DYNEO DD 4L Refrigerated and Heating Circulators
SKU: 41729013186

DYNEO DD 4L Refrigerated and Heating Circulators

Sale price$4317.30 Regular price$4797.00
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Description

DYNEO DD 4L Refrigerated and Heating CirculatorsOverview New temperature control technology for demanding applications DYNEO DD heating circulators for internal and external applications are equipped with closed bath tanks. The tanks are well insulated and include a coil for counter cooling. An integrated drain tap makes emptying the tank safe and clean. The multilingual 3. 5 inch color display and unique rotary knob provide for straightforward and intuitive operation. Available in 2 different size

Overview

New temperature control technology for demanding applications DYNEO DD heating circulators for internal and external applications are equipped with closed bath tanks. The tanks are well insulated and include a coil for counter-cooling. An integrated drain tap makes emptying the tank safe and clean. The multilingual 3.5-inch color display and unique rotary knob provide for straightforward and intuitive operation.

Available in 2 different size configurations to accommodate your lab's requirements. DYNEO thermostats can optionally be equipped with analogue and digital interfaces.

Features:

  • USB connection
  • Removable ventilation grid
  • Space-saving cooling coil design provides more usable space in the bath tank
  • For internal and external applications
  • Powerful and infinitely adjustable pressure pump
  • Flow rate 27 l/min, pressure 0.7 bar
  • Easy switching between internal and external circulation
  • Large color TFT display, multilingual interface
  • Central rotary knob (controller) simplifies operation
  • Integrated programmer
  • Integrated external Pt100 connection
  • RS232 interface or analog interfaces (optional)
  • Powerful cooling machines
  • Optimized cooling coil design saves space in the bath tank
  • Bath cover included with delivery
  • Integrated drain makes emptying liquid easy and safe.
Key Attributes
Type Stirred / Circulating Baths
Incubation Yes
Refrigeration Yes
Temp Range (°C) A -20 to 200 (DD-300F model is -25)
Capacity (L) 3 to 4
Circulation 8-27 l/min
Brand Julabo
MaxFlow Rate (l/min) 27
Temp Stability (°C) ±0.01
Timer Yes
Alarms Yes
Digital or Mechanical Digital or analog option
Data connection USB and Optional analog or RS232 connection
Tank Material Stainless Steel
Sample Agitation No
Media Racks Available No
Warranty (years) 1
Weight (lb) Varies by model
Width (in) Varies by model
Depth (in) Varies by model
Height (in) Varies by model

 

Manufacturer Specifications

Model

DD-200F

DD-201F

DD-300F

Dimensions (W × L × H)

9.1 x 15.4 x 25.6 in.

17.3 x 16.1 x 17.3 in.

9.4 x 16.5 x 26 in.

Filling volume

3 ... 4 l

Weight

56.7 lbs

54.5 lbs

61.1 lbs

Pump connections

M16x1 male

Barbed fittings inner diameter

8/12 mm

Working temperature range

-20 ... +200 °C

-20 ... +200 °C

-25 ... +200 °C

Temperature stability

±0.01 °C

Setting the resolution of the temperature display

0.01 °C

Ambient temperature

+5.0 ... +40.0 °C

Data based on voltage version:

115V/60Hz (Nema N5-15 Plug)

Heating capacity

1 kW

Cooling capacity (Medium: Ethanol)

200°C = 0.2 kW / 20°C = 0.2 kW / 10°C = 0.17 kW / 0°C = 0.15 / -10°C = 0.1 / -20°C = 0.02 kW

200°C = 0.3 kW / 20°C = 0.3 kW / 10°C = 0.3 kW / 0°C = 0.27 / -10°C = 0.19 / -20°C = 0.08 kW

Pump capacity flow rate

8 ... 27 l/min

Pump capacity flow pressure

1.5 ... 10.2 psi

Viscosity max.

50 cST

Refrigerant stage 1

R134a

Global Warming Potential for R134a

1430

Filling volume

70 g

100 g

Carbon dioxide equivalent

0.1 t

0.143 t

Bath tank

Stainless steel

Bath cover

integrated

Usable bath opening (W x L / D)

5.1 x 5.9 / 5.9 in.

Cooling of compressor

1-stage Air

Classification according to DIN12876-1

Classification III (FL)

Pump function

Pressure Pump

Pump type

Immersion Pump

External pt100 sensor connection

integrated

Integrated programmer

8x60 steps

Temperature control

PID2

Absolute temperature calibration

3 Point Calibration

Temperature displayTemperature display

3.5" TFT Display

Temperature settingTemperature setting

Shaft Encoder

Electronic Timer hr:min

99 ... 59

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41729013186

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KaDi
Bozeman, US
★★★★★ 4
Cute and comfortable!
Size: 6.5, Color: Chestnut
These are cute and surprisingly comfortable! My arches feel supported and the soles don’t feel as block-like as other platform style sandals! Things to note: The footbed liner is not made of suede and is a little slippery. It’s like a neoprene liner which was unexpected for an Ugg shoe. Also, I only intend to wear these sandals as slides (a la Birkenstocks) so the “adjustable” Velcro strap over the top part of the foot seems useless. It doesn’t snug the top down at all, functionally speaking it is only to wear around the back of the ankle. Maybe this matters to someone thinking they could tighten the top down a bit. The ankle strap is comfortable but could be a bit longer. Overall they are a cute option to the platform Birks that are very uncomfortable imo. Love the options to order half sizes. I’m usually a 6 in Ugg boots but ordered my regular shoe size 6.5 and they fit well. My heel would be at the very end of my sandal if I sized down. True to size. Keeping and will order in another color!
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Reviewed in the United States on May 28, 2025
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Jess
Alexandria, US
★★★★★ 5
Comfy
The most comfortable Sandals I own!
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Reviewed in the United States on April 7, 2026
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Avid Reader
Charlottesville, US
★★★★★ 5
More comfortable than flats!
Size: 8.5, Color: Bay Fog
I love these sandals! They run true to size, and they’re sooo comfortable. I was worried about getting fakes, but these were the real deal. The color is lovely (light purple). The foot bed can get dirty, but I find them to wash up nicely (by hand, not machine). I have purchased two more colors since! So much better than flats!
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Reviewed in the United States on November 9, 2025
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Siyu
Pawtucket, US
★★★★★ 5
Comfy dual-mode sandals
Cute, quite comfy to walk in and love the support of the heel strap! It is not as comfy if using in slipper mode because the straps don’t keep your foot tight enough. I am usually a 8.5 but it runs slightly small so I switched up to a 9.
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Reviewed in the United States on June 25, 2025
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Anapaula
Carnegie, US
★★★★★ 5
Love them
Size: 5.5, Color: Red Pepper
I have gotten so many compliments on these shoes! They’re true to size and comfortable. Because of the material feet might sweat easier if hot but they dry quick. Quality is great and the color looks good, it’s more of a orange/red color. I got a 5.5 size
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Reviewed in the United States on May 21, 2026

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