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No. PMPH002E-d 

- 1 - 

 

INSTRUCTION 

MANUAL

 

NTN Bowl Feeder

 

Type N25/N32/N40

 

 

 

 

 

Introduction 

Thank you for your purchase of the 

NTN bowl feeder

For correct operation of the 

NTN bowl feeder

, read this Instruction Manual carefully before use, and 

ensure execution of safe work through correct operation.   

Be sure to deliver this Instruction Manual to the end user. The end user is further requested to store the 

Instruction Manual carefully in a ready-to-take-out place to facilitate ready reference at any time after 

reading. 

 

1.  Before Use 

 

†

  When the machine is delivered, 

check for damage during transport 

and missing parts. If any trouble is 

found, inform the sales office nearby. 

†

  When packaging of the machine and 

holding fixture for transport are 

attached to the body, be sure to 

remove them before use. 

†

  Be sure to use 

NTN controller and 

bowl

 for this machine. 

Otherwise, specified performance of 

the machine may not be obtained.

 

Introduction ·········································  1

 

1.

 

Before Use ···································· 1

 

2.

 

Precaution for Safety ··················· 2

3

 

3.

 

Operating Principle ·························· 4

 

4.

 

Names of Main Component Parts ······· 4

 

5.

 

Dimensional Drawing ··················· 5

7

 

6.

 

Transportation and Installation ··········· 8

 

7.

 

Wiring and Operating Methods ···· 9

10

 

8.

 

Inspection and Adjustment ········ 10

13

 

9.

 

Troubleshooting······················ 13

14

 

10. Specifications ························· 15

18 

 

Before use 

Read this Instruction Manual 

thoroughly, and operate the 

machine correctly. 

CONTENTS

 

Summary of Contents for K-N25 Series

Page 1: ...ered check for damage during transport and missing parts If any trouble is found inform the sales office nearby When packaging of the machine and holding fixture for transport are attached to the body be sure to remove them before use Be sure to use NTN controller and bowl for this machine Otherwise specified performance of the machine may not be obtained Introduction 1 1 Before Use 1 2 Precaution...

Page 2: ...lace of extremely low temperature or high temperature and high humidity See the next page for operating environmental conditions y This machine is a heavy material See the specification in Section 10 for the mass In transporting the machine wear safety shoes watch out for dropping and take due care y Fix the machine securely after installation y Do not conduct the installation and assembly work wi...

Page 3: ...fect condition such as unusual noise abnormal vibration and omission of parts Note 2 Where the bowl is equipped with the mechanism to align specified parts any parts other than the specified parts cannot be charged Note 3 Operating environmental conditions Operating ambient temperature 0 to 40qC Operating ambient humidity 30 to 90 No dew condensation is allowed Operating altitude 1000 m max Storag...

Page 4: ... the leaf spring is so set that the vibration may be nearly resonant to the suction frequency of the vibration magnet Accordingly a large vibration can be put forth with small exciting force 4 Names of Main Component Parts Note The actual structure may be different from the illustration shown above because of reasons such as different shapes of bowl and controller and absence of the bowl internal ...

Page 5: ... A N40 A D1 298 386 452 D2 165 230 300 D3 336 450 530 H1 256r15 286r20 272 40 0 A 315 420 500 B 45r15 64r20 45 40 0 C 37 5 45 48 D M10 u 80 M16 u 100 E K P0800 K P0801 8 M6 tap u 15 6 M8 tap u 15 12 M6 tap u 15 Bowl mounting surface Bowl mounting surface 4 M10 tap through Spot facing I15 depth 10 Controller Base plate dimensional drawing top view Hex bolt Hex bolt Detail A Bowl mounting surface 6 ...

Page 6: ...0R L1T4 Unit mm D5 H1 H5 H6 N25 198 5 245 314 18 N32 268 250 351 21 N40 334 260 363 21 N40 1 334 310 413 21 With bowl mounting flange K N25R LF1 2 K N32R L2F2 4 K N40R LF4 K N40R L1F4 Unit mm D6 D7 H1 H7 H8 A B N25 269 225 245 270 25 250 8 I7 through N32 300 230 250 285 35 280 6 I9 through N40 420 365 260 295 35 400 6 I9 through N40 1 420 365 310 345 35 400 6 I9 through Note For dimensions of the ...

Page 7: ...R LAT2 4 Unit mm D5 H1 H5 H6 N25 198 5 256r15 325r15 18 N32 268 286r20 387r20 21 N40 334 272 40 0 375 40 0 21 With bowl mounting flange K N25R LAF1 2 K N32R LAF2 4 K N40R LAF4 Unit mm D6 D7 H1 H7 H8 A B N25 269 225 256r15 281r15 25 250 8 I7 through N32 300 230 286r20 321r20 35 280 6 I9 through N40 420 365 272 40 0 307 40 0 35 400 6 I9 through Note For dimensions of the base plate and the bowl moun...

