PRESTO Process System Compact Circulators

Minimum working temperature	Type	Optional Certification	SKU	Price
-30°C	Air-Cooled	None	JL:9420300.14	$25,042
-30°C	Air-Cooled	US NRTL Certified	JL:9420300.14.CSA/UL	$26,927
-40°C	Air-Cooled	None	JL:9420401.14	$34,412
-40°C	Air-Cooled	US NRTL Certified	JL:9420401.14.CSA/UL	$36,354
-40°C	Water-Cooled	None	JL:9421401.14	$35,688
-40°C	Water-Cooled	US NRTL Certified	JL:9421401.14.CSA/UL	$37,622

Category	Dynamic Temperature Control Systems
Manufacturer	Julabo
Country of manufacture	Germany

Median product fulfillment time
Median fulfillment time for Julabo products

Overview

The A30, A40 and W40 process circulators combine high performance and a very compact design with the advantages of the PRESTO series for a working temperature range down to -30 or -40 °C.

Air-cooled or water-cooled The new PRESTO units are available as air-cooled or water-cooled units.

Air-cooled units do not require water and can be installed anywhere. If you are looking for a flexible solution or if you expect to move the unit frequently, an air-cooled unit will be the best choice. However, it is important to know that air-cooled units slightly elevate the ambient temperature during operation.
Water-cooled units must be connected to an existing cooling water line. These units are even more quiet and can be virtually enclosed during operation. Robust heat exchangers are installed in the water-cooled new PRESTO units. Clogging of the heat exchanger by particles or impure water is virtually impossible.

Features:

Heating capacity up to 2.7 kW
Cooling capacity up to 1.2 kW
Pump pressure up to 19 psi, max. flow rate 40 l/min
Temperature stability ±0.01 °C ... ±0.05 °C
Built-in 5.7’’ industrial color touchscreen
Ports for USB, Ethernet, RS232, Modbus
Alarm output
External Pt100 sensor connection
Analog connections, RS485, Profibus DP (accessory)
Second external Pt100 sensor connection for A40 and W40 (accessory)
USB (host and device)
Ethernet interface
Slot for SD cards
Modbus
RS232

Key Attributes

Type	Circulating
Incubation	Yes
Refrigeration	Yes
Temp Range (°C)	-40 ... +250°C (-30°C for A30 model)
Capacity (L)	N/A
Circulation	External Only
Brand	Julabo
MaxFlow Rate (l/min)	15, or 38
Temp Stability (°C)	±0.01 to 0.05°C
Timer	Yes
Alarms	Yes
Digital or Mechanical	Digital
Data connection	Yes
Tank Material	N/A
Sample Agitation	No
Media Racks Available	No
Warranty (years)	1
Weight (lb)	137-174

