Motor Spindle OM-KK0951EN 000 EM20-S6000・EM25-S6000 EM30-S6000
OPERATION MANUAL
EM Series Motor Spindle
Thank you for purchasing Motor Spindle ” EM20 – S6000 ・EM25 – S6000 ・EM30 –
S6000 “. These Motor Spindles are 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.
CAUTIONS FOR HANDLING AND OPERATION
■ 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 classified 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
thedevice 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.
WARNING
① This Motor Spindle is not a hand tool. It is designed to be used on CNC
machines or special purpose machines.
② Do not touch the cutting tool while it is running. It is very dangerous.
③ Wear safety glasses, dust mask, and use a protective cover around the Motor
Spindle whenever the Motor Spindle is rotating.
④ Never connect, disconnect or touch the Power Cord Plug or Motor Cord Plug
with wet hands. This may cause an electric shock.
⑤ Never operate or handle the Motor Spindle until you have thoroughly read the
Operation Manuals and safe operation has been confirmed.
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.
⑥ Whenever installing a Motor Spindle to a fixed metal base, ensure that the
fixed metal base is grounded in order to avoid risk of an electric shock.
⑦ When installing a tool, tighten the collet correctly and check again the
collet and collet nut before use. Do not over-tighten the collet. This may
cause damage to the spindle.
⑧ 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.
⑨ Do not exceed the maximum recommended allowable tool speed. For your safety,
use speeds below the maximum allowable speed.
⑩ Do not apply excessive force. This may cause injury to the operator by
slippage or damage of the tool, or loss of concentricity and precision of the
Motor Spindle.
CAUTION
① Do not drop or hit this Motor Spindle, as shock can damage to the internal
components.
② Be sure to clean the collet and collet 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, damage to the collet or spindle can occur due to the
loss of precision.
③ 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.
④ Always clean the tool shank before installing the tool in the spindle.
⑤ When sizing the correct collet 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 insufficient tool shank gripping force.
⑥ Select suitable products or tools for all applications. Do not exceed the
capabilities of the Motor Spindle or tools.
⑦ Do not stop the supply cooling air for Motor Spindle 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.
⑧ 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.
⑨ Stop working immediately when abnormal rotation or unusual vibration are
observed. Immediately, please check the content of section ” 13.
TROUBLESHOOTING “.
⑩ Always check if the tool, collet, collet nut, connection hose and supply air
/ oil hose for damaged before and after operating.
⑪ If the collet or collet nut show signs of wear or damage, replace them
before a malfunction or additional damage occurs.
⑫ After installation, repair, initial operation, or long periods of non
operation, please refer to section ” 11. BREAK-IN PROCEDURE ” detailed in
Table. 4. When checking the Motor Spindle, no vibration or unusual sound
should be observed during rotation.
⑬ 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.
⑭ 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.
⑮ 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.
BASIC PACKAGE
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
The collet nut is attached to the Motor Spindle.
WARRANTY
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
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.
Contact Us
For U.S. Market
Company Name
Business Hours
U.S. Toll Free No.
Telephone No.
Fax No.
Website| : NSK America Corp.
Industrial Div.
: 8:00 to 17:00 (CST)
(closed Saturday, Sunday and Public Holidays)
: +1 800 585 4675
: +1 847 843 7664
: +1 847 843 7622
: www.nskamericacorp.com
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For Other Markets
Company Name
Business Hours
Telephone No.
e-mail| : NAKANISHI INC.
: 8:00 to 17:00 (JST)
(closed Saturday, Sunday and Public Holidays)
: +81 289 64 3520
: webmaster-ie@nsk-nakanishi.co.jp
FEATURES
① The Motor Spindle housing is made from precision ground, hardened, stainless
steel (SUS) with an outside diameter of φ20mm, φ25mm and φ30mm.
② Excellent durability and high reliability are obtained by using a high-speed
brushless motor, which eliminates the need for brush replacement and frequent
maintenance.
③ Easy to be attached to NC lathe or to replace the Motor Spindle, because the
connector is placed at the edge of the motor.
④ Various sizes of collets are available CHA 0.5mm – 4.0mm or CHK 0.5mm –
6.0mm. Standard collet is 3.0mm (CHA / CHK) or 3.175mm (CHA / CHK). (For U.S.
market 3.175mm (CHA / CHK)).
