Q vs CoilCalc

Q-Weld is a professional documentation app for Thermit® welding in railway track construction and maintenance. Developed by Goldschmidt, it supports welders on site and provides project managers with reliable, real-time access to quality-related welding data. It guides you through the entire documentation process for every Thermit® weld, from shift creation and consumables scans to photo uploads – and syncs everything to the secure, globally accessible Dari® cloud platform. FOR WELDERS IN THE FIELD Create and manage shifts directly on your mobile device. Document each weld step by step: preparation, welding, alignment check and photographic documentation. Scan consumables such as Thermit® portions and moulds with the integrated barcode scanner – they are linked directly to the weld for complete traceability. The G-Tag gives every weld a unique digital identity. Record environmental data, including rail temperature, weather conditions, preheating time and tapping time. The app can be used fully offline – all data is stored locally and synchronised once connectivity is restored. FOR PROJECT MANAGERS AND BACK OFFICE Access shift and weld data in real time via the Goldschmidt Dari® platform. You can track progress across active projects, review quality records and maintain complete traceability of all welding operations, including geolocation data and information on consumable batches. TRACEABILITY AND DATA QUALITY Every weld is fully documented with consumable batch data, GPS coordinates, timestamps, photo evidence and a unique G-Tag identifier. This supports quality assurance, compliance and long-term asset management for railway infrastructure.

CoilCalc is a precise and intuitive tool for calculating technical coil and wire parameters. The app helps users determine accurate values for resistance, current, power output and coil length based on material type, wire gauge, diameter settings and wrap count. Designed for engineering tasks, educational environments and technical projects, CoilCalc provides clear results through a modern and easy to use interface. All calculations are processed instantly, making it an efficient tool for anyone working with coil geometry, wire characteristics or electrical values. Key Features • Accurate calculations for resistance, current, power and coil length • Supports multiple coil configurations such as single, dual and quad • Adjustable parameters for material, wire gauge, inner and outer diameter and wrap count • Instant results for technical and educational use • Clean and modern interface designed for clarity and speed • Built in formulas and explanations to help users understand the calculations • Fully localized in English and German • Works offline and requires no account CoilCalc offers a reliable and accessible way to perform coil and wire calculations, making it useful for training, engineering work and personal technical projects.