Stamped Brazed Water Cooling Plate 450x320x10mm Powder Coated For Motor

A stamped and brazed water cooling plate with a powder coated finish, sized for motor controllers and inverters that sit in the vehicle underfloor area. The U-flow channel with a central distribution rib keeps flow balanced across a 450 mm plate, and the powder coating gives a durable, chip-resistant surface for components exposed to road debris and wash-down.

• Powder coated finish: chip and corrosion resistant surface for underfloor mounted electronics
• U-flow with distribution rib: balanced flow across the plate at low pump power
• Brazed one-piece body: no gasket, no weld seam to fatigue under vibration
• Rugged mounting: thick 10 mm body accepts M6 threaded mounting bosses
• Custom build: outline, rib position, port type and finish matched to your controller housing

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.

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.

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.

Used for motor controller, inverter and DC-DC cooling in electric two-wheelers, three-wheelers, low speed EVs and electric forklifts, where the cold plate is mounted under the vehicle and must survive spray and vibration.

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.

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.

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.