The following data describe the MSBR‑20SWISS recirculating chiller from MASTER SCIENCE. This unit provides precise temperature control for laboratory applications including rotary evaporators, glass reactors, and other heat‑sensitive equipment. All values are measured under the manufacturer‘s standard test conditions.

Technical Specifications

• Model number: MSBR‑20SWISS

• Product name: Recirculating chiller (cooling recirculating chiller)

• Storage tank capacity: 30 L

• Temperature range: –20°C to 20°C

• Temperature accuracy: ±2°C

• Cooling capacity at 10°C: 2500 W

• Refrigerant: R404A

• Total power: 1600 W

• Power requirements: AC220V/50Hz

• Pump power: 550 W

• Maximum pump flow: 30 L/min

• Maximum head: 25 m

• Inlet/Outlet pipe diameter: φ12 mm

• Liquid storage volume: 25 L

• Weight: 76 kg

• Noise level: ≤75 dB

• Dimensions (W × D × H) including casters: 450 × 600 × 821 mm

• Display: Large LCD display screen with user‑friendly interface

• Temperature control: P.I.D controller provides accurate and reliable temperature control

• Timer: Adjustable from 1 minute to 5,999 minutes

• Circulating pump: Independent switch for easy starting and stopping

• Safety features: Temperature deviation alarm, over‑current protection

• Over‑temperature protection: Independent protection meets DIN 12880 International standard requirements

• Liquid level indication: Display window for intuitive observation of liquid level in tank

• Data interface: Optional RS‑485 or USB ports for data collection

• Heating capability: Unique heating method up to 80°C (BR‑H series – not standard on MSBR‑20SWISS)

• Programming: 63 programmable steps (7 periods × 9 steps) available on BR‑H series

Key benefits for laboratory cooling applications

The specifications above translate into practical improvements for temperature‑sensitive laboratory workflows. Each point below connects a feature to a measurable outcome.

Precise temperature control for sensitive equipment – The P.I.D temperature controller maintains the setpoint within ±2°C. A rotary evaporator running a heat‑sensitive compound stays at the optimal condensing temperature. A glass reactor performing an exothermic reaction receives consistent cooling throughout the run.

Large 30L stainless steel tank for extended operation – The 30L storage tank provides sufficient thermal mass for long‑duration experiments. A researcher running an 8‑hour rotary evaporation session does not need to stop and refill. The stainless steel construction resists corrosion and cleans easily.

High cooling capacity for demanding applications – The 2500 W cooling capacity at 10°C handles multiple pieces of equipment simultaneously. A laboratory running two rotary evaporators and a small reactor connects all three to a single chiller. One unit replaces three smaller recirculating baths.

Powerful pump with 30 L/min flow and 25m head – The 550W pump delivers 30 litres per minute with a maximum head of 25 metres. The chiller sits on the floor while the rotary evaporator operates on a high bench. The pump overcomes the vertical distance without losing flow rate.

User‑friendly LCD display and timer – The large LCD display shows set temperature, actual temperature, and operating status at a glance. The adjustable timer (1 to 5,999 minutes) allows automated shutdown after a programmed duration. An operator starts the chiller at 9 AM and returns at 5 PM to find it switched off automatically.

Independent circulating pump switch – The pump operates independently from the cooling system. A laboratory technician circulates room‑temperature water through equipment for cleaning or flushing without running the compressor. Energy consumption drops during non‑cooling operations.

Safety features for unattended operation – Temperature deviation alarm and over‑current protection alert the user to abnormal conditions. The independent over‑temperature protection meets DIN 12880 International standards. A researcher running an overnight experiment sleeps knowing the chiller will shut down safely if a fault occurs.

Common frustrations with laboratory cooling – and how this chiller solves them

Pain point: Inconsistent cooling temperatures ruin experiments.
Fluctuating coolant temperatures cause variable condensation rates in rotary evaporators and inconsistent reaction conditions in glass reactors. The MSBR‑20SWISS recirculating chiller (a P.I.D‑controlled cooling system with ±2°C accuracy) maintains the set temperature throughout the run. A chemist distilling a temperature‑sensitive solvent sees consistent recovery rates from batch to batch.

Pain point: Small tanks require constant refilling.
A 5‑litre reservoir runs dry after an hour of operation, forcing the operator to stop and refill. The same MSBR‑20SWISS recirculating chiller (a 30L stainless steel tank model for extended operation) holds enough coolant for a full working day. A quality control laboratory running 20 samples back‑to‑back completes the entire batch without interruption.

