Korfmann Lufttechnik
Index
Korfmann Lufttechnik is a specialized manufacturer of industrial ventilation systems based in Germany. Their heavy-duty industrial fans are engineered to operate reliably in severe conditions, particularly for underground mining and tunneling applications.
Offering a diverse lineup that includes explosion-proof models and contra-rotating fans, they meet unique site requirements and contribute to improving ventilation and air quality in subterranean spaces.
Source: Korfmann Lufttechnik
https://korfmann.com/
https://korfmann.com/
Product Examples of Industrial Fans
Offered by Korfmann Lufttechnik
Product Line AL / dAL (AL7-30 to AL10-300)
Situations Where
Product Line AL / dAL (AL7-30 to AL10-300) Works Best
This series serves well as main ventilation fans for mines and tunnels. Equipped with guide vanes and a robust steel housing, these fans are built for continuous operation in severe industrial environments. With an extensive airflow capacity, they satisfy a wide range of heavy-duty ventilation requirements.
Source: Korfmann Lufttechnik
https://korfmann.com/en/products/productlinie-al-dal/al7-30-to-al10-300/
https://korfmann.com/en/products/productlinie-al-dal/al7-30-to-al10-300/
Product Specifications
| Diameter | 27.6 to 39.4 in. (700 to 1000 mm) |
|---|---|
| Airflow Capacity | Approx. 55,100 CFM (26 m³/s) |
| Total Pressure Capacity | 5.2 in. wg. (1300 Pa) |
| Motor Shaft Power | 4.0 to 40 HP (3.0 to 30.0 kW) |
| Voltage Range | 230 to 1000 V |
| Protection Class | IP55 or higher |
Source: Korfmann Lufttechnik
https://korfmann.com/en/products/productlinie-al-dal/al7-30-to-al10-300/
https://korfmann.com/en/products/productlinie-al-dal/al7-30-to-al10-300/
Product Line GAL / dGAL (GAL3-15/15 to GAL14-1100/1100)
Source: Korfmann Lufttechnik
https://korfmann.com/en/products/product-line-gal-dgal/gal3-15-15-to-gal14-1100-1100/
https://korfmann.com/en/products/product-line-gal-dgal/gal3-15-15-to-gal14-1100-1100/
Situations Where
Product Line GAL / dGAL (GAL3-15/15 to GAL14-1100/1100) Works Best
These units are ideal for sites with limited installation space where high pressure is required. The two-stage contra-rotating design generates substantial delivery pressure within a compact footprint. They perform effectively in environments utilizing long ventilation ducts, generating total pressures reaching 26.1 in. wg. (6500 Pa).
Source: Korfmann Lufttechnik
https://korfmann.com/en/products/product-line-gal-dgal/gal3-15-15-to-gal14-1100-1100/
https://korfmann.com/en/products/product-line-gal-dgal/gal3-15-15-to-gal14-1100-1100/
Product Specifications
| Diameter | 11.8 to 55.1 in. (300 to 1400 mm) |
|---|---|
| Airflow Capacity | Approx. 105,900 CFM (50 m³/s) |
| Total Pressure Capacity | 26.1 in. wg. (6500 Pa) |
| Motor Shaft Power | 2 x 2.0 to 2 x 148 HP (2 x 1.5 to 2 x 110 kW) |
| Voltage Range | 400 to 1000 V |
| Protection Class | IP55 or higher |
Source: Korfmann Lufttechnik
https://korfmann.com/en/products/product-line-gal-dgal/gal3-15-15-to-gal14-1100-1100/
https://korfmann.com/en/products/product-line-gal-dgal/gal3-15-15-to-gal14-1100-1100/
Product Line ESN / dESN (ESN3-8 to ESN9-750)
Source: Korfmann Lufttechnik
https://korfmann.com/en/products/product-line-esn-desn-es-est/esn3-8-to-esn9-750/
https://korfmann.com/en/products/product-line-esn-desn-es-est/esn3-8-to-esn9-750/
Situations Where
Product Line ESN / dESN (ESN3-8 to ESN9-750) Works Best
This series is suited for versatile, standard ventilation applications. An explosion-proof configuration is available as an option, making it compliant with environments demanding strict safety regulations.
Featuring cast aluminum alloy impellers, these fans deliver stable and consistent airflow performance.
Source: Korfmann Lufttechnik
https://korfmann.com/en/products/product-line-esn-desn-es-est/esn3-8-to-esn9-750/
https://korfmann.com/en/products/product-line-esn-desn-es-est/esn3-8-to-esn9-750/
Product Specifications
| Diameter | 11.8 to 35.4 in. (300 to 900 mm) |
|---|---|
| Airflow Capacity | Approx. 46,600 CFM (22 m³/s) |
| Total Pressure Capacity | 14.9 in. wg. (3700 Pa) |
| Motor Shaft Power | 1.1 to 100 HP (0.8 to 75.0 kW) |
| Impeller Material | Cast Aluminum Alloy (EN AB 43000) |
| Protection Class | IP55 or higher |
Source: Korfmann Lufttechnik
https://korfmann.com/en/products/product-line-esn-desn-es-est/esn3-8-to-esn9-750/
https://korfmann.com/en/products/product-line-esn-desn-es-est/esn3-8-to-esn9-750/
Implementation Case Studies
of Korfmann Lufttechnik Industrial Fans
No specific examples of industrial fan use were available on the official website.
