Norton 10"" Hydraulic Surface Grinding Machine Grinder, Surface

NORTON

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MACHINES

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10"

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HYDRAULIC

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SURFACE
GRINDING

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MACHINE

24", 36", 48" and

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60"

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Lengths

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CATALOG 1745-14

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NORTON

10

“ HYDRAULIC SURFACE

In 24", 36", 48" and 60" Lengths

GRINDING MACHINE

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The metal working industry more and more is adopting the ground plane sur
face from an economical standpoint as well as from considerations of appearance and
accuracy. Many machine parts formerly scraped or filed are now surface ground.
Each year the trend in this direction becomes more pronounced.

The demand of manufacturers for better and better machinery has placed a
very definite responsibility on tool builders for more productive and sturdier equip
ment capable of duplicating parts to closer tolerances, faster, belter and at less cost.
For obtaining flat and parallel surfaces, where accuracy and finish are essential, N

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ompany

offers the 10" Surface Grinding Machine. It is a tool of the reciprocating

orton

table type, the work passing back and forth under the grinding wheel which is carried
in a traversable head and the spindle of which is at right angles to the direction of
table travel. It is designed to

meet both the requirements of tool and die shops, and for

economical manufacturing production.

The work table reciprocation is hydraulically accomplished by an improved

type of hydraulic drive. The machine is furnished with both hydraulically operated

automatic power cross feed and hand cross feed.

BASE

The base is a single casting, sturdily ribbed and arranged to rest on three points.

No foundation, other than a good floor, is required. The front portion serves as an
oil reservoir for the hydraulic mechanisms while the rear portion completely encloses
the motor.

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TABLE

The table is provided with one flat and one vce way and travels in correspond

ing ways in the base. These ways are generously proportioned to give firm support

and are lubricated by rollers set in pockets in the base ways. The table top is surface
ground at assembly and checked for flatness with a master gage. Two standard tee
slots for clamping work or magnetic chuck, run the full length of the table.

A tee slot in front carries the table reverse dogs operating the reverse lever and

which are quickly and easily set for the length of stroke desired.

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DRIVE

Power is delivered by a belt directly from the motor pulley over antifriction
bearing idlers with adequate provision for quick, easy take-up to the spindle pulley.
A second belt, also direct from the motor, drives the oil pump for the hydraulic mecha
nisms and the grinding coolant pump. Accessibility and convenience have been given

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careful study and, as a result,

ease of servicing these units is

assured.

HYDRAULIC SYSTEM

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pressure hydraulic system. A gear pump, belted directly to the motor, draw's oil from
the reservoir in the base. This oil passes through a reverse valve to a cylinder attached
to the base beneath the table. In this cylinder is a piston, the rod of which is attached
to one end of the table. Since all hydraulic connections are within the base any seepage
drains back into the reservoir.

Simplicity and rugged serviceability are the keynotes in the design of the low

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The table stop valve in the pressure side of the line is used to stop and start

the table traverse and is operated by a convenient lever on the front of the machine.

10" x 36" Surface Grinder with Automatic Cross Feed and

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Wheel

Guard Type Truinq Device

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N-3882

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N-3880

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10" x 60" Hydraulic Surface Grinding Machine with Power Cross Feed

It is absolutely positive in action, cutting off the oil supply to the cylinder to stop the

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table, discharge taking place through a by-pass,

By an adjustment on the operating

lever the amount the valve opens can be controlled and thus the table speed regulated.

The reverse valve mechanism is a complete, totally enclosed unit attached to

the front of the base. It decelerates the table to a stop and accelerates it in the oppo

site direction at each reversal, smoothly, quietly and without shock.

tstanding characteristic of the N

an ou

of this magnitude from 100 feet per minute to a stop and then accelerate it at full

mass
speed in the opposite direction without perceptible pause requires

and accurately built device. This, the N

orton

orton

10" Surface Grinder. To decelerate a

10" machine, will do not only for

This feature is

a correctly designed

a week or a month, but for years.

WHEEL

HEAD

The wheel head is carried on a massive box-section post, securely bolted to the

base of the machine. It consists of two units, a vertical slide and a cross slide. The

vertical slide
the cross slide in similar ways machined in the vertical slide,

moves on

dovetailed, adjustable, gibbed ways machined in the post and

The cross slide carries

the grinding wheel.

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The grinding wheel spindle is made of heat treated alloy steel and is mounted

in hard bronze boxes tapered on the outside to give a means of adjustment.

Power

and rigidity, essential for fine finish grinding, are assured.

On machines arranged for fast and slow hand cross feed, the fast feed is operated

by means of a hand wheel directly in front of

the

operator’s position while an auxiliary

hand wheel operating through a set of worm gears, gives a very fine cross feed for truing

or shoulder grinding. Adjustable positive stops are

provided to limit cross travel of

wheel as desired.

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WHEEL FEED

Vertical movement of the grinding wheel is accomplished by a large index-
equipped hand wheel operating through a single set of spiral gears and a feed
A positive stop is provided, thus assuring duplication of

wheel

settings to close limits.

screw.

