Page 1
Catalog
1468-1
Page 2
NORTON
TYPE
ECONOMIZE —
MODERNIZE
WITH A N,
NORTON
i
Page 3
gives you • .
• •
Low
Costs
Little
Skill
Automatic
Regularity
W(f/c outy>u£-u*dfcou£
You grind concentric cylindrical parts at exceptionally low cost with this ma
chine because you grind with unvarying output —
and you grind at the highest rate at which the job can be done.
The consistently fast automatic operation of the Type CTU Full Automatic
completely eliminates the requirement of experience and skill on the
operator. The quality and quantity of work produced that ordinarily depend
on operator skill and dexterity are obtained in
and automatically, and may mean you require fewer machines.
You set the automatic grinding cycle to function in the shortest time feasible
for the stock removal and finish requirements involved and this cycle rate is
repeated for each piece.
you grind automatically —
the Full Automatic mechanically
effioft
part of the
Automatic
Wheel Truing
Enduring
Service
You can set the automatic wheel truing device for the desired diamond feed
which is repeated at each truing. By means of a special arrangement, at extra
cost, the truing device is made to function automatically at regular selected
intervals. Automatic compensation for the amount of wheel reduction is also
available as an extra. With these arrangements, the machine becomes com
pletely automatic, requiring no
The Type CTU Full Automatic not only gives you effortless high production
with resulting low costs — it gives you long service life in addition. Extra
strength engineered into machine components gives you continued precision
under heavy loads, minimizes maintenance requirements, and prolongs the
exceptional investment value you receive from the machine.
High production single-purpose machines require special
&•
engineering to adapt them to a given job — particularly
the work feeding and driving mechanisms. If you have
cylindrical parts requiring a ground external surface; it
these parts can be held on centers, and if you want them in
quantity ar low production cost — send us detailed blue
prints. We will inform you promptly what the Type CTL
Full Automatic can do for your job.
attention
except to keep the loader filled.
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'
:
;
X
X
N.
!
:
■
'
Chute Type
Work Loading
!
Device
N3989-A
N3444-A
S.
Chain Type
Work
Loading
Device
X
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Automatic Loaders
aid output • •
The type of work loading device supplied with the Type CTU
Full Automatic depends on the physical character of the work
to be ground.
For wrist pins, bushings, valve guides and similar parts where
both ends of the work are alike, a Chute Type loader is furnished.
With the Chute Type, hydraulically operated fingers at the base
of the chute pick off each piece
the work centers. Simultaneously the previously ground piece is
removed and dropped down the return chute and into the finished
work receptacle.
Irregular non-symetrical parts however, might tend to wedge and
pile up in a Chute Type loader
available for this type of work. Here the piece is
clips on the chain into position between the work centers. After
the grinding is performed on one piece the centers are withdrawn
and the chain brings
are carried along in the chain to an automatic unloading device
which removes the pieces from the spring clips and they drop into
the finished work receptacle.
the next piece into position. Finished pieces
• •
as it advances and places it between
so an Endless Chain type of loader is
carried in spring
'r
a
Both types of loaders promote maximum output by the automatic
regularity with which they load and unload, the timing being
interlocked with the automatic grinding cycle so that the whole
operation works smoothly and efficiently.
#
The number of cycles per minute — which is also the number of
pieces ground — is
duction rate for any kind of
to be removed, the limits of accuracy, the finish required, the
material, and the grinding wheel. The flexible cycle gives the
Type CTU Full Automatic built-in
of skilled manual operation is approached.
controlled by a simple adjustment. The pro
work depends on the amount of stock
skill by
which the craftsmanship
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/!
/•
Selected Headstocks
The type of headstock supplied is determined by
the nature of the work to be ground. The head-
stock furnished may be of the dead center type
(with corresponding footstock with automatic
closing feature); it may be a live center type with
without footstock, or two synchronized headstocks
with live centers may be supplied.
or
Sturdy Tables
Sturdy sliding and swivel tables assist the grinding
action. The swivel table provides for grinding
taper work and permits correction of taper in
grinding work straight. The sliding table may be
positioned by the hand table drive mechanism
for setup or adjustment.
Easy-Fast Wheel Feed Setting
Settings for both the rate and amount of the auto
matic feed are easily made from the front of the
machine. A "click-count”
permits instant correction of the amount of feed
by rotating a knob. The rate of wheel feed also is
changed instantly by the mere rotation of a knob.
indexing mechanism
N6083
The wheel spindle unit is of major'importance to
the enduring precision and fast action you get from
the machine. It is rugged for heavy stock removal
— yet precise for close tolerances and fine finishes.
Over 50% of the spindle body is enclosed in two
long, hard bronze bearings of super-duty size.
This construction gives extreme resistance to de
flection by wheel pressure and to o^her conditions
that reduce efficiency. The spindle, specially
toughened to improve wear qualities, remains on
its fixed center line; no shifting is possible.
The performance of the spindle unit is further in
creased by three important factors: flood Jubrica-
tion which is automatic, filtered and seif-contained
within the wheelslide, minute oil clearances, and
modern precision boring of the spindle bearings.
