Regularly, we see questions from our clients on the backend regarding the choice between steel and cast iron gates. Here at Qianjiang Water Conservancy Machinery Factory, we've compiled the pros and cons of both steel and cast iron gates for your reference. As for the cost comparison between gates of the same size, whether steel or cast iron is more expensive is not determinable. Our quotes are based on the current material prices, so for the exact price, please feel free to add our WeChat for inquiry. Prices are subject to fluctuations, and we appreciate your understanding!

In comparison to steel gate gates, cast iron gate frames are equivalent to the embedded parts of steel structure gates, while the gates are akin to the gate leaves of steel gates; most cast iron gates utilize rigid waterstops, commonly referred to as hard waterstops, generally employing copper inserts for waterstop and support surfaces. In contrast, steel structure gates typically use rubber waterstops, supported by sliders or roller wheels; steel structure gates, due to the use of rubber waterstops, are classified as soft waterstops.

Wrought iron gates offer advantages such as a reasonable and sturdy structure, corrosion resistance, good water-sealing, simple installation, and a long service life when compared to steel structures. They feature both single and double water-sealing, with the water-sealing being achieved through precision machining or copper镶铜 sealing. After prolonged use and wear, the sealing surface of the wrought iron gate can be adjusted with wedges to ensure normal operation.

Cast iron gates, compared to welded steel gates, are relatively simpler in structure due to their monolithic casting, which is limited by casting conditions. They can withstand less water pressure and are heavier. Due to their lower cost, cast iron gates are commonly used for gates with smaller aperture sizes, less closing force, and higher corrosion resistance requirements.

Summary:
Steel Sluice Gates: Advantages include light self-weight, high load-bearing capacity, resistance to impact, stable performance and quality, tight water-sealing, simple manufacturing and installation processes, short construction period, easy maintenance, and certain seismic resistance, which can reduce investment in opening and closing equipment.
Flaws: Steel gates have poor corrosion resistance, requiring regular maintenance and have a relatively shorter lifespan.

Wrought Iron Gate: Benefits: Corrosion-resistant, good anti-corrosion performance, one-time installation and molding, low maintenance costs, commonly used for gates with smaller sizes, and operated by screw-type opening and closing machines.
Flaws: Cast iron gate doors are labor-intensive and require substantial machining work. They also have a high self-weight, are expensive, are not shock-resistant, and have poor water-stopping performance.