Page 1
F. W. C<
x ittsiv# Eeprea«nt«tiv»a
1903 SOUTH AVE.
% 29846 SYRACUSE
BY
LEMPCO
7,
DU-ALL
UNIVERSAL
GRINDER
N.Y.
★ New 360° COMPOUND
★ New HEAVY DUTY SPINDLE
★ NeW V-WAY TOOL BAR FIXTURE
★ New FLEXIBILITY
★ NeW ACCURACY
★ New SPEED
Page 2
u- . ,
WORK SPINDLE SPEEDS
QUICK-CHANGE LEVERS
SPINDLE DRIVE MOTOR
REVERSIBLE SWITCH
HOLLOW SPINDLE
FOR DRAW-BAR
GRINDER HEAD
HEAVY DUTY
SPINDLE
REMOVABLE
GRINDER HEAD “
SWITCH
HEAVY DUTY
r 2 H. P. MOTOR
STATICALLY AND
DYNAMICALLY
BALANCED PULLEYS
f LOCK NUT
TAILSTOCK SPINDLE
_ TAILSTOCK SPINDLE
CRANK
COOLANT PAN
~ INTEGRAL WITH BED
TAILSTOCK
POSITIONING HANDWHEEL
COMPOUND HAND _
PAGE TWO
DETAILED
FEED CRANK
CROSS-SLIDE HAND
FEED CRANK
REVERSIBLE WATER _
PUMP HANDWHEEL
QUICK-ACTION FEED _
CHANGE SHIFT LEVER
SPECIFICATIONS ON REVERSE SIDE
_
FEED TRIP _
LEVER
_ COMPOUND DIAL
_ POWER FEED
NEUTRAL PIN
CALIBRATED 360°
_ FEED SELECTION
LEVER
INFEED TRAVEL
LIMIT TRIP BAR
INFEED
HANDWHEEL
l
Page 3
THE NEW MODEL
<
7tCo4t ‘
I
nterchangeable
HGX
GRINDING
T
urning
IS ONE OF THE
t/enaatiCc
AND TURNING
M A CHINES MADE
£
Simply loosen four bolts, slide out Grinder Spindle
Head and replace with Tool Holder unit and you are
ready to turn, face, or bore. Tool bar equipped
swivel head to position tool bit for turning, boring,
or facing.
T
aper
90° E
Compound is graduated full 3B0° so slide may be
positioned accurately for finish grinding or rough
turning.
53 I
I
nch
This unusually large swing enables the HGX to do
an exceptionally large number of different pro
duction and tool-room jobs. It actually performs
work that usually requires two different expensive
machines.
nternal
With standard equipment grinds holes with inside
diameters from 2" to 29" and to 8" deep. Rough
turns jobs with I.D. from 2" to 24" and to 10" deep.
and
G
G
rinds and
ither
S
wing
G
rinds and
rinding
T
urns
Side
of
C
T
H
eads
enter
urns
with
E
xternal
F
ace
PAGE THREE
G
rinds and
Simply snap a switch to reverse work spindle rota
tion for
work to 18" dia. X 8", turns work to 22" dia. X 12".
Automatic cross feeds — in
accurate work. Manual cross-feed has micrometer
dial calibrated to .001". Hollow work spindle with
draw-bar provides quick means of mounting chucks
or fixtures to the face plate.
external grinding
G
rinds and
or
T
urns
turning. External grinds
T
urns
both directions
assure
Page 4
A
utomatic
ENABLE EVEN THE INEXPERIENCED
TO PRODUCE
A
ccurate
AND
D
evices
S
killful
K
Trips and feeds insure fast, accurate, fool-proof opera
tion
—
even
by
apprentices,
ators. Feed screw, graduated to thousandths, is set
quickly and easily. All automatic control levers
grouped within easy reach of operator so physical
effort is held to a minimum.
POSITIVE,
Reversible pump is driven by "V" belt from workhead
motor, assuring sufficient coolant for grinding or turn
ing operations. Coolant reservoir is part of bed so that
weight of coolant adds considerably to stability.
