LSR Diaphragm for Automotive Sensors
Precision LSR diaphragm for automotive sensors, chemical resistant, high elasticity
Description
This LSR diaphragm is precision-molded for automotive sensor applications, offering high elasticity and excellent chemical resistance. Manufactured with our advanced LSR injection molding process, it ensures consistent thickness and dimensional accuracy. The diaphragm operates reliably in harsh environments including exposure to oils, fuels, and extreme temperatures. Suitable for pressure sensors, flow sensors, and valve control systems.
Specifications
| Material | LSR (Liquid Silicone Rubber) |
| Hardness | 40±5 |
| Operating Temperature | -40°C to 200°C |
| Color | Black / Blue / Custom |
| Certifications | IATF 16949 |
| MOQ | 5000 |
| Lead Time | 20 days (after approval) |
| Customization | Drawing or sample based, full dimensional report provided |
Engineering & Quality Documentation
📋 Technical Standards
- IATF 16949-aligned manufacturing; PPAP Level 3 documentation on request
- Media compatibility validated: brake fluid, diesel, glycol coolant
- Operating envelope -40 °C to +200 °C
- MSA / SPC data packages for OEM APQP processes
🏭 Manufacturing Process
LSR injection molded in zero-flash tools; the sensing membrane and rigid flange are co-molded in one shot to eliminate assembly drift.
- Membrane thickness held to ±0.01 mm by precision inserts
- Post-cure cycle locks in modulus for consistent stiffness
- Lot-controlled pigment batches for full traceability
🔍 Quality Inspection
- ▸ 100% visual inspection before packing (flash, short-shot, contamination)
- ▸ Dimensional verification against approved drawing; FAI report on first shipment
- ▸ Hardness per ASTM D2240 (Shore A) on every batch
- ▸ Lot traceability: material batch and cure records logged per carton
- ▸ Membrane thickness verification on FAI and tool-change lots
- ▸ Deflection / stiffness sampling test per lot
- ▸ Compression set per ASTM D395 for flange sealing
🛡️ After-sales & Warranty
12-month warranty. PPAP Level 3, CoC and FAI documentation available; 8D report within 48 hours for confirmed quality issues, with free replacement of non-conforming batches.
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