Page 8: ...is intended set base clamps and setscrews in 2 places each In the case of a free set base set free set clamps in 3 places as shown below Base mounting hole at 4 places Precautions for installation 1 Assemble and set the machine with sufficient care paid to defects such as deformation of the bowl and the alignment mechanism 2 Wear safety gloves to prevent bare hands from coming into contact with sh...

Page 9: ...hine under the maximum acceptable amplitude of leaf spring in the item 8 in order to prevent breakage of leaf spring CAUTION Relating to controllers provided with selector switches such as selection of full wave half wave 50 60 Hz and 100 200 V and variable frequency controllers provided with the F V curve setting function adjust the settings to the specifications and power requirements of the bod...

Page 10: ...ustment of leaf spring 1 Acceptable maximum amplitude of leaf spring To prevent break of the leaf springs operate the machine at amplitude lower than shown in the following table If the machine should be operated at higher amplitude the leaf springs may break at an early date When measuring the amplitude be sure to attach the supplied amplitude marks as shown below and total the readings of upper ...

Page 11: ... actual operating time of about 40 hours When the tightening is normal there is hardly the additional tightening allowance But consider this requirement as retightening of comfortable fitting of the leaf spring 4 Correction of fatigue When the machine is operated with the speed control knob set to the MAX position at all times add 1 or 2 pieces of leaf springs to a leaf spring unit in either one p...

Page 12: ...n core tightening bolt to the specified torque At this time be careful so that the position set in 2 above may not deviate 4 Pull out the clearance gauge Check that no deviation is present in the clearance between the magnet and the movable iron core 5 Attatch the cover 3 Change of power frequency The power frequency of the NTN bowl feeder is adjusted in conformance to the value applicable to the ...

Page 13: ...er source frequency In the case of 50Hz In the case of 60Hz Setting of DIP switch by K EGA57 6 21 6 2 6 2 6 21 9 Troubleshooting If any trouble should be found check the following points 1 No vibration at all In this case distinguish the trouble between mechanical system and electric system as shown below for checking Turn ON the POWER switch remove the cover and bring an iron piece close to the v...

Page 14: ... of 200 V specification 2 Leaf spring mounting bolt is loosened 3 Tightening bolt of bowl etc is loosened 4 Magnet clearance is too large 5 Omission of removal of fixtures used for transportation 3 Amplitude is decreasing during use 1 Leaf spring is fatigued 2 Leaf spring mounting bolt is loosened 3 Leaf spring is damaged and rust is found 4 Foreign substance is caught in the magnet clearance 5 Bo...

Page 15: ... last digit 2 200 V 1 8 Dissipation power VA 360 Drive method Full wave Frequency times min 6000 50 Hz 7200 60 Hz Spring angle T Tq q 15q Max loading mass kg work bowl mass 15 Magnet part No Part No last digit 1 for 100 V K PMG 213 Part No last digit 2 for 200 V K PMG 223 Cable size u u length from center Magnet 1 0 mm2 u 0 35 m Body 1 5 mm2 u 0 46 m Leaf spring fitting places 3 Standard No of lea...

Page 16: ...it 4 Half wave 3000 50 Hz 3600 60 Hz Spring angle T Tq q 15q Max loading mass kg work bowl mass 23 Magnet part No Part No last digit 2 for full wave K PMG 323 1 Part No last digit 4 for half wave K PMG 323 Cable size u u length from center Magnet 1 0 mm2 u 0 44 m Body 1 5 mm 2 u 0 68 m Leaf spring fitting places 3 Standard No of leaf springs set Part No last digit 2 for full wave 7 pieces u 3 plac...

Page 17: ...ave 6000 50 Hz 7200 60 Hz Part No last digit 4 Half wave 3000 50 Hz 3600 60 Hz Spring angle θ 15 Max loading mass kg work bowl mass 35 Magnet part No K PMG 324 Cable size length from center Magnet 1 0 mm 2 0 44 m Body 1 5 mm 2 0 68 m Leaf spring fitting places 4 Standard No of leaf springs set Part No last digit 2 for full wave 8 pieces 4 places 32 pieces Part No last digit 4 for half wave 9 piece...

Page 18: ...600 60 Hz Spring angle T Tq q 15q Max loading mass kg work bowl mass 35 Magnet part No K PMG 324 Cable size u u length from center Magnet 1 0 mm 2 u 0 44 m Body 1 5 mm2 u 0 68 m Leaf spring fitting places 4 Standard No of leaf springs set 6 pieces u 4 places 24 pieces Leaf spring part No material K PLS2 150u30 Steel Leaf spring dim mm Length hole pitch u u Width u u Thickness 174 150 u 40 u 3 Leaf...

Page 19: ...ns specified in the card You are requested to keep the card after reading the descriptions given therein carefully The Instruction Manual is subject to change without prior notice for functional improvement or other purposes Revised March 3 2014 NTN Technical Service Corporation Precision Equipment Division 1578 Higashi Kaizuka Iwata Shizuoka 438 8510 Japan PHONE 81 0538 37 8104 FAX 81 0538 37 812...

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