Qingdao Sheng Hai Si Tong New Material Co., Ltd.
| Installation type | Strap-on with adjustable buckles |
| Packaging Details | Carton or Wooden Case Export Packaging |
| Cleaning method | Removable cover, machine washable |
| Support type | Lumbar and upper back support |
| Dimensions | 45cm x 50cm x 10cm |
| Additional features | Breathable fabric, anti-slip backing |
| Water resistance | Water-resistant cover |
| Payment Terms | L/C,T/T,Western Union |
| Durability | High durability with reinforced stitching |
| Delivery Time | 5-15 work days |
| Supply Ability | 5000 |
| Warranty | 2 years manufacturer warranty |
| Material | High-density foam with fabric or leather cover |
| Place of Origin | China |
| Certification | EN45545 |
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Product Specification
| Installation type | Strap-on with adjustable buckles | Packaging Details | Carton or Wooden Case Export Packaging |
| Cleaning method | Removable cover, machine washable | Support type | Lumbar and upper back support |
| Dimensions | 45cm x 50cm x 10cm | Additional features | Breathable fabric, anti-slip backing |
| Water resistance | Water-resistant cover | Payment Terms | L/C,T/T,Western Union |
| Durability | High durability with reinforced stitching | Delivery Time | 5-15 work days |
| Supply Ability | 5000 | Warranty | 2 years manufacturer warranty |
| Material | High-density foam with fabric or leather cover | Place of Origin | China |
| Certification | EN45545 | ||
| High Light | Lightweight Seat Back ，SMC Seat Backrest ，Seat Backrest Eco Friendly | ||
SMC Lightweight and Eco-Friendly High-Speed Rail Seat Backrest
1. Product Overview
This high-speed train seat backrest is manufactured from Sheet Molding Compound (SMC), formed via high-temperature and high-pressure compression molding. Designed specifically for rail transit scenarios, it serves as a core structural component of high-speed train seating systems, meeting the strictest industry standards for structural strength, flame retardancy, durability, and lightweight performance.
The backrest features an ergonomic design with smooth, rounded edges and a seamless surface finish, eliminating sharp corners and potential safety hazards. Precisely engineered mounting holes and interface cutouts ensure compatibility with mainstream high-speed train seat systems, while custom options for shape, cutouts, and surface finishes are available to meet diverse vehicle requirements.
2. Core Advantages of SMC Material
| Dimension | SMC High-Speed Train Seat Backrest | Traditional Metal / ABS Seat Backrest | Competitive Advantage |
|---|---|---|---|
| Material Density | 1.7–2.0 g/cm³ | Steel: ~7.8 g/cm³; ABS: ~1.0–1.1 g/cm³ | 75% lighter than steel; balances lightweight design with far higher structural strength than pure plastics |
| Mechanical Strength | Excellent flexural, impact, and fatigue resistance | Metal: High strength but prone to corrosion; ABS: Low strength, prone to deformation | Matches metal strength while offering plastic-like corrosion and impact resistance |
| Flame Retardancy | High flame resistance, low smoke & low toxicity | ABS: Poor flame resistance, releases toxic fumes when burned | Fully meets rail transit fire safety standards, ensuring passenger safety in emergencies |
| Environmental Stability | Resistant to temperature changes, humidity, and chemicals; no warping or fading | Metal: Prone to rust and corrosion; ABS: Prone to aging, brittleness, and discoloration | Maintains structural and aesthetic performance under harsh operating conditions |
| Manufacturing Process | Single-step compression molding; complex geometries formed in one piece | Metal: Requires welding/assembly; ABS: Injection molding with visible seams | Seamless construction eliminates weak points, improving overall structural integrity |
| Surface Quality & Maintenance | Smooth, uniform surface; easy to clean and paint; resistant to scratches | Metal: Prone to scratches, rust, and paint chipping; ABS: Prone to scuffs and wear | Retains a premium appearance with minimal maintenance; supports custom finishes |
| Environmental Performance | No formaldehyde or heavy metals; low VOC emissions | Some ABS grades contain harmful additives; metal production has high carbon footprint | Supports a healthy cabin environment and sustainable manufacturing practices |
Company Details
Business Type:
Manufacturer
Year Established:
2016
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Qingdao Shenghai Sitong New Material Co., Ltd. (abbreviation: SHST) specializes in manufacturing molded products of composite materials including SMC, LFT-D and BMC. Our main products cover R&D and production of SMC integrated bathroom, SMC auto parts, high-speed rail accessories and carbon fib... Qingdao Shenghai Sitong New Material Co., Ltd. (abbreviation: SHST) specializes in manufacturing molded products of composite materials including SMC, LFT-D and BMC. Our main products cover R&D and production of SMC integrated bathroom, SMC auto parts, high-speed rail accessories and carbon fib...
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