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K Type Fastening System
System Overview The K Type Fastening System is a robust, low-maintenance rail fastening solution designed for heavy-haul and high-speed railway applications. This system features a unique spring clip design that provides consistent clamping force while accommodating thermal expansion and dynamic...
Features
System Overview
The K Type Fastening System is a robust, low-maintenance rail fastening solution designed for heavy-haul and high-speed railway applications. This system features a unique spring clip design that provides consistent clamping force while accommodating thermal expansion and dynamic loads.
Large enterprise scale
wide application of technology
high-quality customized services
High quality
advanced equipmen
professional team
one-stop solution
Key Components
K Type Elastic Rail Clip
Material: 60Si7CrV high-carbon spring steel
Tension Force: 10-12 kN
Hardness: 44-48 HRC
Temperature Range: -40°C to +80°C
Design Life: 15+ million load cycles
Cast Iron Shoulder
Grade: EN-GJS-500-7
Lateral Load Capacity: 25 kN
Surface Treatment: Zinc-rich epoxy coating
Embedment Depth: 120mm (concrete sleepers)
Intermediate Components
Rail Pad: EPDM or PUR elastomer (10mm thickness)
Insulator: Glass-fiber reinforced nylon
Shoulder Screw: 8.8 grade steel with Dacromet coating
Technical Specifications
| Parameter | Specification |
|---|---|
| Gauge retention | ±1.5mm under 25t axle load |
| Clip installation force | 12±1 kN |
| Longitudinal resistance | ≥9 kN per fastening |
| Electrical resistance | >5Ω (insulated version) |
| Corrosion resistance | 1000h salt spray test |
Verify sleeper shoulder condition (no spalling)
Clean rail foot and seating surfaces
Check rail inclination (1:20 or 1:40)
Place rail pad on sleeper shoulder
Position rail with correct cant
Install insulators (if required)
Place K clip in applicator tool
Manual Method:
Position tool at 45° angle
Apply steady pressure until audible "click"
Verify full toe engagement
Mechanical Method:
Set hydraulic pressure to 12 kN
Engage until auto-release
Check uniform deflection
Measure clip deflection (8-10mm typical)
Check rail freedom (0.5-1mm vertical movement)
Verify gauge (1435mm ±1mm)
Competitive advantage
Superior Fatigue Resistance
2× lifespan vs standard clips
01
Consistent Clamping Force
±5% variation over 10 years
02
Vibration Damping
Reduces ballast degradation by 30%
03
Easy Maintenance
Single-tool installation/removal
04
Theft-Resistant
Special tool required for removal
05
Lead times: 3-4 weeks standard, 6-8 weeks for custom orders
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