UISB

Cross Car Beam — reinforced instrument panel sub-assembly
Cross Car Beam - ICE / HEV / EV

Cross Car Beam. Reinforced IP Sub-Assembly · ICE · HEV · EV

Engineered from STKM-11A and SPC590 high-strength steel, robot CO2 welded across 6 models and 3 vehicle platforms — with 100% checking fixture inspection before dispatch.

Engineered from STKM-11A and SPC590 high-strength steel, robot CO2 welded across 6 models and 3 vehicle platforms — with 100% checking fixture inspection before dispatch.

STKM-11A SPC590 6 Models 3 Platforms 100% QC
Product Overview

Structural Precision for Every Platform

Our Cross Car Beam product range delivers reinforced instrument panel sub-assemblies for automotive applications — a critical structural member spanning the full width of the vehicle, housing the instrument cluster, HVAC, airbag systems and steering column.

"Robot CO2 welded from STKM-11A and SPC590 high-strength steel, engineered across 6 models covering ICE, HEV and EV platforms."

Robot CO2 Welding

Fully automated welding delivers consistent weld quality and high mechanical strength across all models.

Multi-Platform Coverage

Engineered variants for ICE, HEV and EV vehicle types — from simple direct designs to complex dual-diameter assemblies.

100% Final Inspection

Every finished beam passes through a dedicated checking fixture — zero defects leave the production line.

Technical Specifications

Engineering Grade Materials

Two high-strength steel grades — selected for their complementary properties, delivering both structural rigidity and excellent formability across all assembly variants.

Primary Structural Material
STKM-11A
JIS G3445 Low-Carbon Steel Mechanical Tube
StandardJIS G3445
Carbon Content< 0.12%
Tensile Strength290 – 390 MPa
FormabilityExcellent
WeldabilitySuperior
MachinabilityHigh
Low Carbon <0.12% Excellent Formability Superior Weldability CO2 Weld Ready Precision Machinable
High-Strength Stamping Material
SPC590
High-Strength Cold-Rolled Steel Sheet
Minimum Tensile590 MPa
TypeCold-Rolled HSLA Sheet
Key PropertiesUltimate Tensile Strength, Formability
Tensile Strength≥590 MPa
FormabilityExcellent
Structural RigiditySuperior
High-Strength 590 MPa+ Excellent Formability Stampable Crash Safety Rated
Joining Technology

Robot CO2 Welding — The Assembly Standard

CO2 (MAG) welding performed by robotic systems delivers precision, repeatability and speed across all assembly models. Automated execution eliminates human variation and ensures every weld joint meets the dimensional and mechanical requirements of the design specification.

Strong WeldGood penetration and high mechanical strength at every joint.
Cost EffectiveCO2 shielding gas is significantly less expensive than Argon alternatives.
Automation FriendlyRobotic delivery provides consistent weld quality across every production run.
High ProductivityFaster welding speeds support volume production requirements for all platforms.
Product Range

Three Platform Variants

Each vehicle powertrain type demands a unique instrument panel beam configuration — from the streamlined geometry of ICE platforms to the complex dual-diameter architecture of fully electric vehicles.

ICE Vehicle
Internal Combustion Engine
The most direct and streamlined Cross Car Beam design. Optimised for conventional powertrain packaging with a focused structural profile.
Simple, direct beam geometry
Optimised for conventional packaging
Standard HVAC & airbag integration
Hybrid Vehicle
Hybrid Electric Vehicle
Almost identical to the ICE variant in geometry and assembly method, with targeted structural adaptations for hybrid drivetrain components.
Similar geometry to ICE variant
Hybrid drivetrain accommodation
Extended harness routing paths
Electric Vehicle
Full Electric Vehicle
The most complex configuration — combining two different pipe diameters in a single integrated assembly for demanding EV platform packaging requirements.
Dual pipe diameter construction
Most complex assembly variant
Full EV sub-system integration
Manufacturing Excellence

4-Process Robotic Excellence

From projection welding to final robot assembly — every stage is precision-controlled for joint integrity, dimensional accuracy and structural conformance.

Projection Welding

Child parts from stamping undergo projection welding to fuse nuts onto the part. Nuts are precisely positioned and resistance-welded using projection geometry — delivering strong, inspected fastener joints verified for position, weld quality and pull-out strength.

Laser Cutting

Circular steel tube is cut to precise lengths and profiles using laser technology. Clean, accurate edges with minimal heat-affected zone — cut tubes are checked for length accuracy, squareness and edge quality before welding assembly stages.

Robot Child Part Welding

Child parts without nut (from stamping) and with nut (from projection welding) are combined and CO2 robot-welded into sub-assembly units. Each joint is executed to design spec — consistent penetration, verified geometry before final assembly.

Robot Assembly Welding

Laser-cut tubes and sub-assemblies are brought together in the final robotic welding stage. The complete Cross Car Beam is assembled in a single controlled operation — joint positions, weld sequences and dimensions verified against full assembly specification.

Market Performance

Production Market Share

Half-year platform market share — Cross Car Beam (IP) supply to principal customer assembly plant.

H1 2024 Jan – Jun 2024
0%
H2 2024 Jul – Dec 2024
0%
H1 2025 Jan – Jun 2025
0%

Market share figures represent CCB unit supply to Perodua as a proportion of total platform production volume for the reference period.

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