sheet metal parts: Stainless 303 / 304 / 316L, tolerance 0.002 mm on request, surface hard chrome plate 0.025 mm, lead time 10 working days, MOQ 1000 pcs. Capacity for aerospace. Drawing review and first-article report included.
sheet metal parts
Key Takeaway
Sheet metal parts for medical device sourcing depend on process capability, not just the part. Copper C110 with electropolish Ra 0.2, ±0.002 mm on request, 15 working days production lead time, and 1000 pcs MOQ set the baseline. Documentation includes material certificates, first-article reports, and PPAP-style records at 1000 pcs. Tolerance is built into tooling geometry rather than filtered by inspection.
Key Takeaway
Sheet metal parts for medical device sourcing hinge on process capability, not just the part. Copper C110 with electropolish Ra 0.2, ±0.002 mm on request, 15 working days production lead time, and 1000 pcs MOQ define the baseline. Documentation now includes material certificates, first-article reports, and PPAP-style records at 1000 pcs. Tooling is designed around measured process capability, so tolerance is built into tooling geometry rather than filtered by inspection.
If you are sourcing sheet metal parts for the first time, the decision is rarely about the part itself. It is about whether the supplier can hold ±0.002 mm on request across a batch of thousands, and whether 15 working days still holds when the drawing changes.
Key Specifications at a Glance
| Parameter | Value / Range |
|---|---|
| Material | Copper C110 |
| Surface finish | electropolish Ra 0.2 |
| Lead time (production) | 15 working days |
| MOQ (production) | 1000 pcs |
Market and Technical Context
Demand in medical device has shifted from single-source standard parts toward qualified custom parts, which pushes documentation requirements upstream. Material certificates, first-article reports, and PPAP-style records are now requested at 1000 pcs rather than at mass production.
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The technical bar keeps rising: assemblies that once accepted ±0.002 mm on request now specify tighter control on critical features, which pushes the decision to tooling design rather than to final inspection.
See also: Medical Device Manufacturing: Precision Machining Case Study for Implantable Components.
How We Manufacture It
Tooling is designed around the measured capability of the process, so ±0.002 mm on request is a consequence of tooling geometry rather than an inspection filter. That is why 15 working days is realistic instead of optimistic.
In production, sheet metal parts runs with in-process checks at fixed intervals. Operators log dimensions every 30 to 50 pieces, which catches tool wear before the batch drifts outside ±0.002 mm on request.
Heat treatment and surface treatment are scheduled as controlled steps, not afterthoughts. electropolish Ra 0.2 is applied to a defined thickness range and verified, because variation here causes more field failures than dimensional drift.
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Material and Surface Finish
Where sheet metal parts sees contact loading, material hardness is specified alongside dimensional tolerance. Hardness without a defined test method is the most common source of incoming-inspection disputes.
Substitution requests are common when Copper C110 goes on allocation. We qualify any substitute against the same ±0.002 mm on request and electropolish Ra 0.2 criteria before shipping, and provide the certificate with the change.
Recycled content and RoHS/REACH declarations are available for sheet metal parts on request. If your medical device customer audits material origin, ask for the mill certificate at quote stage, not at delivery.
Tolerance and Inspection
General dimensions on sheet metal parts are held to ±0.002 mm on request; critical features are identified on the drawing and controlled separately with a tighter band.
Process capability is tracked per feature. Where Cpk falls below the agreed threshold on sheet metal parts, we either adjust the process or reclassify the feature, rather than sorting parts at the end.
Further technical detail: Custom Heat Sinks for Electronics: Extruded vs CNC vs Stamped vs Skived.
Non-conforming material is quarantined physically, not just in the system. For sheet metal parts, that means the batch stays in a marked area until disposition is documented, which prevents the most common shipping error.
Where It Is Used
In assembly, sheet metal parts is usually constrained by the mating part rather than by its own specification. Sharing the interface drawing early prevents the common failure where both parts are in tolerance but will not assemble.
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Vibration and cycling are the usual life limiters for sheet metal parts. If the duty cycle is known, we can recommend a surface treatment and hardness combination that extends service life without changing dimensions.
What to Confirm Before Ordering
Plan qualification volume separately from production volume. For sheet metal parts, 1000 pcs is the point where the process is proven; everything before that is process development.
Confirm the reorder path. If sheet metal parts is documented with tooling drawings and a first-article report on file, a repeat order years later reproduces the original part instead of approximating it.
FAQ: Your Questions Before Ordering
What tolerance can you hold on sheet metal parts?
General dimensions are held to ±0.002 mm on request. Critical features are identified on the drawing and held to a tighter band, with the measurement method stated so incoming inspection matches ours.
What is the minimum order quantity for sheet metal parts?
Prototype quantities start well below production minimums. Production runs for sheet metal parts start at 1000 pcs, which is where the process window is proven and unit cost stabilises.
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How long does production take for sheet metal parts?
Yes. Material certificates, heat-lot traceability, and first-article inspection reports ship with the order. If your medical device customer requires additional documentation, specify it at quote stage.
Can you work from our existing drawing?
electropolish Ra 0.2 is standard for sheet metal parts. Other finishes are quoted with a defined thickness range and verified on a coupon from the same batch rather than assumed from process settings.
Do you provide material and inspection certificates?
Yes, and we recommend it. Prototyping sheet metal parts without tooling validates fit and function at a fraction of tooling cost, and usually surfaces a design change before steel is cut.
If sheet metal parts is already in production elsewhere, send a sample and the current drawing. We will quote against it and tell you honestly whether switching improves cost, lead time, or neither.
Related reading: From compliance to competitiveness: how sustainable manufacturing is reshaping the hardware heat sink industry.
