The utility model relates to an elevator counterweight, which comprises a shell and a filler. The shell is blow-molded from engineering plastic, and the filler is uniformly filled in the shell. The shell is obtained by heating engineering plastic in a hollow blow molding machine at 170–250°C, with an air blowing time of 70–150 s, an air release time of 5–10 s and an air blowing pressure of 0.4–0.75 MPa, followed by mold shaping. The filler is formed by uniformly mixing cement, iron ore, iron powder, steel bars and water in a mixer. The utility model provides an elevator counterweight with low cost, simple process and high corrosion resistance.
Country Code: CN
Application Number: CN200920071381.7
