The LJ-KXY Rail Profile Measuring Instrument is primarily designed for measuring and recording cross-sectional wear during rail construction, maintenance, and monitoring. It is widely applicable to various rail transit infrastructure construction, maintenance, and research-related units, including railway bureau engineering departments, rail welding bases, construction engineering companies, subway construction and maintenance parties, and scientific research institutions.

Equipment Components:
1. Main Measurement Rotation Axis 2. Secondary Measurement Rotation Axis 3. Measurement Contact Rotation Axis 4. Main Measurement Rotation Arm 5. Secondary Measurement Rotation Arm
6. Measurement Contact Roller 7. Main Equipment Housing 8. Secondary Equipment Housing 9. Main Base: with Side Fixing Crossbar 10. Main Handle and Connecting Rod: Built-in Backup Battery Compartment
11. Support Telescopic Rod Connection Port 12. Main Rear Cover 13. Bluetooth Antenna Cover and Integrated Indicator Light 14. Main Power Switch
15. Equipment Nameplate 16. Type-C Charging & Communication Port 17. Fixing Crossbar Magnet 18. Main Base Magnet 19. Measurement Contact Roller Magnet

Specifications:
Measurement Function Various standard rail cross-sectional profiles Battery Capacity 2x3.7v L-ION/12800mAh
Horizontal Resolution 500-800 points/cross-section Bluetooth Standby Time 100 hours (>500 measurements)
Measurement Accuracy ± 10μm No-operation Shutdown Time 10 minutes
Repeatability ±2.5μm Protection Rating IP65
Collection Points >10,000 points/rail head Operating Temperature -30℃ to +60℃
Scanning Time <5 seconds Rail Operating Temperature -40℃ to +80℃
Processing Time <2 seconds Humidity Requirement <90%
Profile File Size 10-30kB/cross-section Charging Interface Type-C
Net Weight 1.15KG Communication Interface
Main Dimensions 135mm x 45mm x 100mm Positioning Module GPS/BeiDou
Application Areas:
1. Railway Track Inspection: Used in daily railway maintenance and inspection to detect rail wear and deformation, ensuring the safety and stability of railway transportation.
2. Rail Manufacturing: During rail production, it performs profile inspections on newly manufactured rails to ensure product quality meets standard requirements.
3. Railway Construction: During the track laying process of new railways, it is used to inspect and adjust rail installation accuracy, ensuring track smoothness and stability.