aluminum heat sink 150mm: ADC12 die-cast aluminium, 0.8 mm fins at 2.0 mm pitch, 0.15 mm over 100 mm flatness, 0.85 K/W thermal resistance. MOQ 200 pcs, ship...
aluminum heat sink 150mm: ADC12 die-cast aluminium, 0.8 mm fins at 2.0 mm pitch, 0.15 mm over 100 mm flatness, 0.85 K/W thermal resistance. MOQ 200 pcs, ship...
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The aluminum heat sink 150mm in ADC12 die-cast aluminium delivers 0.85 K/W thermal resistance with 0.8 mm fins at 2.0 mm pitch and a 1.0 mm base flat to 0.15 mm over 100 mm. A single 25 T stroke forms each part in an 8 s cycle, holding ±0.03 mm tooling tolerance and ±0.10 mm hole position across an 800,000 pcs line, with weights from 280 g depending on envelope.
The aluminum heat sink 150mm in ADC12 die-cast aluminium delivers 0.85 K/W thermal resistance with 0.8 mm fins at 2.0 mm pitch and a 1.0 mm base flat to 0.15 mm over 100 mm. A single 25 T stroke forms each part in an 8 s cycle, holding ±0.03 mm tooling tolerance and ±0.10 mm hole position across an 800,000 pcs line, with weights from 280 g depending on envelope.
Engineered for VFD and inverter, the aluminum heat sink 150mm in ADC12 die-cast aluminium reaches 0.85 K/W thermal resistance. Fins measure 0.8 mm at 2.0 mm pitch; the 1.0 mm base is verified flat to 0.15 mm over 100 mm before dispatch.
A single 25 T stroke forms the whole aluminum heat sink 150mm, so part cost stops scaling with complexity. Tooling runs ±0.03 mm, and the 8 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 ADC12 die-cast aluminium and the airflow except the stamped surface itself.
Stamped construction tolerates batch variation better than extrusion: die wear shows up first as a measurable shift in fin pitch, which inspection catches at CMM plus granite flatness plate rather than in the field.
Related reading: Planning Lead Times With Chinese Suppliers.
Pressing ADC12 die-cast aluminium keeps the aluminum heat sink 150mm light, from 280 g depending on envelope, without sacrificing fin density, which matters where airflow path length is already fixed by the enclosure.
See also: How to Avoid CNC Machining Design Mistakes: 12 Common Errors and Fixes.
Every stroke is dimensionally identical, so ±0.10 mm hole position carries across the batch. That is what makes VFD and inverter volume programs repeatable.
The standard material is ADC12 die-cast aluminium, supplied with clear anodize Type II, 5-10 µm. For applications where VFD and inverter 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 ±0.20 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 ±0.10 mm. Tighter classes need an extra press operation, so it is worth deciding before tooling rather than after.
Each batch carries a CMM report from CMM plus granite flatness plate. We record flatness, pitch, base thickness and hole position, and flag anything outside ±0.20 mm before it leaves the line.
Flatness is measured on granite rather than on cast iron, because 0.15 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.
We inspect 0.8 mm fin tips for burr and crack after forming, because stamping can split a root without shifting any drawing dimension. Burr limit is set per part.
Final containment is PE bag + honeycomb carton, 15 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.
In VFD and inverter, the 0.85 K/W rating determines how much airflow the enclosure still needs. At VFD and inverter junction temperatures, 0.8 mm fins at 2.0 mm pitch keep the delta-T inside the sensor budget.
Learn more about Round LED Bulb Heatsink Precision CNC Machining.
For VFD and inverter builds, the 0.15 mm over 100 mm mounting face matters as much as the thermal rating: it decides whether thermal interface material spreads evenly or pools at one end.
Further technical detail: What Is Thermal Resistance in Heat Sinks and How Do You Read the Specs?.
Designers working on VFD and inverter ask for flatness before they ask for thermal data, because VFD and inverter assembly is automated and a non-flat base stops the line.
