Structure: The counterweight 25k can have one adjustment chamber, and the total volume of all adjustment chambers should not exceed 1/10 of the total volume of the weight. The cavity should be sealed and dust-proof. The adjustment chamber can be sealed with a threaded plug or knob.

Material: The counterweight 25k should be made of one or more pieces of material, and the corrosion resistance of the material should be equal to or better than that of gray iron. Under normal use, the hardness and strength of the material should be able to withstand the impact of home use.

Shape: Rectangular design with grooves on both sides of the 25k counterweight for loading and unloading, as well as grooves for forklift handling at the bottom of the weight. The edges and corners of the weight should be rounded, and the surface should not have sharp edges or corners or obvious sand holes to prevent wear and dust accumulation. According to our drawing dimensions.

Surface condition: In order to improve the corrosion resistance and hardness of the weight, an appropriate metal coating or coating should be applied to the surface of the weight.

Maintenance techniques for cast iron weights: The warehouse where the weights are placed should be clean and dry, ensuring temperature and humidity. When stacking the weights, a wooden board should be placed at the bottom, and the upper part should be covered with cloth or film. Regular observation and recording should be carried out.