What are Korfmann Lufttechnik Industrial Fans?
High-Pressure, High-Volume Ventilation Systems for Harsh Underground Environments
Korfmann Lufttechnik's heavy-duty industrial fans are meticulously designed for operation under specialized and extreme conditions, such as mining and tunneling. Their product lineup includes models featuring contra-rotating technology for high-pressure delivery, as well as explosion-proof variations.
They provide reliable solutions capable of handling long-distance duct ventilation and confined installation spaces.
Our media independently researches and introduces recommended industrial fans based on specific needs like cooling, exhaust, and ventilation. Please check our 3 selected products below.
Company Information for Korfmann Lufttechnik
| Company Name | Korfmann Lufttechnik GmbH |
|---|---|
| Headquarters Address | Witten, Germany |
| Official Website | https://korfmann.com/ |
Three Recommended
Industrial Fan Products Chosen
by Cooling, Exhaust, and Ventilation
Industrial Fan Products Chosen
by Cooling, Exhaust, and Ventilation
Cooling
For Heat Stress Prevention
For Heat Stress Prevention
Gojoh
COOL FAN MIST
Source: Gojoh Official Website
(https://smile-fans.jp/products/cool-fan-mist/)
(https://smile-fans.jp/products/cool-fan-mist/)
6°C cooler than the surroundings (*1) for 8 hours. Powerful 25m reach + auto-swing to optimize your entire workspace.
Durable, hygienic stainless steel at a portable 210 lbs. Chemical-resistant and built for frequent relocation and long-term use.
| Type | Evaporative cooler |
|---|---|
| Dimensions (in/mm) |
Approx. 59.1" × 25.6" × 70.9" (1500 × 650 × 1800 mm) |
| Coverage Area |
Approx. 2,150–3,230 sq ft |
| Weight | Approx. 210 lb |
Exhaust
For Dust and Smoke Control in Confined Spaces
For Dust and Smoke Control in Confined Spaces
Allegro
8" COM-PAX-IAL Blower
Source: Allegro Official Website
(https://www.allegrosafety.com/product/8-axial-ac-plastic-mini-pak-blower/)
(https://www.allegrosafety.com/product/8-axial-ac-plastic-mini-pak-blower/)
Rapidly exhausts dust/smoke replacing approx. 23.5m³ of air/min (*2). Lightweight polyethylene body is corrosion, UV, and chemical resistant for harsh environments.
Weighs under 19 lbs (lighter than steel) with integrated ducting. Easy to carry and set up, ensuring ventilation protocols are never skipped due to hassle.
| Type | Portable ventilation blower |
|---|---|
| Dimensions (in/mm) |
Approx. 17.5" × 11.3" × 13.5" (445 × 286 × 343 mm) |
| Coverage Area |
N/A |
| Weight | Approx. 19 lb |
Ventilation
For Stagnant Air and Moisture Control
For Stagnant Air and Moisture Control
DuctSox
ZOO FANS H series
Source: DuctSox Official Website
(https://www.zoofans.com/our-company)
(https://www.zoofans.com/our-company)
Designed by spatial volume, not floor area. Creates a column of air mixing ceiling to floor to inhibit condensation, mold, and rust.
Includes one-touch mounting hardware. Low-cost installation even in warehouses where large HVLS fans won't fit.
| Type | Destratification Fan |
|---|---|
| Size (mm) | 445×391×551 (*3) |
| Coverage | 25 ft (*3) |
| Weight | 20 lb (*3) |
*1 Cool air temperature may vary depending on conditions such as ambient temperature and the surrounding environment. Because it uses water, use caution in areas where moisture is a concern.
*2 Basis and Calculation Method: Calculated based on the maximum airflow (Straight) of “791 CFM” for the “8" (20.3 cm) AXIAL AC PLASTIC MINI-PAK BLOWER (9532-15)” as listed in the catalog.
[Formula] 791 CFM × 0.02832 ≈ 22.4 m³/min (Converted as 1 CFM ≈ 0.02832 m³/min) | Source: Allegro Official Website [PDF] (https://www.allegrosafety.com/wp-content/uploads/2023/01/9532-15-9532-25-9532-15E-9532-25E-AC-Plastic-Blower.pdf)
*3 All specifications are for the H25-EC model.
*2 Basis and Calculation Method: Calculated based on the maximum airflow (Straight) of “791 CFM” for the “8" (20.3 cm) AXIAL AC PLASTIC MINI-PAK BLOWER (9532-15)” as listed in the catalog.
[Formula] 791 CFM × 0.02832 ≈ 22.4 m³/min (Converted as 1 CFM ≈ 0.02832 m³/min) | Source: Allegro Official Website [PDF] (https://www.allegrosafety.com/wp-content/uploads/2023/01/9532-15-9532-25-9532-15E-9532-25E-AC-Plastic-Blower.pdf)
*3 All specifications are for the H25-EC model.