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Durable M1 Cast Iron Weights for Scale Calibration

Adam Equipment’s M1 class cast iron calibration weights are built for reliable performance in industrial, laboratory, and commercial scale calibration. Designed to meet OIML M1 standards, these robust cast iron weights offer high accuracy and long-lasting durability for demanding environments.

Perfect for calibrating heavy-duty weighing equipment, the weights are manufactured from high-density cast iron and feature stable measurement characteristics and rugged construction. These are ideal for field service technicians, lab professionals, and manufacturers who require dependable calibration tools at an excellent value.


Key Features

  • OIML M1 Class: Suitable for calibrating medium- to large-capacity scales with defined tolerances
  • Cast Iron Construction: Ensures strength, stability, and long life in demanding industrial settings
  • Available Sizes: Choose from 5 kg, 10 kg, or 20 kg weights
  • Certified Accuracy: Adheres to M1 tolerances; optional UKAS calibration certificate available
  • Convenient Handling: Knob design allows easy lifting and secure placement on weighing platforms

Technical Specifications

Nominal Weight Class Density Magnetic Susceptibility Maximum Permissible Error
5 kg OIML M1 7.2 g/cm³ < 0.8 250 mg
10 kg OIML M1 7.2 g/cm³ < 0.8 500 mg
20 kg OIML M1 7.2 g/cm³ < 0.8 1000 mg

Downloads & Resources

Adam Equipment M1 Cast Iron Test Weights
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