Stamped Brazed Aluminum Water Cooling Plate 600x400x10mm For EV Battery Pack

Stamped Brazed Aluminum Water Cooling Plate 600x400x10mm For EV Battery Pack

A stamped and brazed water cooling plate for EV battery packs, built on a 600 x 400 mm envelope with a parallel multi-channel layout and integrated distribution manifold. Stamping both halves from 5 mm sheet and brazing them in one vacuum cycle produces a flat, sealed plate that spreads coolant evenly across the whole contact area instead of letting the far end of the pack run hot.

Key Features

• Parallel manifold channel design: even flow distribution across 600 mm width, low pressure drop at 8-12 L/min
• Single-cycle vacuum brazing: sealed body without secondary welding, lower weight than machined plates
• Flat contact face: 0.1 mm flatness after brazing for consistent thermal interface contact under the modules
• Surface treatment included as an option: anodizing, E-coat or powder coating selected to match the pack build
• Drawing-based customization: any plate size, port orientation and manifold layout can be tooled

Technical Specifications

Stamping + Brazing process: why it matters for a water cooling plate

The plate is formed in two stamped aluminum halves whose channel geometry is embossed directly into the sheet, then joined in a single vacuum brazing cycle. Compared with machined or extruded-tube cold plates, the stamped-and-brazed route gives a lighter part, a fully sealed one-piece body with no secondary welding seams, and a channel layout that can be redesigned without new heavy tooling. Vacuum brazing removes the flux residue and oxidation that shorten the life of a liquid circuit, and every plate is pressure tested and helium leak tested before packing.

Surface treatment options

Because the cooling plate sits inside a battery pack, an inverter housing or a charger enclosure, the surface has to do more than look clean. We offer Anodizing (clear / black / hard), powder coating, chromate conversion coating, nickel plating, electrophoresis (E-coat) and sand blasting. Anodizing and chromate conversion are the usual choices for dielectric stand-off against live busbars; powder coating is preferred where the plate is exposed to road spray; nickel plating is used where a glycol-water loop with an aggressive inhibitor package is specified.

Customization: built to your drawing

This water cooling plate is fully customizable. Typical engineering changes include overall length and width, plate thickness, channel pattern and width, inlet and outlet position and thread, connector type (threaded boss, hose barb, quick coupling), mounting hole pattern, fin or pedestal geometry on the contact face, and the final surface finish. Send a 2D drawing or 3D model and our engineering team will confirm brazing feasibility, tooling cost and sample lead time.

Applications

Specified for EV and utility vehicle battery packs, battery modules bonded with thermal gap filler, and pack-level cold plates in low speed electric vehicles where coolant has to be distributed evenly over a long module row.

Quality control

Incoming aluminum sheet is verified for alloy and temper, stamped halves are checked against the drawing, and each brazed plate goes through dimensional inspection, internal pressure hold, helium leak detection and a flow and pressure-drop check. Finished parts are packed in export-grade plywood cases with shock-proof foam.

About Trumony

Trumony Aluminum Limited supplies aluminum materials and thermal management components for the new energy industry, covering aluminum sheet, plate, tube, cold plates and battery housings. In-house stamping, vacuum brazing, machining and surface finishing allow us to support customers from design and simulation through tooling, prototyping and serial delivery.

Order and inquiry

Quotations, drawings and samples for this stamped brazed water cooling plate are available on request. Contact us with your cooling load, flow rate and envelope so we can propose the right channel design and surface treatment.