The busbar bottom shell and upper cover
1、PPA GF15 Material, Excellent Insulation Stability; 2、Injection Molding Process, Precise Dimensional Accuracy; 3、Partial Silver Plating Process, Enhanced Conductivity Protection;
View productWoosung Solution delivers custom metal stamping services for miniature electromechanical parts, operating as a stamping parts manufacturer from tool design through continuous stamping, washing and drying. The clearest working example is the N10 Core — a miniature 8.5 × 8.5 × 2.0 mm laminated core stamped from 50W350 electrical steel for N10 series laptop micro motors.
Woosung stamps small precision metal components — laminated cores for laptop micro motors, busbar shell and cover sets, bottom covers and inverter parts — with a documented production route of continuous stamping, washing and drying.
On this page the N10 Core acts as the reference part: stamped from 50W350 electrical steel to a 8.5 × 8.5 × 2.0 mm structure compatible with N10 series motors. Where a figure is not fixed by that build, the engineering team confirms it against your drawing before quotation.Use the index on the right as a checklist: read the module, then decide what to send with your RFQ.
Method drives tooling cost and part consistency more than any other decision. Volume bands, tooling investment and lead time depend on geometry, material and annual quantity — the engineering team confirms them at RFQ rather than quoting a generic range.
| Stamping method | Best fit for | Volume band | Tooling investment | Lead time |
|---|---|---|---|---|
| Progressive / continuous stamping The process used for the N10 Core | High-volume miniature parts where several cutting and forming steps run inside one strip; tight dimensional control on small features. | Specify at RFQ | Specify at RFQ Usually the highest upfront tooling |
Specify at RFQ |
| Compound stamping | Parts that need multiple cuts or forms completed in a single press stroke, where flatness and feature alignment are critical. | Specify at RFQ | Specify at RFQ | Specify at RFQ |
| Single-hit stamping | Simple geometries, low volumes and evaluation or prototype builds before a progressive tool is committed. | Specify at RFQ | Specify at RFQ Lowest upfront tooling |
Specify at RFQ |
Buyer decision: if the part is small, runs at high annual volume and needs repeatable geometry, progressive stamping is the shortlisted route. If the part is a one-off evaluation build, single-hit tooling keeps the commitment low before you scale.
Material choice follows function: magnetic performance, electrical conduction, corrosion resistance or weight. Only the 50W350 grade is documented for a part on this page; the other families are confirmed grade by grade against your drawing.
The grade specified for the N10 Core, chosen for stable core magnetic performance. In the designation, 50W350 the "50" denotes the 0.50 mm nominal thickness class and "350" the maximum core loss class — the mill grade sheet is confirmed at RFQ.
Choose this family when electrical conductivity and heat spreading lead the requirement, as in conductor and busbar-type parts. Grade and plating are matched to your current rating.
Choose stainless when corrosion resistance and structural stiffness matter more than magnetic performance, for example on exposed covers and housing plates.
Choose aluminium when weight reduction and thermal dissipation are the driving constraints, and the magnetic or high-conductivity properties of the other families are not required.
Check your drawing against these attributes. Values marked "Specify at RFQ" are not generic published ranges — they are confirmed by the engineering team for your part, material and annual volume.
One real part, followed from grade selection to finished component. This is the fastest way to see how the process, material and part decisions above connect.
Buyer decision: if your part must hold geometry inside a miniature envelope while carrying magnetic duty, this is the route to benchmark — electrical steel, progressive tooling, controlled finishing.
Get a Precision QuoteStart from the application, not the part number. Each row names the specification that actually decides whether the stamped part works in service.
50W350 electrical steel at 0.50 mm class, produced by continuous stamping with washing and drying.
Magnetic stability has to survive a 8.5 × 8.5 × 2.0 mm footprint inside a laptop micro motor, so grade and stamping consistency matter more than any cosmetic feature.
A bottom shell and upper cover built as a matched set, with material, plating and tolerance stack agreed together.
Mating parts only work when the pair is tooled as one system, so the assembly fit between shell and cover is the acceptance criterion.
Flatness, mounting-hole position and edge condition as the primary controlled features.
A cover that is out of flat will not seat flush and will disturb the stack underneath, so flatness beats decorative detail.
The material, plating and tolerance stack that match the power stage, including clearance around live features.
In power modules the stamped part carries both a thermal path and a clearance duty, so the specification follows the electrical design.
A simple five-stage path. Send the drawing, material grade and annual volume, and the engineering team returns a precision quote with the process and tooling route attached.
OEM/ODM programmes, custom tooling and bulk orders are quoted from your drawing — including miniature cores, shells, covers and power-conversion parts.
Keep adjacent product options together for a faster catalog comparison.
1、PPA GF15 Material, Excellent Insulation Stability; 2、Injection Molding Process, Precise Dimensional Accuracy; 3、Partial Silver Plating Process, Enhanced Conductivity Protection;
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View productwoosung produces precision stamped metal parts such as the n10 core, a laminated core for n10 series laptop micro motors, along with busbar shell and cover sets, bottom covers and inverter parts. the production route runs from tooling through continuous stamping, washing and drying.
the n10 core uses 50w350 electrical steel. in the grade designation, "50" denotes the 0.50 mm nominal thickness class and "350" the maximum core loss class. ask the engineering team to confirm the mill grade sheet against your drawing.
the documented reference is the n10 core at 8.5 × 8.5 × 2.0 mm, designed for micro motor modules. other size ranges are confirmed at rfq once your drawing and feature set have been reviewed.
the product page lists continuous stamping followed by washing and drying, which keeps precision and consistency high for miniature components. the model reference on the specification is 52170000156.
yes. send your drawing, material grade and annual volume through the contact page and the team replies with a precision quote alongside the process and tooling recommendation for your part.
material grade and thickness, part size, tolerance class, annual volume and any documentation or traceability requirements. anything not fixed on this page is confirmed by the engineering team against your drawing before quotation.