Qingdao Qianshao Precision Instrument Co., Ltd.  

Product Name: High Pecision Granite Squares Model NO.: SC Customized: Customized Certification: JIS, DIN, GB, SGS, ISO Precision Measuring Device: Precision Measuring Device Accuracy: A Measure Method: Manual Precision: 0.001mm Resolution: 0.001mm Range: 0?500mm Measurement Object: Squareness Material: Granite Type: Granite Square Brand Name: Qianshao Color: Black Precision Grade: 00 Trademark: Qianshao Transport Package: Wooden Case Specification: SGS Origin: Qingdao China HS Code: 9031900090 Product Description High Pecision Granite SquaresQIANSHAO is the leading manufacturer of Granite Surface Plates since 1979, providing various kinds of high accuracy and quality products.Product Speciality:1. Made of high quality Jinan Black Granite2. High precision and high stability.3. No rust and anticorrosion.4. Non magnetization.5. Good abrasion resistance.Physical Property of Jinan Black Granite:Specific Gravity: 3.03 g/cm3Shore Hardness: > 70Hs-80HsTensile strength: 211Kg/cm2Compressive Strength: 245-254MpaLinear Expansion Coefficient: 4.61´10--6/°CElastic Modulus: 30-50GpaWater Absorptivity: ≤0.13%Product Application:Mainly used as installation and inspection of machine tools, inspect vertical degree, parallelism and straightness of guideways and precision components in modern industry and scientific research institutes.Specifications :specification modelsquareness between measuring surface and datum surfaceflatness&straightness of measuring surfaceflatness&straightness of datum surfaceoverall dimension(mm)weight/unit(kg)precision grade(µm)000000000SC160*100241211160×100×251.23SC250*1602.551212250×160×353.4SC300*2002.551212300×200×405.48SC400*2503.571.22.512400×250×508.35SC500*3153.571.5312500×315×6018.9SC630*4004.591.531.22.5630×400×7029.81SC1000*6306122.551.531000×630×100138.5Note : We are able to manufacture according to customer's specifications.