HK 25 DD

Refrigeration machines for drawbar systems and semi-trailers

Main features

Evaporators for the lower and upper loading areas are completely integrated in the refrigeration machine outside the loading space

Loading space temperatures as low as -40°C.

Double evaporator surface, air throughput up to 10,000 m³/h.

Maximum payload by lightweight construction

Low noise due to large, slow-speed fans

Little maintenance due to hard-wearing components

Encapsulated isolated housing for thermal separation to the body

Serially with 4-way heat-pump control for rapid defrost cycles

Environmentally compatible refrigerant R410A

Quick repair and high readiness for operation by quick-change system

Long life

Technical specifications

For UK double-deck semi-trailers for simple and heavy distribution and long-distance transport. Different temperature ranges on each loading deck at any time, operation of the refrigeration machine also possible only on one loading deck.


Effective refrigeration [W] at
+30°C ambient temperature
Box temperature at ±0°C 21,100 W
Box temperature at -20°C 11,100 W
Box temperature at -30°C 6,900 W
Heating output
Heat pump control up to 35,000 W
Electric heating 8,600 W
H-CFC R410A -
Refrigerant compressor
Cylinder 4 -
Displacement 40.5 m³/h
Speed 1,450 rpm
Electric motor
Output 11 kW
Speed 1,450 rpm
Heat exchange surface 2x66.2
Cross-flow fan ØxL 2x160x1,040 mm
Motor output 2x1,100 W
Air volume 10,000 m³/h
Discharge velocity 15-20 m/sec
Throw, without duct 9-10 m
Heat exchange surface 70.2
Axial fan Ø 440/440 mm
Motor output 2x370 W
Capacity 24 kVA
Mains operation
Fuse (slow) 25 A
Refrigeration machine kg
Alternator 98 kg
Technical specifications at 60% of the truck engine rated speed and on mains operation, 400/415 V, 50 Hz.
Specifications are subject to change.

DD model marketed only in the UK because distinctly greater loading heights are possible there (bridge vertical clearance up to 5.30 m)
Date: 12/2002
Product finder:
Find the right FRIGOBLOCK for your application quickly and efficiently with the Product Finder.
Service finder:
Find your competent local FRIGOBLOCK service partner quickly and efficiently with the Service Finder.
This site uses cookies. By continuing we assume your permission to deploy cookies as detailed in our data protection.