What Are Pointed Tip Cotton Swabs?

Name: Pointed Tip Cotton Swabs - China Pointed Tip Cotton Swabs Manufacturers, Suppliers, Factory - Weston
Brand: Weston
SKU: 308294716

Pointed tip cotton swabs are precision cleaning swabs with a sharply tapered cotton head bonded to a rigid stick, built for targeted application and residue removal in narrow gaps, connectors, and other hard-to-reach areas a round-tip swab can't follow.

Paper Stick Cotton Swabs packaging seal

Core Features

1. Precision-Tapered Tip in 12 Sizes - From Compact Pinpoint Tips to Extra-Long-Reach Designs

The cotton head narrows to a fine point instead of a round ball, so it can trace seams, corners, and fine-pitch component edges. The current WN330–WN341 lineup spans head widths from Ø3.0 mm to 6.5 mm, head lengths from 11.0 mm to 21.0 mm, and total lengths from 64.8 mm up to an extra-long 316.5 mm (WN341) for deep or recessed-cavity reach - a range expanded through Weston's ongoing annual R&D on this product line.

2. RoHS 2.0 Compliance Verified by Third-Party Lab Testing

The swab cotton has been tested for the RoHS 2.0 restricted heavy metals - lead (Pb), cadmium (Cd), chromium (Cr), mercury (Hg), and hexavalent chromium (Cr⁶⁺) - using ICP-OES and UV-Vis spectrophotometry after acid digestion / alkali fusion sample preparation, confirming compliance with RoHS 2.0 limits (Report No. A2260294452104001E). A separate phthalate report (DEHP, DBP, BBP, DIBP) confirms compliance with REACH Annex XVII restricted-substance limits.

3. Halogen-Free and Antimony-Free for Electronics-Safe Cleaning

Fluorine, chlorine, bromine, and iodine were Not Detected by ion chromatography (EN 14582:2016), and antimony was Not Detected by ICP-OES (US EPA 3052:1996 & 6010D:2018) - all below a 10 mg/kg method detection limit, with the sample fully digested before analysis (Report No. A2250810703101001E). Halogen residue is a known corrosion risk on PCB pads, connector pins, and metal contacts, which is why a halogen-free, antimony-free profile matters for swabs used around live electronics.

4. Built in a Class 1000 (ISO Class 6) Cleanroom for Low Particle & Fiber Release

Production takes place in a Class 1000 (Federal Standard 209E) / ISO Class 6 cleanroom, and a particle count / cleanliness report backs up low fiber shedding and particle release - the relevant data point for swabs used on optics, sensors, and other particle-sensitive surfaces.

5. Low Ionic Residue (NVR), Verified Chemical Compatibility & Extractables Profile

An ionic residue / NVR (non-volatile residue) report, a chemical compatibility report, and an extractables analysis are all on file for this cotton material, supporting use cases - optics, semiconductor components, lab instruments - where leftover ionic contamination, solvent-related breakdown, or extractable compounds would compromise the surface being cleaned.

Typical Applications

PCB, connector pin, and fine-pitch component cleaning in electronics assembly and rework
Lens, sensor, and optical component cleaning
Precision machinery, mold, and tooling detail cleaning
Medical device, lab instrument, and sample-handling environments
Jewelry, watch, and small-parts detailing
Cleanroom and semiconductor maintenance tasks requiring low particle release
Deep-cavity, tube, or recessed-assembly cleaning using the extra-long 316.5 mm WN341 design

Model Dimensions

Model	Head Length	Head Width	Stem Width	Total Length
WN330	12.7 mm	Ø3.8 mm	Ø2.8 mm	69.2 mm
WN331	12.5 mm	Ø3.8 mm	Ø2.8 mm	75.0 mm
WN332	12.5 mm	Ø3.8 mm	Ø2.7 mm	68.9 mm

General Specifications

Item	Details
Packaging	100 pcs / bag (standard)
Material	Purified cotton head + green PP stick
Color	Head: white, green, or black (custom available); stick: green PP as standard, custom on request
Cleanroom Class	Class 1000 (ISO Class 6, Fed. STD 209E / ISO 14644-1)

