Low Temperature Circulator - Recirculating Chiller - -20°C - 2.5 L Tank

The Master Science Low Temperature Circulator supplies cooled liquid from room temperature down to -20 °C for rotary evaporators, condensers, reactors and other lab equipment. A sealed refrigeration system works with PID control to cool quickly and hold the set point within ±0.5 °C.

The unit is compact and quiet, so it can stand on a bench or inside a fume hood next to the instrument it serves.

Technical Specifications

Specifications of the Master Science Low Temperature Circulator:

• Brand: Master Science
• Model Number: MSRECL20-2XSWISS
• SKU: MSRECL20-2XSWISS
• Brand: Master Science
• Model Number: MSRECL20-2XSWISS
• SKU: MSRECL20-2XSWISS
• Temperature Range: -20 °C to room temperature
• Minimum Temperature (no load): -20 °C
• Temperature Resolution: 0.01 °C
• Control Accuracy: ±0.5 °C
• Tank Volume: 2.5 L, SUS304 stainless steel
• Bath Fluids: Ethanol, ethylene glycol, antifreeze
• Maximum Flow Rate: 18 L/min
• Maximum Head / Pressure: 7 m / 0.6 bar
• Display: 5-inch touch screen with temperature, time, cooling and circulation indicators
• Cooling Capacity: 700 W at 20 °C, 420 W at 0 °C, 280 W at -10 °C, 120 W at -20 °C
• Compressor: 480 W / 3.1 A
• Refrigerant: R404A
• Circulation Connectors: Hose barb, 10 mm OD
• Housing: Powder-coated cold-rolled steel
• Other: Drain valve, timer, level window, low level alarm
• Power Supply: 220 to 240 V, 50 Hz
• Total Power: 580 W
• Ambient Temperature: 5 to 35 °C
• Dimensions (W × D × H): 240 × 420 × 475 mm
• Net / Gross Weight: 28 kg / 34 kg

Key Benefits

• Stable cooling: the Master Science Low Temperature Circulator holds ±0.5 °C.
• Saves tap water: closed-loop cooling replaces running water through condensers.
• Easy to read and set: 5-inch touch screen.
• Protects the pump: low level alarm and level window.
• Small footprint: 240 mm wide, fits beside a rotary evaporator.

Pair it with a Master Science compact rotary evaporator.

Product Features

Cooling

• Sealed compressor refrigeration
• PID temperature control
• Down to -20 °C

Circulation

• 18 L/min pump, 7 m head
• 10 mm hose barb connectors
• Drain valve

Operation

• 5-inch touch screen
• Timer
• Low level alarm

Applications

The Master Science Low Temperature Circulator is used with:

• Rotary evaporators for concentration and solvent recovery
• Extraction, crystallisation and drying setups
• Jacketed reactors and condensers
• Pharmaceutical R&D and food testing
• University chemistry labs

Optional Accessories

• RS485 or RS232 communication interface
• Parallel interface

Common Laboratory Problems and How This Circulator Helps

How the Master Science Low Temperature Circulator solves frequent cooling problems:

• Poor solvent recovery: condenser stays cold at the set point.
• Wasted tap water: closed-loop recirculation.
• Pump damage from low fluid: low level alarm.
• No space in the hood: compact cabinet.