Mitsui Seiki Kogyo Co., Ltd. is a Japanese machine tool manufacturer founded in 1928 with over 700 employees and annual sales of 20.4 billion yen. The company produces high precision machine tools and air compressors through accumulated expertise and customized, flexible designs. Mitsui Seiki has a global network of sales and service centers and strives for ultimate accuracy in manufacturing through temperature control, robust foundations, scraping techniques, and in-house production of critical components.
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Global Network
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MITSUI SEIKI EUROPE LIAISON OFFICE
MITSUI SEIKI(USA)INC.
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MITSUI SEIKI(USA)INC. WEST COAST BRANCH
OFFICE
MITSUI SEIKI TAIPEI SERVICE CENTER
MITSUI SEIKI (SHANGHAI) SERVICE
CO.,LTD
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Domestic Overseas
MITSUI SEIKI (THAILAND) CO.,LTD
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Head Office,Head Office,
Main FactoryMain Factory
Tokyo Head Office,Tokyo Head Office,
Tokyo Sales OfficeTokyo Sales Office
Nagoya SalesNagoya Sales
OfficeOffice
Osaka SalesOsaka Sales
OfficeOffice
Hiroshima Sales OfficeHiroshima Sales Office
Fukuoka SalesFukuoka Sales
OfficeOffice
Sendai SalesSendai Sales
OfficeOffice
MatsumotoMatsumoto
Regional OfficeRegional Office
HamamatsuHamamatsu
Regional OfficeRegional Office
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Head office and Factory
wajima-machi, Hikigun, Saitama
158,200m2
e 鐚 66,100m2
ume (per month):
Machine tool about 30 units
Air compressor about 250 units
Precision machine ToolsPrecision machine Tools
CompressorCompressor
Storage, Machine Factory,OfficeStorage, Machine Factory,Office
Main Office, welfare facilityMain Office, welfare facility
7. High Precision
Identity of Mitsui Seiki
Result of accumulated know-
how from establishment
Longevity
Built to last
Rigid and rugged design
Flexibility
Every machine is hand-made
Customized to customers
request
Core Competencies
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Pursuing Ultimate Accuracy
Temperature ControlTemperature Control
Robust FoundationRobust Foundation In-house ProductionIn-house Production
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Manufacturing Techniques
ScrapingScraping
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Machine Tool Factory Size: 140m x 100m
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Complete Temperature Control
Air flow
Return
duct
Dual Layer
Ceiling
Air temperature controlled within 賊0.4
Dual structure ceilings, conditioned air down through
numerous small holes
Minimum wind at floor level
Minimum temperature difference in both vertical and
horizontal direction
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Robust Foundation
Over head crane
Piles
Bedrock
Building Foundation
Total of 1,700 piles
1 Meter thick concrete
Assembly foundation completely
isolated from the building foundation
2t Over head cranes for lighter parts
15t Over head cranes for heavier parts
Building
Foundation
Assembly
Foundation
15t Over head
crane
2t Over head
crane
Wall crane
Assembly Foundation
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Scraping True Craftsmanship
Required for achieving tolerances which cannot be done by
machining
Continuous procedures of measuring and adjustment until
final completion
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In-House Production
Critical components such as Spindles, Tables and Ballscrews
are designed and manufactured in house
Large castings are also machined and assembled in house
Deriving accuracy, performance, quality and lead-time control
Issues regarding these major items are therefore quickly and
easily dealt
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Logistics
Ship out
Unit
Assembly
Manufacturing of parts and assembly done within a single
building
Movement within a stable environment
Air locked shipping bay
Avoids outside air reducing temperature change
Prevents condensation
Machine ship-out
Shipping bay
Assemblyline5
Assemblyline1
Assemblyline2
Assemblyline3
Assemblyline4
Spindle head
assembly
Largemachineshop
SmallmachineshopUnit
assembly
Air Tool
room
Air
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Measuring Room
Sub-micron measurements taken in temperatures completely
controlled within 20賊0.1
Production of High precision machines are composed of a
combination of accurate measurement tools and techniques
Mitsui Brand Screw lead measuring machine, 3D-CMCs and
Roundness Measuring machines
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Feature and Advantage
Ultra High Precision
Built-to-last
Customized per the customers requirements
Full line of 5-axis machining centers and thread grinders
Used in the Cutting-edge Aerospace industries
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THANK YOUTHANK YOU
For further information please contact :For further information please contact :
B辿at RiesB辿at Ries
Cell : +1(201) 970-7838Cell : +1(201) 970-7838
bries@mitsuiseiki.combries@mitsuiseiki.com
Editor's Notes
We started in 1928 in the name of Toyo Seiki and in 1942 we merged with Mitsui Kosaku and officially went with the name we have now, Mitsui Seiki.
We used to have two separate factories, on near downtown Tokyo which made machine tools, and one here which made compressors. And in 2001, we consolidate the Tokyo factory to where we are here.