Custom Silicone Rubber Keypads for Industrial Control and Electronic Equipment
This elastomeric keypad is built to your 2D/3D drawing or physical sample. We control the compound, the mould, the legend and the final inspection in house, so hardness, key feel and colour stay consistent from the first sample to the tenth repeat order. All key specifications below are reference values; every parameter is confirmed against your drawing before tooling starts.
1. Application Scenarios
- Industrial control panels - sealed keypads for machine tools, inverters, hoists and excavator dashboards, resistant to oil mist and dust.
- POS and payment terminals - wear resistant laser etched legends that survive millions of PIN entries.
- Medical and laboratory devices - smooth, wipe-clean surfaces suitable for alcohol disinfection.
- Automotive and transport - backlit keys for night operation, wide temperature range from -40 C to +200 C.
- Remote controls and home appliances - soft touch 30-50 Shore A keys with clear tactile feedback.
- Security and access control - conductive carbon pill contacts for long life membrane switching.
2. Key Parameter Reference
| Material | 100% silicone rubber, NBR / EPDM / PU optional |
| Hardness | 20-90 Shore A, 50 Shore A typical |
| Key travel | 0.8-3.0 mm |
| Actuation force | 80-350 gf per key |
| Contact resistance | Below 100 ohm with conductive carbon pill |
| Legend process | Laser etching, silk screen, epoxy or PU coating, embossing |
| Sealing | IP65 / IP67 on request |
| Backlight | Transparent silicone with LED light guide |
| Operating temperature | -40 C to +200 C |
| Thickness | 0.8-6.0 mm as per drawing |
| Key position tolerance | Plus or minus 0.05 mm |
| Minimum order quantity | 2,000 pcs per design |
3. Quality Assurance
- Incoming material control - every silicone compound batch is checked for hardness, tensile strength and colour before release to production.
- First article approval - the first moulded piece is measured against your drawing and photographed for your written approval.
- In-process inspection - hourly patrol checks on key height, travel, actuation force, legend alignment and appearance.
- 100% final test - every keypad is functionally pressed and visually inspected; contact resistance is sampled per batch.
- Life cycle test - 1,000,000 press cycles on the tooling sample before mass production starts.
- Compliance - ISO9001 quality system, RoHS and SGS reports, REACH declaration on request.
4. Packaging Specification
| Inner packing | PE bag, 50 pcs per bag, 4 bags per inner box (200 pcs) |
| Outer carton | 5-layer export corrugated carton, 1,000 pcs per carton |
| Carton size | About 45 x 35 x 30 cm, gross weight about 12 kg |
| Protection | Desiccant and moisture barrier bag, keys protected by divider |
| Pallet | 20 cartons per pallet, stretch wrapped, shipping mark as required |
| Customized packing | Retail box, barcode label, Amazon FNSKU and drop test available |
5. After-Sales Service
- 12-month warranty against manufacturing defects on hardness, dimension and legend.
- Fast response - technical reply within 8 working hours, corrective action plan within 48 hours.
- Free replacement for confirmed defective pieces, freight shared according to the agreed terms.
- Tooling care - mould maintenance and storage free of charge; the tooling stays available for your repeat orders.
- Documentation - inspection report, material certificate and packing list issued for every shipment.
6. FAQ
Q: What is your MOQ for a custom keypad?
A: 2,000 pcs per design and per colour. Trial orders below this quantity can be discussed for first cooperation.
Q: What files do you need for a quotation?
A: 2D drawing or 3D file (STEP, IGS, STP), or a physical sample plus target quantity and hardness.
Q: How long does tooling take?
A: Normally 7-10 working days after drawing approval, plus one sample round for your confirmation.
Q: Which hardness should I choose?
A: 20-30 Shore A for very soft touch, 40-60 Shore A for general control panels, 70-90 Shore A for firm keys with strong feedback.
Q: How durable are the printed legends?
A: Laser etched legends are the most durable; silk screen with protective coating passes a 500-cycle abrasion test.
Q: Can you add backlight or conductive carbon pills?
A: Yes. Transparent silicone with light guide for backlight, and conductive carbon pill or carbon printing for switching.
Q: What is the production lead time?
A: 7-15 days after sample approval, depending on quantity and surface process.
Q: Which certificates can you provide?
A: ISO9001, RoHS, SGS test report and REACH declaration.
7. Factory Scale
Our Xiamen based operation is a manufacturer, exporter and trading company founded in 2019, with 100-150 employees and annual sales between USD 2 and 5 million. 80-90% of our output is exported to America, Europe, Southeast Asia and the Middle East, serving brand owners, EMS companies and industrial OEMs.
- In-house tooling and compression moulding workshops, with secondary injection molding for multi colour keys.
- Monthly capacity of 500,000 pcs across keypads, O-rings, gaskets and custom moulded silicone parts.
- Dedicated engineering team for DFM review, 3D modelling and rapid sampling.
- More than 200 active keypad designs produced for global customers, from POS terminals to excavator panels.
Send your 2D/3D drawing or sample photo with target quantity and hardness. You will receive a quotation, DFM feedback and a sample plan within one working day.
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