1. Robotic Wagon Body Welding Eight-axis cells, 10,000 x 2,500 x 2,000 mm envelope. Servo column covers full wagon length with camera-based seam tracking.
A rolling stock manufacturer’s biggest promise is not the delivery date. It is that every weld on a car body, underframe and bogie will hold for thirty years of service, and that the paperwork can prove it. That is why bogie frame welding automation is critical for every production line. Coach shells run to 20-plus metres of stainless steel or aluminium with thin sections that distort if the heat input drifts. Bogie frames carry fatigue loads that expose any lack of penetration. Behind all of it sits an inspection and documentation regime, whether the client is Indian Railways or a global OEM, that treats every joint as auditable. That is the production environment Drupe builds for.
Approved supplier to L&T, Godrej and heavy structural fabricators across India. Every system engineered and fabricated at our 300-ton MIDC Taloja floor, sized for the throughput PEB production demands.
1. Robotic Wagon Body Welding Eight-axis cells, 10,000 x 2,500 x 2,000 mm envelope. Servo column covers full wagon length with camera-based seam tracking.
2. Robotic Axle and Bogie Welding Rotational cells for axles and bogie components up to 3,000 x 1,000 mm and 1,000 kg.
3. Coach Shell Long-Seam Welding Column-and-boom, TIG/SAW gantries and 5,000 kg positioners for side wall, roof and underframe seams over 20 metres.
4. CNC Cutting for Bogie Plate Gantry and table-type CNC plasma and oxy-fuel for cross-members, brackets and bogie parts.
5. Handling and Robot Linear Tracks Pick-and-place gantries and 7th-axis tracks carrying up to 5,000 kg between stations at ±0.5 mm repeatability.
From your first drawing to lifetime service, every project runs the same disciplined path.
In rolling stock, a weld has to pass inspection today and hold for thirty years. As a result, the manufacturer has to prove both against a tender delivery schedule. Drupe has already built for that environment: for example, our eight-axis robotic cell welds full 10-metre wagon bodies with camera-guided seam tracking, and our axle welding cells hold 1,000 kg components on centre through the whole joint. In addition, Indian Railways is an existing customer, and our approved supplier standing with L&T and Godrej means our systems have already cleared the procurement audits heavy-industry buyers run.
The system is engineered for repeatability first: stable parameters, controlled travel speed and fixed positioning make procedure qualification straightforward and hold the qualified procedure in production. Weld data capture can be integrated where your QA process or the client standard requires it. We work to your WPS and inspection regime rather than asking you to change it.
Yes. Our rotational welding cells hold components up to 3,000 mm x 1,000 mm and 1,000 kg between hydraulic headstock and tailstock, with a robot-controlled rotary axis keeping the torch in the flat position through the whole joint. The same platform is adapted for bogie sub-assemblies and similar fatigue-critical parts.
Yes. Cells are built around robot linear tracks, positioners and gantries that can be extended in stroke, payload or station count, and reprogrammed for new wagon or coach variants without replacing the base system. Most rail lines start with one welding station and add cutting, handling or a second cell as volume commitments grow.