Pain point: Insufficient cooling capacity for multiple instruments.
One rotary evaporator consumes the full capacity of a small chiller, leaving no room for additional equipment. The MSBR‑20SWISS recirculating chiller (a 2500W cooling capacity unit for multi‑instrument support) supplies chilled water to two rotary evaporators and a jacketed reactor simultaneously. A shared laboratory facility reduces equipment costs by using one chiller for multiple workstations.

Pain point: No visibility into liquid level leads to dry running.
The operator cannot see when the tank is low, and the pump runs dry, damaging the seals. The MSBR‑20SWISS recirculating chiller (featuring a liquid level display window for intuitive observation) shows the coolant level at a glance. A quick visual check before starting the experiment prevents dry running and extends pump life.

Pain point: Complex programming intimidates new users.
Multi‑step temperature profiles with dozens of parameters confuse trainees and lead to setup errors. The MSBR‑20SWISS recirculating chiller (a straightforward unit with independent pump switch and adjustable timer) keeps operation simple. The operator sets the temperature, starts the pump, and presses the timer. No complex programming, no training manual required.

Which laboratories choose the MSBR‑20SWISS

Chemistry and pharmaceutical research laboratories – Control the temperature of rotary evaporators for solvent removal and sample concentration. The 30L tank supports extended distillation runs. The 2500W cooling capacity handles multiple evaporators simultaneously.

Chemical synthesis and pilot plant facilities – Supply chilled water to jacketed glass reactors for temperature‑controlled reactions. The 25m head allows the chiller to be placed on the floor while the reactor sits on a high bench. The stainless steel tank resists corrosion from aggressive solvents.

Quality control and analytical testing laboratories – Maintain consistent temperatures for viscosity measurements, density determinations, and other temperature‑sensitive tests. The ±2°C accuracy meets the requirements of many standard test methods.

Academic teaching laboratories – Demonstrate temperature control principles to undergraduate students. The simple interface and LCD display make the equipment accessible to novice users. The independent pump switch allows circulation demonstrations without running the compressor.

Food and beverage testing laboratories – Cool samples for sensory evaluation and shelf‑life testing. The R404A refrigerant provides reliable cooling at the temperatures required for food product analysis.

Physical configuration and daily operation

Installation – The unit measures 450 × 600 × 821 mm including casters and weighs 76 kg. Place the chiller on a level floor with adequate ventilation. The casters allow positioning and locking.

Connecting equipment – Connect the inlet and outlet hoses (φ12 mm pipe diameter) from the chiller to the rotary evaporator or reactor. The pump provides up to 30 L/min flow and 25m head.

Setting the temperature – Turn on the main power. The LCD display illuminates. Use the arrow keys to set the desired temperature within the –20°C to 20°C range. The P.I.D controller automatically adjusts the cooling output to maintain the setpoint.

Starting the pump – Press the independent circulating pump switch to start the flow of coolant. The pump can run independently of the compressor for flushing or circulation at room temperature.

Setting the timer – Press the timer button. Enter the desired duration from 1 minute to 5,999 minutes. The chiller automatically stops at the end of the programmed time.

Monitoring liquid level – Observe the liquid level through the display window on the front panel. Top up with coolant when the level drops below the minimum mark.

Maintenance and care

Cleaning – The stainless steel bath chamber has no sharp angles, making cleaning simple. Drain the coolant and wipe the interior with a soft cloth and mild detergent. The corrosion‑resistant stainless steel surface resists damage from cleaning agents.

Refrigerant – The unit uses R404A refrigerant. Refrigerant servicing must be performed by qualified technicians. The manufacturer recommends annual inspection of the refrigeration system.

Pump maintenance – The 550W pump requires no routine maintenance. Check the inlet and outlet connections periodically for leaks. The pump flow rate should be verified annually.

Safety checks – Test the temperature deviation alarm and over‑current protection monthly. The independent over‑temperature protection (DIN 12880) should be verified annually.

Optional accessories

• RS‑485 communication interface for remote monitoring and data logging

• USB port for direct data export to a computer or USB drive

• Additional inlet/outlet hoses and fittings

• Replacement pump seals and gaskets

Ordering information

The MSBR‑20SWISS ships as a complete unit including:

• MSBR‑20SWISS recirculating chiller with 30L stainless steel tank

• P.I.D temperature controller with large LCD display

• Independent circulating pump (550W, 30 L/min, 25m head)

• Adjustable timer (1 to 5,999 minutes)

• Casters (4, lockable)

• Inlet and outlet hoses (φ12 mm diameter)

• Power cord (AC220V/50Hz)

• User manual with calibration certificate

• Safety documentation

The customer should specify the following when ordering:

1. Model number (MSBR‑20SWISS)

2. Voltage confirmation (AC220V/50Hz standard)

3. Any optional accessories (RS‑485, USB, additional hoses)