Butyl seal strip equipment is specialized production machinery custom-designed for the unique properties of butyl rubber. The core process involves heating and melting solid butyl rubber raw material, which is then extruded under pressure through an extrusion system. The molten material is uniformly applied to a substrate, cooled and set, and finally wound into finished butyl seal strips. The entire process requires careful attention to melting precision, extrusion stability, coating uniformity, and production continuity; any oversight at any stage will compromise the performance of the seal strips. As a professional coating machine manufacturer, Ruian Jiayuan Machinery Co., Ltd. has deepened its expertise in the coating equipment sector over many years, gaining a profound understanding of the melting characteristics of butyl rubber and the requirements of extrusion and coating processes. The butyl sealant strip equipment developed by Jiayuan is fully adapted to the entire production process in terms of structural design and process control, providing reliable support for consistent strip quality. The core architecture of the butyl seal strip equipment is designed around five key stages: “melting, extrusion, coating, cooling, and winding.” Each component functions in coordinated synergy, with no single step being dispensable. First is the heating and melting system, which is critical for converting solid butyl rubber into a fluid state suitable for extrusion and coating. Butyl rubber is prone to aging at high temperatures, exhibits poor flow at low temperatures, and requires maintaining a specific viscosity after melting. Therefore, the heating and melting system must possess precise temperature control capabilities to ensure the rubber is fully melted and has good flowability, while preventing aging and deterioration caused by excessive heat. It must also ensure uniform temperature distribution throughout the melting process, eliminating local overheating or incomplete melting. In the R&D of its heating and melting systems, Ruian Jiayuan Machinery Co., Ltd. prioritizes optimizing temperature control precision and uniformity. Through rational structural design and temperature control module configuration, the company ensures that the butyl rubber remains in an optimal molten state at all times, laying the foundation for subsequent extrusion and coating processes. Following the heating and melting system is the extrusion system. As the critical link between melting and coating, its core function is to pressurize and extrude the molten butyl rubber, forming a uniform rubber flow to provide a stable supply of material for subsequent coating. Pressure control in the extrusion system directly affects the stability and uniformity of the rubber flow. Excessive pressure can lead to overflow and excessive coating thickness, while insufficient pressure can result in poor extrusion and uneven coating. Therefore, the extrusion system must feature precise pressure regulation capabilities, allowing for flexible adjustment of extrusion pressure based on the viscosity of the butyl rubber and coating specifications. This ensures continuous and uniform extrusion without interruptions or overflow. Next is the coating system. As the core component determining the specifications and surface quality of butyl sealant strips, its effectiveness hinges on the design and precision of the coating die, which must work in coordination with the pressure control of the extrusion system and the speed control of the conveying system. The coating die must precisely control the coating thickness and width according to the preset specifications of the butyl sealant strip, while ensuring that the compound delivered from the extrusion system is applied evenly with a smooth surface, free from issues such as missed coating, overflow, or uneven strip edges. To meet the production requirements of different types of butyl sealant strips, the coating die must feature flexible adjustment capabilities to accommodate switching between various specifications. Additionally, the die surface must undergo high-precision polishing to prevent residue and adhesion of the rubber compound, ensuring consistent quality across every batch of sealant strips. The substrate feed speed must be precisely synchronized with the extrusion and coating speeds. Uneven feeding or substrate misalignment can result in inconsistent coating thickness and positional deviations in the butyl sealant strips, thereby affecting the yield rate of finished products. Therefore, the conveying system must feature stable speed control and precise substrate positioning capabilities to ensure the substrate remains flat, wrinkle-free, and aligned during transport, thereby guaranteeing accurate coating. At the same time, the design of the conveying system must accommodate the adaptability of different substrates, ensuring stable conveyance of films, fabrics, or metal coils alike—a key indicator of a professional equipment manufacturer's technical capabilities. The cooling and setting system is a critical stage in the curing and shaping of molten butyl sealant strips. After extrusion and coating, the molten butyl rubber must be rapidly cooled and set to maintain the predetermined specifications and shape; the cooling speed and uniformity directly affect the curing effect and final performance of the sealant strip. Excessively rapid cooling can lead to internal stress concentration in the sealant strip, resulting in cracking and deformation; conversely, excessively slow cooling extends the production cycle, reduces efficiency, and may cause sagging or defects on the strip's surface. Therefore, the cooling and setting system must possess uniform and controllable cooling capabilities, allowing the cooling rate to be adjusted according to the requirements of different specifications of butyl sealant strips to ensure stable performance and consistent dimensions after curing. Rui'an Jiayuan Machinery Co., Ltd. has optimized the design of its cooling and shaping system to address the curing characteristics of butyl rubber, enhancing cooling uniformity and efficiency to prevent issues such as cracking and sagging in the gaskets, thereby ensuring consistent quality of butyl sealing gaskets. The winding process directly impacts the storage, transportation, and subsequent use of the finished product, and the non-stop winding system enables continuous production of butyl sealing gaskets.