OKAN
Funke has a comprehensive standard range in the oil/air cooler sector, which covers numerous mobile and stationary applications.
This includes, in the first instance, the Okan 2.79 cooler series, which can be adapted to suit a wide range of customer requirements due to its modular design. For example, special designs are available for marine and offshore applications, or for installation in areas where there is a high risk of explosion.
The Okan E series is also available. The Okan E series oil/air coolers have been specially developed for standard applications in the industrial hydraulics sector which do not impose any special requirements on the design of the oil/air cooler.
In addition to extensive documentation, 3D models of all oil/air coolers are included as step files.
DESIGN AND FUNCTION
The basic element is an aluminium cooler in bar and plate construction, as shown below. The oil tubes are fitted with turbulence elements to guarantee optimum heat transfer.
The fan mounted behind the cooler operates as suction in standard mode. The slat shape, fan blades and motor power are aerodynamically and thermodynamically coordinated to achieve a high degree of heat dissipation.
DESIGN OF A
OIL-/AIR-COOLING UNIT
Cooler
Support brackets
Fan guard
Three-phase motor
Fan cover
High-performance fan
SAE counterflange
CROSS SECTION OF A
OIL-/AIR-COOLING UNIT
- Tank
- Turbulence elements
- Air slats
- Side wall
OKAN E
OKAN II (LÄNGERER & REICH SYSTEM)
APPLICATIONS
- Cooling of oils, hydraulic fluids and emulsions using
ambient air, particularly in the field of mechanical and
plant engineering, construction machinery and special
vehicle manufacturing - Used as an additional cooler at peak load times (summer) – wherever water is not available or piping is too expensive
ADVANTAGES
- effectively low costs per kW heat dissipation
- sturdy, compact design with high standards of quality
- wide range of accessories and combinations available
- customer-specific designs possible
- low costs for installation
- variable installation position
- maximum available over a long service life
- virtually maintenance-free
OKAN 2.79
Operating data
13 sizes (see tables below)
- max. cooling capacity: approx. 6.2 kW/K
- max. operating temperature: for oil 100°C for emulsion 90°C
- max. operating pressure, static: 16 bar (size 15 to 10 bar)
- ambient temperatures: -20°C to +40°C
- cooling surfaces: 0.05 to 1.44m²
- fan drives: three-phase motor, direct current motor, hydro motor
- available up to size 10 in 1-way and 3-way versions
| Size | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 13 | 14 | 15 | |
| Cooler core (m²) | 0.050 | 0.080 | 0.100 | 0.160 | 0.200 | 0.250 | 0.315 | 0.400 | 0.500 | 0.600 | 0.800 | 1.000 | 1.440 | |
| Weight ≈ (kg) | 16 | 23 | 25 | 35 | 38 | 46 | 51 | 68 | 78 | 138 | 177 | 189 | 300 | |
| Dimensions ≈ (mm) | Width | 295 | 350 | 350 | 455 | 455 | 550 | 550 | 660 | 820 | 820 | 970 | 970 | 1286 |
| Height | 380 | 440 | 510 | 610 | 710 | 720 | 850 | 850 | 870 | 1020 | 1170 | 1360 | 1520 | |
| Depth | 425 | 470 | 470 | 540 | 540 | 575 | 575 | 635 | 635 | 710 | 810 | 810 | 800 | |
| Noise level 1m/7m (dB(A)) | 750 min-1 | – | – | – | 57/45 | 58/46 | 62/50 | 66/54 | 75/63 | 74/62 | 76/64 | 79/67 | 79/67 | 88/76 |
| 1000 min-1 | – | 59/47 | 59/47 | 64/52 | 65/53 | 70/58 | 72/60 | 80/68 | 80/68 | 82/70 | 85/73 | 86/74 | 95/83 | |
| 1500 min-1 | 61/49 | 70/58 | 70/58 | 75/63 | 75/63 | 82/70 | 81/69 | 90/78 | 91/79 | 92/80 | 92/80 | 95/83 | 99/87 | |
| 3000 min-1 | 79/67 | 84/72 | 84/72 | – | – | – | – | – | – | – | – | – | – |
OKAN E
Operating data
7 sizes (see table below)
- max. cooling capacity: approx. 1.9 kW/K
- max. operating temperature: for oil 100°C for emulsion 90°C
- max. operating pressure, static: 26 bar
- ambient temperatures: -20°C to +40°C
- cooling surfaces: 0.08 to 0.5m²
- fan drives: three-phase motor
- additional connections for monitoring temperature and pressure
| Size | 02 | 03 | 04 | 05 | 06 | 07 | 08 | |
| Cooler core (m²) | 0,08 | 0,15 | 0,15 | 0,22 | 0,35 | 0,43 | 0,50 | |
| Weight ≈ (kg) | 24 | 27 | 28 | 42 | 51 | 56 | 100 | |
| Dimensions ≈ (mm) | Width | 357 | 446 | 446 | 470 | 607 | 607 | 725 |
| Height | 420 | 520 | 520 | 690 | 790 | 940 | 960 | |
| Depth | 391 | 460 | 460 | 501 | 506 | 506 | 615 | |
| Noise level 1m/7m (dB(A)) | 750 min-1 | – | – | – | – | – | – | 70/58 |
| 1000 min-1 | – | 63/51 | 62/50 | 61/49 | 68/56 | 68/56 | 74/62 | |
| 1500 min-1 | 62/50 | 71/59 | 70/58 | 70/58 | 78/66 | 77/65 | 83/71 | |
| 3000 min-1 | 80/68 | – | – | – | – | – | – |
OPTIONAL EQUIPMENT
- Complete system incl. temperature control and pump
- Explosion-proof design
- Sea air-resistant surface protection
- Air filter for cooler core
DATA REQUIRED TO PREPARE OFFER
- Heat dissipation (kW)
- Oil flow
- Oil inlet temperature
- Ambient temperature
- Max. permissible noise level
- Motor type/voltage/frequency
BROCHURE OIL-/AIR-COOLING UNITS
DATASHEET OKAN 2