IMPELLER
COOLANT
women, or unskilled oper
TYPE
SYSTEM
Compound mounted on cross-slide in dovetailed ways
that are hand-scraped for perfect alignment. Com
pound is graduated full 360° for fast, accurate set-ups
PRECISION BEARINGS IN SPINDLE
A grinding spindle is no better than its bearings! That's
why only matched, pre-loaded pairs of dynamically
balanced
Patented oil seals protect bearings against chips and
keep them adequately lubricated. Spindle is made of
fine quality hardened alloy steel.
QUICK-CHANGE GEARS CONTROL
The HGX is designed for fast change-over from one
type of work to another. 3 quick-change cross-feeds,
and 3 quick-change table feeds. Grinding spindle
head and tool bar unit are also quickly and
easily interchangeable.
precision ball bearings are used
TABLE AND CROSS-FEEDS
in each end.
MEMBERS
BEDFORD,
NATIONAL
MACHINE
OHIO,
TOOL
U ★ S ★ A
BUILDERS
ASSOCIATION
PAGE FOUR
Page 5
CONSTRUCTION DETAILS
or THE
LEMPCO MODEL HGX DU-ALL UNIVERSAL GRINDER
MAIN SPINDLE
at work end. Ground over entire length; line bored. Work end
ground with
ments. Spindle rotates in clockwise and counter-clockwise
directions.
MAIN BEARINGS — Precision type, preloaded
bearings.
OIL SEALS — Main bearings protected against chips
and grindings by high grade patented oil seals which keep
the lubricant in.
SPINDLE HOUSING — Finest cast iron of heavy
cross-section, designed to dampen any possible vibration.
SPINDLE DRIVE — V belt from motor to gear box;
thence via train of gears to spindle. Four spindle speeds —
all “
pick off. Gears operate in bath
SPINDLE DRIVE MOTOR — H/2 H. P., repulsion-
start-induction type in 1 phase; squirrel cage induction type
in 2 or
MOTOR SWITCH — Work spindle motor controlled by
a high grade, drum type reversing switch of standard make.
FACE PLATE
face. Holes covering an 18" diameter provide for quick
mounting of jobs.
CARRIAGE
and hand scraped
tion with feed screw fastened to hand wheel at right hand
end of machine. Carriage contains all feed gearing, table
and cross-slides, grinding and turning turret and tailstock.
TABLE
and hand scraped to carriage and cross-slide ways. Can be
fed manually or automatically in
COMPOUND SLIDE
Travel of 12".
MANUAL TABLE
table slide provided for manual feed. Feed screw is mounted
with micrometer dial calibrated to .001".
AUTOMATIC
change feeds of .005", .010" and .016" per work revolution.
Automatic feeds operate in both right and left directions.
AUTOMATIC FEED REVERSE
mechanism includes an
ically reversing the feed between
any set points.
AUTOMATIC FEED TRIP _
verse lever can be further adjusted, instantaneously, to
automatically disengage the table feed at any desired point,
in either right or left direction.
taper
quick change" via levers. No belts to shift or gears to
3
phase. First grade; standard make. Reversible.
—
SLIDE — Heavily constructed of fine cast iron
— Hardened alloy steel, 3
for centers or turning or grinding attach
of
lubricant.
— Accurately
Cast iron of fine quality. Bottom machined
to
ways on bed. Adjusted to working posi
FEED — Hand
TABLE
automatic
machined
either
direction.
— 180°
swing
in
wheel at
FEEDS
_
feed reverse trip, automat
right
-
and left directions at
Automatic feed re
” diameter
and ground on
both directions.
Three quick
The ieed apron
right of
ball
PEED CHANGE
or downward on the side of the carriage affords a quick
change between coarse and fine feed.
CROSS-SLIDE — Finest cast iron of heavy construction.
Hand scraped to table ways. Top surface hand scraped to
provide perfect contact with work turret.
MANUAL CROSS-PEED — Cross-slide can be fed
manually via crank
with micrometer dial calibrated to .001".
AUTOMATIC CROSS-PEED —
cross feeds, operating in both forward and backward direc
tions; .005", .010" and
GRINDING SPINDLE — Precision type; rotating in
four super-precision type ball
preloaded pairs at both ends of grinder quill. Spindle
assembly is designed for heavy duty with quill 4J/2
diameter.
