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Help CenterPA66 Nylon Sleeve for Concrete Sleepers, M24x120mm, 100MPa Tensile, -40°C to 120°C
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Anping County Boli Hardware Wiremesh Products Factory — a trusted manufacturer since 1998 — proudly presents our PA66 Nylon Sleeve for Concrete Sleepers, designed specifically for rail fastening systems. With an annual export value exceeding US$5 million, our products are shipped to over 10 global markets including North America, Europe, Southeast Asia, and Africa. This M24x120mm nylon sleeve combines high tensile strength (100 MPa) and a wide temperature tolerance (-40°C to 120°C), making it a reliable choice for demanding railway infrastructure.
Our PA66 nylon sleeves are engineered to provide superior insulation, vibration damping, and corrosion resistance in concrete sleeper applications. The precision-molded dimensions ensure a snug fit, reducing installation time and maintenance costs. Whether you need standard black sleeves or custom colors, we offer flexible solutions to meet your project requirements.
Key Features
- High-Quality PA66 Material: Offers excellent mechanical strength, wear resistance, and chemical stability, suitable for harsh outdoor environments.
- Precise Dimensions: M24 internal thread diameter and 120mm length, manufactured with strict tolerances for consistent performance.
- Exceptional Tensile Strength: 100 MPa ensures the sleeve can withstand heavy loads and dynamic forces in railway systems.
- Wide Temperature Range: From -40°C to 120°C, ideal for extreme climates from freezing winters to hot summers.
- Corrosion & UV Resistant: PA66 naturally resists moisture, oils, and UV degradation, extending service life.
- Easy Installation: Designed for press-fit or pre-embedded placement in concrete sleepers, compatible with standard rail clips.
- Customizable Options: Available in various colors, with optional surface treatments (e.g., lubricated for easier insertion).
Technical Specifications
| Parameter | Value |
|---|---|
| Material | PA66 (Polyamide 66) |
| Thread Size | M24 |
| Overall Length | 120 mm |
| Tensile Strength | 100 MPa |
| Operating Temperature | -40°C to +120°C |
| Density | 1.14 g/cm³ |
| Water Absorption | ≤ 2.5% (24h immersion) |
| Color | Natural (Black optional) |
Benefits for Your Project
- Enhanced durability: The high tensile strength reduces the risk of cracking or deformation under heavy rail traffic.
- Improved insulation: PA66 acts as an electrical insulator, preventing stray currents from affecting the track system.
- Reduced maintenance: Corrosion resistance eliminates the need for frequent replacements, lowering lifecycle costs.
- Reliable performance in extreme weather: From Siberian cold to desert heat, the sleeve maintains its integrity.
- Compatibility: Works with standard M24 bolts and clips used in concrete sleeper fastening systems worldwide.
Our sleeves are manufactured using advanced injection molding processes, ensuring consistent quality and dimensional accuracy. Each batch undergoes rigorous testing, including tensile strength verification and temperature cycling, to meet the demands of international railway standards.
Trust & Reliability
With over 25 years of manufacturing experience, Anping County Boli Hardware Wiremesh Products Factory has built a reputation for excellence. Our annual export value of US$5–10 million is a testament to the trust placed in us by clients across North America, South America, Europe, Asia, Africa, and Oceania. We ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery worldwide.
We are committed to continuous improvement and customer satisfaction. Our sleeves are designed to meet or exceed industry performance expectations, providing you with a cost-effective solution that doesn't compromise on quality. Contact us today for a quote or to discuss your custom requirements.
Frequently Asked Questions
-
What is the primary application of this PA66 nylon sleeve?
It is specifically designed for use with concrete sleepers (railway ties) to secure rail fastening systems, providing insulation and load distribution. -
Is this sleeve compatible with all M24 bolts?
Yes, the M24 internal thread is standard and compatible with most M24 bolts and clips used in concrete sleeper assemblies. For non-standard threads, custom sizes are available upon request. -
Can the sleeve withstand outdoor UV exposure?
PA66 has inherent UV resistance, but for prolonged direct sunlight, we recommend our black color option which offers enhanced UV stability. -
What is the maximum dynamic load this sleeve can handle?
While the static tensile strength is 100 MPa, dynamic loads depend on the specific application. We provide engineering support to help you determine suitability. -
How is the sleeve installed in concrete sleepers?
It can be either press-fit into pre-drilled holes or embedded during the concrete casting process. Detailed installation instructions are available on request. -
Do you offer samples for testing?
Yes, we can provide samples for evaluation. Please contact our sales team to arrange a sample order. -
What is the typical lead time for bulk orders?
For standard sizes, lead time is 15–25 days after order confirmation, depending on quantity. Custom orders may require additional time. -
Can the sleeve be customized with a different color or logo?
Absolutely. We offer custom colors and can add company logos or part numbers via molding. Minimum order quantities apply for custom options.
For more information or to place an order, please contact us at sales@bolihardware.com. We look forward to partnering with you!
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