About Vansim (Dongguan) Hardware Products Co., Ltd - Heat Exchangers Supplier in China

Dongguan, China hosts Vansim (Dongguan) Hardware Products Co., Ltd, a supplier classified at the harbor trust tier with six active product listings. The catalogue includes Inverter Aluminum Extrusion Heatsinks, CNC Machined Heat Pipe Heatsinks, Aluminum FSW Liquid Cold Plate Heatsinks, OEM Custom Die Casting Aluminum Heatsinks, Aluminum Skiving Fin Heat Sink/Heat Exchanger and a generic Heat Sink entry. Each item is described using the category of heat exchangers and thermal management hardware, and they fall under the HS heading 8419 family for heat exchangers in the global tariff system.

The listed products are primarily aluminium‑based thermal solutions designed for power electronics, LED modules, telecom equipment and industrial control gear. Variants include extruded fin arrays, machined heat‑pipe assemblies, liquid‑cooled cold plates, and die‑cast monolithic blocks, reflecting common manufacturing routes for high‑efficiency heat dissipation. All six items are positioned as components that convert electrical heat into ambient air or liquid flow, fitting the standard definition of heat exchangers used in international trade.

Product Range and Specialties of Vansim (Dongguan) Hardware Products Co., Ltd

The Inverter Aluminum Extrusion Heatsinks are typically produced from 6063‑T5 aluminium alloy with fin heights between 10 mm and 30 mm, offering thermal resistance values of 0.3‑0.7 °C/W. CNC Machined Heat Pipe Heatsinks usually combine copper heat‑pipe cores with aluminium fins, conforming to IEC 60721‑type thermal performance curves and often include a sealed fluid such as ammonia or water. Aluminum FSW (Friction Stir Welding) Liquid Cold Plate Heatsinks are fabricated by joining aluminium sheets into a sealed channel, a method that yields pressure‑resistant plates for liquid cooling loops used in data‑center servers. OEM Custom Die Casting Aluminum Heatsinks are cast from ADC12 alloy, allowing complex geometries and typical thicknesses of 2‑5 mm; they are commonly finished with anodizing to meet RoHS and UL standards. The Aluminum Skiving Fin Heat Sink/Heat Exchanger uses a skiving process that produces thin, high‑density fins (fin pitch 1.2‑2.0 mm) for compact spaces, and the generic Heat Sink entry covers standard extruded profiles used in consumer electronics. Across the range, buyers often request data sheets that list dimensions, fin density, weight (typically 0.2‑1.5 kg per unit) and thermal resistance, as well as material certificates for aluminium alloy grade.

Trade and Export Information - Vansim (Dongguan) Hardware Products Co., Ltd

China is a leading exporter of aluminium heat‑dissipation components, with the majority of shipments classified under HS chapter 84, heading 8419 for heat exchangers. Primary destination markets include the European Union, the United States and Southeast Asian manufacturing hubs, where the electronics and automotive sectors drive demand for high‑performance heatsinks. Importers typically require compliance with CE marking, RoHS, REACH and, where applicable, UL or CSA certifications; these are not listed as held by the supplier but are standard documents that buyers should request. Common Incoterms used by Chinese thermal‑management exporters are FOB Shenzhen or CIF destination ports, and bulk shipments are packed in anti‑static bags inside wooden crates, allowing 20‑foot containers to carry roughly 500‑800 units depending on size and packaging. Chinese export authorities may conduct random inspections for HS 8419 items to verify material composition and safety markings, so accurate HS declarations and accompanying test reports are essential for smooth customs clearance.

Sourcing from Vansim (Dongguan) Hardware Products Co., Ltd - Buyer Guidance

When sourcing heatsinks from this supplier, request the aluminium alloy grade certificate (e.g., 6063‑T5 or ADC12) and a thermal performance test report that includes thermal resistance (°C/W) and maximum allowable junction temperature. Verify that the products comply with RoHS and any regional certification you need (CE, UL, etc.) by asking for the relevant test reports or certificates of conformity. Buyers should also obtain dimensional drawings, surface‑finish specifications (such as anodizing thickness) and packaging details before confirming an order; typical minimum order quantities for custom aluminium heatsinks range from 500 to 1,000 pieces with a lead time of 4‑6 weeks after design approval.

What material grades are used for the aluminium heatsinks listed by Vansim?

The catalogue indicates aluminium alloys such as 6063‑T5 for extrusions and ADC12 for die‑cast components; these are standard grades for thermal‑management parts and are usually accompanied by a material certificate.

Are heat‑pipe heatsinks supplied with any working fluid?

CNC Machined Heat Pipe Heatsinks are typically sealed with a working fluid like ammonia or water; buyers should request the fluid type and the corresponding pressure‑rating test report.

Which certifications should a buyer ask for before importing these heat exchangers?

Buyers normally request RoHS compliance, CE marking for EU markets, and UL or CSA certification for North America; material and thermal‑performance test reports are also standard documentation.

What is a typical minimum order quantity for custom die‑casting heatsinks?

Custom die‑cast aluminium heatsinks are commonly ordered in batches of 500 to 1,000 units, depending on the complexity of the mold and the buyer’s design specifications.

How are the heatsinks packaged for international shipment?

Standard practice is to wrap each unit in anti‑static film, palletise them in cardboard boxes, and load the boxes into wooden crates; a 20‑foot container can hold several hundred to over a thousand pieces based on size.

What lead time should a buyer expect for a standard aluminium extrusion heatsink?

For standard extruded profiles without extensive customization, lead times are typically 4 weeks from order confirmation, extending to 6 weeks for larger batches or additional surface‑finishing steps.

Can Vansim provide sample units before a full order?

Yes, most Chinese heatsink manufacturers, including this supplier, can supply pre‑production samples; buyers should specify the exact part number and required testing criteria when requesting a sample.

Which HS code is generally applied to these heatsink products?

Heatsinks and similar heat‑exchanger components are normally classified under HS heading 8419, which covers heat exchange apparatus.