Low-Back Hard Plastic Retractable Bleacher Seats | Durable Raw Material Sports Venue Grandstands

The integrated seat and low backrest are injection molded with high-density polyethylene (HDPE) virgin particles. No recycled plastic or inferior materials are used.

The raw material is added with UV stabilizers and anti-aging agents, enabling excellent weather resistance. The seats can withstand temperatures from -55℃ to 100℃, avoiding cracking in winter and soft deformation in summer.

The ergonomic low-back design provides comfortable waist support without blocking sightlines, perfectly suitable for dense tiered grandstand arrangement. The hard plastic surface is compact, waterproof, dust-proof and easy to clean, requiring no complicated maintenance. With strong impact resistance, the seats resist cracking and damage from collision, ball impact and long-term crowd pressure, maintaining stable appearance and structure for more than 10 years.

The entire supporting frame, base, beams and columns adopt Q235 hot-dip galvanized steel pipes. The overall internal and external galvanizing process provides full anti-rust and anti-corrosion protection, suitable for humid environments and outdoor venues.

Thickened pipe walls ensure super load-bearing capacity, with a single seat load over 300KG. The whole structure is stable, firm and shake-proof during full-load seating and frequent retraction. Robot welding and precise calibration ensure long-term structural stability without deformation or loosening.
 

Real-life example
Shengrun Sports
There are nearly 10,000+ real cases each year. Feel free to conduct on-
site investigations to verify!

Overseas Case: Indoor Stadium in Seremban, Negeri Sembilan, Malaysia

We are a professional direct source factory for grandstand seats with complete independent production workshops, including injection molding workshops, steel structure welding workshops, polishing assembly areas and professional quality inspection rooms. All products are 100% self-produced without outsourcing.

Our skilled workers strictly control every production process. In the welding process, every welding point is carefully checked to ensure firm and full welding without missing welding or virtual welding. In the injection molding process, temperature, pressure and cooling time are precisely controlled to ensure uniform thickness, smooth surface and perfect appearance of each low-back seat. During assembly, workers adjust pulley tightness, track parallelism and screw fastening one by one to guarantee smooth expansion, stable structure and silent operation.

Adhering to strict quality standards, our factory never allows defective products to leave the workshop. Every procedure is double-checked manually to ensure high safety, stability and durability for all finished products.