We utilize 100% virgin polypropylene (PP) with high-denier yarn weaving. For sand and gravel, our bags feature a fabric weight ranging from 160gsm to 220gsm, ensuring they can withstand the "point load" stress of sharp gravel edges.
Aggregates are often stored in open-air yards. Our custom bags are treated with advanced UV inhibitors (HALS) to ensure structural integrity even after 1,600 hours of intense sunlight exposure, meeting global safety standards.
Whether it is a 1,000kg or 2,000kg requirement, our bags are engineered with a 5:1 or 6:1 Safety Factor. This ensures that every lift on a construction site is protected against catastrophic failure.
We are researching "Closed-Loop" recycling for PP bags. By using PCR (Post-Consumer Resin) without compromising the tensile strength required for heavy gravel, we help construction firms meet their ESG goals.
Integrating RFID and QR code tracking directly into the bag's side-seam. This allows site managers to track the origin, weight, and safety status of sand batches in real-time via mobile apps.
For fine-grade sand, traditional sewing can lead to sifting. Our roadmap includes expanded use of ultrasonic sealing to create a 100% sift-proof environment without the need for additional liners.
In coastal regions, our bags are used to create temporary levees. The high UV resistance and salt-water compatibility make them ideal for sand-filling in marine environments.
In space-constrained cities like New York or Tokyo, gravel cannot be dumped in piles. Our bulk bags allow for vertical lifting via cranes directly to the floor where the material is needed.
For bridge or road construction in remote areas, our foldable, lightweight FIBCs reduce transport costs significantly compared to rigid containers.
ISO 9001 Quality Certified
Safety Lifting Certification
Environmental Management
Zhensheng
