Arai Parts Co., Ltd. is a Japanese company founded in 1972 that manufactures specialized cold headed parts and assembly parts through cold heading and secondary processing. The company has 83 employees in Japan and 110 employees in its China factory. It produces parts for the automotive and electronics industries and has certified quality and environmental management systems.

1. COMPANY PROFILE
www.arai-parts.com
Made of recycled paper
We open up a new field of cold heading
Arai Parts Co., LtdArai Parts Co., Ltd

2.  Name:
Arai Parts Co., Ltd.
 Founded
June 1, 1972
 Sales
USD $30 Million - 2008
 CEO
Mitsuaki Arai
 Employees
83 in Japan
 Main product
Special Cold Headed Parts, Unique
Secondary Operations, Assembly parts
HQ
Headquarters, 1st
Factory
734 Kizone Yashio Saitama 340-0813
TEL +81-48(995)1223 FAX +81-48(995)5331
ISO 9001 Certified 2000
ISO 14001 Certified 2004
Second Factory
1079-1 Oaza 2 Yashio Saitama 340-0811
TEL +81-48(994)1933 FAX +81-48(994)1932
ISO 9001 Certified 2000
ISO 14001 Certified 2004
Tsukuba Factory
381-1 Baba Josho Ibaraki 300-2748
TEL +81297(30)5035 FAX +81297(30)5036
ISO 9001 Certified 2000
ISO 14001 Certified 2004
Company Motto: Originality, Ingenuity, Think and Take Action
Tsukuba
Factory
Second
Factory
Company Introduction
83 in Japan
 Main suppliers
O and K , Sugita Wire, Yashima,
Almine
 Main bank
 Main Customers
Aishin Seiki, Fuji Koki
Mitsubishi Heavy Industries Tokyo Mitsubishi UFJ Bank
Musashino Bank
Kameari Credit Union

3. Name: ARAI PARTS (TAICANG) Co., Ltd
Founded: Aug. 9, 2002
Address: A4 TONGJI TECHNOLOGY GARDEN, 288 SHANGHAI ROAD TAICANG
ECONOMY
DEVELOPMENT AREA, TAICANG CITY, JIANGSU PROVINCE 215400, CHINA
Tel: 0512-5356-7360 From Overseas: +86-512-5356-7360
Fax: 0512-5356-7365 From Overseas: +86-512-5356-7365
Sales: USD $5 Million - 2008 Employees:
110
Contact: Masahiro Hoshino- General Manager
Hui Lin Guo – Assistant General Manager
Wang Feng- Sales Manager
Terms: USD, Chinese Yuan or Japanese Yen
Main Bank: Tokyo Mitsubishi UFJ Shanghai
Bank of China Taicang
Factory Area: 8,330 Square Meters
Products:
Specialized Cold Headed Parts, Secondary Processing
Size: 3 to 20mm (Length = 100mm max)
Material: Fe, SUS, Aluminum
We can produce your specialized order.
ISO 9001:2000
Certified Factory
ISO 14001:2004
Certified Factory
China Taicang Factory Overview

4. China Taicang Factory
CAM Style Shaver
Heading
We have increased infrastructure to deal with difficult and precise parts.We have increased infrastructure to deal with difficult and precise parts.
Induction Heat Treat
Machining Center
Header CapacityФ #
WH Ф3 – 6mm 2
2D2B Ф3 – 7mm 2
2D3B Ф3 – 6mm 3
2D3B Ф7 – 16mm 4
Cutting Machines #
CAM Style Shaver 8
Precision Automated Lathe 23
CNC Precision Automated Lathe 2
Desktop Lathe 19
Tapping Machine 7
End Mill Machining Center 1
Heat treatment #
Induction Heat Treat 1
Thread Rolling Capacity #
DR375
M8 – M10
1
DR250 M5 – M7 1
DR200 M3 – M5 1

5. Cold heading & Secondary Processing
We are capable of manufacturing
complicated and difficult products that
other companies decline to quote.
Please do not hesitate to contact us.
Product Summary
Terminal / Sensor Products
Brake / Oil Pump Products
Door / Seat Products

