Proline Kryomats

  • Overview
  • Features
  • Models
  • Specs
  • Accessories

Extra powerful cooling thermostats for bath applications from -90 up to 200 °C

The new Proline Kryomats are floor-standing, low temperature thermostats suitable for a wide variety of applications. They never fail to impress through their compact design and high cooling capacities, especially at low temperatures. All Proline Kryomats are fitted with the Command remote control for easy and user-friendly operation.

The units are equipped with a pressure pump optimized for internal Extra powerful cooling thermostats for bath applications from -90 up to 200 °C LAUDA Proline Kryomats circulation adjustable from performance level five to eight. To prevent moisture in the atmosphere from condensing at low temperatures, bath bridge and bath edge heating are integrated into the design. Proline Kryomats stand out for having the latest technologies and an excellent price-performance ratio.

Application examples

Constant temperatures:

  • Notch bending test
  • Drop test

Changing temperatures:

  • Determination of pour point
  • Brookfield test of lubricants
  • Test of slide bearings

Download a PDF of our Proline brochure:

LAUDA Proline Brochure (1.8 MB)

Working Temp Min.

Working temperature min.

-90 °C

Working Temp Max.

Working temperature max.

200 °C

Temp Stability

Temperature stability

0.05 ±K

The Proline Kryomats Advantages

Spacious bathrooms and large bath openings – ideal for bulky samples and effective throughput

Optimal circulation and temperature distribution in the entire bath thanks to adjustable pump nozzle


Removable Command control unit with graphic LCD display – easy and intuitive operation. Quick setting changes


Automatic adjustment of the control parameters via integrated software for adaptive control – saves time-consuming calculation of control parameters


Offset control head – allows installation of optional supplementary pumps for external applications


Integrated electrically heated cover plate and bath bridge heating – avoids condensation and ice build-up


Use of innovative cooling technology – high cooling capacity and low operating temperatures with very small footprint


Updated, adjustable pump nozzle – optimum circulation and temperature distribution throughout the entire bath


Spacious baths with large bath openings – accommodates various sample shapes and sizes with efficient flow


Thread sleeves as standard on the edge of the bath – allow for the fixing of testing equipment without further conversion measures


Intelligent cooling fan control – optimum heat discharge while reducing noise emission


Internal release valve – bath drain at front of unit; No protruding release valve

Proline Kryomats Air-cooled cooling thermostats

The air-cooled Proline Kryomats have a working temperature range from -50 and -90 up to 200 °C. The models are available with bath volumes of 30 and 40 liters. The Proline SmartCool system, with its energy saving digital cooling management, ensures that the cooling output is run in accordance with the application needs. That saves up to 75 percent of energy compared to standard cooling methods.

Proline Kryomats Water-cooled cooling thermostats

In the case of the water-cooled Proline Kryomats, the process heat is disipated with the use of facility cooling water. This largely prevents unnecessary heating of the surrounding environment. As a result of this type of cooling, even higher cooling capacities are achieved than with the aircooled units. The electronic cooling water management minimizes water consumption. The enhanced booster pumps, available as accessories, are particularly recommended for external applications where increased volume flow or greater pressures are required.

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Proline Kryomats

Technical features RP 3050 C RP 3050 CW RP 4050 C RP 4050 CW RP 3090 C RP 3090 CW RP 4090 C RP 4090 CW
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Working temperature min. °C -50 -50 -50 -50 -90 -90 -90 -90
Working temperature max. °C 200 200 200 200 200 200 200 200
Temperature stability ±K 0.05 0.01 0.01 0.01 0.05 0.01 0.01 0.01
Bath volume L 31.0 31.0 44.0 44.0 31.0 31.0 44.0 44.0
Bath depth mm 250 250 250 250 250 250 250 250
Pump pressure max. bar 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Pump flow max. L/min 19 19 19 19 19 19 19 19
Cat. No. 208 V; 3/PE; 60 Hz L001676 L001680 L001677 L001681 L001678 L001682 L001679 L001683

Interface modules
An RS 232/485 interface is integrated as a standard feature. The control head is equipped for two interface modules to be plugged into the rear of the unit.

Cat. No. Description Description
LRZ 913 RS 232/485 interface Electrically isolated, 9-pin SUB-D socket
LRZ 912 Analogue module 2 x In, 2 x Out, 0(4)…20 mA or 0…10 V
LRZ 915 Contact module SUB-D 3 x In, 3 x Out, 15-pin SUB-D
LRZ 914 Contact module NAMUR 1 x In, 1 x Out, NE 28, 2 DIN socket
LRZ 917 Profibus module Electrically isolated, 9-pin SUB-D socket

Suitable tubings for heat transfer liquids and cooling water
Available upon request.

Booster pumps
For higher flow rates and pressure for external systems, connections M 30 x 1.5 O

Cat. No. Description Temperature range Pressure max. Pump flow max.
LWZ 080 EMP 174 -100…150 °C 0.9 bar 90 L/min
LWZ 086 EMP 081 -40…150 °C 3.2 bar 40 L/min

For notch bending test

Cat. No. Suitable for
LUZ 008 RP 3050 C, RP 3050 CW, RP 3090 C, RP 3090 CW
LUZ 009 RP 4050 C, RP 4050 CW, RP 4090 C, RP 4090 CW

Pour point determination
Bath cover accommodates up to 16 metal beakers

Cat. No. Suitable for
UP 065 RP 4050 C, RP 4050 CW, RP 4090 C, RP 4090 CW