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A professional manufacture and sales of various electronic balances, moisture analyzers, viscometers and laboratory instrument manufacturer of weight measure instruments.​​​​​​​.

Cast Iron Weight Plates – High Precision M1 Class, Durable & Calibrated 1
Cast Iron Weight Plates – High Precision M1 Class, Durable & Calibrated 2
Cast Iron Weight Plates – High Precision M1 Class, Durable & Calibrated 1
Cast Iron Weight Plates – High Precision M1 Class, Durable & Calibrated 2

Cast Iron Weight Plates – High Precision M1 Class, Durable & Calibrated

The Cast Iron Weight Plates – High Precision M1 Class are durable, accurately calibrated weights designed for serious strength training. Made from solid cast iron, they ensure long-lasting use and precise weight measurements for consistent workouts. Their high precision M1 classification guarantees top accuracy, making them ideal for both professional and home gyms.
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Product advantages

Crafted with M1 class high precision calibration, these cast iron weight plates ensure consistent and accurate weight for optimal training performance. Engineered for durability, their robust construction withstands rigorous use while maintaining shape and accuracy over time. Featuring a sleek design and practical size, they provide excellent grip and compatibility with standard weightlifting equipment.

Team strength

Our dedicated team of fitness experts, engineers, and quality controllers drives the excellence behind our Cast Iron Weight Plates. With a focus on precision and durability, our specialists ensure every plate meets the strict M1 calibration standards, delivering unmatched accuracy for all training levels. The collaborative effort combines advanced manufacturing techniques with rigorous testing, guaranteeing consistency and longevity. Committed to empowering athletes and fitness enthusiasts, our team’s passion transforms raw materials into high-performance weight plates that support strength development and reliable workouts. Trust in our expertise—where precision engineering meets durable craftsmanship to enhance your training experience.

Why choose us

Our dedicated team of engineers and quality specialists ensures every Cast Iron Weight Plate meets the highest standards of precision and durability. With expert craftsmanship and rigorous M1 class calibration, our team guarantees consistency and accuracy in every plate, supporting serious athletes and fitness enthusiasts. Driven by innovation and a commitment to excellence, our team integrates advanced manufacturing techniques with strict quality control to deliver reliable, long-lasting performance. This strong team foundation empowers us to provide you with weight plates that enhance your training experience, ensuring safety, precision, and satisfaction with every workout session. Together, we build strength—from our team to your workout.

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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we welcome custom designs and ideas and is able to cater to the specific requirements. for more information, please visit the website or contact us directly with questions or inquiries.
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We also provide customized electronic balances/ laboratory scales with special functions according to customer needs.


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If you have any question, please contact us.

Tel: 0086-(0)519-85286336

Mobile: 0086-136 0612 1307

E-mail: weighinginstru@gmail.com

Wechat/Whatsapp: 0086-136 0612 1307

Add: Huayuan Road, Mudu Town, Jiangsu Province, PRC

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