6. We have equipped our machines with various sensors
and indexing parts containers so that these machines
can operate unattended for increased labor savings.
Main PlantMain Plant
Cold Heading
Tsukuba PlantTsukuba Plant
Header Type Capacity(ΦDxL) #
1 Die 2 Blow H-20 Φ2.5 × 100 2
AT-675 Φ7.0 × 75 2
TH2-4A Φ7.0 × 75 1
PF-210 Φ2.5 × 12 1
PF-420 Φ4.8 × 30 3
NP-40 Φ4.8 × 30 2
PF-630 Φ7.0 × 30 4
NP-60 Φ7.0 × 50 8
PF-860 Φ10.0 × 80 8
NP-81 Φ10.0 × 80 3
NP-120 Φ16.0 × 120 2
PF-1280 Φ16.0 × 120 1
3 Die 5 Blow TH3-6 Φ7.0 × 75 1
MST-508 Φ10.0 × 100 2
YMP-580 Φ9.0 × 40 3
6 Die 6 Blow MST-612 Φ16.0 × 120 1
SF-170 Φ20.0 × 120 1
YMP-780 Φ9.0 × 40 6
YMP-7120 Φ12.0 × 60 2
8 Die 8 Blow YMP-880 Φ9.0 × 40 5
2 Die 2 Blow
2 Die 3 Blow
5 Die 5 Blow
7 Die 7 Blow

7. Oval & D Shapes achieved by the cold heading
process can offer price reductions.
Headed products that eliminated
Sinter and Mechanical Processing
Extrusion Process Upset Process Backward Extrusion Process
Cold Heading Basic Process
Cold Heading Application Process
Cold Heading
Specialty Products

8. All machines are equipped with lift sensors
and continuously variable transmissions.
We strive to save labor with unmanned
automation and inspection. Each
machine line is equipped with an
automatic auxiliary hopper & conveyer.
Lift Sensor
Threads and Knurl
Screw, Knurling
Shave
Form Rolling
Pointing & Drilling
Examples of Thread Rolling Process
Thread Rolling Machine Type Number
DR-200
DR-250
DR-375
Kyoei SR-1, SR-15
Others Specialty Machine
Dainittetsu
Total 30
Secondary ProcessingSecondary Processing

9. We have a wide range of secondary operations to meet your needs.
Driller
Tapper
Mechanical Processing
Automated tapping machinePress Shaving Machine
Flanging Bending Shaving, Tier grinding, Pointing
Examples of Secondary Processing
Assembled Products
Second processing machine #
Machine tool #
Head part cutting machine 35 Lathe 3
End part cutting machine 44 Drill press 4
Automated pit tap machine 3 Flat-surface grinding machine 3
Automated pit drilling machine 6 Shaver 1
Automated tap process machine 5 Blade grinding machine 2
Procon cutting machine 5 Shot Blast 2
NC precision lathe 7
Desktop lathe 11
Press 35 - 50 ton 15
Others Multiple Others Multiple
Drill / TappingPress / Flattening

10. Collect Chuck Over Chuck
Header Blank
Header Blank
Head Process
Shaving
Tier Grinding
Spherical process
Tail Process
Shaving
Tier Grinding
Tip cut
We have approx. 100 CAM style automatic shavers that deal with cutting process. These machines perform
secondary operations after the cold heading process and can produce complex parts.
Head part processingHead part processing Tail part processingTail part processing
CAM Part
Cold Heading and Second Processing
Automatic feed

11. Axis straightness inspection
Thread presence & depth inspection
Axis damage, nick inspection
Dimensional measurement
TIR accuracy and dimensional inspection
Missed or incomplete operations
We can detect non-conforming products by applying
strobe lighting with high-speed digital camera inspection.
Inspection speeds 70-200 pieces per minute
We can detect dimensional non-conformances by
matching the digital image of the product with preset
screen overlay measurements.
Inspection speeds 70-200 pieces per minute.
Digital Image Processing Inspection System

12. Quality Principle / Environmental Principle
Environmental Principle
1. We aim for continuous improvement in all aspects.
2. Accomplish (Report/ Advise/ Communicate) to become
a reliable company.
May 7, 1998 internally enacted
Quality Principle
Thoroughly check procedure manual,
specification and product appearance to
eliminate incompatibility.
Sep.29, 2001 internally enacted
Internal Slogan
Arai Parts aim is for the entire enterprise to deal with energy saving and environmental
conservation activities by all employees . We acknowledge that we will reduce the global
environmental effect as one of our social responsibilities that will arise from our related
manufacturing and supply activities.
1. To strive to realize our environmental influence and aim to continuously
conserve through environmental activities.
2. We strive to prevent environmental pollution in all work sites.
We strive to reduce amount of resources used and waste discharged.
We strive to reduce the amount of energy used.
3. We abide by all environmental related decrees, bylaws and other demands postulated.
4. We will strive to inform employees of this environmental policy through instruction and
education. We have set environmental goals specifically to manage the project.
We request that our vendors understand and incorporate our environmental policy.
5. We will work with the local community to contribute to preserve the local environment.
6. We publish our environmental policy in the company introduction so that we can
disclose our environmental policy to the general public.
May 12, 2008
Arai Parts CO., LTD. CEO, President
Mitsuaki Arai