Jiangsu, China — Trumony Aluminum Limited announces immediate availability of its aluminum battery tray bottom enclosure for 30S battery packs. With 260 units already in stock and no tooling or development fee on first orders, low speed and utility electric vehicle builders can move from design freeze to pilot production in days instead of months.
The enclosure measures 700 x 500 x 110 mm and is manufactured from 6061-T6 / 6005A aluminum alloy using extrusion combined with friction stir welding (FSW). The result is a rigid, lightweight and leak-tight structural base that protects and supports high voltage lithium battery modules while keeping the overall pack weight under control.
Conventional fusion welding introduces porosity, heat distortion and residual stress around the joint line — three failure modes that battery pack engineers cannot tolerate in a sealed, vibration-loaded structure. Friction stir welding is a solid-state process: the material is stirred and consolidated below melting point, producing a fine-grain weld with high joint efficiency and very low distortion. For a bottom enclosure this translates directly into measurable benefits:
- Leak-tight joints: IP67 protection verified on the sealed structure, protecting modules from dust and water ingress in real road conditions
- Dimensional stability: minimal weld shrinkage keeps the 700 x 500 x 110 mm envelope flat and OEM compatible for automated pack assembly
- Fatigue resistance: superior performance under the continuous vibration profile of utility and low speed electric vehicles
- Lightweight construction: 2.5 mm wall thickness and aluminum alloy body bring the part to approximately 6.9 kg
- Powder coated surface: consistent finish with corrosion protection and clean appearance for customer-facing vehicle programs
| Parameter | Specification |
|---|---|
| Model Number | TR-BT30S-700 |
| Product Type | Battery tray bottom enclosure |
| Cell Configuration | 30S battery pack |
| Overall Dimensions | 700 x 500 x 110 mm |
| Material Grade | 6061-T6 / 6005A Aluminum Alloy |
| Manufacturing Process | Extrusion + Friction Stir Welding |
| Wall Thickness | 2.5 mm |
| Rated Voltage | Up to 120 V |
| Approx. Weight | 6.9 kg |
| Cooling Integration | Passive air cooling |
| Ingress Protection | IP67 |
| Surface Treatment | Powder Coated |
| Certification | ISO 9001:2015 |
The enclosure is designed for 30S battery packs and is particularly well suited to low speed electric vehicles — golf carts, neighborhood EVs, utility and patrol vehicles, agricultural and warehouse transport platforms — as well as stationary energy storage systems that need a robust, sealed battery base. Because the base is a structural component rather than a simple cover, it also simplifies pack-level design by carrying module load directly into the vehicle frame.
| Item | Detail |
|---|---|
| Price Range | USD 120 - 480 per piece |
| Minimum Order Quantity | 10 pieces (trial orders welcome) |
| Supply Ability | 5,000 pieces per month |
| Stock Status | 260 units ready to ship |
| Delivery Time | 3 working days for stock, 15-25 days for production |
| Payment Terms | T/T, L/C, PayPal, Western Union |
| Packaging | Export-grade plywood case with shock-proof foam and anti-rust film |
No tooling or development fee is charged on this enclosure: the part is already tooled and proven, so buyers can validate a 30S pack architecture with a 10-piece trial order and scale into volume production without amortizing mold cost. For programs that need a different geometry, Trumony supports custom dimensions, wall thickness and cooling integration — including integrated liquid cold plates — so that a single engineering partner can cover both air-cooled and liquid-cooled pack designs.
Trumony Aluminum Limited specializes in aluminum materials and thermal management solutions, including aluminum sheets, plates, tubes, cooling plates and battery pack housings. Serving the new energy vehicle industry, the company supports customers from design and simulation through molding, prototyping and serial delivery, helping shorten development cycles and reduce total program cost.
Quotations, technical drawings and samples for the TR-BT30S-700 aluminum battery tray bottom enclosure are available on request. Our engineering team will match the right bottom enclosure, cooling concept and sealing class to your 30S pack design — including low speed EV, utility vehicle and energy storage applications.