Manufacturer Specifications

Dimensions and volumes	A30	A40	W40
Dimensions (W × L × H)	9.8 x 23.2 x 24.4 in.	13 x 23.2 x 26.4 in.	13 x 23.2 x 26.4 in.
Internal usable expansion volume	1.5 l	2.7 l	2.7 l
Minimal process volume	2.4 l	3.5 l	3.5 l
Active heat exchanger volume	1.4 l	1.7 l	1.7 l
Weight	136.7 lbs	174.2 lbs	172 lbs
Pump connections	M24x1.5 male	M24x1.5 male	M24x1.5 male
Working temperature range	-30.0 ... +250.0 °C	-40.0 ... +250.0 °C	-40.0 ... +250.0 °C
Temperature stability	±0.01 ... ±0.05 °C	±0.01 ... ±0.05 °C	±0.01 ... ±0.05 °C
Setting the resolution of the temperature display	0.01 °C	0.01 °C	0.01 °C
Temperature display resolution	0.01 °C	0.01 °C	0.01 °C
Ambient temperature	+5.0 ... +40.0 °C	+5.0 ... +40.0 °C	+5.0 ... +40.0 °C
Data based on voltage version:	208V/60Hz (Nema N6-20 Plug)	208V/60Hz (Nema N6-20 Plug)	208V/60Hz (Nema N6-20 Plug)
Heating capacity	2 kW	2.3 kW	2.3 kW
Cooling capacity (Medium: Ethanol)	200°C=0.5kW \ 100°C=0.5kW \ 20°C=0.5kW \ 0°C=0.4kW \ -10°C=0.3kW \ -20°C=0.2kW \ -30°C=0.05kW	200°C=1.2kW \ 100°C=1.2kW \ 20°C=1.2kW \ 0°C=0.9kW \ -10°C=0.8kW \ -20°C=0.6kW \ -30°C=0.3kW \ -40°C=0.1kW	200°C=1.2kW \ 100°C=1.2kW \ 20°C=1.2kW \ 0°C=1kW \ -10°C=0.8kW \ -20°C=0.55kW \ -30°C=0.3kW \ -40°C=0.07kW
Pump capacity flow rate	15 l/min	16 ... 38 l/min	16 ... 38 l/min
Pump capacity flow pressure	7.3 bar	1.5 ... 18.9 psi	1.5 ... 18.9 psi
Viscosity max.	50 cST	50 cST	50 cST
Refrigerant stage 1	R449A	R449A	R449A
Global Warming Potential for R449A	1397	1397	1397
Filling volume	314 g	430 g	380 g
Carbon dioxide equivalent	0.439 t	0.601 t	0.531 t
Cooling of compressor	1-stage Air	1-stage Air	1-stage Water
Other	N/A	N/A	Cooling water pressure max. 87 ... 79.8 psi
Sound pressure level	54 dbA	55 dbA	53 dbA
Classification according to DIN12876-1	Classification III (FL)	Classification III (FL)	Classification III (FL)
IP Code according to IEC 60529	IP 21	IP 21	IP 21
Pump type	Centrifugal Pump (Magnetically coupled)	Centrifugal Pump (Magnetically coupled)	Centrifugal Pump (Magnetically coupled)
External pt100 sensor connection	integrated	integrated	integrated
2nd external Pt100 sensor connection	not available	accessory	accessory
Integrated programmer	8x60 steps	8x60 steps	8x60 steps
Temperature control	ICC	ICC	ICC
Absolute temperature calibration	3 Point Calibration	3 Point Calibration	3 Point Calibration
Temperature display	5.7" TFT Touchscreen	5.7" TFT Touchscreen	5.7" TFT Touchscreen
Temperature setting	Touchscreen	Touchscreen	Touchscreen
Cooling Water Connection	N/A	N/A	G¾ in.
Cooling water temperature max.	N/A	N/A	40 °C
1.0Cooling water consumption	N/A	N/A	1 l/min
Cooling water difference pressure	N/A	N/A	7.3 bar

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https://labsup.net/products/presto-process-system-compact-circulators 7352072372337 PRESTO Process System Compact Circulators //labsup.net/cdn/shop/files/9420300_PRESTO-A30_1_8bb4e305-021c-4e4b-a3f2-045cd5d98df4_large.jpg?v=1756181086 25042 USD InStock Dynamic Temperature Control Systems

Overview

The A30, A40 and W40 process circulators combine high performance and a very compact design with the advantages of the PRESTO series for a working temperature range down to -30 or -40 °C.

Air-cooled or water-cooled The new PRESTO units are available as air-cooled or water-cooled units.

Air-cooled units do not require water and can be installed anywhere. If you are looking for a flexible solution or if you expect to move the unit frequently, an air-cooled unit will be the best choice. However, it is important to know that air-cooled units slightly elevate the ambient temperature during operation.
Water-cooled units must be connected to an existing cooling water line. These units are even more quiet and can be virtually enclosed during operation. Robust heat exchangers are installed in the water-cooled new PRESTO units. Clogging of the heat exchanger by particles or impure water is virtually impossible.

Features:

Heating capacity up to 2.7 kW
Cooling capacity up to 1.2 kW
Pump pressure up to 19 psi, max. flow rate 40 l/min
Temperature stability ±0.01 °C ... ±0.05 °C
Built-in 5.7’’ industrial color touchscreen
Ports for USB, Ethernet, RS232, Modbus
Alarm output
External Pt100 sensor connection
Analog connections, RS485, Profibus DP (accessory)
Second external Pt100 sensor connection for A40 and W40 (accessory)
USB (host and device)
Ethernet interface
Slot for SD cards
Modbus
RS232

