Loading
IND-02Industry
Rail & Transit
Bogie frames, carbody structures, and drivetrain components built to fatigue-rated welding standards and a 30-year service expectation.
- Frames produced annually
- 1,800
- Welding coordination
- EN 15085 CL1
- Flatness after machining
- 0.05 mm/m
- Lead plant
- Calder Ridge Fabrication
Sector overview
What manufacturing for this sector actually involves
Rail structures are fatigue problems before they are strength problems. A weld that passes a static check and fails at ten million cycles has failed the customer, so our procedures target fatigue class rather than minimum strength.
Every welded structure for this sector is produced under EN 15085 CL1 discipline: qualified procedures, qualified welders, a responsible welding coordinator, and inspection coverage documented per joint.
Distortion control is the commercial issue. On bogie frames we hold flatness after welding tightly enough that finish machining removes stock rather than correcting shape.
Welded rail bogie frame on a fixture in a fabrication bay, with weld sequence markings visible
REQSector requirements
Four things this sector demands that others do not.
- 01
Fatigue-rated welding
Joint design and procedures selected for fatigue class, with weld toe treatment where the design demands it.
- 02
Certified welding coordination
EN 15085 CL1 discipline with a responsible welding coordinator, qualified procedures, and welder continuity tracking.
- 03
Distortion control at scale
Weld sequencing and fixturing engineered so structures arrive at machining within 0.05 mm/m rather than needing correction.
- 04
Long-life corrosion systems
Blast profile and multi-coat systems specified together and validated to 1,000-hour salt spray.
Components we buildBOM
- Bogie frames and bolster assemblies
- Traction motor mounts and gearbox housings
- Carbody underframe sections
- Coupler support structures
- Brake rigging and suspension brackets
- Pantograph base frames
Standards worked toSTD
- EN 15085 CL1 railway welding
- ISO 3834-2 welding quality requirements
- EN 1090 execution of steel structures
- ISO 12944 corrosion protection
- ISO 9001:2015 quality management
Certification scope and current certificate numbers are listed on the quality page.
CAPCapabilities used
The disciplines this sector's work usually routes through
- CAP-02
Heavy Fabrication & Weldments
Structural weldments to 40 tonnes, with coded welding procedures, stress relief, and large-envelope machining under one roof.
View capability - CAP-05
Surface Treatment & Finishing
Coating, plating, passivation, and industrial painting managed as a controlled process step with recorded thickness and adhesion results.
View capability - CAP-06
Metrology & Inspection
A climate-controlled metrology hall, portable measurement on the shop floor, and inspection data that ships with the parts.
View capability
PRJSector project
A program delivered in this sector
RFQRequest for quotation
Building for rail & transit?
A manufacturing engineer reviews every inquiry before it is costed. Send drawings or a model with your volume and delivery expectations, and you will have an acknowledgment within one business day.
Monday to Friday, 7:00 AM –6:00 PM ET