aluminum heat sinks: 6063-T5 aluminium, 0.4 mm fins at 3.0 mm pitch, 0.05 mm over 100 mm flatness, 0.62 K/W thermal resistance. MOQ 50 pcs, ships in 5 workin...
aluminum heat sinks: 6063-T5 aluminium, 0.4 mm fins at 3.0 mm pitch, 0.05 mm over 100 mm flatness, 0.62 K/W thermal resistance. MOQ 50 pcs, ships in 5 workin...
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Aluminum heat sinks in 6063-T5 reach 0.62 K/W thermal resistance with 0.4 mm fins at 3.0 mm pitch and a 2.0 mm base held flat to 0.05 mm over 100 mm. A single 63 T stroke forms each part in a 12 s cycle, supporting an 800,000 pcs line with ±0.15 mm hole position and ±0.03 mm tooling tolerance.
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See also: About BQUQ.
Aluminum heat sinks in 6063-T5 reach 0.62 K/W thermal resistance with 0.4 mm fins at 3.0 mm pitch and a 2.0 mm base held flat to 0.05 mm over 100 mm. A single 63 T stroke forms each part in a 12 s cycle, supporting an 800,000 pcs line with ±0.15 mm hole position and ±0.03 mm tooling tolerance.
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Engineered for industrial PLC and control cabinet, the aluminum heat sinks in 6063-T5 aluminium reaches 0.62 K/W thermal resistance. Fins measure 0.4 mm at 3.0 mm pitch; the 2.0 mm base is verified flat to 0.05 mm over 100 mm before dispatch.
Because the base and fins are pressed as one piece, there is no brazed joint to fail. 0.05 mm over 100 mm flatness on the mounting face is held directly from the tool, which keeps thermal interface contact uniform.
A single 63 T stroke forms the whole aluminum heat sinks, so part cost stops scaling with complexity. Tooling runs ±0.03 mm, and the 12 s cycle feeds a 800,000 pcs line.
The one-piece geometry removes the adhesive layer found in two-part coolers, cutting the thermal path. Nothing sits between 6063-T5 aluminium and the airflow except the stamped surface itself.
Every stroke is dimensionally identical, so ±0.15 mm hole position carries across the batch. That is what makes industrial PLC and control cabinet volume programs repeatable.
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The clear anodize Type II, 5-10 µm finish is applied after forming, so corrosion protection does not get cut through at the fin roots the way it does on machined alternatives.
The standard material is 6063-T5 aluminium, supplied with clear anodize Type II, 5-10 µm. For applications where industrial PLC and control cabinet exposure is a concern, we recommend the passivated route; where conductivity matters more than weight, copper C110 raises thermal performance and roughly doubles unit mass.
General dimensions run to ±0.15 mm, with critical features such as ±0.03 mm on fin pitch held separately. Formed geometry inherits tooling repeatability of ±0.03 mm, and hole position is held to ±0.15 mm. Tighter classes need an extra press operation, so it is worth deciding before tooling rather than after.
Incoming 6063-T5 aluminium is checked for thickness and hardness before it enters the press. After forming, optical comparator 0.002 mm confirms 0.05 mm over 100 mm and 3.0 mm against the drawing.
Sampling is AQL 0.65 for critical dimensions and 1.5 for general, with optical comparator 0.002 mm on every first article. Deviations beyond ±0.15 mm trigger a full-lot sort.
Flatness is measured on granite rather than on cast iron, because 0.05 mm over 100 mm at 80 x 60 x 35 mm reads differently on a plate that has not been lapped. Records keep both readings.
Final containment is PE bag + export carton, 20 kg per carton. Every carton is labelled with lot, quantity and inspection status, and the record is kept for 10 years against the ISO9001 file.
industrial PLC and control cabinet customers typically specify 6063-T5 aluminium for corrosion reasons and then hold the drawing to ±0.15 mm. The 800,000 pcs line absorbs the volume without a second source.
Where a aluminum heat sinks runs at industrial PLC and control cabinet volumes, part-to-part consistency decides field returns. ±0.03 mm on a 800,000 pcs run keeps the thermal curve inside one band.
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industrial PLC and control cabinet designs often run a 2.0 m/s forced-air path. 0.62 K/W at ΔT = 60 K, natural convection means industrial PLC and control cabinet can hold its target with fan power below the acoustic limit.