Key Attributes

Type	Circulating
Incubation	Yes
Refrigeration	Yes
Temp Range (°C)	-40 ... +250°C (-30°C for A30 model)
Capacity (L)	N/A
Circulation	External Only
Brand	Julabo
MaxFlow Rate (l/min)	15, or 38
Temp Stability (°C)	±0.01 to 0.05°C
Timer	Yes
Alarms	Yes
Digital or Mechanical	Digital
Data connection	Yes
Tank Material	N/A
Sample Agitation	No
Media Racks Available	No
Warranty (years)	1
Weight (lb)	137-174

Manufacturer Specifications

Dimensions and volumes	A30	A40	W40
Dimensions (W × L × H)	9.8 x 23.2 x 24.4 in.	13 x 23.2 x 26.4 in.	13 x 23.2 x 26.4 in.
Internal usable expansion volume	1.5 l	2.7 l	2.7 l
Minimal process volume	2.4 l	3.5 l	3.5 l
Active heat exchanger volume	1.4 l	1.7 l	1.7 l
Weight	136.7 lbs	174.2 lbs	172 lbs
Pump connections	M24x1.5 male	M24x1.5 male	M24x1.5 male
Working temperature range	-30.0 ... +250.0 °C	-40.0 ... +250.0 °C	-40.0 ... +250.0 °C
Temperature stability	±0.01 ... ±0.05 °C	±0.01 ... ±0.05 °C	±0.01 ... ±0.05 °C
Setting the resolution of the temperature display	0.01 °C	0.01 °C	0.01 °C
Temperature display resolution	0.01 °C	0.01 °C	0.01 °C
Ambient temperature	+5.0 ... +40.0 °C	+5.0 ... +40.0 °C	+5.0 ... +40.0 °C
Data based on voltage version:	208V/60Hz (Nema N6-20 Plug)	208V/60Hz (Nema N6-20 Plug)	208V/60Hz (Nema N6-20 Plug)
Heating capacity	2 kW	2.3 kW	2.3 kW
Cooling capacity (Medium: Ethanol)	200°C=0.5kW \ 100°C=0.5kW \ 20°C=0.5kW \ 0°C=0.4kW \ -10°C=0.3kW \ -20°C=0.2kW \ -30°C=0.05kW	200°C=1.2kW \ 100°C=1.2kW \ 20°C=1.2kW \ 0°C=0.9kW \ -10°C=0.8kW \ -20°C=0.6kW \ -30°C=0.3kW \ -40°C=0.1kW	200°C=1.2kW \ 100°C=1.2kW \ 20°C=1.2kW \ 0°C=1kW \ -10°C=0.8kW \ -20°C=0.55kW \ -30°C=0.3kW \ -40°C=0.07kW
Pump capacity flow rate	15 l/min	16 ... 38 l/min	16 ... 38 l/min
Pump capacity flow pressure	7.3 bar	1.5 ... 18.9 psi	1.5 ... 18.9 psi
Viscosity max.	50 cST	50 cST	50 cST
Refrigerant stage 1	R449A	R449A	R449A
Global Warming Potential for R449A	1397	1397	1397
Filling volume	314 g	430 g	380 g
Carbon dioxide equivalent	0.439 t	0.601 t	0.531 t
Cooling of compressor	1-stage Air	1-stage Air	1-stage Water
Other	N/A	N/A	Cooling water pressure max. 87 ... 79.8 psi
Sound pressure level	54 dbA	55 dbA	53 dbA
Classification according to DIN12876-1	Classification III (FL)	Classification III (FL)	Classification III (FL)
IP Code according to IEC 60529	IP 21	IP 21	IP 21
Pump type	Centrifugal Pump (Magnetically coupled)	Centrifugal Pump (Magnetically coupled)	Centrifugal Pump (Magnetically coupled)
External pt100 sensor connection	integrated	integrated	integrated
2nd external Pt100 sensor connection	not available	accessory	accessory
Integrated programmer	8x60 steps	8x60 steps	8x60 steps
Temperature control	ICC	ICC	ICC
Absolute temperature calibration	3 Point Calibration	3 Point Calibration	3 Point Calibration
Temperature display	5.7" TFT Touchscreen	5.7" TFT Touchscreen	5.7" TFT Touchscreen
Temperature setting	Touchscreen	Touchscreen	Touchscreen
Cooling Water Connection	N/A	N/A	G¾ in.
Cooling water temperature max.	N/A	N/A	40 °C
1.0Cooling water consumption	N/A	N/A	1 l/min
Cooling water difference pressure	N/A	N/A	7.3 bar

Julabo 2025-03-21

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