Flat-top Chains Series Type U

Choosing the right Sideflexing Stainless Steel Flat-Top Chain (Type "U" Series) is critical to ensure stable, efficient operation in curved and multi-directional conveyor lines. This series is designed with a unique bevel-shoe "U" structure, enabling smooth side-flex movement while maintaining product stability. Below is a guide to selecting the ideal model based on your application requirements.

First, define the conveyor layout and curve radius. Type "U" chains are engineered for flexible movement, but each model has a minimum sideflex radius. For tight curves (e.g., 90° turns with 460 mm radius), select our 881 series models, which offer balanced flexibility and strength. Wider chains 𝑒.𝑔.,152.4𝑚𝑚/190.5𝑚𝑚 suit larger products but require larger radii to avoid wear, while narrower widths 82.6𝑚𝑚/101.6𝑚𝑚 are ideal for compact lines with moderate curves.

Next, match the load capacity and product size. The chain width directly determines the maximum load and footprint it can support. For small, light items like bottles or cans, choose widths of 82.6–114.3 mm. For larger containers or heavier packages, opt for 152.4 mm or 190.5 mm models. Additionally, confirm the average working load (typically 5400–5600 N for standard 881 series) to ensure it exceeds your application's peak tension.

Then, select the appropriate stainless steel material grade. Martensitic SUS420 offers high hardness and wear resistance for high-speed, dry lines. Ferritic SUS430 is a cost-effective choice for general food and packaging applications. For wet, washdown or acidic environments, austenitic SUS304 is recommended for superior corrosion resistance.

Finally, consider surface finish and hygiene requirements. The surface roughness (Ra 0.4–0.8) affects ease of cleaning and product stability. For food-grade or pharmaceutical use, choose models with lower Ra values and smooth, burr-free surfaces.

With a wide range of widths, materials, and configurations, our Type "U" sideflexing flat-top chains ensure optimal performance in every curved conveying application.