For industrial PLC and control cabinet prototypes, 5 working days covers drawing review and first article. Production lots move to 12 working days once the ±0.03 mm capability is signed off.
| Parameter | Value / Range |
|---|---|
| Material | 6063-T5 aluminium |
| Fin thickness | 0.4 mm |
| Fin pitch | 3.0 mm |
| Fin height | 35 mm |
| Base thickness | 2.0 mm |
| Base flatness | 0.05 mm over 100 mm |
| Thermal resistance | 0.62 K/W |
| Thermal test condition | ΔT = 60 K, natural convection |
| Surface finish | clear anodize Type II, 5-10 µm |
| Size range | 80 x 60 x 35 mm |
Every lot is inspected with optical comparator 0.002 mm, and the report is included in the shipment. We check 0.05 mm over 100 mm, 3.0 mm, 2.0 mm and hole position against ±0.15 mm. Lot traceability from coil to carton is kept for 10 years.
Prototype is 5 working days from drawing approval; production is 12 working days after the first article is signed off. Tooling for a new part takes . We quote FOB Guangzhou, and sea freight to Europe runs about 25 to 30 days after booking.
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6063-T5 aluminium is the standard choice. For industrial PLC and control cabinet in a corrosive environment we specify 6063-T5 with clear anodize Type II, 5-10 µm; for the highest conductivity we move to copper C110, which raises cost and weight but drops thermal resistance by roughly half at the same envelope.
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With 0.4 mm fins and standard PE bag + export carton, 20 kg per carton, damage is rare. For heavy sea routes or automated handling we suggest double-layer interleaving, which we can specify at no tooling cost. We have shipped 800,000 pcs per month this way without a transit claim in the last 3 years.
Skived fins are milled, so you get thin, tall fins and higher density in a given height, but the cost scales directly with fin area. Stamping gives the same result in one stroke at a much lower unit cost below 800,000 pcs. For industrial PLC and control cabinet in a fixed-height enclosure, stamped is normally the right answer.
The line sits in Dongguan in a single ISO9001 plant. 63 T presses cover the aluminum heat sinks family, and 800,000 pcs per month is current committed output.
Production runs on 12 s cycles with in-line vision on 0.05 mm over 100 mm. That is what keeps a 800,000 pcs commitment credible in peak season.
We quote FOB Guangzhou and hold 50 pcs for sampling. Sampling is free sample with drawing, 5-7 days, so a first evaluation does not require a production commitment.
Request a quote: sc@bquq.com | WhatsApp +86 13713157787 | Dongguan, China
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| Parameter | Value / Range |
|---|---|
| Material | 6063-T5 aluminium |
| Tolerance | ±0.03 mm tooling; ±0.15 mm hole position; 0.05 mm flatness over 100 mm |
| Lead time | Not specified in article |
| MOQ | Not specified in article |
| Capacity | 800,000 pcs line; 12 s cycle |
| Option | Best for | Trade-off |
|---|---|---|
| One-piece stamped heat sink | Industrial PLC and control cabinet volume programs | Requires tooling; geometry fixed after tool build |
| Two-part bonded cooler | Low-volume or prototype builds | Adhesive layer adds thermal resistance and a joint that can fail |
| Machined heat sink | Complex features or small quantities | Anodize can be cut through at fin roots; higher part cost scaling with complexity |
| Stage | Control | Record |
|---|---|---|
| Forming | Single 63 T stroke; 12 s cycle; ±0.03 mm tooling | Dimensional identity across batch |
| Flatness | 2.0 mm base verified flat to 0.05 mm over 100 mm | Verified before dispatch |
| Hole position | ±0.15 mm carried across batch | Batch dimensional record |
| Surface finish | Clear anodize Type II, 5-10 µm applied after forming | Corrosion protection at fin roots |
| Inspection | Inspection before every shipment | Pre-shipment verification |
The 6063-T5 aluminum heat sinks reach 0.62 K/W thermal resistance. This is achieved with 0.4 mm fins at 3.0 mm pitch and a 2.0 mm base, formed as one piece so there is no brazed joint or adhesive layer adding resistance to the thermal path.
The 2.0 mm base is verified flat to 0.05 mm over 100 mm before dispatch. This flatness is held directly from the tool, which keeps thermal interface contact uniform. The one-piece stamped geometry removes the adhesive layer found in two-part coolers.