ELECTRICAL EQUIPMENT

A iy

2 H.P. 1200 R.P.M., totally enclosed, fan cooled, ball bearing motor is

supplied. This drives the wheel spindle, and the hydraulic and coolant pumps.

Disconnecting Clutch for Coolant Pump

(Optional Equipment)

N-3884

Standard Drive for

Coolant and Oil Pumps

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AUTOMATIC CROSS FEED

The Automatic Cross Feed is hydraulically operated and will cross feed the

grinding wheel at each table reversal when desired in varying amounts adjustable

up to a 1" stroke.

The

direction of the feed is automatically reversed at any desired point by the

setting of adjustable dogs. This automatic operation allows a freedom of supervision

and gives the operator time to reload another machine or to gage work already ground.
The Automatic Cross Feed also provides a continuous power cross traverse of the
wheel slide for wheel truing.

Defail Showing Automatic

Cross Feed on Hydraulic

Surface Grinder Arranged for Die Grinding

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OPTIONAL EQUIPMENT

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equipment for those operations where it has
economical advantages, is mounted on the
vertical slide. The diamond is carried by
a small slide which extends through an
opening in the top of the wheel guard and

which is adjusted by a graduated hand

wheel.

ersing the grinding wheel horizontally under
the diamond. By moving the grinding

wheel vertically the same amount as the
diamond is fed, considerable time is saved
in resetting for size after truing. Further
more, the wheel head need not be run down
for appreciable distances to true and then
up again to continue grinding.

WHEEL GUARD TYPE TRUING DEVICE

This device, available as additional

Truing is accomplished by trav

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Detail Showing Wheel Guard Type Truing Device

MAGNETIC CHUCKS

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orton

ence as to which is used, but will be glad to submit chuck prices with the quotation

on the machine. Direct current is necessary for the operation of a magnetic chuck and

if not otherwise available an independent J^or ^ K.W. motor generator or an elec
tronic tube type rectifier can be supplied. The following magnetic chucks will fit
these machines.

Machine L

24"

36"

48"

60"

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ength

ompany

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does not manufacture magnetic chucks and has no prefer

aft-Peirce

1024-P

1036-P

1048-P

1060-P

W

alker

1024
1024-BP

1036
1036-BP

1048
1048-BP

1060
1060-BP

Working Surface

10 x 24"
10 x 24"

10V

4 x 24"

10 x 36M>"

10 x 36"

10y

4 x 36"

10 x 48"
10 x 48"
10V

4 x 48"

10 x 60"
10 x 60"
10y

4 x 60"

H

4"

47i6"
4y4"

eight

4"

4"
4y4"

4"
47/l6"

4y4"

4"
4y4"
4y4"

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SPECIAL ARRANGEMENT FOR DIE GRINDING

The N

orton

10" Surface Grinding Machine can be arranged for grinding die

surfaces without removing the guide posts, otherwise known as guide or liner pins.

A special table, wheel slide and wheel guard and a 20" diameter grinding wheel are
provided in this case. This permits grinding between the pins without removing
them, a feature of particular advantage since permanent pins can be used. Dies can
be kept in better condition because regrinding them is much easier and more econom

ical. New dies can be finished more quickly and, therefore, at less cost.

The diagram below illustrates the maximum capacity of the machine when
arranged in this way. A study of it will show the variety of dies with pins which can
be ground.

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Diagram Showing Capacity of Machine When Arranged for Die Grinding

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Automatic

Feed and
Grinding Arrange
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SPECIAL ARRANGEMENT

FOR DRY GRINDING

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WITH DUST EXHAUST

Individual dust exhaust units can
be applied to standard machines without
changes in any of the machine mechanisms.

A complete unit consists of an ex
hauster, separator and collector.
is self-contained and motor driven, is at

tached to the floor at the rear of the
machine and connected to a nozzle at
tached to the wheel guard by a 3" rubber
and fabric hose. Dual duty units are
available, a single unit taking care of two

machines.

The unit

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Individual Dust Exhaust Applied to 10'
x 36" Hydraulic Surface Grinder with

Automatic Cross Feed

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TYPE:

SPECIFICATIONS

Horizontal Grinding Vi'heel Spindle, Reciprocating Work Table Grinding with Periphery of Wheel

CAPACITY:

Nominal lengths
Width

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24", 36", 48" and 60"

Vertical distance,

table top to bottom of 10" grinding wheel: standard machines

table top to bottom of 20" grinding wheel: die

grinding arrangement (maximum) 7%"

(maximum) 13"

Vertical movement of wheel head ....

WORK TABLE:

Lengths of working surfaces ...
Width of working surfaces

Tee slots . .

SPINDLE:

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Material — heat treated alloy steel
Distance, outside to outside of

Bearings — hard bronze

spindle bearings

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Speed with 10" diameter grinding wheel

27%", 39%", Sl%" and 63%"

2 — Standard

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• • 2%" X iy2" and 2%" x 6%"

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WHEELS:

Standard ...............................................................................

