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Metal Products Manufacturing
AOI SPRING CO., LTD. 

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appealpoint
productCharacteristics
Wire springs (compression springs, tension springs, torsion springs, etc.)
Flat springs, stamping
Wire forming
Springs, assembly of stamping metal, welding, etc.
Degreasing, ultrasonic cleaning
TechnicalCapabilities
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.
businessAchievements
Various springs for battery, light electrical equipment, automobiles, medical equipment, agricultural equipment, living facilities, other equipment, etc.
managementOhilosophy
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.
otherPromotionPoints
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)
Technical Area Information
Processing Technologies  Divided into Three Manufacturing Categories: Materials, Processing and Manufacturing
MaterialsProcessing TechnologiesProcessingProducts and Uses
SPCC
Stainless steel
Aluminum
Various spring steels
High-accuracy stamping (raising, bending) of thin items・PressedBattery, 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 ProcessingBattery, light electrical equipment, medical equipment, agricultural equipment, other equipment, etc.
Final Products  Products that Utilize the Commodity Items and Technologies Possessed
CommodityComponentIndustry
AutomobilesSide mirror mechanism element springs, electronic parts for automobiles, battery parts for HEVs ・Automobiles
Various home appliancesBattery parts, stamping products like washing machines, rice cookers, assorted spring products・Home Appliances
BicyclesParts for saddles, springs, etc.・Bicycles
Equipment in generalSprings・Measuring Instruments
・Machine Tools
Manufacturing Capabilities
Machinery and Equipment Possessed
Machine NameProcessing CapabilitiesNumber of Machines
Forming press20-80t16 Units
Wire spring coiling machineWire diameter of Φ0.1-4.0mm34 units
Wire spring forming machineWire diameter of Φ0.1-4.0mm24 Units
Spring polishing machine2 Units
Ultrasonic cleaning machine1 Unit
Various machine tools1 Set
Load tester5Units
Toolmakers microscope2 Units
Projector 2 Units
Image measurement device1 Unit
Main Product Manufacturing Capabilities
・ISO 9001  Acquisition:2003
・ISO 14001  Acquisition:2005
Main Product Manufacturing Capabilities
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.
Company Infomation
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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