LSZH Compounds & Materials for Railway
- Special material accessories for railway locomotives: 125℃~150℃, meeting EN50264 standard wall/EN50306 thin wall.
- The internal cable material of high-speed trains is 125℃-150℃, in line with ISO6722 standard wall/thin-wall automotive wires, very scratch-resistant and friction-resistant, and meets 3000h long-term guide aging.
Product Detailed Specifications
Appearance
Form: Granules/Pellets for extrusion or molding
Color: Standard black, white, gray, or custom colors
Standards: EN 45545, IEC 60332, ISO 6722
Customization: Flame retardancy, mechanical strength, or temperature resistance ratings can be customized to meet specific railway system requirements.
Technical Parameters
| Property | Typical Value | Description |
| Density | 1.40–1.55g/cm³ | Standard bulk density of LSZH compound granules |
| Operating Temperature | 75–90°C | Continuous service temperature range |
| Dielectric Strength | 20–30kV/mm | Electrical insulation performance |
| Smoke Emission | Very Low | Measured according to IEC 6103 |
| Halogen Content | zero | Zero halogen release during combustion |
| Tensile Strength | 15–25MPa | Mechanical strength under tension |
| Elongation at Break | 200–300% | Flexibility and ductility |
Product Feature
Low Smoke & Halogen-Free: Emitting low smoke and halogen-free in the event of a fire, ensuring breathable air.
Flame Retardant: Complies with EN 45545 and IEC 60332 standards, providing reliable flame retardancy.
High Mechanical Strength: High tensile strength and abrasion resistance, capable of withstanding the tensile friction experienced in rail transportation.
Chemical & Oil Resistance: Resists corrosion from grease, lubricants, and common cleaning agents, ensuring a long service life.
Application
The material is suitable for the production of fire-resistant cable insulation in tunnels and confined spaces, including insulation materials for control and communication cables on board vehicles. It can also be used to customize railway components such as connectors and housings.
Flame Retardant Solutions for Railway Industry
Fire safety, smoke control, and halogen-free performance are crucial in the demanding environments of the railway industry, and ZMS advanced polymer compounds set the industry benchmark. Our flame-retardant materials are specifically designed for rail vehicle cables, control systems, interior components, and infrastructure wiring, providing reliable protection when it matters most.
Designed for vibration, temperature, and motion – Our compounds maintain mechanical integrity despite the constant motion, vibration, and extreme temperatures common in high-speed, metro, and light rail vehicles.
Optimized for rail cable systems and accessories – Whether for power cables, signal lines, internal wiring harnesses, or external conduits, our flame-retardant polymers provide consistent insulation, jacketing, and sheathing performance.
Typical Rail Applications
High-voltage and control cables for traction systems; Internal wiring harnesses for train cars and corridors; Door, window, and carriage sealing components requiring fire-resistant elastomers; Cable joints, connectors, and protective sleeves in tunnels and confined spaces; Infrastructure wiring, such as stations, tunnels, and platforms, where fire-resistant materials are essential.
Why choose our solutions?
We combine decades of polymer engineering experience with in-depth rail industry knowledge. Each batch is tested for flame retardancy, smoke emissions, mechanical strength, and environmental compatibility. We offer custom colors, formulations, and packaging to match your production line, specifications, and project standards.
Choose our rail-grade flame retardant compounds for performance, safety, and compliance.
ZMS Material Services & Logistics
Professional Technical Support
ZMS’s experienced materials engineers provide guidance on compound selection, cable insulation design, and custom formulations for various grades. We ensure that every batch meets your electrical, mechanical, and fire safety requirements.
Quality Assurance & After-Sales Service
Each batch of material pellets undergoes rigorous quality control, including density, dielectric strength, and flame retardancy testing. Our after-sales team is available to provide consultation, troubleshooting, and replacement services if necessary.
Customized Packaging Solutions
ZMS Material compounds are supplied in pellet or granular form and are typically packaged in moisture-proof polyethylene bags, kraft paper drums, or plastic drums. We can also provide custom packaging with custom graphics to protect the integrity of the material during transportation and storage.
Flexible Shipping & Delivery
We work with reliable logistics partners to offer global shipping services, including container, pallet, or bulk shipping. Dedicated personnel and meticulously planned shipping procedures prevent moisture, heat, or mechanical damage, ensuring the compound arrives in optimal condition.