01
Advanced Design & 3D CAD Engineering
Every TRBL platform begins in CAD. We model the full vehicle and validate structure, aerodynamics, NVH and packaging before metal is cut.
Parametric CADFEA & NVHAero studiesDFMEA
Process
Six Integrated Stages, Zero Compromises
How a TRBL bus is built — from the first CAD model to the final roadworthiness test. Every stage happens in-house at Vijayawada.
- 02
Modern Manufacturing Infrastructure
Trumpf & Prima 5-axis 3D laser, HSG 2D laser, plasma cutters and ISGEC press lines feed precision blanks into the line.
5-axis laserPress 350–600TPlasma 3 × 13 mStretching - 03
Fabrication & Body Assembly
Robotic welding cells with dedicated jigs assemble steel or aluminium body structures with dimensional repeatability.
Robotic weldSteel & AlBody jigs5 overhead cranes - 04
Electrical, HVAC & Battery Integration
Battery pack, BMS, drivetrain, HVAC, lighting and infotainment harnesses are installed and tested for continuity and insulation.
HV harnessBMSHVACTelematics - 05
Surface Prep & Painting
Eco-friendly pre-treatment chemistry feeds dedicated paint booths and ovens — corrosion resistance and long-life gloss in three booths.
Eco pre-treat3 paint boothsOven cureQuality gates - 06
Trim, Interior & Customisation
Seating, flooring, lighting, glazing and operator branding — from city economy specs to premium executive coach builds.
Custom seatsLightingBrandingWheelchair ramps
Final Quality Gate
Four checks. Every bus. No exceptions.
Structural
Body strength, joint integrity and dimensional verification.
Shower Test
Full-body water-tightness across roof, joints and door seals.
Electrical
Harness continuity, insulation and HV battery system validation.
Roadworthiness
On-site test loop — every bus signed off before dispatch.