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Economical OIML Class M1 Hexagon-shaped Cast Iron Test Weights China Manufacturer 100g 200g 500g 1kg 2kg Hexagon Weights 1

Economical OIML Class M1 Hexagon-shaped Cast Iron Test Weights China Manufacturer 100g 200g 500g 1kg 2kg Hexagon Weights 2

Economical OIML Class M1 Hexagon-shaped Cast Iron Test Weights China Manufacturer 100g 200g 500g 1kg 2kg Hexagon Weights

Cast iron weights are a measuring tool that measures the weight of an object by comparing its mass. It is done by placing a weight on the balance pan while weighing the weight of another object. Cast iron weights usually have precise weight values because they are calibrated on a precision balance. When the balance weighs an object, the weight exerts a certain force on the balance, which in turn affects the balance point of the lever, thereby achieving accurate measurement of the mass of the object. ‌

Field standards for testing industrial devices

Class III, Class IIIL or Class IIII

Testing for non-marked scales without

Class designation

Verifying scales are within specified accuracy and tolerance

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The national standards for cast iron weights mainly include the following aspects:

Material requirements: Cast iron weights must be made of high-quality fine-grained gray cast iron. The material is generally high-strength cast iron HT200-250, and the working surface hardness is HB170-240

Surface treatment: The surface of the cast iron weight should be treated with an environmentally friendly paint coating to ensure its corrosion resistance and aesthetics

Accuracy level: The accuracy levels of cast iron weights are divided into three types: M1, M2 and M3. M1-level weights have the highest accuracy and are suitable for high-precision measurements; M2-level weights are second; M3-level weights have lower accuracy and are suitable for general measurements

Appearance design: There are many shapes of cast iron weights, including flat, square, lock, round, cylindrical and special-shaped, etc., to meet different usage requirements

Manufacturing process: During the manufacturing process, cast iron weights need to be artificially annealed (600 degrees-700 degrees) and naturally aged (2-3 years) to ensure their stable accuracy and enhanced tensile and bending strength. In addition, the working surface of the cast iron weight adopts the scraping process, and can be processed into shaped, shaped, shaped grooves and round holes, long holes, etc. ‌

‌Use and maintenance ‌: Cast iron weights should not be placed near magnetic fields, such as the magnetic workbench of the grinder, to avoid magnetic induction. During use, attention should be paid to regular inspection and maintenance. If any abnormality is found, it should be sent to the measurement station for inspection in time to avoid self-disassembly or rough treatment ‌

‌Standard basis ‌: The standard basis of cast iron weights includes the national standard "JB/T7974-1999" and "OIML - R111, JJG99-2022” Weight Verification Procedure

Grip-handle design for easy handling

Nesting slab weights for heavy-capacity weighing

Slotted weights and hangers for suspended weighing

Counterpoise weights for ratio weighing

Capacity 100g-500kg,1ton-10ton

Materials Cast iron

Class M1

Density 7000kg-7200kg/m3

Color Black, silver, blue, yellow....

Adjustable Cavity Yes

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