1. Technical Data of Ceramic roller: Code Unit OK969 OK979 OK989 OK999 MarkingColor / yellow blue red green Max.ServiceTemperature 1220 1280 1350 1450 AL2O3Content % ≥72 ≥76 ≥81 ≥85 RateofWaterAbsorption % ≤11 ≤9 ≤8.5 ≤7.5 Anti-bendingStrength MPa ≥40 ≥45 ≥51 ≥58 ThermalShockResistance / Excellent Excellent Excellent Excellent RefractoryDegree ≥1700 ≥1750 ≥1800 ≥1860 TotalIndicationRatio(TIR) mm ≤0.05% DiameterVariation mm +0.2,-0.3 LengthVariation mm +/-1.5 Roundness mm ≤0.2 2. Standard Sizes: Diameter(mm) Length(mm) Diameter(mm) Length(mm) 65--80 3000--5000 40 2000--3500 60 2700--5000 36 2000--3300 55 2700--5000 35 2000--3200 50 2400--4600 33.7 1800--3100 45 2200--3800 32 1800--3100 42 2200--3800 2351 1600--3100 3. Option of Ceramic Roller: ProductsType FiringTemperature OK969 OK979 OK989 OK999 InnerWalltile 1030--1180 √ √ √ √ GlazedFloorTile 1140--1200 √ √ √ √ Vitrified&outerwalltile 1180--1240 √ √ √ SquareTile 1190--1250 √ √ PolishingTile 1230--1250 √ √ HouseholdTile 1140--1250 √ √ SanitaryWare 1200--1280 √ 4. Package: Standard woodenbox