SanJun Hardware specializes in custom non‑standard sheet metal housings for 241kWh liquid‑cooled energy storage cabinets, serving global new energy system integrators and ESS project contractors.

Many overseas ESS customers face recurring sourcing challenges:
‑ Lack of mature structural drawings
‑ High‑cost third‑party design outsourcing
‑ Structural deformation caused by heavy‑weight battery modules
‑ Poor assembly fit for liquid‑cooling pipeline channels
‑ Inadequate sealing resulting in dust and moisture ingress
‑ Inconsistent welding quality
‑ Insufficient anti‑corrosion performance for long‑term outdoor operation

We solve these industry pain points with our core service:
**100% free production‑ready CAD drawing design tailored to your project requirements. No self‑designed drawings from clients are needed.**

Our complete manufacturing process includes precision laser cutting, CNC bending, reinforced full‑seam welding, pre‑reserved liquid‑cooling pipeline mounting positions, custom sealing structures, heavy‑load reinforcement and weather‑resistant powder coating.

We maintain standard machining tolerance at ±0.1 mm, and can achieve ultra‑precision custom tolerance up to ±0.05 mm.
Each enclosure undergoes full‑dimension inspection, dust‑water tightness testing and comprehensive finished‑product validation prior to delivery.

This 241kWh liquid‑cooled battery cabinet shell is widely applied in:
‑ Utility‑scale energy storage stations
‑ Commercial & industrial energy storage projects
‑ Peak‑valley power arbitrage systems
‑ Critical backup power solutions
‑ Off‑grid renewable energy facilities

Full non‑standard modifications are available for dimensions, cooling interfaces, door configurations, IP protection levels and mounting hole layouts to perfectly match your battery pack and liquid‑cooling unit specifications.