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EMS - 3060K

EMS - 3060K - 1M

Motor Spindle

Motor Spindle

・・

1pc.

EMS - 3060K

Collet Chuck 

ȭ

30mm (CHK - 3.0) or 

ȭ

3.175mm (CHK - 3.175) 

・・

1pc.*

(For U.S. market 

ȭ

3.175mm

(CHK - 3.175))

Chuck Nut (K - 265)

・・

1pc.*

Air Hose

・・

1pc.*

EMS - 3060K : 0.3m
EMS - 3060K - 1M : 1m

Wrench (12 x 14)

・・

2pcs.

12

14

Inspection Card

・・

1pc.

᳨ᰝᡂ⦼⾲

Inspection Card

Operation Manual

・・

1set

ྲྀᢅㄝ᫂᭩

OPERATION MANUAL

* The collet chuck, chuck nut and air hose are attached to the Motor Spindle.

6 - 1  Specications

Motor Cord 
*Note 1

Length : 3m, 4 (3.7) m, 6 (5.7) m, 8 (7.7) m
(The Air Hose (

ȭ

4mm) of the same length is attached.)

Collet Chuck (CHK - 

□□

)

ȭ

0.5mm -

ȭ

6.0mm in 0.1mm increments and 

ȭ

2.35mm, 

ȭ

4.76mm,

ȭ

3.175mm, 

ȭ

6.35mm

Special arbor for metal saw (KCH - 03)

For O.D. 

ȭ

30mm and under 

Grinding arbor (AGM - 03)

For grindstone I.D. 

ȭ

5mm

Grindstone ange (EGF - 19)

For grindstone I.D. 

ȭ

19.05 x O.D. 

ȭ

40 x 7mm 

< Option >

Model

EMS - 3060K

EMS - 3060K - 1M

Maximum Motor Rotation Speed

60,000min

-1

 (rpm)

Spindle Accuracy

Less than 1μm

Max. Output

350W

Weight

565g

635g

Noise Level at 1m distance

Less than 70dB (A)

IP Code

IP57 (When air is supplied.)

*Note 1 : Motor Cord is sold separately.

Please select the suitable motor cord length for your application.

Fig. 1

6 - 2  Outside View

(300 or 1000)

(153.2)

(16.9)

(12.5)

(11)

136.3

108.5

(27.8)

ȭ

30 

-0.01

-0

ȭ

15.9

ȭ

18.5

ȭ

22.9

Dust Proof Cover Area

6 - 3  Torque Characteristics

1

2

3

4

5

6

7

8

9

0

50

0

100

150

200

250

300

350

400

450

10

20

30

40

50

60

Torque (cN

m)

Output (W)

Speed ( X 10

3

min

-1

 (rpm))

Continuous Duty Area

Continuous Duty Area

Torque

Torque

Output 

Output 

Fig. 2

REPLACING THE COLLET CHUCK

8.

Tool

Chuck Nut

Spindle Shaft

Loosen

12

14

Latch

Groove

Collet Chuck

Chuck Nut

Remove the tool according to the section  " 7. 
CHANGING THE TOOL " procedure above 
and remove chuck nut assembly (Fig. 4).

The collet chuck and chuck nut are secured 
by a groove in the collet chuck and a ange 
in the chuck nut. To remove the collet chuck 
hold the chuck nut in one hand and push 
diagonally down on the collet chuck. The 
collet chuck should be released (Fig. 5).

To install the collet chuck, hold the collet 
chuck at a slight angle, and insert it into the 
chuck nut (Fig. 6).
Press the collet chuck in the chuck nut by 
positioning the collet chuck in the chuck nut 
and pressing down on at surface (Fig. 5).
Be sure to fully engage the latch inside 
the chuck nut into the groove on the collet 
chuck's outer circumference area (Fig. 7).

Set the provided 12mm wrench on the 
spindle.

Place the provided 14mm wrench on the 
chuck nut and turn it counterclockwise to 
loosen the collet chuck and remove the 
tool. (The rst turn will loosen the chuck 
nut, but the tool will not release and turning 
will become stiff. Keep turning through the 
stiffness and the collet chuck will open.)

Clean the collet chuck and chuck nut, 
then insert the new tool and tighten the 
collet chuck by turning clockwise. Do not 
overtighten.

