| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Keystone Electronics Corp. |
GUARD FINGER FOR 3 1/8" FAN MET |
498177 |
|
 |
Keystone Electronics Corp. |
FILTER 120MM |
142 |
|
 |
Keystone Electronics Corp. |
GUARD ASSY 3.80"SQ FOR 3 5/8"FAN |
263282 |
|
 |
Keystone Electronics Corp. |
FILTER 92MM |
3276 |
|
 |
Keystone Electronics Corp. |
GUARD FAN FOR 3 1/8" FAN PLASTIC |
97 |
|
 |
Keystone Electronics Corp. |
GUARD ASSY 1.57"SQ FOR 1 1/2"FAN |
91 |
|
 |
Keystone Electronics Corp. |
GUARD FAN FOR 4 1/2" FAN PLASTIC |
142 |
|
 |
Keystone Electronics Corp. |
FAN FILTER ASSEMBLY 120MM |
0 |
|
 |
Keystone Electronics Corp. |
FILTER 40MM |
0 |
|
 |
Keystone Electronics Corp. |
GUARD ASSY 4.87"SQ FOR 4 1/2"FAN |
556467 |
|
 |
Keystone Electronics Corp. |
GUARD ASSY 3.29"SQ FOR 3 1/8"FAN |
1030198 |
|
 |
Keystone Electronics Corp. |
GUARD FINGER FOR 10" FAN METAL |
24 |
|
 |
Keystone Electronics Corp. |
GUARD FINGER FOR 6" FAN METAL |
174285 |
|
Fan accessories including finger guards, filters, and sleeves are critical components in thermal management systems. Finger guards prevent physical contact with rotating blades, filters ensure airflow purity, and sleeves optimize aerodynamic performance. These components are essential for maintaining equipment reliability, safety compliance, and energy efficiency in modern electronics, industrial machinery, and HVAC systems.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| Perforated Metal Guards | Mechanical protection with 95% airflow retention | Industrial motors, power tools |
| Polymer Mesh Filters | Particulate filtration (5-50 m efficiency) | Server racks, medical devices |
| Aerofoil Sleeves | Flow guidance with 15-20% static pressure increase | Aerospace cooling systems |
| EMI Shielding Guards | Radiation suppression (30-100MHz range) | Telecom equipment |
Finger guards typically use stamped aluminum alloys (6061-T6) or glass-reinforced nylon. Filters employ multi-layer media: pre-filters (PET non-woven), HEPA layers (borosilicate microfibers), and activated carbon. Sleeves are constructed from anodized aluminum or fiber-reinforced polymers with aerodynamic profiles optimized via CFD analysis. All components incorporate anti-vibration mounts and corrosion-resistant coatings.
| Parameter | Value Range | Importance |
|---|---|---|
| Material Temp Range | -40 C to +150 C | Operational stability |
| Filter Efficiency | 80-99.97% @ 0.3 m | Contamination control |
| Pressure Drop | 5-50 Pa | Energy consumption |
| Noise Level | 20-45 dB(A) | Environmental comfort |
| Manufacturer | Product Series | Key Features |
|---|---|---|
| NMB Technologies | AeroGuard Pro | Integrated EMI shielding & variable pitch design |
| Sunonwealth | MagLev Filter Sleeve | Magnetic levitation bearing & 50,000h L10 life |
| Delta Electronics | SmartAir Guard | Piezoelectric vibration sensing & IoT integration |
Consider environmental factors (temperature/humidity), system airflow requirements (CFM vs static pressure), maintenance accessibility, and regulatory standards (UL/CSA/CE). For high-contamination environments, select filters with differential pressure indicators. In vibration-prone applications, specify anti-resonance sleeve designs.
Market evolution focuses on smart integration (IoT-enabled condition monitoring), nanocoating technologies for self-cleaning filters, and additive manufacturing for complex aerodynamic geometries. Regulatory pressures drive demand for UL94 V-0 flame-rated materials and RoHS-compliant production processes. Forecasted CAGR of 6.2% (2023-2030) driven by edge computing infrastructure growth.