A
Speedy-Precise
Automatic Grinding Cycle
In the automatic grinding cycle, the grinding wheel
is rapidly brought toward the work — and is
rapidly withdrawn from the work on completion
of
the grind — by
hydraulic cylinder. In this rapid movement, the
large diameter feed screw, the feed screw nut,
and the wheel slide are moved as an integral unit
with no relative motion between these elements —
and no wear.
Automatic grinding feed occurs upon .cushioned
completion of the rapid advance of the grinding
wheel. The grinding feed is accomplished by
automatic rotation of the large diameter feed screw
in its nut by hydraulic means. This rotating feed
screw type of automatic grinding feed., produces
an extremely fine and enduring repetitive accuracy
because of metal-io-mctal contact of feed screw and
nut which are mated and lapped together in manu
facture.
movement of a large piston in a
L
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I®ifi ;
AtHfilif 1% Wheel
..........
Truing Device
Aids Production — reduces wheel cost
This device aids production by eliminating the requirement
of skill and time normally required in truing. It is also
widely flexible in
that it is
adjustable for coarse or fine truing
and provides a minimum increment ofdiamond feed of.
By providing the means for a close, uniform control of the
amount of
abrasive removed from the wheel face, it reduces
0005".
wheel cost per piece ground.
The diamond in the device automatically makes a round trip
at a predetermined speed and feed across the face of the
grinding wheel. The diamond cuts both passes, is auto
matically fed for each pass, and comes to rest ready for the
r
^
i
;
,
N7253
next truing. The diamond, in its travel, is automatically
speeded from rest and reversal points to the edge of the
grinding wheel.
Capacity
Grinding Wheels
Standard
Maximum distance between Wheel and
Work Centers
Minimum distance between Wheel and
Work Centers.
Coolant Tank capacity (U.S. gallons) . .
I
*
i
Coolant Pump capacity (gallons per min.)
Hydraulic Oil Reservoir capacity (U.S. gallons).
Lubricating Oil Reservoir capacity (U.S. gallons) .. 314
Wheel Drive
Work Drive
Hydraulic and Lubricating Pump Drive
Coolant Pump with Integral Motor .
Weight (approx.)
Net
Domestic Shipping Weight (approx.)
Floor Space (approx.)
Actual capacity is largely dependent on the work to be ground. Detail prints of the work must be studied by
our Engineers. On this study is based the decision of the suitability of the machine for the job.
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30 x 3 x 12"
Length of bearing ways
21"
Total bearing area (projected)
Lubrication
...................................
8'A"
75
21
38
MOTORS
Material
Large Bearing (L.H.)
Small Bearing (R.H.)
Lubrication
...................
................
A.C. motor speeds given are for 60 cycle, for 50 cycle A.C. speeds will be 1500 and 1000 r.p.rn.
Standard Electrical equipment meets Machine Tool and J.I.C. Standards.
.........
................
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WHEEL SLIDE
..........
WHEEL SPINDLE
. 15 h.p., 1800 r.p.rn., constant speed A.C.
. 1 h.p., 1200 r.p.rn., constant speed A.C.
. 1 h.p., 1200 r.p.rn.. constant speed A.C.
14 h.p., 1800 r.p.rn., constant speed A.C.
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Automatic Pressure
Heat Treated Alloy Steel
37 Vs"
372 sq. in.
..................314" x 8*6"
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..............
314" x 714"
Automatic Flood
. . 10,600 lbs.
.11,800 lbs.
94" x 10'4"
correct
The descriptions, illustrations and
its machines, those built
Machine meets J.I.C. Hydraulic Standards with Hydraulic Fluid Reservoir inside base. An outside Hydraulic Fluid Reservoir i, available, if desired.
at
later
dates
specifications
in this
may differ from these details to some extent.
booklet
are
at the time of printing. Since the policy of Norton Company i> constantly to improve
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Semiautomatic Cylindrical Grinders
MACHINES FOR
• CYLINDRICAL GRINDING
• SURFACE GRINDING
• CYLINDRICAL AND FLAT LAPPING
• UNIVERSAL TOOL AND CUTTER GRINDING
• UNIVERSAL GRINDING
• SPECIALIZED GRINDING
• CAM AND SHAPE GRINDING
• CRANKPIN AND CRANKSHAFT BEARING
GRINDING
• ROLL GRINDING
• ATTACHMENTS AND EQUIPMENT FOR
SPECIAL WORK
OTHER NORTON PRODUCTS
Abrasives
Non-Slip Floors
MACHINE
Worcester 6—New Bond Street.
Hartford 7—1007 Farmington Avenue.
Cleveland 3—1306 East 55th Street.
Detroit 8—5805 Lincoln Avenue
Chicago 32—4737 So. Christiana Ave.. .Lafayette 3-8700
New York Area—Green and North Streets,
Grinding Wheels
Encapsulating Machines
DIVISION OFFICES
Teterboro, N. J
NORBIDE Products
...............
Refractories
Tel. No. 2-4641
.. .Tel. No. 3-6462
.. Henderson 1-9500
Trinity 5-8991
.............
Bryant 9-6170
for complete line of
Norton Grinding and
Lapping
Machines
Write for Catalog
1843
finakinq better products ...to make your products better
Form 1468-1 P-2M-2-55-G.O.P-
Lapping Machines
Cable Address: NORBEMO, Worcester
Printed in U.S.A.
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