Shandong KeyuanAnqiu, Shandong · IATF 16949 · est. 2021
Thermal management, built to your drawing.
Liquid cold plates, battery enclosures and cooling units for commercial EVs and energy storage. Laser, bending, friction-stir welding, e-coating and leak testing — all in one plant.
Machining and assembly hall, Anqiu plant
What we make
Two product families. One process chain.
Most parts are built to customer drawings. These are the families we run in series today.
Commercial EV thermal & structural parts
Battery liquid cooling units, standard C-box cold plates, high-voltage box enclosures and battery-pack trays for electric heavy trucks.
EV products →
Energy-storage enclosures & cooling
104S cold plates, 5 kW liquid cooling units, and enclosures from 261 kWh cabinets to 5 MWh containers and 2 MWh mobile units.
ESS products →In-house process chain
From coil to coated, leak-tested assembly.
Nothing outsourced.
- 01Laser cutting±0.03 mm positioning, Han's Laser fibre
- 02DeburringFlat-part edge finishing
- 03Press-fit hardwareAutomatic and manual insertion
- 04CNC bendingCrowning compensation, laser angle feedback
- 05WeldingFriction-stir, laser, TIG, robotic MIG
- 06Automated grindingWeld-seam finishing
- 07Leak & pressure testEvery cooling part, before coating
- 08E-coat & powder≥1,000 h salt spray
- 09Inspection & packingPPAP documentation on request
Friction-stir welding
The seam that makes a cold plate a cold plate.
FSW joins the flow-channel plate and cover without melting the aluminium — low distortion, a flat seam, and a leak-tight joint that survives thermal cycling. It is our standard process for every liquid cold plate.
Welding capabilities →
E-coating
Corrosion protection that reaches inside.
Cathodic electro-deposition coats every edge, seam and internal cavity — places spray paint never reaches. ≥1,000 hours salt spray, water-borne, very low VOC. Followed by electrostatic powder for the outer surface.
Coating specifications →
Why engineers work with us
Built for build-to-print programmes.
Automotive quality system
IATF 16949 certified. APQP-style stage gates from RFQ through OTS, PPAP and SOP, with initial PFMEA and control plans on every new programme.
Design-for-manufacturing
25 R&D and process engineers review your drawing for weld access, channel geometry, coating coverage and cost before any tooling is cut.
Source-factory economics
Material, forming, welding and coating in one plant: one margin, one lead time, one point of accountability. Two hours by road to Qingdao Port.
Certifications
Systems and approvals.
- IATF 16949Automotive quality
- ISO 9001Quality management
- ISO 14001Environmental
- ISO 45001Health & safety
- MAChina mining-product safety mark
- ExExplosion-proof conformity
Send us a drawing.
STEP or PDF, with target volumes. A process engineer replies with a DFM review and quotation.