Manufacture
Production sites

KEF Japan Production site, Headquarters
Sakura, Chiba Japan
Main production site in Chiba (pictured) and Yamagata, Northern Japan production site
Material making
Mixing roll machine
Mixing roll machine for testing
Pressurized kneader
Feeder extruder (strainer)
Production
Hydraulic molding machine
Injection molding machine (horizontal type)
Injection molding machine (vertical type)
Bi-color different resin injection molding machine
Ultra shot machine
Clean room (Class 1000) cubicle
Test & Measuring for Quality Control
Clean room (Class 1000) cubicle
Oil resistance tester
Low temperature bending tester
Fatigue testing machine
Compression permanent strain tester
Large universal projector
Micro hardness tester (Wallace,UK)
Micro hardness tester (Bareiss,Germany)
Compression test machine
Tool microscope (NIKON / NEXIV)

KEF Shenzhen China production site
Material making
Mixing roll machine
Pressurized kneader
Cutting machine
Production
Hydraulic molding machine
Punching press
Secondary vulcanization oven
Pure water cleaning device
Clean room (class 1000)
Clean bench (class 100)
Clean booth (class 1000)
Clean dryer
Ultrapure water generator
Test & Measuring for Quality Control
Projection testing machine
Tension tester
Hydrometer
Hardness tester
Tool microscope
Curelastometer

KEF Thailand Production site
Material making
Mixing roll machine
Cutting machine(Cutter & Slitter)
Production
Vaccum press molding machine
Test & Measuring for Quality Control
Rheometer
Tool microscope
Manufacture Process

Manufacture process consists of 4 main steps;
Material making, production with compression or injection machine, peeling the parts from the produced sheets and quality control.
KEF develops its own Elastomer materials in our R&D section in the engineering team.