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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.
Before use
Read this Instruction Manual
thoroughly, and operate the
machine correctly.
CONTENTS
Introduction ········································· 1
1. Before Use ···································· 1
2. Precaution for Safety ··················· 2 3
3. Operating Principle ·························· 4
5. Dimensional Drawing ··················· 5 7
6. Transportation and Installation ··········· 8
8. Inspection and Adjustment ········ 10 13
9. Troubleshooting······················ 13 14
10. Specifications ························· 15 18
- 1 -
No. PMPH002E-d

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Summary of Contents for NTN K-N25 Series

  • Page 1: Table Of Contents

    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.
  • Page 2: Precaution For Safety

    Precaution for Safety This machine is designed and manufactured for parts feeding equipment based on the concept of trouble-free operation and labor saving. However, the user is also responsible for ensuring safety. Read this manual carefully before starting use, and be sure to follow the description below on safety. Also be sure to follow the warning and caution label attached to the body.
  • Page 3 Instruction Manual and the Manual enclosed in the same package. [2] Be fully careful to avoid such operations as to jeopardize the safety of the NTN bowl feeder. If a sign of change liable to jeopardize the safety of the machine should be found, inform NTN to that effect.
  • Page 4: Operating Principle

    Operating Principle NTN bowl feeder is designed to magnetically vibrate a bowl and a lower vibrator coupled to each other with a leaf spring set at a certain angle of inclination. As a result of this rotary vibration, works are aslant in the upward direction in the bowl to go forward little by little.
  • Page 5: Dimensional Drawing

    Dimensional Drawing (1) Circular base specifications <basic type> K-N25 K-N32 K-N40 K-N40 6-M8 tap u 15 8-M6 tap u 15 12-M6 tap u 15 Bowl mounting surface Bowl mounting surface Bowl mounting surface Unit: mm N40·1 4-M10 tap through Spot facing: I15, depth: 10 Controller (45) (47)
  • Page 6 (3) Circular base specifications <With auxiliary hopper in bowl> K-N25 K-N40 K-N32 K-N40 Unit: mm (570) 230–290 (630) 290–340 (650) 290–350 N40·1 (700) 290–350 <With separation bottom> K-N25 K-N40 K-N32 K-N40 Unit: mm 198.5 (314) (351) (363) N40·1 (413) <With bowl mounting flange> K-N25 K-N32 K-N40...
  • Page 7 (4) Free set base specifications <With auxiliary hopper in bowl> K-N25 K-N32 K-N40 Unit: mm 256r15 (580r15) 230–290 286r20 (665r20) 290–340 (662 290–350 <With separation bottom> K-N25 K-N32 K-N40 Unit: mm 198.5 256r15 (325r15) 286r20 (387r20) (375 <With bowl mounting flange> K-N25 K-N32 K-N40...
  • Page 8: Transportation And Installation

    Transportation and Installation CAUTION The machine is heavy. When required, transport the machine carefully with a hoisting accessory mounted as shown below. Note carefully that serious accident may result when the machine is dropped. Hanging bolt (1) Transportation [1] When the machine is of a type with M12 nut provided at the bowl center, relocate the machine with M12 hanging bolts mounted as shown below.
  • Page 9: Wiring And Operating Methods

    Wiring and Operating Methods WARNING Ensure that the supply voltage is as shown on the machine nameplate (seal bearing the type, power supply and manufacturer’s serial No.) of the vibrator body. Be sure to connect the grounding wire of the power source. 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...
  • Page 10: Inspection And Adjustment

    K-PLS2-116 u 20 (for half wave) K-PLS2-150 u 30 N40·1 (Note) When a recommended speed is specified by NTN, set the pointer to the scale of the recommended speed. Amplitude mark [2] Caution in attaching and detaching leaf spring When attaching and detaching the leaf spring, be sure to complete one unit before moving to the next unit.
  • Page 11 b) Place spacers between leaf springs, and apply grease or rust preventative Spacer oil between the spring and the spacer. Apply grease or rust-preventive oil. At that time, make sure not to include dirt and chips between them. c) Tighten the bolts to the tightening torques that are specified as guide values in the table below.
  • Page 12 The clearance between the magnet and the moving iron core is set to a value shown in the following table when the body is shipped from NTN. But, since minimization of the clearance is advisable to the extent not to allow contact of them with each other at the occasion of maximum amplitude, check the clearance from time to time to keep a proper value.
  • Page 13: Troubleshooting

    <For information: How to check the number of leaf springs for surplus or shortage> Check according to the following method whether the number of leaf springs currently mounted is excessive or short for the bowl and the alignment mechanism used. Slightly loosen the leaf spring mounting bolt located at one place while allowing continuous vibrations of the machine, and check the amplitude.
  • Page 14 [4] Omission of removal of fixtures used for transportation When you inform NTN of trouble condition with unknown cause, let them know the detail as far as possible with reference to the above so that they can take a measure as soon as possible.
  • Page 15: 10. Specifications

    10. Specifications K-N 25 A M 1 Voltage and drive system (1: 100 V Full wave, 2: 200 V Full wave, 4: 200 V Half wave) Bowl mounting type Design change code Feed direction (R: CW, L: CCW) Body size Body type K-N25 K-N25...
  • Page 16 K-N 32 2 M 2 Voltage and drive system (2: 200 V Full wave, 4: 200 V Half wave) Bowl mounting type Design change code Feed direction (R: CW, L: CCW) Body size Body type K-N32 K-N32 K-N32 K-N32 Circular base spec. K-N32 K-N32 K-N32...
  • Page 17 K-N 40 A M 2 Voltage and drive system (2: 200 V Full wave, 4: 200 V Half wave) Bowl mounting type Design change code Feed direction (R: CW, L: CCW) Body size Body type K-N40 K-N40 K-N40 Circular base spec. K-N40 K-N40 K-N40...
  • Page 18 K-N 40 1 M 4 Voltage and drive system (4: 200 V Half wave) Bowl mounting type Design change code Feed direction (R: CW, L: CCW) Body size Body type Product No. K-N40 K-N40 K-N40 K-N40 (large amplitude spec.) With aux. hopper With separation With bowl Bowl mounting type...
  • Page 19 About NTN Parts Feeder Shipping Warranty Card A shipping warranty card is attached to this product. Be sure to receive the card at the occasion of your purchase of the product. The warranty card assures free repair of the product in accordance with conditions specified in the card.

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