3,0 – 16,5 | 3,0 – 20,5 | |
| B32 72-65 | 32 | 40 | 106 | 15 | Ø29,7×1,693 45°/5° | 24,01 – 32,0 | PR | PR | PR |
| B45 72-199 | 45 | 53 | 115 | 15 | M42x1,5 | 5,0 – 36,0 | 5,0 – 25,5 | 5,0 – 31,0 | |
| B45 72-199 | 45 | 53 | 115 | 15 | M42x1,5 | 36,01 – 45,0 | PR | PR | PR |
DRAW-IN COLLETS SW&B CLAMPING SURFACE DESIGNS
SMOOTH – STANDARD
- Standard draw-in collet
GROOVED
- With additional grooves
AXIAL & RADIAL GROOVES
- Higher clamping force compared to the grooved standard collet due to the additional axial grooves
SUPERGRIP
- Highest clamping force at the same clamping pressure of the machine due to very closely spaced axial grooves
CARBIDE COATING
- Carbide coating possible for all shapes
- Higher coefficient of friction than a standard collet
- Higher clamping force
- Repeated / afterward coating possible
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
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
DRAW-IN COLLET SW&B SHAPES
SQUARE
- Suitable for clamping square material
HEXAGON
- Suitable for clamping hexagon material
SPECIAL PROFILES
- Various profiles can be realized by ram EDM or wire EDM
- Profiles can be adapted individually to the workpiece
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
ECCENTRIC
- Eccentric bore can be eroded individually according to application
- Through hole or offset hole is possible
SPECIAL CONTOURS
- Complex contours can be realized by hard milling, hard turning and grinding
- Already possible with smallest diameters from 0.2 mm
INNER CONICAL
- For gripping conical workpieces
- The taper angle of the collet is precisely adapted to the workpiece
DRAW-IN COLLETS SW&B SLOT DESIGNS
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
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
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
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
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
DRAW-IN COLLETS SW&B WEAR REDUCTION
CARBIDE INSERT
- High wear resistance
- Prevents pressure marks on the workpiece
- Higher service life
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
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
DRAW-IN COLLETS SW&B ADDITIONAL VERSIONS
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
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
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
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
EJECTOR & INNER COOLING
- Mechanical ejection of the workpieces
- If required internal cooling of components can be integrated
- For flushing the clamping surface
- Simple change of the ejector within one collet type possible
UP VERSION
- High precision
UUP VERSION
- Highest precision
SEALED
- Prevents the entry of machining chips
- The whole slot area can be sealed
- Resealing possible
- Not usable with high pressure flushing in the machine
DRAW-IN COLLETS SW&B INSERTS
PEEK / PLASTIC INSERTS
- Prevents pressure marks on the workpiece
- Inserts are replaceable when worn
- Ideal for scratch-sensitive materials, as well as for gentle gripping
ALUMINIUM INSERTS
- Prevents pressure marks on the workpiece
- Inserts are replaceable when worn
- Ideal for scratch-sensitive materials, as well as for gentle gripping
BRASS INSERTS
- Prevents pressure marks on the workpiece
- Inserts are replaceable when worn
- Ideal for scratch-sensitive materials, as well as for gentle gripping
BRONZE INSERTS
- Prevents pressure marks on the workpiece
- Inserts are replaceable when worn
- Ideal for scratch-sensitive materials, as well as for gentle gripping
PERMAGLIS INSERTS
- Prevents pressure marks on the workpiece
- Inserts are replaceable when worn
- Ideal for scratch-sensitive materials, as well as for gentle gripping
INSERTS FOR SELF-TURNING
- Clamping diameter can be reworked by the user himself
- Inserts are replaceable when worn
- Ideal for scratch-sensitive materials, as well as for gentle gripping
