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ProductsAt present, the company has the ability to produce 50000 tons of rail buckle accessories annually. The product series includes various specifications of spring bars Gauge baffles, switch special pads, joint clamps for 43kg, 50kg, 60kg steel rails, various export products, etc
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AboutThe company was established in 1994 and is a production enterprise specializing in the research and development, production, and sales of railway line specific accessories
Certified Performance Excellence
⚡ 1,200 MPa Ultimate Tensile Strength (Exceeds AREMA 4-2-21)
⚡ Zero Vibration Loosening Guarantee (5M+ Dynamic Load Cycles)
⚡ -58°F Arctic Certification (ASTM A320 L7 Compliance)
⚡ Magnetic Particle + Ultrasonic Inspection
⚡ FRA §213.109 + TC Transport Canada Compliant
Technical Specifications
| Parameter | Specification |
|---|---|
| Standard | ASTM A325M Type 3 / EN 14399-6 |
| Material | 42CrMo4 Vacuum Degassed Steel |
| Strength Class | 10.9 (ISO 898-1) |
| Proof Load | 830 MPa |
| Surface Treatment | Hot-Dip Galvanized (90μm) + Blue Passivate |
| Thread Tolerance | 6g per ISO 965-1 |
| Impact Toughness | 55J @ -58°F (-50°C) |
| Traceability | Laser-Etched QR Code per Bolt Head |
Corrosion Defense Protocol
| Layer | Technology | Performance Data |
|---|---|---|
| Base Metal | Chromium-Molybdenum Alloy | 3.5% Cr content for passivity |
| Zinc Barrier | HDG 90μm min | 1,500hrs salt spray (ASTM B117) |
| Sealant | Blue Chromate Conversion | <0.1mg/cm²/year corrosion rate |
Rail Application Matrix
| Component | Bolt Size | Torque Spec | Installation Tool |
|---|---|---|---|
| Joint Bars | M24 x 140mm | 620±50 N·m | Hydraulic Pulse Wrench |
| Concrete Sleeper Clips | M30 x 160mm | 1,100±80 N·m | Torque Multiplier |
| Switch Crossings | M20 x 120mm | 340±30 N·m | Calibrated Impact Wrench |
FAQ
Q: Maximum re-use cycles?
A: 5x for mainline / 8x for yard tracks (After MPI inspection)
Q: HS Code for Mexico shipments?
A: 7318.15.99 (Railway track fixtures)
Q: Calibration certificate for torque tools?
A: Provided with every 5,000 bolts (NIST-traceable)
Tag:
Grade 10.9 Track Bolts - Vibration-Proof Rail Fastening System with Tri-Lock™ Technology
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Henan Xinda Railway Equipment Co., Ltd
Fax: +86-372-2615999
Tel: +86-18567891234
Email:info@xindarail.com
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