Type

SPEEDS:

...............................................................................

10" diameter, lj/£" thick, 3" hole

Spindle speed with 10" diameter grinding wheel
Grinding wheel — surface feet per minute
Work table — feet per minute

FEEDS:

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Vertical — by hand, index graduated to
Cross feed —by

hand, high gear ratio for grinding, worm reduction for truing

— by power, automatic hydraulic, adjustable up to

Table traverse — Hydraulic power only — Adjustable up to approximately 100 feel per minute

DRIVE:

Motor

only — 7%

II.P., 1200 R.P.M. constant speed, direct belt to spindle and pumps

Width of spindle drive belt

WET OR DRY ARRANGEMENT:

Standard machines are arranged for wet grinding

Pump —

impeller type, belt drive, capacity ....

Tank — welded steel with sediment chamber, capacity .

35 gallons per min.

. 68 U. S. gallons

Dry grinding can be done without change in machine mechanisms, dust exhaust systems can

be applied if required

A disconnect clutch for coolant pump is recommended if much dry grinding is to be done.

STANDARD EQUIPMENT:

1 — Alundum grinding wheel 10" x lJ/£" x 3"
1 — Grinding w’hccl sleeve
1 — Diamond tool holder, without diamond

1 — Coolant tank with cover

1 — Cry stolon wheel 10" x V/i' x 3"

1 — Wheel guard
1 — Coolant pump with pipes and nozzle
All belts, guards, w'renchcs, motor pulley, etc.

FLOOR SPACE

10"

• 13%"

10"

27%"

1800 R.P.M.

No. 1 Straight

1800 R.P.M,
4700 approx.

100 approx.

.00025" std.

. 1"

3"

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Machine size

Length of base
Total projected length*
Total projected width

*Add 5% for machines equipped with magnetic chuck.

The Descriptions, Illustrations and Specifications in this Booklet are

Machines Built at Later

Norton Company to Constantly Improve its Machines, and

to the possibility of changes in accessory equipment.

Dates

May Differ in Detail Due to the Policy of

24"

5'-3H"
8'-2^"
5'-7"

36"

7'-3^"

10'-2^"

5'-7"

Correct at the Time of Printing.

9'-3H"

12'-2%"

5'-7"

60"48"

ll'-3H"

M'-2%"

5'-7"

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SHIPPING SPECIFICATIONS

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Machine Lengths

Net weights

Domestic shipping weights
Export shipping weights
Export box dimensions — 5'-7" x
Cubics

Exact weights cannot be given because of variations in castings and equipment. Weights are in
pounds and include motors and magnetic chucks. Cubics are in cubic feet.

10" x 36" Hydraulic Surface

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7'-2" x

Grinder with Automatic Cross Feed and Wheel Guard Type Truing Device

(approximate)

length

24"

7450

36"

8250

8150 9050
8550

8'-0"

328

9550

lO'-O"

405

• 48"

9100

9950

10550

12'-0"

492

60"

10050

10900
11600

14'-0"

560

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NORTON

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MACHINES

Semiautomatic Cylindrical Grinders

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Universal Grinders

MACHINES FOR

• CYLINDRICAL GRINDING

• SURFACE GRINDING

• CYLINDRICAL AND FLAT LAPPING

• UNIVERSAL TOOL AND CUTTER GRINDING

• UNIVERSAL GRINDING

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• CAM AND SHAPE GRINDING

• CRANKPIN AND CRANKSHAFT BEARING
GRINDING

• ROLL GRINDING

•

ATTACHMENTS

SPECIAL WORK

AND EQUIPMENT FOR

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P/ain Cylindrical Grinders

MACHINE DIVISION OFFICES

Worcester 6—New Bond Street

Hartford 7—1007 Farmington Avenue .. Tel. No. 3-6462

Cleveland 3—1306 East 55th Street. . . Henderson 1-9500

Detroit 8—5805 Lincoln Avenue

Chicago 32—4737 So. Christiana Ave...Lafayette 3-8700

New York Area—Green and North Streets,

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Teterboro, N. J

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Tel. No. 2-4641

Trinity 5-8991

Bryant 9-6170

for complete line of
Norton Grinding and

Lapping

Machines

Write for Catalog

1843

OTHER NORTON PRODUCTS

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Cutter and Tool Grinders

NORTON

WORCESTER 6, MASS.

EXPORT: NORTON BEHR-MANNING

Abrasives

Non-Slip Aggregates

Grinding Wheels

Encapsulating Machines

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Surface Grinders

COMPANY

WORCESTER 6, MASS., U.S.A.

Cable Address: NORBEMO, Worcester

NORBIDE Products

U. S. A.

OVERSEAS INC.

Refractories

■;

Lapping Machines

Form 1

745-14P-7-54 2000

LZ\akinq better products ...to

make other products better

Printed in U.S.A.