TOPlus mini / TOPlus premium pull-back
Use and limits of use
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Order h49 7144.907-333
c) the centrifugal forces caused by the weight of the clamp-
ing head
d) where necessary, tailstock forces
Principles for the forces exerted externally
WARNING
Serious injuries caused by failure to comply with
the principles that govern safe machining!
Those principles must be maintained at all times
to assure a safe machining process.
Pay attention to the following principles:
1. Principle
𝑭
𝒓𝒂𝒅
≥ 𝑭
𝒓𝒂𝒅 𝒆𝒓𝒇
AND
2. Principle
𝑭
𝒕
≤ 𝑭
𝒕 𝒎𝒂𝒙
AND
3. Principle
𝑭
𝒄
≤ 𝑭
𝒄 𝒎𝒂𝒙
[Relevant to turning and/or to axial drilling operations.]
AND
4. Principle
𝑭
𝒒
≤ 𝑭
𝒒 𝒎𝒂𝒙
[Relevant to a radial drilling operation directed at the center
and/or for the application of an equivalent load. If radial
forces and the resultant torques are not directed at the cen-
ter, due account of this can be taken by a quasi cutting force
outside the center.]
AND
5. Principle
𝑴
𝒒
≤ 𝑴
𝒒 𝒎𝒂𝒙
[Relevant to a radial drilling operation directed at the center
and/or for the application of an equivalent load. If radial
forces and the resultant torques are not directed at the cen-
ter, due account of this can be taken by a quasi cutting force
outside the center.]
With these principles, the assumption is that the clamping
head chuck is used for a turning operation, or for an axial or
radial drilling operation on the workpiece. There is no funda-
mental reason why the clamping head chuck cannot also be
used for other machining tasks such as bypass milling or
plunge-milling. In such cases, the owner must ensure that
the forces and torques that occur are comparable to the
equivalent permitted values for turning or drilling, to check
the reliability of the application.