For VFD and inverter 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 | ADC12 die-cast aluminium |
| Fin thickness | 0.8 mm |
| Fin pitch | 2.0 mm |
| Fin height | 15 mm |
| Base thickness | 1.0 mm |
| Base flatness | 0.15 mm over 100 mm |
| Thermal resistance | 0.85 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 |
On ADC12 die-cast aluminium at normal press tonnage, expect a tooling life of roughly . At 800,000 pcs that is 6 to 12 months. We keep spare die sets on site for VFD and inverter programs, which removes the wait if wear shows up in the flatness record.
Standard packing is PE bag + honeycomb carton, 15 kg per carton. We quote FOB Guangzhou. Export cartons are labelled with lot, quantity and inspection status, and full documentation including the inspection report travels with the goods.
We supply a 2D drawing with the CMM report, and 3D STEP on request. Both show flatness callouts and tooling split lines, which matters if you are checking 0.15 mm over 100 mm in your own assembly.
The plant is ISO9001 certified, and parts ship with RoHS and REACH declarations on request. Third-party SGS inspection can be arranged before the container is sealed, which is what most VFD and inverter buyers specify.
The key is avoiding a second metal at the wet contact area. We recommend clear anodize Type II, 5-10 µm and, where the part touches an aluminium chassis, an isolating washer. Tell us the mating material and we will specify the coating accordingly.
The line sits in Dongguan in a single ISO9001 plant. 25 T presses cover the aluminum heat sink 150mm family, and 800,000 pcs per month is current committed output.
Recommended reading: CNC Machining Copper: Tooling and Chip Control.
Our VFD and inverter experience runs back to the first tooling programme in 2015. That history is why the standard clear anodize Type II, 5-10 µm and ±0.20 mm are conservative rather than optimistic.
Production runs on 8 s cycles with in-line vision on 0.15 mm over 100 mm. That is what keeps a 800,000 pcs commitment credible in peak season.
Compare it with Precision CNC Machined Titanium Fasteners for Aerospace.
Request a quote: sc@bquq.com | WhatsApp +86 13713157787 | Dongguan, China
Related reading: How Does Heat Sink Base Thickness Affect Heat Spreading Performance?.
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| Parameter | Value / Range |
|---|---|
| Material | ADC12 die-cast aluminium |
| Tolerance | ±0.03 mm tooling; ±0.10 mm hole position |
| Lead time | Standard for this process; confirmed at order |
| MOQ | Standard for this process; confirmed at order |
| Capacity | 800,000 pcs line; 8 s cycle |
| Option | Best for | Trade-off |
|---|---|---|
| One-piece stamped ADC12 heat sink | VFD and inverter cooling with fixed airflow path | Tooling runs ±0.03 mm and die wear shifts fin pitch measurably |
| Two-part bonded cooler | Prototypes or low-volume builds | Adhesive layer adds thermal resistance to the path |
| Extruded heat sink | Simple constant cross-sections | Batch variation from die wear is harder to control than stamped construction |
| Stage | Control | Record |
|---|---|---|
| Forming | Single 25 T stroke; 8 s cycle | Dimensionally identical stroke output |
| Tooling | ±0.03 mm tooling tolerance | Fin pitch shift from die wear |
| Flatness | 1.0 mm base verified flat to 0.15 mm over 100 mm | Granite flatness plate measurement |
| Hole position | ±0.10 mm across the batch | CMM inspection |
| Pre-shipment | Inspection before every shipment | CMM plus granite flatness plate results |
The aluminum heat sink 150mm in ADC12 die-cast aluminium reaches 0.85 K/W thermal resistance. Fins measure 0.8 mm at 2.0 mm pitch, and the 1.0 mm base is verified flat to 0.15 mm over 100 mm before dispatch, supporting VFD and inverter cooling.
The part is pressed from ADC12 die-cast aluminium. This keeps the aluminum heat sink 150mm light, from 280 g depending on envelope, without sacrificing fin density. The one-piece geometry removes the adhesive layer found in two-part coolers, cutting the thermal path.
Tooling runs ±0.03 mm, and ±0.10 mm hole position carries across the batch because every stroke is dimensionally identical. The 1.0 mm base is verified flat to 0.15 mm over 100 mm. Fin pitch shifts from die wear are caught at CMM plus granite flatness plate.
Recommended reading: Custom Heat Sinks Black Anodized Aluminum.
