Product Overview
The Railway Turnout Spacer Block is a key positioning and connection component used in railway turnout systems.
It is primarily used to maintain track gauge accuracy, fix rail spacing, and ensure stable operation of the turnout switching mechanism. The component is continuously subjected to repeated train impact loads, vibration loads, and harsh environmental conditions, requiring extremely high standards in dimensional accuracy, strength, and wear resistance.
With over 40 years of railway casting manufacturing experience, Sangroove (Jiangsu) Machinery Co., Ltd. specializes in producing turnout spacer blocks, rail connection components, braking system castings, and railway structural castings for global rail infrastructure OEM customers.

Manufacturing Process
- Structural Design Optimization & Process Engineering
- Mold Development & Manufacturing
- Coated Sand Precision Casting
- Resin Sand Casting
- Clay Sand Casting
- Induction Furnace Melting & Composition Control
- Heat Treatment Strengthening
- CNC Precision Machining
- Drilling & Mounting Surface Machining
- Dimensional Inspection
- UT/MT Non-Destructive Testing
- Final Performance Testing
Technical Specifications
| Product Name | Railway Turnout Spacer Block |
| Material | QT450-10, QT500-7 |
| Optional Materials | QT600-3, ZG310-570 |
| Weight Range | 1–50 kg |
| Casting Processes | Coated Sand / Resin Sand / Clay Sand Casting |
| Heat Treatment | Normalizing |
| Surface Treatment | Anti-Rust Oil / Painting |
| Inspection Standards | UT, MT, Dimensional Inspection |
| Application System | Railway Turnout Systems |
Product Advantages
• High Precision Dimensional Control for Track Gauge Stability
• Excellent Impact Resistance under Heavy Train Loads
• Superior Wear Resistance for Long-Term Operation
• Stable Batch Consistency for Mass Production
• OEM Custom Development Capability
Customer Benefits
• Improved railway operational safety
• Extended service life of turnout systems
• Reduced maintenance and replacement frequency
• Improved construction and installation efficiency
• Reliable supply for railway infrastructure projects


Why Choose Sangroove
40+ Years of Railway Casting Experience
Four Major Casting Processes: Lost Foam, Resin Sand, Coated Sand, Clay Sand
One-Stop Manufacturing from Mold Development to Final Machining
Certified to IATF16949, ISO14001, ISO45001, ISO10012 and ISO50001
Advanced Inspection Equipment: Spectrometer, CMM, UT/MT, X-ray Testing Systems
Annual Capacity Over 100,000 Tons for Large Infrastructure Projects
Applications
• High-Speed Railway Turnout Systems
• Conventional Railway Networks
• Urban Rail Transit
• Metro Systems
• Heavy Haul Railways
• Railway Maintenance Engineering





