Number of testing chamber: A type: 2 chambers. B type: 4 chambers.
Revolution space: 23×23×23 cm
Testing speed: 60 rpm.
Specimen size: 10㎝×12㎝. Total 4 pcs.(longitude and latitude 2 pcs. each.)
Rubber tube: φ31×150, T=3mm. weight: 50+-2g. hardness: 42 +- 5 degree.