Vansim (Dongguan)Hardware Products Co., Ltd.
France battery cooling brazed cold plate
Category:
FranceBrazed Cold Plate
Product Description
Ultra-Thin Brazed Cold Plate
For Battery Energy Storage System (BESS) Liquid Cooling
Stamped Components + Vacuum Brazing process – The Manufacturing Backbone
Mass production at this thin geometry cannot rely on traditional CNC-machined channels. We use high-speed stamping for both the cover plate and the baseplate, followed by precision vacuum brazing.
Stamped Cover & Baseplate
Progressive die stamping ensures consistent channel depth (±0.05 mm) and flatness across high-volume runs
No secondary machining on flow paths – reducing cost and lead time
Material: corrosion-resistant aluminum (3003 or 6061-series) with optional chromate-free conversion coating
Vacuum Brazing – Joint Integrity at 3.0 mm
Brazing filler metal (clad layer) is pre-applied on the baseplate; during brazing, capillary flow creates a continuous, void-free bond
The thin wall withstands brazing thermal cycles without warping, thanks to controlled fixture clamping and ramp-rate profiling
Typical burst pressure > 2.5 MPa, leak rate < 1×10⁻⁶ mbar·L/s (helium) – reliable for long-term ESS operation
Built for High-Volume Production & Rugged Handling
At 3.0 mm, thin plates are prone to denting and warping during transfer. Vansim addresses this with:
Custom stacking trays with edge-support ribs
Automated pick-and-place with vacuum grippers (not mechanical clamps)
100% flatness check after brazing – out-of-tolerance parts are auto-rejected
All parts are delivered with protective film on both sides and edge protectors for shipment.
We have to also explain our disadvantages to you: The cost for the prototype will be higher, It's will perform well during mass production for the cost.
Why Vansim for Your ESS battery brazed Cold Plate
Process maturity: Stamping + brazing line dedicated to thin-walled battery products
Flexible sizing: From 200×150 mm to 1200×600 mm, all with 3.0 mm baseline (other thicknesses available)
Quick NPI: Prototype tooling in 4 weeks, production tooling in 6–8 weeks
Full traceability: Each plate laser-marked with batch ID linking to stamping press parameters, brazing furnace curve, and leak test results
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No. 10, Minying West Road, Hengli Town, Dongguan City, China 523390