TPT January 2012

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20 January 2012 ›
Industry News
T&H LEMONT has recently installed a
new, dual capacity, quick change tube mill
system. This mill will produce standard
mechanical rounds as well as hollow
structural shapes.
The dual capacity tube mill system was
developed by T&H Lemont in conjunction
with a long time, repeat customer. The
customer approached T&H Lemont with
the need to increase production of a wide
range of structural products in a limited
production area. The dual capacity mill
allows for a greater range of production
sizes in a minimal amount of floor space.
In effect, the dual capacity mill gives
a pipe and tube producer the ability
to produce a range of pipe and tubing
normally produced from two different sized
mills. With a dual capacity mill, the entire
entry and exit equipment is designed to
be universal, as are the mill bases and
drive systems. The “dual capacity” of a
mill is achieved by two different size sets
of quick change subplates designed to
mount on a single base system and utilise
a universal drive system.
One set of subplate mounted driven
stands (T&H Model WU35M-12) with 3.5"
shafts was designed for producing tubing
from 1.25" to 5" with wall thickness from
0.095" to 0.25".
The second set of subplates with 6"
shafts (T&H Model WU60M-12) was
designed to produce tubing from 2.5" to 8"
diameter with wall thickness from 0.125"
to 0.5". The distance between the stands
was optimised for the products produced
on each set of subplates. Each set of
subplates included three driven squaring
clusters to form the shapes. Production
was increased and change-over times
minimised by the T&H AutoSet automatic
stand adjusting system. This motorised,
programmable system allows the operator
to make “push-button” roll stand gauge
changes.
Additionally, this mill was designed to
utilise an overhead crane system to assist
in the change out of the subplates. The
subplates are held to the base by a special
hydraulic clamping system. This allows
the subplates to be connected rigidly
and precisely to the mill base and, when
necessary, disconnected from the base
quickly and efficiently.
T&H Lemont – USA
Fax: +1 708 482 1801
Email:
Website:
T&H Lemont delivers “dual capacity” high
frequency quick-change welded tube mill