SanJun Hardware provides one-stop OEM & ODM full-process sheet metal fabrication service for off-grid new energy integrated battery cabinets. We operate self-owned complete production workshops covering laser blanking, CNC precision bending, seamless full welding, structural reinforcement and electrostatic weather-resistant powder coating, delivering high-rigidity, ultra-precision metal enclosures for global off-grid solar power storage projects.
Core Competitive Edge: Free Custom CAD Drawing Design (No Buyer Drawings Needed)
Countless global purchasers halt customization plans due to missing cabinet structural drawings and unaffordable industrial design expenses. SanJun Hardware launches exclusive free drawing optimization service to solve this trouble once and for all.
According to your actual battery dimension, internal component layout, required IP waterproof rating, installation method and local outdoor operating environment, our senior engineers will finish production-ready 2D/3D CAD drawings and targeted structural optimization at zero cost, supporting unlimited revision cycles. This service drastically cuts your independent design expenditure and shortens your whole project launch cycle.
Key Industry Pain Points We Have Fully Resolved
- Eliminate heavy-load cabinet sagging & permanent deformation: Reinforced thick frame + multi-layer internal rib structure upgrades overall cabinet rigidity, maintaining stable shape under long-term heavy battery load without bending.
- Upgrade IP waterproof & dustproof capacity: Optimized integrated folded edge + full-circumference double EPDM sealing structure stably achieves IP54/IP65 protection grade, perfectly coping with rainy, dusty, coastal salt fog and high-temperature outdoor harsh environments.
- Zero uneven assembly gaps: Strict ±0.1mm standard tolerance ensures precise alignment of mounting holes, cabinet doors and ventilation components for seamless module assembly.
- Strengthen long-term anti-corrosion & weather resistance: Double treatment of hot-dip galvanizing + weather-resistant electrostatic powder coating effectively blocks rust, UV aging and salt fog erosion to extend outdoor service life greatly.
- Customized efficient heat dissipation system: Tailored air duct and layered ventilation layout avoids battery overheating risk and guarantees long-term steady operation of energy storage systems.
Raw Material & Precision Manufacturing Standard
We adopt premium cold-rolled steel, galvanized steel and SUS304 stainless steel for different application environments. Standard dimensional tolerance: ±0.1mm; High-precision customized tolerance: ±0.05mm. Every enclosure undergoes strict full-inspection before shipment and complies with international ISO9001, RoHS, EMC and LVD compliance standards.
Wide Application Scenarios
Our custom sheet metal cabinet shells serve multiple mainstream off-grid energy sectors: off-grid solar PV storage systems, household emergency backup power stations, outdoor portable energy storage equipment, industrial & commercial distributed energy storage projects, RV/yacht mobile power supplies, remote mountainous & island independent off-grid power supply facilities.
