Hollow Blow-molded Grandstand Seats

Hollow Blow-molded Grandstand Seats

This hollow blow-molded grandstand seat is independently developed and manufactured by Shengrun Sports original factory. It is integrally blow molded from brand-new virgin HDPE raw material, specially designed for stadiums, indoor gymnasiums, basketball courts, school playgrounds, auditoriums, theaters and outdoor event bleachers. With integrated seamless molding, the seats feature excellent anti-corrosion, wear resistance, UV stability, high temperature resistance and long-lasting anti-fading performance. Ergonomic design brings superior sitting comfort, with easy installation and low maintenance. Custom colors and fixed & retractable bleacher mounting solutions are available, widely applicable for venue and engineering projects worldwide.
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Product Introduction

Our premium blow-molded grandstand spectator seats are elaborately upgraded to completely elevate audience sitting comfort and maximize venue durability.

Specially engineered for high-footfall, heavy-duty and high-frequency use scenarios, these seats feature an ultra-strong, stable structure paired with ergonomic streamlined aesthetic design.

From world-class top professional stadiums to local school indoor gymnasiums, this seating system delivers consistently outstanding long-term performance, remaining beautiful and brand-new-looking for years to come.

 

 

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Premium Raw Material & One-piece Blow Molding Craft

The seats are made of 100% virgin HDPE raw material, with no recycled mixed plastic used. Adopting large-scale hollow blow molding equipment for one-piece integral forming, the seat has no splicing gaps and no weak welding points, delivering far better overall toughness than ordinary injection-molded seats.

Imported UV stabilizers, antioxidants and weather-resistant color masterbatch are fully added into the raw materials during production. The color runs through the whole body of the seat instead of only surface spraying. It fundamentally solves the problems of fading, chalking, cracking and embrittlement caused by long-term outdoor sunlight exposure, rain erosion, humidity and temperature difference. The appearance and performance can remain stable for 8 to 10 years under normal outdoor use, greatly reducing later replacement and maintenance costs.

 

 

 

5Core Outstanding Advantages

1. Super Anti-corrosion & Wear Resistance: Dense closed surface, waterproof, dirt-proof, resistant to rain, salt and moisture corrosion. Special anti-slip texture on surface, hard to scratch and wear even under frequent heavy crowd use.
2. All Weather Extreme Resistance: Stable performance from -55℃ to +100℃. Will not soften or discolor under high temperature in summer; no cracking or hardening in cold winter, perfect for both indoor and outdoor use.
3. Ergonomic Comfort Design: Backrest perfectly fits human waist and back curve with scientific tilt angle, effectively release sitting pressure, no soreness even after long-time seating, greatly improve spectator experience.
4. High Stability & Load Bearing: Static load capacity over 300kg per seat, excellent impact and pressure resistance.
5.Zero Maintenance & Easy Cleaning: One-piece smooth dead-angle free design, easy to clean with just water and mild detergent. No dust hiding, no water accumulation and no mildew growth, minimal daily care required.

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Wide Application & Flexible Installation
 

Custom layout available for any venue size and irregular space.

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✅ Professional Sports Venues:

 Basketball courts, badminton halls, football stadiums, athletics fields, multi-purpose gyms, indoor training halls

 

✅ Education & Public Places:

 School playgrounds, universities, colleges, lecture halls, auditoriums, conference rooms

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✅ Commercial & Entertainment Venues:

 Theaters, performance halls, cinemas, exhibition centers, esports stadiums, scenic viewing stands

 

✅ Custom Special Scenarios:

 Military camps, government units, temporary event bleachers, outdoor open-air activity venues

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✅ Dimensions & Specifications

Overall dimension: 420×460×310mm.With ample seat depth and highly supportive backrest, you will feel no fatigue even after long hours of sitting for watching matches, assemblies and performances.

✅ Multiple Color Options
Standard in-stock colors: Red, Yellow, Orange, Blue, Green.
Custom exclusive venue colors are also available, perfectly matching the overall VI style of schools, stadiums, government and enterprise venues. Low MOQ for bulk custom color orders.

✅ Customization Services

1. Size Customization: Dimensions can be fine adjusted according to bleacher tread depth, row spacing and platform height, to perfectly fit the on-site installation.
2. Appearance Customization: Silk-screen printing of school logos, brand marks, texts and patterns on the seat surface is supported.
3. Accessory Customization: Optional add-ons including cup holders, armrests and writing tablets, to meet special demands of lecture halls and stepped classrooms.

 

 

 

Real-life example.
--Shengrun Sports--

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

                                                         Exclusive Grandstand Seats for Events in Dahu Chen Village, Shandong Province 

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Our skilled workers carry out elaborate operations throughout the whole production process. From raw material screening, integrated blow molding, precision polishing to quality inspection and packaging, every single process is strictly controlled. Workers focus on polishing every detail, follow strict production standards, and manufacture every grandstand seat with dedication. All defects and errors are strictly eliminated, only to deliver high-quality, durable and reliable products.

 

Mass products in stock for immediate delivery. Standard seats in regular colors and sizes are always in ample inventory. No long waiting time needed, we arrange packing and shipment right after your order, with high shipping efficiency and stable lead time. Urgent orders and large engineering project orders can get priority production & arrangement, fast delivery greatly saves your waiting time.

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