The Unimotive model series was created specifically for use in the automobile sector. The temperature control devices are made to function down to -45 °C with a water-ethylene glycol mixture that has corrosion protection (such Glysantin®). Typical application areas include temperature simulations, material testing, and temperature-dependent stress and load tests for automotive and functional components.
The optional “Flow Control Cube” enables exact flow rate measurement and control. Unimotive temperature control devices are perfect for integrating into test benches to ensure consistent temperatures, such as for quality control, battery testing, gear and bearing testing, climate and vacuum chamber temperature management, and calibration duties. Unimotive models stand out for their unique thermodynamics, which ensures highly precise and reproducible results.
Unimotive devices benefit from the established Unistat technology, which provides for the shortest heating and cooling durations as well as the highest temperature accuracy. All Unimotive versions are controlled by a 5.7" color touchscreen display with easy menu navigation.
The "GL" (Green Line) model versions use the natural refrigerant carbon dioxide (CO2) and hence are a completely ecologically beneficial alternative to devices using synthetic refrigerants.
Carbon dioxide (also known as R744) is a naturally occurring gas that has been used in refrigeration technologies since the nineteenth century. CO2 has no ozone depletion potential (ODP = 0), a minor global warming potential (GWP = 1), and is not combustible, poisonous, or chemically inactive.

Image Credit: Peter Huber Kältemaschinenbau SE
Functions Overview
- Environmentally friendly with natural refrigerant CO2
- Pilot ONE controller with 13-language menu navigation and a 5.7-inch touchscreen
- Extremely precise and repeatable tempering outcomes
- Highly effective working techniques reduce operating expenses and working time
- GWP = 1 has an extremely low potential for global warming and no potential for ozone depletion
- Choices for gauging and managing flow rate and pressure
- Adaptive temperature control, self-optimizing
- Direct use of a water-ethylene glycol blend that prevents corrosion (such as Glysantin®)
- Short heating and cooling times
- Sturdy circulation pump with magnetic coupling
Video Credit: Peter Huber Kältemaschinenbau SE
Controller

Image Credit: Peter Huber Kältemaschinenbau SE
The new multi-touch controller Pilot ONE provides a high-quality 5.7” touchscreen with graphic functions and easy menu navigation. The favorites menu, one-click operation, and technical glossary make it easy and quick to access important settings and information. Integrated USB and Ethernet interfaces make connections to a PC or network, such as for data recording and remote control, possible.
General and Temperature Control
Source: Peter Huber Kältemaschinenbau SE
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. |
Temperature range |
-45-95 °C |
Temperature stability |
±0.05 |
Display resolution |
0.01 K |
Alarm message |
optic, acoustic, relay |
Controller |
Pilot ONE |
Safety class |
III / FL |
Protection class |
IP20 |
Dimensions (W x D x H) |
918 x 963 x 1771 mm |
Weight, net |
812 kg |
Heating/Cooling Capacity
Source: Peter Huber Kältemaschinenbau SE
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. |
Heating capacity |
24 |
Cooling capacity |
20 |
0 |
-20 |
-30 |
-40 |
°C |
35 |
35 |
22 |
14 |
8.5 |
kW |
|
Refrigeration machine |
water-cooled, natural refrigerant |
Refrigerant 1st stage |
R-744 (A1, H280) |
Refrigerant quantity 1st stage |
8.7 kg |
Circulation Pump
Source: Peter Huber Kältemaschinenbau SE
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. |
Delivery capacity of pressure pump max. |
201 l/min; 5.3 bar |
Pump connection |
M38 x 1.5 AG male |
Max. permissible viscosity |
200 mm²/s |
Pump speed adjustable |
No |
Pump type |
Magnetically coupled, stainless steel |
Pump characteristics |
Pressure pump, speed not variable, magnetically coupled |
Connections
Source: Peter Huber Kältemaschinenbau SE
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. |
External sensor connection |
Pt100 |
Control input |
ECS ONE |
Control output (potential-free contact) |
POKO ONE |
Digital Interface |
Ethernet, USB (Host and Device), RS232 |
Operating Data
Source: Peter Huber Kältemaschinenbau SE
. |
. |
Permissible ambient temperature |
5-40 °C |
Filling volume min. |
8.9 l |
Expansion volume |
19.9 l |
Cooling water connection |
G3/4 AG |
Cooling water consumption at 15 °C, flow 0 °C |
3100 l/h |
Cooling water differential pressure min. |
1 bar |
Cooling water pressure max. |
6 bar |
Power supply |
400 V 3~ 50 Hz |
Current consumption max. |
62.5 A |
Fuse |
3x63 A |