Coolant Tanks, Radiator Header Tanks & Expansion Reservoirs

Custom welded tank assemblies for vehicle cooling, radiator modules, data-center cooling and industrial thermal management equipment.

Coolant tank pressure testing

Technical Scope

Rayhanna reviews drawings, product structure, pressure requirements, coating and cleanliness before confirming the manufacturing route.

CapacityApprox. 0.1-200 L by product structure and drawing.
MaterialsAluminum, carbon steel and stainless steel.
FinishesPhosphating, passivation and powder coating by project.
TestingLiquid or gas leak testing and pressure testing.
Welding process for tank assemblies

Designed for Reliable Cooling System Integration

Tank assemblies can integrate welded structures, ports, brackets, covers and customer-defined connection features. Leak-test criteria are defined by drawings and project specifications.

  • Expansion tanks and coolant reservoirs
  • Radiator header tanks and industrial cooling tanks
  • Welding, forming and leak testing in one project workflow
  • Typical air leak testing pressure around 0.2 MPa, with higher pressure reviewed by project

Tank Project Flow

A controlled path from drawing review to final inspection and packaging.

01Drawing Review

Confirm structure, ports, material and pressure requirement.

02Component Processing

Prepare formed and machined components.

03Welding

Execute welding route by drawing and fixture plan.

04Surface Treatment

Apply project-defined treatment when required.

05Leak Testing

Test against customer criteria.

06Final Inspection

Inspect and package for shipment.