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Track Geometry Inspection Trolley RCI TW: Dual-Sensor Rail | High-Resolution Short-Wave Survey

Track Geometry Inspection Trolley RCI TW: Dual-Sensor Rail | High-Resolution Short-Wave Survey
Track Geometry Inspection Trolley RCI TW: Dual-Sensor Rail | High-Resolution Short-Wave SurveyTrack Geometry Inspection Trolley RCI TW: Dual-Sensor Rail | High-Resolution Short-Wave SurveyTrack Geometry Inspection Trolley RCI TW: Dual-Sensor Rail | High-Resolution Short-Wave Survey
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CategoriesTrack Geometry Measurement Tools
BrandRailway Maintenance Equipment & Solutions
ModelRCI TW
Product TypeDual-Sensor (Trolley + Wheel) Rail Track Inspection Trolley
Measurement PrincipleContact wheel + optical encoder + inertial backup
weight≤26 kg
Detail Information
Track Geometry System

Overview

The RCI TW utilizes a dual-wheel contact system with high-precision optical encoders and redundant inertial sensing to capture sub-millimeter variations in track geometry. Its low-speed operation (1–2 km/h) enables detection of short-wave irregularities (wavelength < 3 m) critical for ride quality on high-speed lines. The trolley measures gauge, superelevation, twist, alignment, profile, and versine with consistent ±0.30 mm accuracy on gauge and superelevation. Data is synchronized with sleeper numbering for precise defect localization. Suitable for post-construction verification, weld zone inspection, and pre-tamping baseline surveys.

Key Components

The GNSS‑based railway track inspection system comprises the following components:

T‑shaped trolley – integrated with an Inertial Measurement System (IMS)
● Inertial Measurement System (IMS) – provides core inertial measurements
● Ruggedized military‑grade laptop computer – runs data acquisition and analysis software
● Data acquisition and analysis software – handles track data collection and processing
● High‑precision total station – includes a tripod and a data transmission radio
● Dedicated ballastless track fine‑adjustment software – enables comprehensive track evaluation and optimization

Track Geometry System

RCI Series Track Geometry Inspection Trolley – Technical Specifications

Type
RCI INS(Inertial)Track Inspection Trolley
RCI GNSSTrack Inspection Trolley
RCI TWTrack Inspection Trolley
RCI GJY-TW-RB-1 (Class 0 Relative)Track Inspection Trolley
RCI GJY-T-4A (Class 1 Relative)Track Inspection Trolley
Main
Parameter
Gauge
±0.30 mm
±0.30 mm
±0.30 mm
±0.30 mm
±0.50 mm
Superelevation
±0.30 mm
±0.30 mm
±0.30 mm
±0.30 mm
±0.50 mm
Twist 
±0.50 mm
±0.50 mm
±0.50 mm
±0.50 mm
±0.70 mm
Alignment & Profile
±0.70 mm
±0.70 mm
±0.70 mm
±0.70 mm
±0.10 mm
Versine
±1.00 mm
±0.10 mm
±0.10 mm
±0.10 mm
±0.10 mm
Alignment & Profile (30m)
±0.70 mm
±0.70 mm
±0.70 mm
±0.70 mm
Alignment & Profile (300m)
±3.00 mm
±3.00 mm
±3.00 mm
±3.00 mm
Lateral Deviation
±3.00 mm
±3.00 mm
Vertical Deviation
±2.50 mm
±2.50 mm
Mileage
±0.10%
±0.10%
±0.10%
±0.10%
±0.10%
Measurement Efficiency
1.5–3 km/h
4–5 km/h
1–2 km/h
4–6 km/h
4–6 km/h
Track Geometry System

Application Scopes

⚪ Measurement of internal track parameters and external alignment parameters (both plane and elevation) on lines established based on CPIII control networks or fixed peg control networks.
⚪ Performing long-wave fine adjustment of ballastless tracks based on CPIII control networks or fixed peg control networks.

Technical Specifications  

Sensor Type: Contact wheel + optical encoder + MEMS IMU  
● Power: Internal 24V Li-ion  
● Weight: ≤26 kg  
● Dimensions: 0.60 × 0.30 × 0.88 m  
● IP Rating: IP54  
● Temp Range: –25 °C to +45 °C
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