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•
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SHELDON-
Page 2
20x24
surface
automatic
Marposs
Sheldon-Matra
grinder
with
down
electronic
precision
optional
feed
gauge
and
.
•
.j
•
ij
~
Page 3
Features
•
D
High
of
metal
sp
spaced
spindle
achieved
spindle
Because
wear
motor
and
Hydrocentering
precision
the
hydrocentering
to
metal
contact
indle
rotat
es
ports
in
to
its
true
because
which
and
mounted
pulleys
maintains
the
spindle
consequently,
are
Spindle
and
maximum
spindle.
in
either
on a pressurized
the
bearings,
and
of
the
rides
integrally
eliminated
the
concentric running
independent
constant
on
the
no
spindle
with
for
rigidity
During
the
fine
are
rotation
the
radial
or
film
of
oil.
pressuriz
pressure
pressurized
spindle, vibrations
ed
hydraulic
adjustments
tolerance
CROSS
I
provided
axial direction
oil
center.
at
oil
by
of
the
Fed
through
automatically
Maximum
power
all
times.
film,
are
finishes.
SECTION
the
construction
spindle
ther
required. With
e is
from
there
because
four
forces
rigidity
supply
no
gears
equally
bearing
is
to
, be
no
the
the
is
the
the
lts
•
Centralized
All
pushbuttons,
the
front
a
nd
vertical
and
for sens
all feed
switches,
Vertical
0
Vertical
Wheel
D
Self
D
Heavy
0
Table
D
Automatic
controls
of
the
machine. Fine
travel
itive
motions
if
desired.
rapid
controls
dresser
contained
wide
column
fully
supported
lubrication
selectors
are
built
grinding
can
be
traverse
permanently
hydraulic
front
for
of
mounted
in
and
handwheel
feed
into
the
to
size. In
controlled
spindle
mounted
power
maximum
saddle
ways at all times
feeds
adjustments
handwh
head
for
supply for
spindle support
eels
addition
through
operator
on
wheel
table
pushbutton
ease
are
centrally
for
both
for
operator
to
handwheel
head
feeds
grouped
the
cross
convenience
oper
and
at
travel
ation,
selector
•
20 X 40
Sheldon
precision
surface
- M
atra
grinder
.
Page 4
SPECIFICATIONS
TABLE DIMENSIONS & TRAVELS
Working
Table
Ground
Longitudinal
Cross travel (max.)
Height, floor
CENTERLINE OF SPINDLE TO
TABLE TOP
Maximum
Minimum
FEEDS
Maximum
Automa
per table stroke
Rapid
SPINDLE
Spindle
Grinding
Grindi
Grinding
H.
HYDRAULIC PUMP MOTOR
NET WEIGHT
FLOOR SPACE REQUIRED
including
P.
spindle
Surface
clamp
table
(max.)
table
ft/min.
tic
cross feed
cross
speeds
wheel
ng
wheel
wheel hole
oil
ing area
surface
travel
to
table
speed
in/min.
feed
in/min
diameter
width
motor
and
coolant
dia
.
.
tanks
1624
16
" X 24"
12"x35
12
" X 24"
31
½ "
14"
42"
5500 lbs.
108" X
"
80"
2024 2032
20"
X 24"
16"
X 35 " 16" X 43"
16" X 24"
31
½"
18"
42" 42"
21½
.020"
32"
1800 and 3600
12"
2"
3"
5 H.P.
2 H.P.
6200
lbs
. 6500 lbs.
108" X 92"
"
4"
82'
to 1.57"
20"
132"
16
" X 32"
X 32"
39"
18"
X 92"
2040
20" X 40"
16"x51
16
" X 40"
47"
18"
42"
7500
lbs
155"
X 92"
"
•
.
STANDARD EQUIPMENT
High speed vertical travel,
switch,
D.C.
grinding
grinding
wheel head
transformer
current
for
wheel mounts,
wheel flange puller, balancing mandrel,
mounted
SHELDON
and
electromagnetic
MACHINE
built-in
rectifier
2" x 12"
cylindrical
providing
dresser, diamond
pole
changing
24
chucks, three
grinding
wheel,
CD.,
volt
dressing
high pressure grease gun,
holder
with
diamond
pin-type
wrenches, operational manual,
ing diagram,
trols, fused
phase
INC.
• 1
i
·.-
·, .
motors
11 O volt
disconne
. 5
year
13~
4258
' ]
oil
tight
ct switch, and 230 volt, 3
guarantee
North
o-fr
Knox
nib,
coolant
wrench,
parts
manual,
pushbuttons
certificate
~
Avenue • Chicago,
and con-
.
~
system,
set
of
wir-
~
Illinois
•
60641
Bulletin
GM 969
Printed
•
in U.S.A.
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