custom spring headbands: , fins at pitch, flatness, thermal resistance. MOQ 1000 pcs, ships in 7 working days.
custom spring headbands: , fins at pitch, flatness, thermal resistance. MOQ 1000 pcs, ships in 7 working days.
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Custom spring headbands are stamped as a one-piece base-and-fin geometry, so the die forms every fin in one stroke and fin pitch stays within tolerance across a run. Flatness on the mounting face is held directly from the tool, and every batch ships with a CMM report. Tooling runs and the cycle feeds a line, with hole position carrying across the batch for repeatable volume programs.
Custom spring headbands are stamped as a one-piece base-and-fin geometry, giving repeatable fin pitch within a run and flatness held directly from the tool. The die forms every fin in one stroke, so part cost stops scaling with complexity, and every batch ships with a CMM report. Tooling runs and the cycle feeds a line, with hole position carrying across the batch for repeatable volume programs.
A custom spring headbands in delivers thermal resistance under . Fins are thick at pitch over a base, and every batch ships with a CMM report at .
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Stamping gives a repeatable fin profile that extrusion cannot hold: the die forms every fin in one stroke, so pitch stays within across a run.
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Because the base and fins are pressed as one piece, there is no brazed joint to fail. flatness on the mounting face is held directly from the tool, which keeps thermal interface contact uniform.
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A single stroke forms the whole custom spring headbands, so part cost stops scaling with complexity. Tooling runs , and the cycle feeds a line.
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The one-piece geometry removes the adhesive layer found in two-part coolers, cutting the thermal path. Nothing sits between and the airflow except the stamped surface itself.
Every stroke is dimensionally identical, so hole position carries across the batch. That is what makes safety lanyard volume programs repeatable.
The standard material is , supplied with . For applications where safety lanyard 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 ±0.5 mm, with critical features such as held separately. Formed geometry inherits tooling repeatability of , and hole position is held to . Tighter classes need an extra press operation, so it is worth deciding before tooling rather than after.
Each batch carries a CMM report from . We record flatness, pitch, base thickness and hole position, and flag anything outside ±0.5 mm before it leaves the line.
Sampling is AQL 0.65 for critical dimensions and 1.5 for general, with on every first article. Deviations beyond ±0.5 mm trigger a full-lot sort.
Recommended reading: Tolerance Stack-Up in Machined Assemblies.
Lot traceability runs from coil to carton: heat number, press stroke range and inspection record stay attached, so a field issue can be tied back to a specific run.
Final containment is . Every carton is labelled with lot, quantity and inspection status, and the record is kept for 10 years against the ISO9001 file.
In safety lanyard, the rating determines how much airflow the enclosure still needs. At safety lanyard junction temperatures, fins at pitch keep the delta-T inside the sensor budget.
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safety lanyard customers typically specify for corrosion reasons and then hold the drawing to ±0.5 mm. The line absorbs the volume without a second source.
In safety lanyard, the base usually doubles as the mounting interface. with flat gives a stable surface for the safety lanyard thermal pad.
safety lanyard designs often run a 2.0 m/s forced-air path. at means safety lanyard can hold its target with fan power below the acoustic limit.
| Parameter | Value / Range |
|---|---|
| General tolerance | ±0.5 mm |
| MOQ (prototype) | 1000 pcs |
| MOQ (production) | 5000 pcs |
| Lead time (prototype) | 7 working days |
| Lead time (production) | 20 working days |
General dimensions run to ±0.5 mm; critical ones such as are held separately. Formed features inherit tooling repeatability of . If your drawing needs tighter, tell us before tooling so we can plan the extra press operation.
Extrusion is cheaper above roughly 500,000 pieces per year and gives a smoother profile. Stamping wins below that and wherever fin gauge drops below 0.5 mm, because extrusion cannot hold consistently. For safety lanyard prototypes, tooling cost usually decides it.
Yes, we ship as-pressed for customers who do their own finishing. The risk is handling marks on fins, so we pack those parts with interleaving sheets inside .
With fins and standard , 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 per month this way without a transit claim in the last 3 years.
Yes. We can add clips, screws or a fan shroud as a kitted assembly, with the parts bagged and labelled per set. This is common in safety lanyard programs and adds about 3 working days.
Source-direct from Dongguan: coil stock, forming, surface treatment and inspection happen in one building, so flatness is verified before the part is packed.
Our safety lanyard experience runs back to the first tooling programme in 2015. That history is why the standard and ±0.5 mm are conservative rather than optimistic.
We quote and hold 1000 pcs for sampling. Sampling is , so a first evaluation does not require a production commitment.
