DJ
RETEKOOL
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| Quantity: | |
▪ The cubic unit cooler is designed for industrial refrigeration, conservation or deep-freezing applications.
▪ version T (large heat-exchange surface):
- Adapted to humidity-sensitive products.
- Reduced number of daily defrost cycles offering a reduction in electrical power consumption.
▪ version H (high efficiency):
- Adapted to the storage of packed products.
▪ Wide range of options for specific industrial applications (pressure sleeve, defrost…)
▪ 4 fin spacing distances: 4,23 - 6,35 - 9 - 12 mm.
▪ 2 fan diameters for air throw adapted to the application.
▪ Two-speed fans as standard.

D: Series Name
DJ: Temperature L: BELOW -25 degree
1. Material: copper, aluminum, galvanized plate.
2. Copper pipe: diameter 7, 7.94, 9.52, inner grooved or smooth tube.
3. Aluminum foil: hydrophilic or bare
4. Fin type: louver fin, flat fin, corrugated fin
5. Pitch of fins: Ø7 1.1~1.8mm Ø7.94 1.4~2.0 mm Ø9.52 1.4~2.3 mm
6. Pitch of holes and pitch of rows: 20.5x12.7mm, 22x19.05mm, 21x12.7mm, 25.4x22mm equilateral triangle arrangement.
| Series 1 | Series 2 | Series 3 | Series 4 |
Tube Diameter | Φ 9.52 | Φ9.52 | Φ7 | Φ 7.94 |
Hole Space(mm) | 25 | 25.4 | 20.5 | 22 |
Row Space(mm) | 21.65 | 22 | 12.7 | 19.05 |
Tube Material | Copper, Aluminum | Copper, Aluminum | Copper, Aluminum | Copper, Aluminum |
Type of Tube | Smooth Tube, | Smooth Tube, | Smooth Tube, | Smooth Tube, |
Fin Surface | Louver Fin, | Flat Fin, | Flat Fin, | Louver Fin |
Fin Type | Hydrophilic Foil, | Hydrophilic Foil, | Hydrophilic Foil, | Hydrophilic Foil, |
Fin Thickness(mm) | 0.095~0.2 | 0.095~0.2 | 0.095~0.2 | 0.095~0.2 |
Fin Space(mm) | 1.4~2.3 mm | 1.4~2.3 mm | 1.1~1.8mm | 1.4~2.0 mm |
Besides the specification above we can also manufacture it according to your sample or drawing.

▪ The cubic unit cooler is designed for industrial refrigeration, conservation or deep-freezing applications.
▪ version T (large heat-exchange surface):
- Adapted to humidity-sensitive products.
- Reduced number of daily defrost cycles offering a reduction in electrical power consumption.
▪ version H (high efficiency):
- Adapted to the storage of packed products.
▪ Wide range of options for specific industrial applications (pressure sleeve, defrost…)
▪ 4 fin spacing distances: 4,23 - 6,35 - 9 - 12 mm.
▪ 2 fan diameters for air throw adapted to the application.
▪ Two-speed fans as standard.

D: Series Name
DJ: Temperature L: BELOW -25 degree
1. Material: copper, aluminum, galvanized plate.
2. Copper pipe: diameter 7, 7.94, 9.52, inner grooved or smooth tube.
3. Aluminum foil: hydrophilic or bare
4. Fin type: louver fin, flat fin, corrugated fin
5. Pitch of fins: Ø7 1.1~1.8mm Ø7.94 1.4~2.0 mm Ø9.52 1.4~2.3 mm
6. Pitch of holes and pitch of rows: 20.5x12.7mm, 22x19.05mm, 21x12.7mm, 25.4x22mm equilateral triangle arrangement.
| Series 1 | Series 2 | Series 3 | Series 4 |
Tube Diameter | Φ 9.52 | Φ9.52 | Φ7 | Φ 7.94 |
Hole Space(mm) | 25 | 25.4 | 20.5 | 22 |
Row Space(mm) | 21.65 | 22 | 12.7 | 19.05 |
Tube Material | Copper, Aluminum | Copper, Aluminum | Copper, Aluminum | Copper, Aluminum |
Type of Tube | Smooth Tube, | Smooth Tube, | Smooth Tube, | Smooth Tube, |
Fin Surface | Louver Fin, | Flat Fin, | Flat Fin, | Louver Fin |
Fin Type | Hydrophilic Foil, | Hydrophilic Foil, | Hydrophilic Foil, | Hydrophilic Foil, |
Fin Thickness(mm) | 0.095~0.2 | 0.095~0.2 | 0.095~0.2 | 0.095~0.2 |
Fin Space(mm) | 1.4~2.3 mm | 1.4~2.3 mm | 1.1~1.8mm | 1.4~2.0 mm |
Besides the specification above we can also manufacture it according to your sample or drawing.
