Custom Cleaning Brush
PVA Sponge Wafer
PVA Sponge Wafer provides controlled brush contact for precision electronics and static-control cleaning across contacts, slots, and boards. Working width, brush geometry, mounting, and fill are set around the machine path and the way lint, oxide, and flux residue must be released or carried away.
Product Features
Soft PVA sponge contacts polished wafer surfaces — The compliant working face removes particles without hard bristle or wire contact.
Porous structure carries and releases rinse liquid — The sponge maintains a wet interface and helps transport loosened contamination away.
Roller compression creates even cleaning pressure — The cylindrical head conforms to the wafer while limiting isolated high-load points.
Controlled pore and hardness options tune cleaning behavior — Sponge structure can be selected for liquid retention, conformity, and particle removal.
Low-particle processing can be specified — Material preparation, core bonding, cleaning, and packaging can be controlled for semiconductor use.
Built to the wafer-cleaning tool — Outside diameter, working width, PVA grade, pore structure, hardness, core, and mounting can be customized.
Product Overview
PVA Sponge Wafer is used where repeatable contact is needed across contacts, slots, and boards rather than isolated hand cleaning. The active brush face clears lint, oxide, and flux residue while the holder, shaft, plate, or hub stays outside the interference path and supports the required working width. The brush must control contact load, particle shedding, conductivity, and access to fine features.
Key dimensions start with Brush head diameter 80–250 mm and Brush head length 100–500 mm. The structure uses a roller or conveyor arrangement so the brush can follow a moving surface or machine path. The specified interface is shaft-mounted / flange. PVA Sponge and PU Sponge are the principal material directions in the current specification. Please send the equipment interface and operating conditions, including speed, so the brush can be matched to the machine.
Technical Specifications
| Working width | 100–500 mm |
|---|---|
| Brush diameter | 80–250 mm |
| Core or shaft | 20–100 mm |
| Pore or abrasive grade | PVA pore grade or 36–400 abrasive grade |
| Runout | ≤0.2 mm for precision roller assemblies |
| Contact setting | Use 0.5–3 mm engagement or a surface load below 2 N/cm² on fragile substrates. |
| ESD resistance | 10³–10⁹ ohms where required |
| Surface load | 0.5–3 N/cm² for controlled low-pressure contact |
| Fill materials | PVA Sponge and PU Sponge |
| Cleaning zone | precision electronics and static-control cleaning |
| Contact surface | contacts, slots, boards, terminals, optical end faces, films, carriers, and precision housings |
| Residue class | lint, oxide, flux residue, polishing particles |
| Access and motion | the brush must control contact load, particle shedding, conductivity, and access to fine features |
| Cleaning duty | precision electronics, static-control cleaning on contacts, slots, boards, terminals |
| Variant configuration | PVA Sponge Wafer: wafer, sponge roller construction with PVA Sponge, PU Sponge fill for precision electronics and static-control cleaning on contacts, slots, boards, terminals. |
Application Areas
PVA Sponge Wafer is primarily mapped to Semiconductor Wafer & Chip Cleaning. For a new use case, check the surface material, debris flow, and finish requirement before fixing the brush design.
- PVA Sponge Wafer is best suited to wafer, semiconductor, CMP pad, silicon, and precision-substrate cleaning or polishing.
- The antistatic, conductive, PVA, abrasive, plate, disc, or precision roller brush follows wafer face, CMP pad, carrier, precision surface, chamber component, and process roller while the fill displaces slurry, particles, polishing residue, oxide, film, and clean-process contamination.
- Use this configuration when the available access supports low-load contact on electronics, connectors, PCB, battery, ceramic, or semiconductor surfaces.
Selection Guidance
Structure fit
Match the roller and conveyor brush geometry to contacts, slots, and boards, the available access, and powered operation. Confirm Brush head diameter 80–250 mm and Brush head length 100–500 mm against the complete working envelope before finalizing the brush.
Contact material
Choose from PVA Sponge and PU Sponge according to the behavior of lint, oxide, and flux residue, the surface sensitivity, and any wet, chemical, temperature, or hygiene requirements. The same material can feel very different depending on filament diameter, free trim, and fill density.
When to use another solution
For PVA Sponge Wafer, use another cleaning method when lint, oxide, and flux residue cannot be released by controlled filament contact, when contacts, slots, and boards cannot tolerate the selected contact material, or when the access path prevents safe engagement and residue removal.
Customization Options
| Brush Head Diameter (mm) | 80–250 |
|---|---|
| Brush Head Length (mm) | 100–500 |
| Handle Length (mm) | Not Applicable (No separate handle in this product configuration) |
| Handle Grip Diameter (mm) | Not Applicable (No explicit grip or handle-diameter dimension in the product specification) |
| Bristle Material | PVA Sponge, PU Sponge |
| Handle Material | 304 Stainless Steel |
| Mounting / Interface | Shaft-Mounted / Flange |
| Grip Style | Not Applicable (Machine-Mounted Brush) |
| Color | Custom PANTONE Color ([Industry Reference Range]) |
| Logo Process | Laser Engraving / Screen Printing / Pad Printing ([Industry Reference Range]) |
| Surface Treatment | Smooth / Textured / Overmolded / Coated (Depending on Substrate; [Industry Reference Range]) |
Frequently Asked Questions
How should PVA Sponge Wafer be selected?
Start with wafer, semiconductor, CMP pad, silicon, and precision-substrate cleaning or polishing, wafer face, CMP pad, carrier, precision surface, chamber component, and process roller, and slurry, particles, polishing residue, oxide, film, and clean-process contamination. Then set Working width, Brush diameter, and Core or shaft, choose the fill from the material and residue table, and match the mounting interface and operating condition.
Which dimensions define PVA Sponge Wafer?
The primary dimensions are Working width (100–500 mm), Brush diameter (80–250 mm), and Core or shaft (20–100 mm). Also provide the minimum clearance, working envelope, trim or engagement, and the existing holder, shaft, stem, thread, or handle.
Which filament or contact material is used for PVA Sponge Wafer?
The primary options are PVA Sponge and PU Sponge. The final choice follows surface sensitivity, residue adhesion, wet or dry use, temperature, chemicals, conductivity, and required cutting action.
When is PVA Sponge Wafer not the best cleaning method?
PVA Sponge Wafer is not the first choice for ionized air, vacuum, PVA sponge, megasonic, wipe, or solvent cleaning where bristle contact is unsuitable.
What information is required to quote PVA Sponge Wafer?
Send the part or machine drawing, photos of wafer face, CMP pad, carrier, precision surface, chamber component, and process roller, Working width, Brush diameter, Core or shaft, and Pore or abrasive grade, the residue description, wet or dry conditions, motion or use method, temperature, preferred PVA Sponge and PU Sponge, quantity, and the existing interface or sample.
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Read related guideCustom Manufacturing RFQ
Upload the Brush Drawing, Product Photo or Sample Details
To prepare the correct quotation, provide the dimensions, cleaning task, residue, material, mounting details, quantity, and a drawing or photo.
Custom Brush RFQ
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Upload a drawing, product photo, or sample photo and provide the core dimensions and cleaning conditions.