A single 25 T stroke forms the whole aluminum heat sink 150mm, so part cost stops scaling with complexity. The 8 s cycle feeds an 800,000 pcs line. Stamped construction tolerates batch variation better than extrusion, with die wear showing first as a measurable fin pitch shift.
Pressing ADC12 die-cast aluminium keeps the aluminum heat sink 150mm light, from 280 g depending on envelope, without sacrificing fin density. This matters where airflow path length is already fixed by the enclosure, and the one-piece geometry removes the adhesive layer of two-part coolers.
Yes. Inspection before every shipment includes CMM plus granite flatness plate checks. The 1.0 mm base is verified flat to 0.15 mm over 100 mm before dispatch, and fin pitch shifts from die wear are caught as a measurable change rather than in the field.
Compare it with What Is the Standard Heat Sink Size for TO-220, TO-247 and Other Packages?.
It is engineered for VFD and inverter cooling. The 0.85 K/W thermal resistance, 0.8 mm fins at 2.0 mm pitch, and 1.0 mm base flat to 0.15 mm over 100 mm suit enclosures where airflow path length is already fixed and a one-piece thermal path is required.
| Parameter | Value / Range |
|---|---|
| Material | ADC12 die-cast aluminium |
| Tolerance | ±0.03 mm tooling; ±0.10 mm hole position |
| Lead time | Standard for this process: 15–25 days after tooling approval |
| MOQ | Standard for this process: 1,000 pcs |
| Capacity | 800,000 pcs line; 8 s cycle; 25 T stroke |
| Option | Best for | Trade-off |
|---|---|---|
| ADC12 die-cast aluminium | VFD and inverter cooling with 0.85 K/W | Higher tooling cost than extrusion |
| Extruded aluminium | Simple constant cross-section profiles | Less tolerance to batch variation; die wear shifts fin pitch |
| Two-part bonded cooler | Complex geometries needing separate base | Adhesive layer adds thermal resistance |
| Stamped one-piece construction | Cost stability as complexity increases | Requires 25 T stroke tooling and 8 s cycle control |
The aluminum heat sink 150mm in ADC12 die-cast aluminium delivers 0.85 K/W thermal resistance. This is achieved with 0.8 mm fins at 2.0 mm pitch and a 1.0 mm base flat to 0.15 mm over 100 mm, verified before dispatch.
Fins measure 0.8 mm at 2.0 mm pitch. The 1.0 mm base is verified flat to 0.15 mm over 100 mm. These dimensions are held across the 800,000 pcs line using a single 25 T stroke and 8 s cycle.
Tooling runs ±0.03 mm, and hole position is held to ±0.10 mm. The 1.0 mm base is flat to 0.15 mm over 100 mm. These tolerances are checked with CMM plus granite flatness before every shipment.
A single 25 T stroke forms each part in an 8 s cycle. The line capacity is 800,000 pcs. This one-piece geometry removes the adhesive layer found in two-part coolers, cutting the thermal path.
Weights start from 280 g depending on envelope. The ADC12 die-cast aluminium construction and 0.8 mm fins at 2.0 mm pitch keep mass controlled while delivering 0.85 K/W thermal resistance.
Stamped construction tolerates batch variation better than extrusion. Die wear shows up first as a measurable shift in fin pitch, which inspection catches at CMM plus granite flatness. The one-piece geometry also removes the adhesive layer found in two-part coolers.
It is engineered for VFD and inverter applications. The 0.85 K/W thermal resistance, 0.8 mm fins at 2.0 mm pitch, and 1.0 mm base flat to 0.15 mm over 100 mm suit these cooling duties.
| Parameter | Specification |
|---|---|
| Material | ADC12 die-cast aluminium |
| Fin thickness | 0.8 mm |
| Fin pitch | 2.0 mm |
| Fin height | 15 mm |
| Base thickness | 1.0 mm |
| Base flatness | 0.15 mm over 100 mm |
| Thermal resistance | 0.85 K/W |
| Surface finish | clear anodize Type II, 5-10 µm |
| Monthly capacity | 800,000 pcs |
| MOQ (prototype) | 200 pcs |
| Lead time (production) | 12 working days |
| Size range | 80 x 60 x 35 mm |
