A beauty brand launches an electric hair transplant comb, the industrial designer draws a sleek handle, and the engineering team realizes the same shell must hold a blade carrier, a motor path, a battery compartment, and a surface that survives clinic alcohol wipes. That is not a styling problem. It is a precision plastic injection mould problem. Electric Hair Transplant Comb​ becomes a real product only when the tool shop can balance material choice, gate flow, cavity count, and surface finish without turning the handle into a squeaky commodity toy.
The search-ready phrase is Electric Hair Transplant Comb precision plastic injection mould PA PA6/6+GF ABS POM PC PP PET PVC HDPE hot cold runner 300000-1000000 shots single multi cavity UG PROE CAD beauty instrument personal care product housing power bank Bluetooth medical device shell from Shenzhen Guangdong szplastic-injection.
Can a personal care housing carry blade seats, battery space, and clinic-grade surfaces in one tool, why does PA6/6+GF beat plain ABS near the blade carrier, and how does a Guangdong mould shop run a hair transplant comb on the same tolerance regime as power bank, Bluetooth, and medical device shells.

Precision plastic injection mould logic before decoration

The product is listed as a precision mold program. Shaping mode is Plastic Injection Mould. Place of origin is Guangdong, China Mainland.
That matters because the comb is not one plastic part. It is a system:
  • outer housing that the hand grips
  • inner blade carrier that must stay dimensionally stable
  • battery compartment boss for the cell and PCB
  • button or slider path for the personal care function
  • sealing groove or soft-touch zone for clinic use
If the tool is designed like a cheap comb, the blade seat warps after five procedures. If it is designed like a medical device shell, the same mould discipline protects the user and the brand.

Material list decides where each plastic lives

The szplastic-injection material menu covers Plastic, PA, PA6/6+GF, ABS, POM, PC, PP, PET, PVC, HDPE, and any color available.
A hair transplant comb usually splits materials by function:
  • PA6/6+GF​ — blade carrier, structural ribs, creep-resistant seat
  • ABS​ — cost-controlled outer shell, easy to texture and paint
  • PC or PC/ABS​ — impact zone, heat near charged electronics, premium feel
  • POM​ — button caps, slider arms, friction parts that cycle thousands of times
  • PP / HDPE / PET / PVC​ — secondary clips, liners, or lower-load parts
  • any color​ — brand pantone, clinic white, matte black, soft-touch TPE overmold zone
Plain ABS scratches on the clinic alcohol wipe and heats under a 20-minute charge. Glass-filled nylon keeps the blade seat rigid. PC/ABS keeps the grip shell from feeling like a toy. The material split is the product spec, not a purchasing afterthought.

Hot runner or cold runner changes piece price and gate quality

Runner type is Hot/Cold Runner. Cavity is Single or Multi Cavity. Mould life is 300000-1000000 shots.
For a personal care OEM ramping from pilot units to monthly production:
  • single cavity is for validation, bridge tooling, and design lock
  • 2 or 4 cavity cold runner fits PA6/6+GF blade parts where gate freeze-off matters
  • multi cavity hot runner fits ABS/PC shells where sprue trimming kills margin
  • 300k shot life suits a validated personal care SKU
  • 1M shot life suits export volumes across multiple clinic markets
A hot runner swap is the unit-cost lever. A cold runner with the right submarine gate is the quality lever for glass-filled nylon. The comb programme can use both on different inserts instead of buying two factories.

UG PROE CAD and CNC milling grinding keep the groove round

Machines include CNC, Milling, Grinding. Design software includes UG, PROE, CAD.
That combination is what stops the common personal care failure: the sealing groove comes out oval, the blade screw boss is off by a few tenths, and the battery cover rattles.
With UG CAM and PROE surfacing:
  • 0.02 mm class grooves and bosses are cut, not guessed
  • brass or steel insert for blade screw is positioned in the same tolerance regime
  • battery compartment boss aligns with the PCB and cell cage
  • surface texture, polish, paint, metallize, or laser etch is planned before steel is cut
The same CNC milling and grinding hall that builds Bluetooth headsets and medical probes can build the comb housing. The shape changes. The tolerance discipline does not.

Surface treatment as customer request, not as catalogue limit

Surface treatment is As customer’s request. That sounds soft, but for personal care it is the brand layer.
Options on the same tool platform:
  • high polish for premium clinic look
  • matte MT texture for grip and fingerprint hiding
  • soft-touch coating for comfort during long procedures
  • paint or UV print for logo and grade marks
  • metallize for high-end beauty instrument shelf appeal
  • laser etch for serialisation and medical traceability
A hair transplant comb sold next to a power bank and a medical handle cannot look like a hardware-store comb. Surface treatment turns the moulded part into a brand object.

Eleven-step workflow from contract to return visit

The szplastic-injection process is not “send STL, get parts.” It is a controlled programme:
  1. scheme initially confirmed by both parties
  2. formal cooperation contract signed
  3. customer pays down payment
  4. preliminary R&D communication on beauty instrument and personal care needs
  5. mould development plan submitted and confirmed
  6. mould design completed, sampling produced
  7. customer inspects and confirms samples
  8. mass production by order quantity and standards
  9. customer pays balance before shipment
  10. full inspection, then shipment arranged
  11. goods receipt confirmation and after-sales follow-up
Sample confirmation protects both sides. If the sample is not approved, it is modified and re-sampled until confirmed. After shipment, the shop follows up with usage guidance, quality assurance, and regular return visits.
That workflow is why the same Guangdong mould house can run an Electric Hair Transplant Comb, a power bank enclosure, a Bluetooth headset case, and a medical device shell without confusing the documentation.

Cross-sell: comb, power bank, Bluetooth, medical shell on one PO

The site header says Precision Electronic Enclosures Manufacturer, Power Bank, Bluetooth, Medical Device Shells.
A personal care brand can qualify the comb tool and then extend the same supplier relationship:
  • Electric Hair Transplant Comb housing and blade carrier
  • beauty instrument shell with LED window and seal groove
  • power bank enclosure with cell cage and USB boss
  • Bluetooth headset case with antenna keeper and slider
  • medical device shell with polished cavity and traceable steel cert
One DFM review, one mould base philosophy, one inspection regime. The buyer does not re-explain wall thickness rules to a second vendor.

Who asks for this comb mould programme

Beauty instrument OEM launching a clinic-grade hair transplant comb under its own brand.
Personal care brand needing PA6/6+GF blade seat plus ABS/PC grip shell.
Medical aesthetics importer wanting traceable mould docs and sample confirmation.
Electronics enclosure buyer bundling comb, power bank, and Bluetooth shells in one PO.
Contract manufacturer needing single or multi cavity tools with 300k-1M shot life.

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