GRINDER MOTOR
at 2 H. P. provides a smooth flow of power for the grinding
spindle. Although very powerful, the motor is small and com
pact. It is mounted in an adjustable bracket on the turret
above grinding spindle.
GRINDING SPINDLE DRIVE - The drive from
the
motor
to
statically and dynamically balanced.
TOOL HOLDER
eter with universal tool clamp, permitting adjustment of tool
to any desired angle for facing or turning inside or outside
diameters.
TAILSTOCK — Tailstock has a conventional screw-fed
propelling and repelling, non-rotating spindle and is equipped
with a No. 3 Morse taper center. It is mounted on a slide
which, in turn, is mounted on the carriage, allowing com
pound adjustment. When drawn to the extreme right position,
tailstock adjustment affords a maximum distance of 44"
between centers.
COOLANT SYSTEM
rally with the
driven from work spindle motor via V belt. Coolant lines then
run to right end of
ing. Pipe and nozzle can be
grinder spindle. Coolant nozzle is attached to a section of
flexible
desired point on the work or wheel.
BED — Bed is of steel of heavy cross section. Machined
and hand scraped to ways of carriage. Cast legs, two
of which are adjustable, simplify levelling machine on
installation.
the grinding spindle is by a flat belt. Pulleys are
bed.
metal
tubing which permits
—
Simple movement of a lever upward
at
front of apron. Feed screw
.016"
per
work revolution.
bearings,
—
Specially designed motor rated
BAR —
Pump is located under head stock and is
machine
— Coolant pan is built integ
and to carriage via flexible tub
clipped
mounted in matched,
Hardened
to
either the
directing
is
mounted
Three quick-change
steel, 1%" diam
tailstock
the flow to any
” in
or
PAGE FIVE
SEE ONE
WORK
—
WRITE
FOR NEAREST LOCATION
Page 6
SPECIFICATIONS
LEMPCO MODEL HGX GRINDER
LENGTH, over all
LENGTH OF
WIDTH, over all (Cross feed
WIDTH (Cross
HEIGHT, over all (To
I
I
I
I
1
HEIGHT to top of carriage
HEIGHT to top of bed
WEIGHT (Shipping)
MAXIMUM DISTANCE BETWEEN WORK CENTERS
The above specifications for carriage travel and distance
between working centers can be increased with beds
of extra length which
WORK SPINDLE SPEEDS (4 quick selective)
TABLE FEEDS (3 quick-change)
Table
Automatic in both right and left directions.
CROSS FEEDS (3 quick-change)
Cross
Automatic in both
FEED CHANGE
FLOOR
SWING, over ways (Diameter)
GRINDING RANGE (Maximum inside diameter)
GRINDING RANGE (Maximum outside diameter)
GRINDING
TURNING RANGE (Maximum
TURNING RANGE (Maximum
TURNING RANGE (Maximum depth of straight hole)
MINIMUM GRINDING or TURNING
FACE PLATE DIAMETER
TABLE SLIDE TRAVEL
CROSS SLIDE TRAVEL
CARRIAGE TRAVEL
BED (Standard length)
crank to rear guard)
feed crank to rear of
top of
feeds are specified per work revolution.
feeds are
SPACE required for operation
RANGE (Maximum depth of straight hole)
standard equipment (Less with special equipment)
specified per work revolution.
grinder
can be furnished at extra cost.
forward and backward directions.
mechanism)
motor)
Quick
inside diameter)
outside diameter)
RANGE with
20-40-60-120 RPM
.005", .010" and .016"
.005", .010" and .016"
action
6' 41/2"
5'
IIV2"
461/2"
411/2"
57"
311/2"
18"
3200 lbs.
44"
via
lever
6V2 X 8 ft.
53"
29"
18"
12"
48"
22"
12"
18"
12"
12"
19"
2"
WRITE FOR PRICE AND DELIVERY DATE
!
PAGE SIX
COPYRIGHT 194] LEMPCO PRODUCTS. INC
LEMP
BEDFORD,
OHIO • U ★ S * A
CD
PRINTED IN
U.
S. A.
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