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Request a quote: sc@bquq.com | WhatsApp +86 13713157787 | Dongguan, China
| Parameter | Value / Range |
|---|---|
| Material | Standard material supplied with passivated option for exposure concerns |
| Tolerance | Pitch held within across a run; flatness on mounting face held directly from tool |
| Lead time | Tooling runs; cycle feeds a line |
| MOQ | Volume programs supported; batch-level repeatability |
| Capacity | Single-stroke die forms whole part; every stroke dimensionally identical |
| Option | Best for | Trade-off |
|---|---|---|
| Stamped one-piece | Repeatable fin profile and uniform thermal interface contact | Requires tooling; best for volume programs |
| Extrusion | Simple continuous profiles | Cannot hold fin pitch as consistently as stamping |
| Two-part cooler with adhesive | Lower tooling complexity | Adds adhesive layer, lengthens thermal path, brazed joint can fail |
| Passivated finish | Exposure concerns | May trade off conductivity versus weight-sensitive applications |
| Conductivity-focused finish | Conductivity matters more than weight | May not prioritize exposure resistance |
| Stage | Control | Record |
|---|---|---|
| Stamping | Die forms every fin in one stroke; pitch stays within across a run | Dimensional identity stroke to stroke |
| Base and fin forming | Pressed as one piece; no brazed joint to fail | One-piece geometry documented |
| Flatness | Mounting face flatness held directly from the tool | Keeps thermal interface contact uniform |
| Hole position | Carries across the batch | Supports safety lanyard volume programs |
| Final inspection | Every batch ships with a CMM report | CMM report at |
Stamping forms every fin in one stroke, so pitch stays within across a run. Extrusion cannot hold that fin profile as consistently. Because the base and fins are pressed as one piece, there is no brazed joint to fail, and flatness on the mounting face is held directly from the tool for uniform thermal interface contact.
The one-piece geometry removes the adhesive layer found in two-part coolers, cutting the thermal path. Nothing sits between the base and the airflow except the stamped surface itself. That direct path supports thermal resistance under the specified target while keeping flatness on the mounting face held directly from the tool.
The standard material is supplied with a passivated route recommended where exposure is a concern. Where conductivity matters more than weight, an alternative finish can be selected. Both routes are compatible with the stamped one-piece geometry and the CMM report supplied with every batch.
Yes. Every stroke is dimensionally identical, so hole position carries across the batch. That is what makes safety lanyard volume programs repeatable. The die forms every fin in one stroke, and the cycle feeds a line, so batch-to-batch variation is controlled without secondary hole operations.
Every batch ships with a CMM report at the specified tolerance. Inspection covers the stamped fin profile, pitch within across a run, flatness on the mounting face, and hole position across the batch. This record supports repeatable safety lanyard volume programs and confirms the one-piece geometry.
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No. A single stroke forms the whole custom spring headbands, so part cost stops scaling with complexity. Tooling runs and the cycle feeds a line. Because the base and fins are pressed as one piece, there is no brazed joint to fail and no adhesive layer to add cost or thermal resistance.
Learn more about How Heat Sinks Are Tested: Thermocouples, Wind Tunnels and Spec Sheets.
Flatness on the mounting face is held directly from the tool, which keeps thermal interface contact uniform. The die forms every fin in one stroke, so pitch stays within across a run. Every batch ships with a CMM report at the specified tolerance to verify the mounting face and fin profile.
| Parameter | Value / Range |
|---|---|
| Material | Stamped metal base and fin, one-piece construction |
| Tolerance | Fin pitch held within tolerance across a run; flatness held directly from the tool |
| Lead time | Tooling runs and the cycle feeds a line; batch timing depends on tooling and run schedule |
| MOQ | Not specified in the article; volume programs are supported |
| Capacity | Repeatable volume programs with hole position carrying across the batch |
| Option | Best for | Trade-off |
|---|---|---|
| Stamped one-piece base-and-fin | Repeatable fin pitch and flatness from the tool | Requires tooling; geometry is set by the die |
| Extruded fin profile | Simpler profiles where extrusion can hold shape | Cannot hold the repeatable fin profile that stamping gives |
| Two-part cooler with adhesive layer | Applications where a bonded joint is acceptable | Adds an adhesive layer and a brazed joint that can fail |
| Brazed joint construction | When a joined assembly is required | There is a brazed joint to fail and an extra thermal path layer |
| One-piece stamped headband | Thermal interface contact uniformity and volume programs | Part cost stops scaling with complexity, but tooling is needed |
Stamping gives a repeatable fin profile that extrusion cannot hold. The die forms every fin in one stroke, so pitch stays within tolerance across a run. The base and fins are pressed as one piece, so there is no brazed joint to fail.
Further technical detail: Sourcing Heat Sinks: Capability and Tooling Questions.
Flatness on the mounting face is held directly from the tool. Because the base and fins are stamped as a one-piece geometry, the die sets the flatness, which keeps thermal interface contact uniform across the batch.
A single stroke forms the whole custom spring headbands, so part cost stops scaling with complexity. The die forms every fin in one stroke, and tooling runs and the cycle feeds a line for repeatable volume programs.
Every batch ships with a CMM report. Flatness on the mounting face is held directly from the tool, and hole position carries across the batch for repeatable volume programs, so the report reflects the tooled geometry.
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The one-piece geometry removes the adhesive layer found in two-part coolers, cutting the thermal path. Nothing sits between the base and the fin, and there is no brazed joint to fail, which keeps thermal interface contact uniform.
Yes. Hole position carries across the batch for repeatable volume programs. Tooling runs and the cycle feeds a line, and the die forms every fin in one stroke, so pitch stays within tolerance across a run.
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Specify the one-piece base-and-fin geometry, fin pitch within tolerance across a run, flatness on the mounting face held directly from the tool, and hole position for your volume program. Every batch ships with a CMM report.
| Parameter | Specification |
|---|---|
| MOQ (prototype) | 1000 pcs |
| Lead time (production) | 20 working days |