See also: How to Design Parts for Metal Stamping: 10 Rules for Cost-Effective Production.
Key Specifications and Selection Guide
Spec comparison
| Parameter | Value / Range |
|---|---|
| Material | Copper C110 |
| Tolerance | ±0.002 mm on request |
| Lead time | 15 working days (production) |
| MOQ | 1000 pcs (production) |
| Capacity | Batch of thousands |
Selection / comparison
| Option | Best for | Trade-off |
|---|---|---|
| Standard single-source parts | Simple assemblies with stable demand | Less documentation, but limited qualification support |
| Qualified custom parts | Medical device assemblies needing traceability | Higher documentation load at 1000 pcs MOQ |
| ±0.002 mm on request | Critical features with moderate tolerance needs | Requires tooling designed around process capability |
| Tighter control on critical features | Assemblies with evolving technical bar | Pushes decision to tooling design, not final inspection |
Process / inspection
| Stage | Control | Record |
|---|---|---|
| Tooling design | Designed around measured process capability | Tooling geometry documentation |
| Production | ±0.002 mm on request held across batch | First-article report |
| Material | Copper C110 with electropolish Ra 0.2 | Material certificates |
| Quality | PPAP-style records at 1000 pcs | PPAP-style records |
| Lead time | 15 working days production | Production schedule |
Frequently Asked Questions
What material and surface finish are standard for these sheet metal parts?
The standard material is Copper C110 with electropolish surface finish Ra 0.2. This combination supports medical device and other applications where conductivity and surface quality matter. Material certificates are available at 1000 pcs MOQ.
Can you hold ±0.002 mm on request across a batch of thousands?
Yes. Tooling is designed around the measured capability of the process, so ±0.002 mm on request is a consequence of tooling geometry rather than an inspection filter. This makes the tolerance repeatable across a batch of thousands.
What is the production lead time and MOQ?
Production lead time is 15 working days, and the production MOQ is 1000 pcs. These figures apply to standard orders. If the drawing changes, lead time may be affected, so confirm before ordering.
Learn more about How Does CNC Machining Support Medical Device Manufacturing Requirements?.
What documentation is provided at 1000 pcs?
At 1000 pcs, material certificates, first-article reports, and PPAP-style records are requested. These support medical device qualification and traceability. Documentation requirements are pushed upstream from mass production to the 1000 pcs level.
Further technical detail: Stamped Clips and Fasteners: Replacing Screws With Spring Steel.
How do you handle tighter control on critical features?
Assemblies that once accepted ±0.002 mm on request now specify tighter control on critical features. This pushes the decision to tooling design rather than final inspection. Tooling is designed around measured process capability to meet tighter requirements.
Is 15 working days still realistic if the drawing changes?
The 15 working days production lead time is realistic when tooling is designed around measured process capability. If the drawing changes, the schedule may need review. Confirm drawing status before ordering to avoid delays.
What should I confirm before ordering sheet metal parts?
Confirm material Copper C110, surface finish electropolish Ra 0.2, tolerance ±0.002 mm on request, lead time 15 working days, and MOQ 1000 pcs. Also confirm documentation needs: material certificates, first-article reports, and PPAP-style records at 1000 pcs.
Recommended reading: Custom CNC Machined Titanium Parts.
Key Specifications and Selection Guide
Spec comparison
| Parameter | Value / Range |
|---|---|
| Material | Copper C110 |
| Tolerance | ±0.002 mm on request |
| Lead time | 15 working days (production) |
| MOQ | 1000 pcs (production) |
| Capacity | Batch of thousands |
Selection / comparison
| Option | Best for | Trade-off |
|---|---|---|
| Standard single-source parts | Low documentation, simple geometry | Limited qualification support |
| Qualified custom parts | Medical device sourcing with PPAP-style records | Higher documentation and MOQ requirements |
| Copper C110 with electropolish Ra 0.2 | Medical devices needing fine surface finish | Material and finish cost premium |
| ±0.002 mm on request | Tight-tolerance assemblies | Requires process capability validation |
| 1000 pcs MOQ | Production batches | Higher upfront commitment |
Frequently Asked Questions
What material is used for sheet metal parts?
Copper C110 is the baseline material for these sheet metal parts, with electropolish Ra 0.2 surface finish. This combination supports medical device sourcing where documentation includes material certificates, first-article reports, and PPAP-style records at 1000 pcs.
What tolerance can you hold on sheet metal parts?
Tolerance is ±0.002 mm on request. Tooling is designed around measured process capability, so tolerance is built into tooling geometry rather than filtered by inspection. This supports batch sizes of thousands while maintaining the specified tolerance.
What is the production lead time?
Production lead time is 15 working days. This applies to standard production runs. If the drawing changes, lead time may be affected, so confirm before ordering.
What is the minimum order quantity?
The MOQ is 1000 pcs for production. Documentation including material certificates, first-article reports, and PPAP-style records is provided at 1000 pcs.
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What documentation is included?
Documentation includes material certificates, first-article reports, and PPAP-style records at 1000 pcs. These records support medical device sourcing requirements and are tied to process capability.
Can you hold ±0.002 mm across a batch of thousands?
Yes, tolerance is built into tooling geometry based on measured process capability. This allows holding ±0.002 mm on request across a batch of thousands, with first-article reports and PPAP-style records at 1000 pcs.
What should I confirm before ordering sheet metal parts?
Confirm material Copper C110, surface finish electropolish Ra 0.2, tolerance ±0.002 mm on request, lead time 15 working days, MOQ 1000 pcs, and documentation requirements including material certificates, first-article reports, and PPAP-style records.