The heat sinks are made from 6063-T5 aluminium with a clear anodize Type II finish of 5-10 µm. The anodize is applied after forming, so corrosion protection does not get cut through at the fin roots the way it does on machined alternatives.
Fins measure 0.4 mm at 3.0 mm pitch. The base is 2.0 mm thick. These dimensions are formed in a single 63 T stroke, and the tooling runs ±0.03 mm, so every stroke is dimensionally identical across the batch.
A single 63 T stroke forms the whole heat sink in a 12 s cycle, feeding an 800,000 pcs line. Because the base and fins are pressed as one piece, part cost stops scaling with complexity, making industrial PLC and control cabinet volume programs repeatable.
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Hole position is held to ±0.15 mm and carries across the batch. This is possible because every stroke is dimensionally identical. Tooling runs ±0.03 mm, and the one-piece geometry removes the adhesive layer found in two-part coolers.
They are engineered for industrial PLC and control cabinet applications. The 0.62 K/W thermal resistance, 0.4 mm fins at 3.0 mm pitch, and 0.05 mm over 100 mm flatness make them suitable for volume programs where repeatable thermal interface contact matters.
| Parameter | Value / Range |
|---|---|
| Material | 6063-T5 aluminum |
| Tolerance | ±0.03 mm tooling; ±0.15 mm hole position |
| Lead time | Standard for this process |
| MOQ | Standard for this process |
| Capacity | 800,000 pcs line |
| Option | Best for | Trade-off |
|---|---|---|
| One-piece stamped heat sink | Uniform thermal contact, no joint failure | Limited to stamping geometry |
| Two-part bonded cooler | Complex shapes | Adhesive layer adds thermal resistance |
| 6063-T5 aluminum | Good thermal conductivity and formability | Lower strength than some alloys |
| 0.4 mm fin at 3.0 mm pitch | High surface area, 0.62 K/W | Fragile fins require careful handling |
| 2.0 mm base flat to 0.05 mm/100 mm | Uniform interface contact | Requires precise tooling |
The 6063-T5 aluminum heat sinks achieve 0.62 K/W thermal resistance with 0.4 mm fins at 3.0 mm pitch and a 2.0 mm base. This performance is verified before dispatch, ensuring consistent thermal management for industrial PLC and control cabinet applications.
The 2.0 mm base is held flat to 0.05 mm over 100 mm. This flatness is maintained directly from the tool, which ensures uniform thermal interface contact and reliable heat dissipation in your assembly.
A single 63 T stroke forms each part in a 12 s cycle, supporting an 800,000 pcs line. This high-volume capacity ensures we can meet large orders with consistent dimensional accuracy of ±0.15 mm hole position.
Further technical detail: How to Inspect Stamped Parts: Key Dimensions and Quality Checks.
We hold ±0.15 mm hole position tolerance, with tooling running at ±0.03 mm. These tolerances are standard for our stamped aluminum heat sinks and are verified through inspection before every shipment.
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A one-piece stamped heat sink eliminates the brazed joint or adhesive layer found in two-part coolers. This removes a potential failure point and cuts the thermal path, as nothing sits between the 6063-T5 aluminum and the airflow except the stamped surface itself.
The heat sinks are made from 6063-T5 aluminum. This alloy offers good thermal conductivity and formability, suitable for stamping into one-piece designs with 0.4 mm fins at 3.0 mm pitch and a 2.0 mm base.
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Every shipment undergoes inspection. We verify flatness to 0.05 mm over 100 mm, hole position to ±0.15 mm, and tooling tolerance to ±0.03 mm. Records are kept for each batch to ensure traceability and consistent quality.
| Parameter | Specification |
|---|---|
| Material | 6063-T5 aluminium |
| Fin thickness | 0.4 mm |
| Fin pitch | 3.0 mm |
| Fin height | 35 mm |
| Base thickness | 2.0 mm |
| Base flatness | 0.05 mm over 100 mm |
| Thermal resistance | 0.62 K/W |
| Surface finish | clear anodize Type II, 5-10 µm |
| Monthly capacity | 800,000 pcs |
| MOQ (prototype) | 50 pcs |
| Lead time (production) | 12 working days |
| Size range | 80 x 60 x 35 mm |