Wrench Seat

Collet Chuck

DOWN

Chuck Nut

Latch

Fig. 4

Fig. 6

Fig. 5

Fig. 7

OPERATION MANUAL

003

OM-K0525E

Thank you for purchasing Motor Spindle " EMS - 3060K 

 EMS - 3060K - 1M ". This Motor Spindle is designed for 

grinding, small diameter drilling and milling, etc. The E3000 CONTROLLER and Air Line Kit are required to drive 
this Motor Spindle. 
Read this and all the associated component Operation Manuals carefully before use.
Always keep this Operation Manual in a place where a user can referred to for reference at any time.

 Read these warnings and cautions carefully and only use in the manner intended.

 These warnings and cautions are intended to avoid potential hazards that could result in personal injury to the 

operator or damage to the device. These are classied as follows in accordance with the seriousness of the risk.

Class

Degree of Risk

 WARNING

A safety hazard could result in bodily injury or damage to the 
device if the safety instructions are not properly followed.

 CAUTION

A hazard that could result in light or moderate bodily injury or 
damage to the device if the safety instructions are not followed.

CAUTIONS FOR HANDLING AND OPERATION

1.

This Motor Spindle is not a hand tool. It is designed to be used on CNC machines or special 
purpose machines.

Do not touch the cutting tool while it is running. It is very dangerous.

Wear safety glasses, dust mask, and use a protective cover around the Motor Spindle whenever 
the Motor Spindle is rotating.

Never connect, disconnect or touch the Power Cord Plug or Motor Cord Plug with wet hands. This 
may cause an electric shock.

Never operate or handle the Motor Spindle until you have thoroughly read the Operation Manuals 
and safe operation has been conrmed.
1) To prevent injuries / damages, check the Motor Spindle and cutting tool for proper installation, 

before operating the Motor Spindle.

2) Before disconnecting the Motor Spindle, always turn the control power off and turn the 

compressed air supply to the CONTROLLER off. Then it is safe to remove the Motor Spindle.

When installing a Motor Spindle to a xed base, make sure the xed base is grounded in order to 
avoid the risk of an electric shock.

When installing a tool, tighten the collet chuck correctly and check again the collet chuck and 
chuck nut before use. Do not over-tighten the collet chuck. This may cause damage to the spindle.

Do not use bent, broken, chipped, out of round or sub-standard tools, as this may cause them to 
shatter or explode. Tools with fractures or a bent shank will cause injury to the operator. When 
using a new tool, rotate it in a low speed and increase speed gradually for safety.

Do not exceed the maximum recommended allowable tool speed. For your safety, use speeds 
below the maximum allowable speed.

Do not apply excessive force. This may cause tool slippage, tool damage, injury to the operator or 
loss of concentricity and precision.

 

 WARNING

Do not drop or hit this Motor Spindle, as shock can damage to the internal components.

Be sure to clean the collet chuck and chuck nut, the inside of the spindle before replacing the tool. 
If ground particles or metal chips stick to the inside of spindle or the collet chuck, damage to the 
collet chuck or spindle can occur due to the loss of precision.

When cleaning a Motor Spindle, stop the Motor Spindle and remove debris with a soft brush or a 
cloth. Do not blow air into the dust proof cover area (refer to section " 6 - 2  Outside View " ) with 
compressed air as foreign particles or cutting debris may get into the ball bearing. 

Always clean the tool shank before installing the tool in the Motor Spindle.

When sizing the correct collet chuck size to the tool shank diameter, a tolerance of +0 

- 0.01mm 

is strongly recommended. A tool shank within the +0 

 - 0.1mm range is mountable, however, this 

may cause poor concentricity and or insufcient tool shank gripping force. 

Select suitable products or tools for all applications. Do not exceed the capabilities of the Motor 
Spindle or tools.

Do not stop the supply cooling air for motor during operation of the machine.
Removing the air pressure from the Motor Spindle causes a loss of purging, allowing the Motor 
Spindle to ingest coolant. This will cause damage to the Motor Spindle.

Carefully direct coolant spray to the tool. Do not spray directly on the Motor Spindle body. If large 
amount spray directly on the Motor Spindle, it may cause excess load of the motor rotation with 
loss of durability to the Motor Spindle.

