How do heavy-duty metal casters perform in different environments?

Heavy-duty metal casters perform significantly differently in different environments, requiring careful selection based on the specific application.

In typical industrial environments, metal casters made of steel and cast steel exhibit excellent load-bearing capacity, capable of carrying hundreds to thousands of kilograms, making them suitable for moving heavy equipment. Their wheel treads are highly wear-resistant and wear slowly with frequent rolling on concrete floors. However, rough surfaces can easily produce metal debris, requiring regular cleaning. However, ordinary metals are susceptible to rusting from prolonged contact with oil and moisture, requiring regular application of anti-rust grease for maintenance.

In humid environments, metal casters exhibit generally stable load-bearing performance, but their corrosion resistance is a challenge. Ordinary steel is highly susceptible to rusting in environments with high humidity or corrosive gases (such as at the seaside or in electroplating plants), leading to stalling. Therefore, corrosion-resistant materials such as stainless steel, galvanized steel, or aluminum alloys are recommended. While damp surfaces can reduce some wear, sand embedded in the wheel tread may exacerbate localized wear.

In high-temperature environments, cast iron and special alloy steel casters maintain their load-bearing capacity within the 300-500°C range, but will deform rapidly beyond their softening point. High temperatures can reduce the hardness of some metals, leading to reduced wear resistance. Lubricants also evaporate, necessitating the use of high-temperature-resistant lubricants and regular replacement.

The load-bearing properties of most metals remain unaffected at low temperatures, but ordinary carbon steel can become cold-brittle and easily break under impact, necessitating the use of low-temperature alloy steel. Low temperatures thicken lubricants and increase rolling resistance, necessitating the use of low-temperature-compatible lubricants. Furthermore, increased metal brittleness can cause the wheel tread to crack or break.