Fast, dynamic weighing of solid and liquid cargo with the best accuracy
Scalex Trapper DRS Dynamic Railway Scale enables fully automatic weighing of wagons in motion, delivering fast, accurate, and reliable commercial weighing for both solid and liquid cargo. Designed for high-traffic rail environments, the modular system installs rapidly without on-site concreting and provides maintenance-free performance. With options such as automatic OCR identification and advanced data processing, Trapper DRS is a highly efficient solution for rail freight management.
Key benefits
- Weigh solid and liquid cargo quickly in motion even in the best accuracy class of 0.2
- Automate commercial wagon weighing without stopping rail traffic
- Install a modular system rapidly with no on-site concreting
- Configure the solution for different wagon types, cargo and traffic volumes
- Integrate weighing data seamlessly using OCR and advanced data processing
Specifications
Trapper DRS Dynamic Railway Scale is available in single- and multi-weighbridge configurations to meet the requirements of different wagon types and cargo.
Single-weighbridge system (4.5–6 m) is designed for dynamic weighing of wagons carrying solid cargo. Each wagon is weighed bogie-by-bogie as it crosses the weighbridge.
Multi-weighbridge system (two to four weighbridges) is intended primarily for tank wagons carrying liquid cargo or whenever the outmost accuracy is required. Each tanker is weighed when positioned individually on the appropriate combination of weighbridges, ensuring accurate results even when the centre of gravity shifts during movement. Multi-weighbridge systems can also be used for static commercial weighing of both solid and liquid cargo.
Trapper DRS features a very low construction height and a modular design, allowing the weighbridges to be configured optimally for the specific range of wagons being weighed.
The system is available in two structural variants:
- A compact steel foundation frame
- A prefabricated reinforced-concrete foundation
Both versions are installed directly on a compacted gravel bed, enabling extremely fast installation with minimal site preparation and no on-site concreting. The proven mechanical structure and electronics provide excellent dynamic weighing performance and support high crossing speeds.
Technical specification
Weighbridge structure: A robust steel construction available in module lengths from 4.5 m to 10 m. The number and length of modules are selected based on the wagon types and weighing method—either bogie-by-bogie or whole-wagon weighing
Weighing method: In motion – dynamically by both pulling and pushing and statically
Weighing speed: Up to 15 km/h
Weighing capacity: 100–160 tons
Weighing accuracy: Static according to EN 45501 – accuracy class III / dynamic according to OIML R106 – accuracy class 0,5/0,2 (wagon/train set) for multi-weighbridge scales, class 1/0,5 for single-weighbridge scales
Type approval number: FI 18.MI006.07
Variants: TRAPPER DRS with a steel compact foundation frame (total height 620 mm) / TRAPPER DRS with a prefabricated reinforced-concrete foundation (total height including foundation 750 mm)
Installation method: On a compacted gravel bed without on-site concreting
Crossing speed: Up to 35 km/h
Optional accessories and integrations
- Integration with ERP and company information systems
- Intrinsically safe EEx-i option
- Automatic control and evaluation of side and axle loads
- ScalexPC data processing software
- Comprehensive software for company siding management
- Wireless data transfer to remote operator stations
- Indoor/outdoor control cabinet for electronics
- Automatic OCR system for wagon and container identification
- Wagon RFID recognition system
Download the product brochure
Discover how Trapper DRS Dynamic Railway Scale enables fast, reliable in-motion weighing, modular installation, and seamless data integration. Download the brochure to explore system options, technical specifications, and available automation features in detail.
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