เครื่องมือวัดความแข็งของยาง GS-Series

เครื่องมือวัดความแข็งของยาง
DUROMETER (RUBBER HARDNESS TESTER) JIS K6253 & SRIS STANDARD

When the base of Durometer and workpiece are cohered each other, the indentor changes shape of workpiece by pressurized force caused by spring of Durometer and workpiece makes force against this force. Force amount of indentor is indicated as hardness when this pressurized force and repulsive force are equivalent. The reason why there are various kinds of Durometer, it is for the purpose of measuring various hardness for soft materials like sponge and hard materials like plastic by combinging strong and weak spring force and shape of needle indentor (sharp pointed or round)

• Compliance with JIS K 6253, ISO7619, ISO868 and ASTM D 2240 standard for hardness test of vulcanized or thermoplastic rubber
• This is Durometer to comply with JIS K 6253 (new JIS) standard established in 1993 for the purpose of conforming to ISO (International Standard Organization).
• Durometers consist of 3 type namely, Type A for medium hardness, Type D for high hardness and Type E for low hardness.
• Type A tends to indicates higher value by 1~2 points compared with former Type A durometers.
• Type D is suitable for hard rubber having more than 90 hardness measured by Type A durometer and Type E is suitable for soft rubber of which hardness is 20 and below measured by Type A durometer.