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Designation
Mandrel Collet
Body material
structural steel
Component material
mild steel
Body surface finish
black oxidised
Component surface finish
case-hardened
D3=For countersunk screw
M03
D4=Taper head screw
M08
D=Diameter min.
13,5
D=Max. diameter
20
F3=Retaining force max. kN
11,1
M=Tightening torque max. Nm
34
R=Application
machined
Clamping type
internal clamping
D1
37,5 H9
D2
29
H
24,9
H1
19
H2
15
H3
14
SW taper head screw
6

Description

Material
Mandrel mild steel.
Taper-head screw low-carbon steel
Version
Mandrel black oxidised.
Taper-head screw case-hardened.
Note
The mandrel collet is ideal for finish machining turned parts. The diameter “D” can be turned or milled to suit the workpiece ID.
Low design - no interfering clamp straps.
Tightened using a hex socket wrench or hydraulics.

* D min. = smallest diameter to which “D” may be turned or milled.
Assembly
Expand the mandrel approx. 0.1 mm over the relaxed diameter. Turn or mill the mandrel to suit the internal diameter of the workpiece. The base flange can be centred in a pocket or using dowel pins.
Drawing reference
1) taper-head screw
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