Quick Answer
3mm sintered stone can be used as the decorative surface panel of a wireless charging pad, with the charging module directly beneath the stone and a base supporting the assembly. For wireless charger manufacturers developing a stone-faced product, the material provides a thin mineral surface that can be cut to the pad shape and finished with smooth edges. Start with the panel size, surface pattern and base design, then request a sample for your charging module.
A stone surface material for wireless charger manufacturers
If your ABS or PC charger works well but looks much like competing models, the top panel is one place to change it. A sintered stone facing leaves the electronics and enclosure underneath, so your OEM or ODM team can develop a stone-faced version around its chosen module and base.
Einova's Classic Stone shows an existing approach: natural marble with a finished base. For a sintered stone design, the 3mm facing is a separate component fitted to the housing.
A pale marble-look panel and a dark mineral pattern can give the same housing quite different appearances. Judge both at charging-pad size. A full slab photograph won't show where the veins fall on a small cut piece.
What a charger manufacturer needs from the stone facing
The purchasing question is whether the new top looks different enough to justify the extra component work. It also has to seat in the base without rework, and you need to be able to order it again. These are the details to resolve with the stone supplier.
| Manufacturer's problem | Stone-facing solution | Define with the supplier |
|---|---|---|
| The plastic model looks too similar to competing chargers. | A stone pattern and finish change the top that customers see and touch. | Finished-size samples showing the face, visible edge and base colour together. |
| A thick decorative top would complicate the compact product. | A 3mm facing keeps the stone component thin, with the charging module directly beneath it. | Stone thickness, coil position and the complete intervening layer stack. |
| A cut panel feels sharp or looks unfinished beside the housing. | Grinding smooths the exposed edge; the drawing sets the corner shape. | Edge treatment and a physical approval sample, separate from the face finish. |
| The panel does not seat consistently in the base. | Fit a panel made to the drawing into the actual base before approving the batch. | Finished dimensions, tolerances, clearance and support areas agreed before the batch. |
| Small pieces from a veined slab look different from the marketing sample. | Approve several finished-size cuts to show how much variation you will accept. | Reference pieces for quieter and more expressive cuts, and any required vein placement. |
| The material price does not reveal the delivered component cost. | Price the stone, processing and packing separately. A slab price alone isn't a panel quotation. | Sample and batch quantities, processing responsibility, packing, minimum order, lead time and repeat-order availability. |
Ask Funtek for 3mm sintered stone and smooth-edge processing to your component drawing. Include the base detail so we can discuss the panel's fit as well as its appearance. The quotation should identify the selected surface, finished dimensions and processing included.
Sintered stone versus plastic: advantages and trade-offs
A stone surface customers can see and touch
For a charger that stays on a desk or bedside table, we would start with appearance and touch. The hard mineral face, veining and finished edge are the reasons to consider stone over a conventional moulded-plastic top. If those differences barely show on the finished pad, the extra processing will be harder to justify.
You can also offer several surfaces on one base design, provided the panels share the same outline and fit.
How heat moves through the facing
Cosentino's Dekton manual lists thermal conductivity of 0.483 W/(m K). Covestro's Makrolon 2458 polycarbonate data lists 0.2 W/(m K) through-plane at 23 C. The higher value in this mineral-surface example is a reason to investigate heat transfer, not a measured value for Funtek's panel. The sources use different standards, and specialised heat-conductive plastics need their own comparison.
Conductivity tells you how heat moves through a material, not how much heat the charging module produces. In the pad, heat also has to cross the adhesive, contact areas or air gaps and reach the base or exposed surface.
The useful comparison is two assembled pads: your existing plastic version and the stone-faced prototype. Use the same module, power setting, phone, case and ambient conditions. During sustained charging, record surface and module temperatures and check whether the output stays stable.
Where plastic remains easier
Stone is a flat facing component, not a substitute for every function of an injection-moulded housing. Keep snap clips, screw bosses, cable routing and other three-dimensional features in the base. The stone panel needs a defined seat and support; do not force it into a tight rim or ask an unsupported edge to act as a flexible clip.
Inspect cut and ground edges for chips before assembly. Packing needs to separate the faces and protect the corners, so include it in the quotation and receiving checks.
Weigh the assembled sample and review its drop behaviour, especially for a travel charger. Our recommendation is to choose stone when its appearance and feel justify the cutting, edge inspection and pattern control. Plastic remains the simpler choice when low weight, moulded features or a uniform repeated appearance comes first. Check processing cost and 3mm surface availability before committing to either design.
