Giving Robots the Warmth and Sensitivity of Life
Presented by Beijing Richsifang Automotive Technology Co., Ltd.
Automotive‑Grade Precision × Next‑Generation Biomimetic Interfaces
From “Lifelike” to “Alive”
Bionic Skin Is More Than a Shell
For service robots, humanoid robots, and high‑end animatronics, realism is no longer just about appearance. True human‑like interaction requires skin that delivers warmth, tactile sensitivity, and dynamic response.
rafavi Bionic Skin combines automotive‑grade precision manufacturing with advanced biomimetic materials to achieve a world‑first integration of:
- TPU nanofiber matrix — breathable, highly elastic, “breathes” like real skin
- Graphene active heating layer — precisely simulates human body temperature (36–37 °C)
- MXene/graphene hybrid sensing network — detects touches as light as a feather and recognizes gestures
- Self‑powered tactile feedback — instant response with zero external power consumption
Core Technology: Not Just Imitation, but Re‑engineering
01 Three‑Layer Biomimetic Structure
Dermis · Actuation · Epidermis
- Dermis base: Electrospun TPU nanofiber membrane, water‑vapor transmission rate ≥57.6%/2h – no stuffiness even with long‑term contact
- Smart actuation layer: Graphene/TPU composite film, electrothermal conversion efficiency >95%, capable of micro‑motions (breathing‑like undulations, touch‑induced retraction) under infrared or humidity stimulation
- Biomimetic epidermis: High‑grade TPE/silicone material with customizable pore, fingerprint, and vascular textures for unmatched visual and tactile realism
02 Ultra‑Sensitive Tactile Sensing
Surpassing Human Fingertip Sensitivity
Inspired by mussel‑adhesion structures and micro‑crack networks, the sensor achieves a gauge factor >80,000 and can detect strain as low as 0.05%. It not only senses pressure but also distinguishes stroking, pressing, and sliding gestures with high precision.
03 Graphene Active Warming
Say Goodbye to the “Cold” Robot
- Uniform far‑infrared radiation with no hot spots
- Programmable temperature curves: maintain natural human skin temperature in normal conditions, automatically compensate in cold environments
- Up to 70% improvement in thermal realism compared to conventional silicone skins
BOM List + Process Drawing Specification
1. BOM List (Directly Issuable to Factory)
1.1 Core Materials
表格
| Item No. | Material Name | Specification | Unit | Qty/Set | Purpose | Recommended Supplier |
| 1 | High-Elastic TPU Bionic Film | 0.1mm (face) / 0.2mm (body); elongation ≥400%; biocompatible | ㎡ | 0.05 | Bionic skin surface | Yuequan Bionic, Shanghai Xingen Tech |
| 2 | Flexible Graphene Heating Film | ≤0.1mm; DC12V; 10–30W; uniform surface heating; IPX4; bending resistance >100,000 cycles | pcs | 1 | Constant temperature heating layer | Beijing Richi Sifang, Elephant Antai |
| 3 | Ultra-Thin FPC Temperature Control Board | NTC + PTCR dual control; over-temperature protection at 42°C; flexible circuit | set | 1 | Temperature control & drive | Xiaoquan Tech (Facey Bot) |
| 4 | Medical-Grade Flexible Hot-Melt Adhesive Film | 0.03mm; low-temp lamination at 60°C; high thermal conductivity | ㎡ | 0.05 | Layer lamination | 3M, Henkel |
| 5 | Ultra-Thin PU Insulation Film | 0.02mm; temperature range: -40~85°C | ㎡ | 0.05 | Circuit insulation | Electronic material suppliers |
| 6 | Flexible Bend-Resistant Lead Wire | 28AWG; enameled wire; gold-plated terminal | set | 1 | Power connection | Automotive-grade wiring harness |
1.2 Structural Auxiliary Materials
表格
| Item No. | Material Name | Specification | Unit | Qty/Set |
| 7 | Silicone Buffer Foam | 0.3–0.5mm; ultra-soft | pcs | 1 |
| 8 | Medical-Grade Skin-Tone Ink | Realistic skin color; stretch-resistant | g | 2 |
| 9 | PET Release Film | 0.05mm | ㎡ | 0.06 |
| 10 | Flexible Waterproof Sealant | Room-temperature curing; transparent | tube | 0.1 |
1.3 Electrical Components
表格
| Item No. | Component Name | Specification | Unit | Qty/Set |
| 11 | Power Driver Module | DC12V/2A; over-current / over-voltage / over-temperature protection | set | 1 |
| 12 | NTC Temperature Sensor | 10kΩ 3950; ultra-thin SMD | pcs | 1 |
2. Process Drawing & Structure Specification
2.1 Layer Structure (Top to Bottom)
- Surface Layer: TPU Bionic FilmThickness: 0.1mm (face) / 0.2mm (body); surface with pore texture; edge fillet R2mm
- Heating Layer: Graphene Heating FilmThickness ≤0.1mm; heating area indented 5mm from edge
- Insulation Layer: PU Insulation FilmThickness 0.02mm
- Bottom Layer: Silicone Buffer FoamThickness 0.3–0.5mm
Total Thickness
- Face: ≤0.5mm
- Body: ≤0.8mmTolerance: ±0.05mm
2.2 Standard Dimensions
- Face bionic skin: 220mm × 180mm
- Body bionic skin: 300mm × 200mm
- Cable outlet: 8mm × 30mm; centered on one side
- All edges: fillet R2mm
2.3 Electrical Interface Definition
- VCC: DC 12V
- GND: Ground
- NT: NTC temperature signal
- Protection: Auto power-off at 42°C
3. Production Process Flow (SOP)
- TPU Film PrepCleaning → Plasma surface treatment → Skin-tone printing → Pore texture embossing
- Graphene Heating Film PrepLaser cutting → Continuity test → Insulation encapsulation
- LaminationHot-melt adhesive alignment → Hot pressing (60°C / 0.2MPa / 10s) → Holding & cooling
- Circuit IntegrationFPC soldering → Lead fixing → Waterproof sealing
- Function TestHeating test → Constant temperature stability → Insulation test → Bending test → Waterproof test
- Final Inspection & PackagingAppearance / dimension / function inspection → ESD packaging
4. QC Acceptance Standard
- Heating performance: ≥0°C in 0.5min at -20°C; ≥30°C in 2min at -20°C
- Constant temperature: 36±1°C; fluctuation ≤±0.5°C
- Waterproof: IPX4; normal operation after 24h water immersion
- Durability: No failure after 100,000 bending cycles
- Safety: Low-voltage supply; over-temperature protection; qualified insulation
5. Product Example Diagram (For Reference)
Attached: TPU Bionic Film + Graphene Heating Robotic Bionic Skin Rendering
- Structure: TPU skin surface + graphene uniform heating + flexible temperature control
- Features: Realistic texture, 36°C constant temperature, high elasticity, long durability
Contact: