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RCI TW Track Geometry Inspection Trolley
Detail Information
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
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 | |||||||||||||||
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
Frequently Asked Questions
What is this product used for?
The RCI TW dual-sensor track geometry trolley combines a contact measuring wheel with an optical encoder to record gauge, level, alignment and twist, and can be set to several track gauges.
What are the key specifications?
Key specifications: weight ≤26 kg; Product Type Dual-Sensor (Trolley + Wheel) Rail Track Inspection Trolley; Measurement Principle Contact wheel + optical encoder + inertial backup.
Which defects is the twin-sensor survey built for?
Short-wave defects under 3 m - corrugation, squats and dipped welds that longer-chord systems tend to smooth over.
Can the survey data be exported into our asset system?
Yes. Reports export as PDF plus CSV or Excel for TQI, geometry and defect records, so results drop straight into your maintenance database.
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