Quality & Compliance Documentation

Test / Item	Result	Standard / Method	Reference
RoHS 2.0 - heavy metals (Pb, Cd, Cr, Hg, Cr⁶⁺)	Compliant	ICP-OES / UV-Vis	Report No. A2260294452104001E
Halogen & antimony content (Sb, F, Cl, Br, I)	N.D., MDL 10 mg/kg	EN 14582:2016 / US EPA 3052 & 6010D:2018	Report No. A2250810703101001E
Phthalate content (DEHP, DBP, BBP, DIBP)	Compliant	REACH Annex XVII	Available on request
Ionic residue / NVR	Low-residue grade	-	Available on request
Particle release / cleanliness	Low particle & fiber release	Class 1000 production	Available on request
Chemical compatibility	Compatible with common cleaning solvents	-	Available on request
Extractables	Low-extractables profile	-	Available on request

Customization Options

12 standard tip sizes (WN330–WN341) covering Ø3.0–6.5 mm heads and 64.8–316.5 mm total lengths, or fully custom dimensions on request
Color: white, green, or black head color, or custom color matching; stick color customizable on request
Packaging: standard 100 pcs/bag, with custom counts, labeling, and private-label packaging available
OEM/ODM branding for bulk and wholesale orders

Frequently Asked Questions

Q: What does "pointed tip" mean on a cotton swab, and how is it different from a round-tip swab?

A: A pointed tip tapers to a narrow point rather than staying round, letting it follow seams, corners, and fine-pitch component edges that a round head can't reach cleanly.

Q: Why does Weston offer 12 different tip sizes for this product?

A: The lineup is updated through ongoing annual R&D based on customer application feedback, expanding the size range to the current 12-model WN330–WN341 series so more gap sizes, reach depths, and use cases are covered without a custom tooling order.

Q: Are these cotton swabs RoHS 2.0 compliant?

A: Yes. Independent lab testing of the cotton material - covering lead (Pb), cadmium (Cd), chromium (Cr), mercury (Hg), and hexavalent chromium (Cr⁶⁺), analyzed by ICP-OES and UV-Vis spectrophotometry - confirms compliance with RoHS 2.0 restricted-substance limits (Report No. A2260294452104001E). A separate phthalate report also confirms compliance with REACH Annex XVII limits.

Q: What cleanroom class are these swabs manufactured in, and why does it matter?

A: Production takes place in a Class 1000 (ISO Class 6) cleanroom, which keeps airborne particle counts low during manufacturing. Combined with a particle count / cleanliness report on the finished swabs, this supports use on particle-sensitive surfaces like optics and semiconductor components.

Q: Will these swabs leave ionic residue or non-volatile residue (NVR) on the surface I'm cleaning?

A: An ionic residue / NVR report is on file showing a low-residue result - the relevant data point for applications like optics or electronics cleaning, where any residue left behind can interfere with the surface's performance.

Q: Are these swabs chemically compatible with solvents like IPA or flux remover?

A: A chemical compatibility report has been conducted confirming the cotton head holds up to common cleaning solvents without breaking down or shedding fibers. Ask our team for the specific solvent list if you need compatibility data for a particular chemical.

Q: What is extractables testing, and why was it done on these swabs?

A: Extractables testing measures whether chemical compounds can leach out of the cotton material under test conditions - relevant for applications where the swab contacts sensitive components, lab samples, or surfaces that can't tolerate added contamination. A report is available on request.

Q: What colors are available, and can I get a custom color?

A: White, green, and black are standard head colors, with the stick currently produced in green PP. Custom head or stick colors are available for bulk and OEM orders - contact our team with your color requirement (e.g., a Pantone reference) to confirm feasibility and lead time.

Q: Why Source Pointed Tip Cotton Swabs from Weston

A: Weston manufactures pointed tip cotton swabs in a Class 1000 (ISO Class 6) cleanroom and backs every batch with a documented testing package - RoHS 2.0, phthalate, halogen/antimony, ionic residue (NVR), particle count, chemical compatibility, and extractables reports - so buyers sourcing for electronics, optics, medical, or cleanroom use can verify material safety before placing an order. The lineup now spans 12 standard tip sizes (WN330–WN341), continuously expanded through annual R&D, plus custom colors and OEM/private-label packaging to support both standard wholesale orders and custom-spec projects.
Contact Weston's sales team for samples, full test report PDFs, or a custom quote.

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