Yao Monozukuri

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Metal Products Manufacturing
AOI SPRING CO., LTD. 

Wire springs (compression springs, tension springs, torsion springs, etc.)
Flat springs, stamping
Wire forming
Springs, assembly of stamping metal, welding, etc.
Degreasing, ultrasonic cleaning

We have various equipment.
We have cutting-edge, high-speed processing equipment.
Our equipment is customized to our unique needs and processes, providing us the high-tech edge in manufacturing.
We have developed equipment which allows us to mass-produce products with minimal manpower.

Various springs for battery, light electrical equipment, automobiles, medical equipment, agricultural equipment, living facilities, other equipment, etc.

We work to ensure our employees and their families' happiness and contribute to the advancement of society through employee and company growth. Together we will create a bright future for the world and its descendants.

ISO 9001 certification obtained in March, 2003
ISO 14001 certification obtained in July, 2005
The Best Environment Improvement Business Award awarded by Yao Chamber of Commerce and Industry in November, 2013
Highly skilled workers, including one employee awarded best grade in the Osaka Vocational Ability Development Association's November 2013 proficiency test
7 employees rated Production Proficiency Grade 1 for Metal Spring Production (Wire Springs Production Work)

Materials	Processing Technologies	Processing	Products and Uses
SPCC Stainless steel Aluminum Various spring steels	High-accuracy stamping (raising, bending) of thin items	・Pressed	Battery, light electrical equipment, electronic parts, etc.
Hard steel wire, piano wire Most SUS spring materials Oil tempered steel wire Monel metal, tantalum	High-accuracy processing of wire springs and wire forming	・Other Processing	Battery, light electrical equipment, medical equipment, agricultural equipment, other equipment, etc.

Commodity	Component	Industry
Automobiles	Side mirror mechanism element springs, electronic parts for automobiles, battery parts for HEVs	・Automobiles
Various home appliances	Battery parts, stamping products like washing machines, rice cookers, assorted spring products	・Home Appliances
Bicycles	Parts for saddles, springs, etc.	・Bicycles
Equipment in general	Springs	・Measuring Instruments ・Machine Tools

Machine Name	Processing Capabilities	Number of Machines
Forming press	20-80t	16 Units
Wire spring coiling machine	Wire diameter of Φ0.1-4.0mm	34 units
Wire spring forming machine	Wire diameter of Φ0.1-4.0mm	24 Units
Spring polishing machine		2 Units
Ultrasonic cleaning machine		1 Unit
Various machine tools		1 Set
Load tester		5Units
Toolmakers microscope		2 Units
Projector		2 Units
Image measurement device		1 Unit

・ISO 9001  Acquisition:2003
・ISO 14001  Acquisition:2005

We will respond to any request for a quote within 24 hours.
From design/order acceptance to delivery, everything will be done within our company.
For prototyping of 1-100 units, our prototype expert will handle the manufacture.
For mass production of 1,000-100,000 units, we have various processing equipment and production tools.
Once we receive an order, we will input the product information into our database as well as creating the drawing for it. We can handle your repeat orders safe and fast.

■ Address	7-18, Ota, Yao Ciry, Osaka 581-0037, Japan
■ TEL	+81-(0)72-949-8801
■ FAX	+81-(0)72-949-8802
■ Representatives	Takaaki Aoto
■ Date of Establishment	1953
■ Capital	24,000,000 yen
■ Number of Employees	40 people
■ Industry	Metal Products Manufacturing
■ URL	http://www.aoi-spring.co.jp

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