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Ad Number: 14711
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Year: 1991 | Make: EMCO | Model: FB4
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| Machine Type: | Condition: Excellent | Price: sold
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Description:
Standard EMCO FB4 vertical end mill.
Comes with collet set, key chuck, vise,
positioning blocks. This machine has seen
very
light use.
All models had a head that swivelled through
360-
degrees (with a vernier scale for precise
setting), a No. 2 Morse taper socket and a
quill
under the control of a quick-action, spring-
return
lever working through a rack-and-pinion
drive.
The
quill (together with the bolt head for the
draw
bar) protruded though the top surface of the
head
and, while protected by a flimsy plastic
cover on
the 6-speed models, was left exposed on the
4-
speed version. The head had a fine-feed
drive,
but only at 90-degrees to the table and by
winding
the head up and down the column; hence, with
feeds
along the axis of the quill limited to rapid-
action the machine's capacity to handle very
sensitive angled jobs was restricted to
setting
them up in an angled vice, or similar.
Although
resetting the head's vertical position on the
column took much twirling of the control
handle
it
was (unlike the competing Taiwanese
mill/drills)
guided by a gib block and so stayed in
perfect
aligned throughout its travel. If the head
needed
to be rotated around the vertical axis of the
column the latter could be unclamped from its
housing by two socket-headed screws and,
guided
by
a ring of degree markings, swung to whatever
position was desired. While quill travel on
the
geared-head models was 40 mm, on the belt-
drive
types this was increased to 50 mm. The 4-
speed
head had a throat of 145 mm, the necessarily
deeper 6-speed FB2 version had 163 mm of
clearance
and the belt-drive units - which required an
even
greater spacing between their pulleys - 195
mm. |
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