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SF Low Noise Axial Fan
SF Low Noise Axial Fan gallery 1
SF Low Noise Axial Fan gallery 2
SF Low Noise Axial Fan gallery 3
  1. SF Low Noise Axial Fan
  2. SF Low Noise Axial Fan gallery 1
  3. SF Low Noise Axial Fan gallery 2
  4. SF Low Noise Axial Fan gallery 3

SF Low Noise Axial Fan

SF Low Noise Axial Fan is a large axial ventilation fan for spaces that need steady airflow without turning the work area into a noisy, uncomfortable place.

  • Efficient Axial Airflow: Designed for large-scale ventilation with practical air movement and energy-conscious operation.
  • Low-Noise Design: Quiet operation helps reduce noise pollution in workshops, warehouses and daily work areas.
  • Industrial Construction: Robust structure supports long-term use in demanding ventilation environments.
  • Easy Installation: Simple axial fan configuration makes mounting and maintenance more straightforward.
  • Multiple Model Options: Published dimensional and performance tables support model selection for different airflow requirements.
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System Overview

SF Low Noise Axial Fan is made for large spaces that need air to move steadily without adding harsh background noise. It brings practical ventilation to industrial and commercial environments where comfort and airflow both matter.

With efficient axial airflow, durable construction and clear model data, the series supports workshops, warehouses and equipment rooms that need reliable fresh-air movement or exhaust ventilation.

Core Engineering Features

Built for large-area ventilation, the SF series combines efficient airflow, low-noise operation and straightforward installation.

AXIAL FLOW

Efficient large-area ventilation

The axial design supports practical air exchange across workshops, warehouses and similar open spaces.

LOW NOISE

Quieter daily operation

Noise-conscious design helps keep occupied work areas more comfortable.

DURABLE BODY

Industrial construction

Robust materials support long-hour operation and repeated project use.

EASY MOUNT

Simple installation and maintenance

The fan is easier to install and service than complex fixed ventilation assemblies.

MODEL DATA

Size and performance tables included

Clear parameters help buyers compare dimensions, airflow and motor data before ordering.

ENERGY USE

Efficient air movement

Practical airflow delivery helps reduce wasted power in everyday ventilation tasks.

Technical Specifications

Dimensional Parameters

Model D D1 D2 D3 L1 L2 L3 H1 H2 n-d1 A B d2
2 210 230 255 / 235 / / 1350 / 6-7 140 256 9
2.5 260 290 310 345 260 270 280 183 470 6-9 200 282 9
3 310 340 360 395 260 280 300 197 470 6-9 250 282 9
3.5 362 392 420 440 325 350 390 238 460 6-9 290 352 9
4 412 440 472 500 340 370 420 273 525 6-9 340 365 9
4.5 462 490 522 560 340 370 400 298 525 6-9 340 365 9
5 512 542 572 600 350 380 450 317 630 6-9 430 378 9
5.5 562 592 625 670 450 480 520 345 630 6-9 434 478 10
6 612 646 690 690 500 530 580 400 685 8-10 500 528 12
7 720 750 790 810 535 570 620 460 770 8-12 540 593 14
8 825 865 905 920 600 640 690 551 870 8-12 630 658 14
10 1030 1075 1110 / 805 / / 682 / 8-13 800 860 14

Performance Parameters

Model Power (kW) Voltage (V) Speed (r/min) Airflow (m³/h) Pressure (Pa) Noise (dB/A)
SF2-2 0.12 38 2800 1300 140 62
SF2-2R 0.12 220 2800 1300 140 62
SF2-4 0.06 380 1450 600 20 57
SF2-4R 0.06 220 1450 600 20 57
SF2.5-2 0.25 380 2800 2100 215 65
SF2.5-2R 0.25 220 2800 2100 215 65
SF2.5-4 0.09 380 1450 1000 35 59
SF2.5-4R 0.09 220 1450 1000 35 59
SF3-2 0.37 380 2800 3000 230 68
SF3-2R 0.37 220 2800 3000 230 68
SF3-4 0.12 380 4150 2000 59 61
SF3-4R 0.12 220 4150 2000 59 61
SF3.5-2 0.75 380 2800 6000 260 70
SF3.5-2R 0.75 220 2800 6000 260 70
SF3.5-4 0.25 380 1450 4000 100 63
SF3.5-4R 0.25 220 1450 4000 100 63
SF4-4 0.55 380 1450 5870 149 72
SF4-4R 0.55 220 1450 5870 149 72
SF4-2 1.5 380 2880 10000 170 80
SF4-2R 1.5 220 2800 10000 170 80
SF5-4 0.57 380 1450 10000 200 74
SF5-4R 0.73 220 1450 10000 170 74
SF5-6 2.2 380 960 7700 120 66
SF6-4 1.1 380 1450 18700 300 80
SF6-6 3.0 380 960 14500 180 75
SF7-4 2.2 380 1450 24500 350 85
SF7-6 3 380 960 21500 210 80
SF8-4 2.2 380 1450 37200 235 88
SF8-6 3 380 960 28000 196 82
SF10-6 4 380 960 50000 260 88

Target Applications

Low-noise axial ventilation for large spaces that need steady air exchange and easy installation.

Workshops

General ventilation support for production and repair areas.

Warehouses

Air movement for storage spaces where stagnant air affects comfort and goods.

Commercial Facilities

Ventilation support for shared service areas and equipment zones.

Equipment Rooms

Helps move warm or stale air away from machinery and utility spaces.

Quality Assurance & Warranty

We eliminate procurement and installation risks through rigorous factory verification and straightforward B2B warranty support.

100% Pre-Shipment Inspection

Every batch undergoes strict functional and dimensional routing tests, including blade assembly inspection, motor running test, noise review, airflow confirmation, mounting size check and model-to-table matching. We ensure that every single unit arrives at your project site fully functional and ready for flawless installation.

Reliable Hardware Warranty

We stand firmly behind our manufacturing craftsmanship. In the rare event of any material defect or mechanical failure under standard project operations, KCVENTS provides a straightforward, hassle-free hardware replacement service to secure your timeline.

OEM/ODM & Warranty Support

As a global manufacturer of HVAC and ventilation equipment, KCVENTS is dedicated to providing flexible customization services and robust long-term supply chain warranty terms for contractors, brands, and wholesalers.

Flexible OEM/ODM Solutions

We support full private labeling (OEM) and custom housing finishes. Our ODM engineering covers custom chassis modifications, specialized airflow curves, and regional electrical standards (e.g., 110V/60Hz, 24V variable frequency).

Project-Based Supply Agreements

For large-scale HVAC and green building deployments, we offer structured MOQ tiers, staged shipping contracts, and agile multi-batch delivery aligned with your construction timeline. Technical submittals and parameter validation are included.

Extended Warranty & Technical Claims

Motors enjoy an extended warranty of up to 3 to 5 years, backed by a comprehensive 1-year full system warranty. Bulk orders are eligible for a dedicated percentage of maintenance spares along with 1-on-1 remote engineering support.

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Supply Options

OEM/ODM Services

Custom branding, control integration, packaging, colors, and specification adjustments are available for qualified project and distributor orders.

Voltage & Plug Options

EU, UK, US, AU, and project-specific voltage or plug configurations can be reviewed during quotation.

Documentation Support

Catalogs, technical sheets, manuals, available certificates, and project documentation can be provided for engineering review.

Bulk Supply

Volume pricing, distributor programs, sample orders, and long-term supply planning are available for B2B customers.

Project & Engineering Support

Our team can support product selection, airflow checks, project quotations, and documentation for commercial, industrial, and residential ventilation projects.

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