Stop working immediately when abnormal rotation or unusual vibration are observed. Immediately, 
please check the content of section " 13. TROUBLESHOOTING ". 

Always check if the tool, collet chuck, chuck nut, connection hose and supply air hose for 
damaged before and after operating.

If the collet chuck or chuck nut show signs of wear or damage, replace them before a malfunction 
or additional damage occurs.

After installation, repair, initial operation, or long periods of non operation, please refer to section 
" 11. BREAK-IN PROCEDURE " detailed in Table. 2. When checking the Motor Spindl, no vibration 
or unusual sound should be observed during rotation.

Do not disassemble, modify or attempt to repair this Motor Spindle. Additional damage will occur 
to the internal components. Service must be performed by NSK NAKANISHI or an authorized 
service center.

When using this Motor Spindle for mass production, please consider the purchase of an additional 
Motor Spindle to be used as a back-up in case of emergency.

Securely connect the compressor supply connection hose and the air hose to the Air Line Kit and 
the Motor Spindle to avoid accidental disconnection during use.

 

 CAUTION

BASIC PACKAGE

2.

When opening the package, check if it includes all items listed in " Table. 1 Packing List Contents ".
In the event of any shortage, please contact either NAKANISHI (see the " 4. CONTACT US " section) or your local 
dealer. 

Table. 1 Packing List Contents 

WARRANTY

3.

We provide a limited warranty for our products. We will repair or replace the products if the cause of failure is due to 
the following manufactures defects. Please contact us or your local distributor for details. 

Defect in manufacturing.

Any shortage of components in the package.

Where damaged components are found when initially opening the package.
(This shall not apply if the damage was caused by the negligence of a customer.)

CONTACT US

4.

For your safety and convenience when purchasing our products, we welcome your questions.
If you have any questions about operation, maintenance and repair of the product, please contact us.

Company Name

Business Hours

U.S. Toll Free No.
Telephone No.
Fax No.
Web Address

:

Industrial Div. 

:  8:30am to 17:00pm (CST)
   (closed Saturday, Sunday and Public Holidays)
:  800-585-4675
:  847-843-7664
:  847-843-7622
:  www.nskamericacorp.com

Contact Us

Contact Us

For U.S. Market

Company Name
Business Hours

Telephone No.
e-mail Address

:  
:  8:00am to 17:00pm
   (closed Saturday, Sunday and Public Holidays)
:  +81 (0) 289-64-3520
:  [email protected]

For Other Markets

FEATURES

5.

The Motor Spindle housing is made from precision ground, hardened, stainless steel (SUS) with an outside 
diameter of 

ȭ

30mm.

Excellent durability and high reliability are obtained by using a high-speed brushless motor, which eliminates 
the need for brush replacement and frequent maintenance.

A quick disconnect cord is available for easy brushless motor removal.

Various sizes of collet chucks are available CHK 0.5mm - 6.35mm. Standard collet chuck is CHK 3.0mm or 
CHK 3.175mm (For U.S. market CHK 3.175mm).

SPECIFICATIONS AND DIMENSIONS

6.

Temperature

Humidity

Atmospheric Pressure

Operation Environment

0 - 40°C

MAX.75%
(No condensation)

700 - 1,060hPa

Transportation and Storage Environment

-10 - + 50°C

10 - 85%

500 - 1,060hPa

CHANGING THE TOOL

7.

12

14

14

Chuck Nut

Tool

Loosen

Tighten

Spindle Shaft

12

Do not tighten the collet chuck without inserting a tool or dummy bur, as this will damage the collet 
chuck, spindle or chuck nut, causing difculty removing the collet chuck.

 

 CAUTION

Please set the cutting tools to minimize the overhang amount. 13mm is the maximum amount of 
overhang to maintain high accuracy and safety.

RECOMMENDATION

Fig. 3

When installing the collet chuck into the chuck nut, be sure to fully engage the latch inside the chuck 
nut to the groove on the collet chucks outer diameter area. In addition, remember that if the collet 
chuck is attached without being engaged with the latch of the chuck nut, the collet chuck cannot be 
removed and this may cause damage to the collet chuck or the spindle. 

 

 CAUTION

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