How the 3mm panel, charging module and base fit together
The basic assembly has three parts: a 3mm sintered stone facing, a wireless charging module beneath it, and a base with a seat for the panel and space for the electronics. The charging coil belongs under the intended phone position. The base locates the module and supports the stone around the agreed contact areas.
3mm describes the stone facing, not the total height of the charging pad. The housing depth also accommodates the module, its mounting and the power connection. Put the panel thickness and the coil position on the assembly drawing so the electronics team and stone supplier work from the same detail.
The module's allowed distance to the phone includes any gap or extra layer between the coil and the stone. Keep adhesive, backing and supports in the positions specified by the module designer, and avoid adding an unreviewed metal plate in the charging path. Corning's explanation of wireless charging describes how intervening metal can generate eddy currents and heat.
Use the selected module's output and operating requirements to approve the finished product. Test the stone-faced sample with the phones and cases you intend to support, including repeated placement and sustained charging. Record charging interruptions, temperature behaviour and the accepted positioning area before releasing the housing design.
Choose the pattern at charging-pad size
A broad vein may cross one panel and miss the next. A finer texture may appear across more cut pieces. Decide whether the range can include that variation or whether each pad needs a specific vein position.
Browse the sintered stone pattern collection, then request the available 3mm options. A thicker slab listing doesn't confirm 3mm availability. Ask for a sample cut to the pad outline, with the intended face finish and exposed edge.
A charging pad can also expose part of its base around the stone. Check the panel and base together: their colours, the width of the visible rim, the corner shape and whether the stone sits flush or slightly proud of the housing. These details determine how the assembled product looks on a desk or bedside table.
Smooth edges and a defined fit with the base
The stone panel can be cut to the required outline and its edges ground smooth. A rectangular pad, rounded rectangle or circular face needs a drawing that identifies the finished shape and how it meets the housing. Smooth edge processing should be specified separately from the face finish, so a request for a comfortable edge does not unintentionally change the surface appearance.
If the base surrounds the stone, approve the clearance between the panel and rim on an assembled sample. If the edge stays exposed, review the edge colour, smoothness and corner feel as visible parts of the product. Inspect for chips before bonding; fitting the panel into a housing can make a damaged corner harder to replace.
Put the length and width or diameter, corner radii, thickness and edge treatment on the drawing. Agree tolerances with the stone processor and housing supplier together: too large and the panel may not seat; too small and it leaves a visible gap. Use the actual base to approve the fit.
Approve one complete sample before the production order
Begin with a stone sample to compare appearance and the selected charging module. Next, assemble a finished-size panel with the production base, mounting method and power supply. This is the sample the factory should retain for repeat orders: it captures the surface, edge, fit and charging behaviour in one object.
Keep the approved drawing revision, material reference and photographs of the assembled sample together. The stone sample approval process is useful for recording surface appearance. For the charging product, add the selected module model and the manufacturer's acceptance record for device compatibility, charging operation and enclosure temperature.
For the first batch, agree the receiving checks before production: panel dimensions and thickness against the drawing, visible edge and corner condition, face finish, accepted pattern range and seating in the base. Retain representative accepted panels, not just the most attractive piece. For repeat orders, use the same drawing revision and material reference, and confirm availability before scheduling the assembly line.
The quotation should name who cuts and grinds the panel, who bonds it to the base, and who checks the assembled charger. Tell Funtek whether you need 3mm material for your own processor or finished panels made to a drawing. Ask for the minimum order, sample timing, batch lead time and packing for that order.
| Send with the enquiry | What it defines |
|---|---|
| Panel drawing and nominal 3mm thickness | Finished outline, corner shape, edge treatment and required dimensions. |
| Base drawing or a physical base | Panel seat, visible rim, support and assembled fit. |
| Preferred surface and finish | Available material options and the acceptable pattern range. |
| Module layout and mounting detail | Coil position, intervening layers and processing around the charging area. |
| Sample quantity and planned production quantity | Separate sample and batch quotations with the agreed packing scope. |
Funtek's quotation covers the stone material and agreed processing. Your charger team supplies or specifies the electronics and approves the complete product.
Discuss a 3mm Stone Facing for Your Wireless Charger
Send Funtek your panel drawing, preferred surface and base detail. Request available 3mm material options, a sample plan and a quotation for the stone and agreed processing.