Atlas Equipment Solutions

-20℃ non-sealed recirculating chiller

Name: -20℃ non-sealed recirculating chiller
Brand: Atlas Equipment Solutions
Availability: InStock

Pricing: Available upon request

Lead time: 7–21 days

Customization: Supported

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The -20 °C Non-Sealed Recirculating Chiller is an open-tank low-temperature cooling system designed for laboratory and small pilot-scale applications requiring stable circulation cooling. The unit provides reliable temperature control from -20 °C to room temperature, making it suitable for equipment that requires continuous low-temperature cooling.

The chiller adopts an open reservoir design, allowing convenient access to the coolant for monitoring, refilling, and cleaning. The refrigeration system combines a high-efficiency compressor, air-cooled condenser, and internally threaded copper evaporator, ensuring effective heat exchange and stable cooling performance.

Equipped with PT100 temperature sensors and multiple safety protections, including overvoltage, overcurrent, overheating, and leakage protection, the system ensures safe and stable operation. The unit is widely used with rotary evaporators, glass reactors, condensers, analytical instruments, and other laboratory equipment requiring reliable low-temperature circulation.

Models

Model	DLSB-5/20	DLSB-10/20	DLSB-20/20	DLSB-30/20	DLSB-50/20	DLSB-100/20
Temperature Range	-20 °C ~ RT (±1 °C)

Operating Conditions

Parameter	Specification
Ambient Temperature	≤30 °C
Optimum Humidity	≤60%
Voltage	110 V / 220 V / 380 V
Phase	Single phase / Three phase
Frequency	50 Hz

Power

Model	Power
DLSB-5/20	0.75 kW
DLSB-10/20	1 kW
DLSB-20/20	1.3 kW
DLSB-30/20	2.1 kW
DLSB-50/20	2.6 kW
DLSB-100/20	6 kW

Cooling Capacity

Temperature	5	10	20	30	50	100
25 °C (W)	1250	2010	2800	4600	6300	15750
0 °C (W)	700	1650	2300	3500	5100	13250
-20 °C (W)	240	450	600	800	1300	2800

Refrigeration System

Parameter	Specification
Compressor Type	Closed
Compressor Brand	Haili / Panasonic / Copeland / Danfoss
Refrigerant	R404A
Condenser Type	Air cooling
Fan Type	External rotor axial flow fan
Evaporator	Internally threaded copper pipe

Tank & Circulation System

Model	Tank Volume
DLSB-5/20	5 L
DLSB-10/20	10 L
DLSB-20/20	20 L
DLSB-30/20	30 L
DLSB-50/20	50 L
DLSB-100/20	100 L

Opening diameter: 180 – 320 mm

External circulation connections:

G1/2" internal thread → hose connector (11–16 mm)
G3/4" internal thread → hose connector (19 mm)

Circulating Pump

Parameter	Specification
Pump Type	Shield pump
Brand	Shanghai Jingyi
Power	100 W / 280 W
Rated Head	6 m / 12 m
Flow Rate	25 L/min / 35 L/min

Dimensions & Weight

Model	Length	Width	Height	Weight
5	480 mm	350 mm	680 mm	45 kg
10	540 mm	420 mm	780 mm	57 kg
20	570 mm	490 mm	840 mm	71 kg
30	630 mm	530 mm	1000 mm	88 kg
50	730 mm	630 mm	1190 mm	116 kg
100	975 mm	760 mm	1330 mm	180 kg