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Home > Transportation > Elevator & Funicular Car > Parts for Elevator & Funicular Car > Rail-to-Sleeper Fastening System, Double Spring Washer, 16mm Diameter, 30kN Preload, Mill Test Report Provided
Rail-to-Sleeper Fastening System, Double Spring Washer, 16mm Diameter, 30kN Preload, Mill Test Report Provided
Product Spotlights
This double spring washer fastening system delivers a consistent 30kN preload to secure rails to sleepers, reducing maintenance and enhancing safety. The 16mm diameter fits standard interfaces, and each shipment includes a mill test report for full traceability. Manufactured by a reliable factory since 1998, it offers customizable options and global shipping.
Negotiable
MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Type:
Other, Double Spring Washer
Diameter:
16mm
Preload:
30kN
Payment & Shipping
Payment Methods:
Port of Shipment:
tianjin shanghai qingdao
Delivery Detail:
Delivery time depends on order quantity.
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Type
Other, Double Spring Washer
Diameter
16mm
Preload
30kN
Material
Spring Steel
Application
Railway Fastening
Standard
Customizable (DIN/AREMA compatible)
Surface Treatment
Black Oxide / Zinc Plated (optional)
Packing
Pallets / Bundles
Anping County Boli Hardware Wiremesh Products Factory, established in 1998 with an annual export value of US$5–10 million, proudly presents our Rail-to-Sleeper Fastening System featuring a Double Spring Washer, 16mm Diameter, 30kN Preload. This system is engineered to deliver reliable and consistent clamping force for railway tracks, ensuring durability and safety in demanding environments. With a dedicated manufacturing facility in Hengshui, Hebei, and shipment ports including Tianjin, Qingdao, and Shanghai, we serve global markets from North America to Southeast Asia, providing high-quality railway components backed by a Mill Test Report for every batch.
Our double spring washer design is specifically optimized to maintain a stable 30kN preload, reducing the risk of loosening under dynamic loads and vibrations. The 16mm diameter fits standard rail-to-sleeper interfaces, and the system is compatible with various rail profiles and sleeper types. By combining advanced manufacturing techniques with rigorous quality control, we ensure that each fastener meets the mechanical requirements for long-term service life.
Key Features & Technical Specifications
- Double Spring Washer Design: Two interconnected spring washers work in tandem to provide enhanced elasticity and consistent clamping force, compensating for rail wear and thermal expansion.
- 16mm Diameter: Standardized dimension for easy integration with existing rail fastening systems, reduces installation time and inventory complexity.
- 30kN Preload: Delivers a precisely controlled clamping force of 30 kilonewtons, ensuring secure rail fixation without overstressing components.
- Mill Test Report Included: Each shipment is accompanied by a certified mill test report verifying material composition, mechanical properties, and preload accuracy, giving you full traceability.
- High-Quality Spring Steel: Manufactured from premium spring steel with excellent fatigue resistance and corrosion protection options (black oxide or zinc plating on request).
- Customizable Standards: Available in configurations compatible with DIN, AREMA, or other regional standards – simply specify your requirements.
| Parameter | Value |
|---|---|
| Diameter | 16 mm |
| Preload | 30 kN |
| Washer Type | Double Spring Washer |
| Material | Spring Steel (60Si2Mn or equivalent) |
| Surface Treatment | Black Oxide / Zinc Plating (optional) |
| Applicable Rail Type | Standard UIC, AREMA, DIN rails |
| Test Report | Mill Test Report (provided) |
Benefits for Your Operation
- Enhanced Safety: The double spring washer maintains consistent preload, reducing the risk of rail creep or fastener loosening, which is critical for high-speed and heavy-haul lines.
- Reduced Maintenance: With a 30kN preload, the system stays tight for longer periods, minimizing inspection intervals and replacement costs.
- Flexibility: Works with both concrete and wooden sleepers, making it suitable for new constructions and retrofitting projects.
- Quality Assurance: Every batch is tested and accompanied by a mill test report, so you can verify compliance with your project specifications.
- Cost-Effective: Direct factory pricing from a manufacturer with 25+ years of experience, offering competitive rates without compromising quality.
At Anping County Boli Hardware Wiremesh Products Factory, we have been serving the railway industry since 1998, exporting over US$5 million worth of hardware annually to markets across North America, South America, Europe, Asia, Africa, and Oceania. Our rail-to-sleeper fastening system is manufactured in our own facility in Hengshui, Hebei, and shipped through major ports including Tianjin, Qingdao, Shanghai, and Foshan. We invite you to request a sample or a detailed quotation. Our team is ready to provide technical support and customized solutions for your specific rail fastening needs. Contact us today to discuss your project requirements and experience the reliability of our products.
Frequently Asked Questions
-
What is the exact material of the spring washer?
The washers are made from high-quality spring steel (typically 60Si2Mn or equivalent), which offers excellent elasticity and fatigue strength. The exact grade can be confirmed in the mill test report. -
Is the 30kN preload adjustable?
The preload is designed to be 30kN under standard installation torque. However, we can customize the washer dimensions or material to achieve different preload values – please discuss with our engineering team. -
Do you provide the mill test report for every shipment?
Yes, each shipment includes a mill test report that covers chemical composition, mechanical properties, and preload verification. This is part of our standard quality control. -
Can this system be used with high-speed rail applications?
Yes, the double spring washer design is suitable for high-speed lines because it maintains consistent clamping force under dynamic loads. However, we recommend checking specific local standards. -
What surface treatments are available?
We offer black oxide, zinc plating, and other coatings upon request. The standard treatment is black oxide, which provides good corrosion resistance for indoor or moderate environments. -
What is the minimum order quantity (MOQ)?
Our MOQ is typically 500 sets, but we can accommodate smaller trial orders for first-time customers. Please contact us for details. -
How long does shipping take?
Shipping time depends on the destination and port. For example, from Tianjin to North America, it usually takes 25–35 days by sea. We can also arrange air freight for urgent orders. -
Can you provide a sample before bulk order?
Yes, samples are available for a nominal fee, which is refundable upon bulk order. We encourage you to test the product in your own environment.
Send Inquiry to This Supplier
Mr. Geng Xiaozhong
Sales Manager
2Yrs
Hengshui, Hebei, China
2Yrs
Business Type
Manufacturer
Year Established
1998
Annual Export Value
US$5 Million - US$10 Million
Port of Shipment
Tianjin, Qingdao, qingdao, shanghai, foshan
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