Qingdao Qianshao Precision Instrument Co., Ltd.  

Product Name: High Precision Granite Straight Edges Model NO.: SP 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: 0~2000mm Measurement Object: Straightness Material: Granite Type: Straight Edge 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 Precision Granite Straight EdgesQIANSHAO is the leading manufacturer of Granite Surface Plates since 1979, providing various kinds of high accuracy and quality granite 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: 4.61x10-6°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 modelstraightness&flatness of working surfaceparallelism between working surfacessquareness between working surface and side surfaceoverall dimension(mm)weight/unit(kg)precision grade(µm)000000000SP4001.62.62.43.9813400×60×353.14SP6302.13.53.25.310.518630×100×5010.74SP1000354.57.515251000×160×5046SP16004.47.46.611.122371600×200×8082.2SP20005.498.113.527452000×250×100159.6Note : We are able to manufacture according to customer's specifications.