Fans - Finger Guards, Filters & Sleeves

Image Part Number Description / PDF Quantity Rfq
50968-2-4039

50968-2-4039

ebm-papst Inc.

GRILL GUARD 172MM FOR M4Q SERIES

0

08195

08195

Qualtek Electronics Corp.

WIRE FORM FAN GUARD 120MM

0

07F.45

07F.45

Finder Relays, Inc.

FILTER MAT - SIZE 4

0

MG-25X

MG-25X

Mechatronics

GUARD FOR 10" FAN, PLATED ON THE

0

LZ40/60

LZ40/60

ebm-papst Inc.

KIT SCREEN FOR 4000, 9000 SER

0

109-139H

109-139H

Sanyo Denki

FINGER GUARD 60MM

0

FG-17A

FG-17A

Sunon

METAL FAN GUARD 172MM

0

109-1000G

109-1000G

Sanyo Denki

FINGER GUARD 120MM

436

109-319H

109-319H

Sanyo Denki

FINGER GUARD 172MM

180

QSG-60-01

QSG-60-01

Qualtek Electronics Corp.

FINGER GUARD 60MM BLACK

0

07F.25

07F.25

Finder Relays, Inc.

FILTER MAT - SIZE 2

0

08124

08124

Qualtek Electronics Corp.

WIRE FORM FAN GUARD 120MM

0

20281-2-2957

20281-2-2957

ebm-papst Inc.

FLOWGRID GUARD 220/225/250/280MM

0

00191-2-2957

00191-2-2957

ebm-papst Inc.

FLOWGRID GUARD 175/190MM

0

08151-01

08151-01

Qualtek Electronics Corp.

FINGER GUARD 150MM METAL

0

476136

476136

Comair Rotron

FINGER GUARD TARZAN

0

25311-2-2957

25311-2-2957

ebm-papst Inc.

FLOWGRID OPEN STYLE 310MM

0

LZ63

LZ63

ebm-papst Inc.

GUARD STD 6300 & 6400N SR

0

35139-2-4039

35139-2-4039

ebm-papst Inc.

GUARD 208 INLET SIDE

0

LZ48

LZ48

ebm-papst Inc.

FINGER GUARD 9920048000

0

Fans - Finger Guards, Filters & Sleeves

1. Overview

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.

2. Main Types & Functional Classification

TypeFunctional CharacteristicsApplication Examples
Perforated Metal GuardsMechanical protection with 95% airflow retentionIndustrial motors, power tools
Polymer Mesh FiltersParticulate filtration (5-50 m efficiency)Server racks, medical devices
Aerofoil SleevesFlow guidance with 15-20% static pressure increaseAerospace cooling systems
EMI Shielding GuardsRadiation suppression (30-100MHz range)Telecom equipment

3. Structure & Composition

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.

4. Key Technical Specifications

ParameterValue RangeImportance
Material Temp Range-40 C to +150 COperational stability
Filter Efficiency80-99.97% @ 0.3 mContamination control
Pressure Drop5-50 PaEnergy consumption
Noise Level20-45 dB(A)Environmental comfort

5. Application Fields

  • IT Infrastructure: Data center cooling systems
  • Industrial Automation: CNC machine tool cooling
  • Consumer Electronics: Gaming PC thermal management
  • Medical Equipment: MRI scanner thermal control

6. Leading Manufacturers & Products

ManufacturerProduct SeriesKey Features
NMB TechnologiesAeroGuard ProIntegrated EMI shielding & variable pitch design
SunonwealthMagLev Filter SleeveMagnetic levitation bearing & 50,000h L10 life
Delta ElectronicsSmartAir GuardPiezoelectric vibration sensing & IoT integration

7. Selection Guidelines

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.

Industry Trends

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.

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