This is a complete set of stamped metal components for liquid cooling manifolds used in AI servers and high-density computing racks. We produce these parts with a dimensional tolerance of ±0.02 mm, a
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This is a complete set of stamped metal components for liquid cooling manifolds used in AI servers and high-density computing racks. We produce these parts with a dimensional tolerance of ±0.02 mm, a
This is a complete set of stamped metal components for liquid cooling manifolds used in AI servers and high-density computing racks. We produce these parts with a dimensional tolerance of ±0.02 mm, a flatness runout of 0.05 mm max, and a surface finish of Ra 0.8 µm. Typical lead time is 12 working days from drawing approval, and we offer no MOQ for this collection.
Liquid cooling manifolds need many identical channels, ports, and mounting bosses. Stamping produces these features in one stroke, not one cutting pass. For a typical AI rack manifold, our stamping process holds a repeatability of 0.01 mm across 10,000 parts. That is faster and cheaper than CNC milling, and the hardened die ensures every part is a mirror of the last one. You get a manifold that seals consistently at every joint, which is critical when coolant pressure reaches 4 bar.
We stock three grades for this collection. First, SUS304L for manifolds carrying deionized water — it resists pitting and will not leach metal ions. Second, C5210 phosphor bronze for spring-loaded valve plates inside the manifold; it has a hardness of 180 HV and a low friction coefficient. Third, 6061-T6 aluminum for lightweight structural brackets, hardened to 95 HRB. For high-pressure zones, we add a 0.2 mm nickel plating on carbon steel (DC01) to pass a 72-hour salt spray test. All materials come with mill certificates, and we batch-test hardness on every 200th piece.
Leaks happen where a manifold face meets a gasket or an O-ring. We control this by using a compound die with a precision guide post, holding the punch and die gap at 0.03 mm. After stamping, we run a 100% optical flatness check on all sealing faces. The result: a maximum runout of 0.05 mm across a 200 mm length. This number matters because a flat face with low runout allows you to use a thinner, cheaper gasket without losing the seal. We also deburr all edges to 0.1 mm radius, so no sharp burrs cut into your coolant line.
Internal burrs inside a manifold channel create turbulence and pressure drops. They also trap particles that clog microchannels in your cold plates. To prevent this, we use a two-step stamping process: first a rough blank, then a fine blanking pass with a V-ring indenter. This gives a clean shear zone without fracture. We measure burr height with a laser profilometer. For this collection, the maximum burr height is 0.02 mm. If your drawing specifies a tighter limit, we switch to a shaving die, which can bring burr height down to 0.005 mm.
No stamped part leaves our Dongguan factory without a full data sheet. We use a Zeiss CMM to verify 5 critical points on every manifold: port spacing, hole diameter, flatness, runout, and thickness. For a batch of 500 parts, we inspect 20 pieces at 100% measurement and the rest with go/no-go gauges. We also do a random 1% air pressure test at 6 bar to confirm there are no micro-cracks. You receive a PDF inspection report with the batch number. If we find a deviation, we stop the press and re-certify the die before continuing.
| Specification | Value / Range |
|---|---|
| Materials | SUS304L, C5210, 6061-T6, DC01 + Ni plating |
| Thickness range | 0.3 mm – 4.0 mm |
| Maximum part size | 400 mm x 300 mm |
| Hardness (as supplied) | 180 HV (bronze), 95 HRB (aluminum), 220 HV (steel) |
| Dimensional tolerance | ±0.02 mm (standard), ±0.01 mm (fine blanking) |
| Flatness / runout | 0.05 mm max over 200 mm |
| Surface finish | Ra 0.8 µm (standard), Ra 0.4 µm (polished) |
| Burr height | 0.02 mm max (standard), 0.005 mm (shaved) |
| Lead time | 12 working days from drawing approval |
| MOQ | No minimum quantity (no MOQ) |
A stamped manifold is only as good as its die. We maintain all dies on a fixed schedule: after every 5,000 strokes, we inspect the punch edge and re-lubricate the guide pins. After 20,000 strokes, we replace wear inserts. This is why we can guarantee the same ±0.02 mm tolerance on your 10th order as on your first. If you are designing a new manifold, read our CNC cutting tool selection guide to understand how tool wear affects your part geometry. For a deeper look at how we define and measure tolerances, see our CNC machining tolerances guide.
Scratched faces are the most common shipping damage. We pack each manifold in a separate anti-static bag, then place them in a custom corrugated tray with foam inserts that lock the part in place. For orders above 200 pieces, we use plywood crates with a moisture barrier. Every box gets a red "FRAGILE – SEALING SURFACE" label. We ship via DHL, FedEx, or sea freight from Shenzhen port. For air freight, we can have your parts at Hong Kong airport in 3 days after production. Our export documentation includes a full packing list and a certificate of origin for made in China compliance.
Zero — we have no MOQ for the Ai Liquid Cooling Manifold Parts Collection, so you can order 5 pieces for prototyping or 5,000 for production at the same unit price structure.
Yes, we can adjust port diameters, thread types (NPT, BSP, G-thread), and hole positions, but we need your 2D or 3D drawing — we will quote custom tooling within 24 hours.
We inspect 100% of critical dimensions on a sample of 20 parts per batch, plus a 1% pressure test, and we email you the CMM report before shipment.
Standard lead time is 12 working days after drawing approval and tooling confirmation; for a new custom die, add 5–7 days for tool making.
We respond to every inquiry within 12 hours, often faster. Send your 2D or 3D drawing (STEP, IGES, or PDF) to sc@bquq.com. Or message us on WhatsApp at +86 13713157787. If you are unsure about the right material or tolerance, send your sketch and our engineers will suggest the most cost-effective stamping solution. We are a precision manufacturing factory in Dongguan, China, with 20 years of experience in CNC machining, stamping, springs, and heat sinks. No MOQ, no minimum order, just a firm quote.
| Parameter | Capability |
|---|---|
| Materials | SPCC, SGCC, SUS301/304/316, brass, copper, beryllium copper, phosphor bronze |
| Process | Progressive die stamping, fine blanking, deep drawing, bending, tapping |
| Tolerance | ±0.01mm standard, ±0.005mm on request |
| Surface | Zinc plating, nickel, tin, gold, powder coating, passivation, anodizing |
| Die Size | Up to 1200 x 800 mm, 16-250 ton presses |
| Thickness | 0.05 - 6.0 mm sheet metal, wire 0.1 - 8.0 mm |
| Prototype | 7-15 days tooling, no MOQ on samples |
| Inspection | Full report per batch, CMM and optical measurement |
