100 kg
100 kg

100 kg

Our factory, in collaboration with research institutions such as the National Institute of Metrology of China and the National Iron and Steel Research Institute of the Ministry of Metallurgy, has jointly developed JF-1 non-magnetic stainless steel (density 8.000 g/cm³). Weighing standards of the E2 class and other “International Recommendations” manufactured from this material were officially approved by a panel of experts in Beijing in 1991.

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Large-mass stainless steel weights

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0535-5711385

0535-5718181

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Detailed Introduction

Characteristics

Material: Stainless steel

Grade: F2, M1

Density: 7.85 g/cm³

Specification: 100 kg–2000 kg

Frequently Asked Questions

The Calibration Interval for Weights

Customers often overlook the calibration interval for weights, resulting in accuracy exceeding specifications after prolonged use. Under normal operating conditions, industrial-grade weights (M1 and M2 classes) should be calibrated every 1–2 years, while high-accuracy weights (E2 and F1 classes) require annual calibration. In special service environments—such as chemical processing or humid settings—the calibration interval should be shortened.

Daily Cleaning and Maintenance of Weights

When high-precision weights (such as E2 and F1 class) become contaminated with dust or oil, their mass may deviate from the nominal value. Therefore, direct hand contact with the surface of these weights is prohibited in daily use to prevent corrosion caused by sweat; instead, they should be wiped with anhydrous ethanol and allowed to air-dry naturally. Regular inspection and maintenance are also recommended.

Deformation issue with weight storage

Prolonged stacking, contact with hard objects, or exposure to high-temperature environments can cause slight deformation of weights, thereby affecting their accuracy. It is recommended to store weights in the factory-supplied weight boxes, arranged by category, in a dry, room-temperature, vibration-free environment, and to avoid stacking, compression, and direct sunlight.

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Our Services

Pre-sales Selection Guidance Service

Based on customers’ application scenarios—such as metrological calibration, industrial quality control, and scientific research—and their precision requirements, our expert team provides tailored, one-on-one equipment selection recommendations.

In-Sales Customization and Supporting Services

We offer personalized customization services, enabling the production of individual weights and custom counterweights tailored for sensor manufacturers and weighing instrument manufacturers, with specifications and shapes adjusted to meet specific customer requirements.

After-sales Maintenance and Technical Support Services

We offer free technical consultation to address questions related to weight storage, cleaning, calibration, and other relevant matters, and provide guidance on proper maintenance practices to extend product service life.

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Email:fyfama@aliyun.com

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Contact: Fu Damin

13708910145

Sales Hotline:0535-5711385/0535-5718181

E-MAIL:fyfama@aliyun.com

Website:www.guojianfama.cn

Address: Headquarters of Daxindian Town, Penglai District, Yantai City, Shandong Province

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