Integrated Long-stroke Pultrusion Die

Integrated long-stroke pultrusion die combines the die block, pre-former, and support frame into a single rigid assembly, shown as a long horizontal steel frame with multiple feed stations and a profiled die at the far end. This design is used for producing long, continuous FRP profiles with precise cross-sections.

Assembly Design

The die is mounted on a welded steel frame that maintains alignment between the fiber feed, pre-former, and heated die block. Multiple guide stations along the frame ensure that glass rovings and mat are fed in the correct arrangement before entering the die. The frame also supports the resin feed system and any auxiliary heaters.

Features

• Rigid welded frame maintains die alignment over long production runs.

• Multiple fiber guide stations for accurate roving and mat placement.

• Heated die block with profiled cavity.

• Integrated resin feed and pre-former.

• Adjustable mounting for leveling on the pultrusion line.

Benefits

The integrated design reduces setup time and ensures that the fiber path, pre-former, and die are always aligned. This is critical for complex profiles where even a small misalignment causes fiber distortion, poor surface finish, or web breakage. The long frame also provides space for multiple reinforcement layers to be built up gradually.

Applications

Integrated long-stroke dies are used for production of large structural profiles, custom architectural shapes, and high-performance FRP sections for bridges, cooling towers, and industrial equipment. They are particularly suited to profiles with multiple reinforcement layers or complex cross-sections.

Conclusion

The integrated long-stroke pultrusion die is a complete, aligned system for producing complex FRP profiles. Its rigid frame and multiple guide stations ensure consistent quality from start to finish of a production run.