Introduction

In automated warehouses, pallet stretch wrappers perform hundreds of wrapping cycles per shift. While the operation seems simple — just wrapping around a pallet — one roll of high-elongation stretch film can cover several times the area of conventional film. Behind this lies a frequently overlooked technical parameter: elongation rate.

What is Elongation Rate?

      Elongation rate refers to the percentage increase in length a film can achieve before breaking. It is one of the core performance indicators for machine stretch wrap. The higher the elongation rate, the more cargo the same length of film can wrap, which reduces film consumption per pallet.

      What does 500% elongation mean?

      At 500% elongation, 1 meter of film can be stretched to approximately 5 meters in use. This significantly cuts down film consumption per pallet, reduces roll change frequency, improves continuous operation efficiency of equipment and streamlines warehouse operations.

Will High-Elongation Film Tear Easily When Stretched?

      This is a common concern. High elongation is realized through optimized formulation and film structure. Metallocene-modified formulation improves the ductility of molecular chains, while the multi-layer co-extruded structure guarantees puncture resistance. The film can stretch freely and secure loads firmly, balancing toughness and stretchability.

Dual Benefits of Cost Reduction and Efficiency Improvement

      According to enterprise tests, when film performance is fully utilized and waste minimized, the overall packaging cost can be reduced by around 20%. For high-frequency, large-volume automated packaging scenarios, this figure delivers remarkable long-term benefits.

(Elongation rate and cost-saving data are based on enterprise field measurements. Verification with actual batch test reports is recommended.)