{"id":3201,"date":"2026-04-29T07:33:50","date_gmt":"2026-04-29T07:33:50","guid":{"rendered":"https:\/\/ceshi.baoxuanmetal.com\/?post_type=product&p=3201"},"modified":"2026-07-04T03:02:47","modified_gmt":"2026-07-04T03:02:47","slug":"ev-battery-pack-lower-tray","status":"publish","type":"product","link":"https:\/\/ceshi.baoxuanmetal.com\/de\/product\/ev-battery-pack-lower-tray\/","title":{"rendered":"EV Battery Pack Lower Tray"},"content":{"rendered":"

What Is an EV Battery Pack Lower Tray?<\/h2>\n

An EV battery pack lower tray is the bottom load-bearing and protective structure of the battery enclosure. It sits beneath the module or cell system and primarily provides mounting support and bottom protection. Together with the upper cover, side structures, and sealing system, it helps the full pack achieve impact resistance, intrusion protection, and dust- and water-resistance.<\/p>\n

In a finished EV battery pack, the lower tray is typically integrated with sealing flanges, cooling-related interfaces, internal support structures, and vehicle mounting points.<\/p>\n

The lower tray is the main load-bearing structure of the entire battery system. Its design has a direct impact on the service life of the battery pack.<\/p>\n

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Assembly Structure Drawing of Electric Vehicle Battery Pack Lower Tray<\/span><\/p>\n

EV Battery Pack Lower Tray Specifications<\/h2>\n

We can provide the typical specification range that is achievable for standard EV battery pack lower tray projects. The final production specification, however, still needs to be defined around your specific battery design.<\/p>\n

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\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Item<\/th>\nTypical Range or Available Options<\/th>\n<\/tr>\n<\/thead>\n
Material options<\/td>\nAluminum alloys, 6061, 6063, 6082, 5083; carbon steel; stainless steel, 304, 316<\/td>\n<\/tr>\n
Thickness range<\/td>\n1.0 mm to 6.0 mm, depending on material and structural requirements<\/td>\n<\/tr>\n
Tray size<\/td>\nProject-specific, from small battery packs to large trays for commercial vehicles<\/td>\n<\/tr>\n
Structural features<\/td>\nRibs, stamped embossments, partitions, mounting bosses, sealing flanges, cooling channels<\/td>\n<\/tr>\n
Manufacturing processes<\/td>\nLaser cutting, stamping, forming, bending, extrusion fabrication, CNC machining, welding, MIG, TIG, FSW, riveting, assembly<\/td>\n<\/tr>\n
Surface finish options<\/td>\nMill finish, chemical conversion coating, powder coating, e-coating, anodizing for aluminum alloys<\/td>\n<\/tr>\n
Tolerance reference<\/td>\nBased on project drawings, standard tolerances per DIN ISO 2768-1, or project-specific requirements<\/td>\n<\/tr>\n
Joining methods<\/td>\nMIG or TIG welding, friction stir welding, resistance spot welding, rivets including blind rivets, solid rivets, and flow-drill rivets, adhesive bonding<\/td>\n<\/tr>\n
Prototype support<\/td>\nAvailable, from single prototypes to small pilot-production batches<\/td>\n<\/tr>\n
Production capacity<\/td>\nFrom low volume to high volume, with scalable manufacturing capacity<\/td>\n<\/tr>\n
Customization<\/td>\nFully customized by project, manufactured to drawings or 3D files<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Material Options and Structural Approaches for EV Battery Pack Lower Trays<\/h2>\n

Material selection for EV battery tray sheet metal structures<\/a> depends mainly on your project priorities. Whether your focus is lower weight, higher strength, or cost optimization, SR MFG can support the evaluation and selection process.<\/p>\n

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\n\n\n\n\n\n\n\n\n
Material or Structural Approach<\/th>\nTypical Advantages<\/th>\nTypical Considerations<\/th>\nBest Fit for Project Priorities<\/th>\n<\/tr>\n<\/thead>\n
Aluminum alloy battery tray<\/td>\nLightweight, about 50% lighter than comparable steel, good strength-to-weight ratio, excellent corrosion resistance, well suited to medium- to high-volume production<\/td>\nJoint locations need careful design to maintain structural continuity, and welding requirements are more demanding<\/td>\nWeight reduction, range improvement, and cost-effective medium-volume production<\/td>\n<\/tr>\n
Aluminum extrusion plus assembly<\/td>\nAllows complex cross-sections, good stiffness in targeted directions, flexible geometry for easier integration<\/td>\nExtrusion tooling cost is higher, assembly steps are required, and joining may be needed to complete the full enclosure<\/td>\nComplex tray geometries, low- to medium-volume projects, and designs that prioritize flexibility<\/td>\n<\/tr>\n
Steel tray solution<\/td>\nCarbon steel sheet metal fabrication for cost-sensitive tray structures<\/a> Lower material cost, good stiffness, mature manufacturing processes<\/td>\nSignificantly heavier than aluminum and requires protective coating against corrosion<\/td>\nCost-sensitive projects, heavy-duty applications, and high-volume economy EV programs<\/td>\n<\/tr>\n
Stainless steel option<\/td>\nExcellent corrosion resistance, strong durability, and potential for thinner gauges<\/td>\nHigher material cost, heavier than aluminum, and machining and welding require special consideration<\/td>\nHarsh environments, premium durability requirements, and chemically exposed applications<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Manufacturing Processes for EV Battery Pack Lower Trays<\/h2>\n

There is no fixed manufacturing template for these parts. Low-volume prototype builds before production parts<\/a> may follow completely different process.\u00a0SR MFG uses a range of manufacturing methods, including forming, joining and sheet metal welding and fabrication methods for structural battery trays<\/a>, and can combine them flexibly to match your custom project requirements and achieve the best result.<\/p>\n

Our core manufacturing capabilities include:<\/p>\n

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Laser cutting<\/strong> \u2192 stamping<\/strong> \u2192 bending<\/strong> \u2192 extrusion fabrication<\/strong> \u2192 welding<\/strong> \u2192 assembly preparation<\/strong> \u2192 surface finishing<\/strong><\/span><\/p>\n

Applications for EV Battery Pack Lower Trays<\/h2>\n

Our EV battery pack lower trays can be customized for a wide range of sheet metal solutions for energy and power equipment<\/a>, including electric and hybrid vehicle programs.<\/p>\n

Common applications include:<\/p>\n