PolyScience 45 L Refrigerated & Heated Circulating Baths
SKU: 91431229152

PolyScience 45 L Refrigerated & Heated Circulating Baths

Sale price$5400.00 Regular price$6000.00
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Description

PolyScience 45 L Refrigerated & Heated Circulating BathsOverview Capable of reaching temperatures as low as 25C and as high as 135C, PolyScience 45 Liter Refrigerated Heated Circulating Baths provide dependable temperature control for a wide variety of laboratory cooling applications. Features Working temperatures as low as 25C and as high as +135C Temperature stabilities to 0. 005C (varies by controller) Controller options with large, intuitive displays and multiple communication options Large bath

Overview

Capable of reaching temperatures as low as -25°C and as high as 135°C, PolyScience 45 Liter Refrigerated/Heated Circulating Baths provide dependable temperature control for a wide variety of laboratory cooling applications.

Features

  • Working temperatures as low as -25°C and as high as +135°C
  • Temperature stabilities to ±0.005°C (varies by controller)
  • Controller options with large, intuitive displays and multiple communication options
  • Large bath openings and easy to clean surfaces
  • Swivel 180™ Rotating Controllers
  • LidDock™ self-stowing reservoir cover
  • DuraTop™ insulating, chemical-resistant top deck
  • WhisperCool™ Environmental Control System
  • Cool Command™ modulated refrigeration system
  • Reservoir drain
  • Washable air filter

PolyScience Refrigerated/Heated Circulators come with the following accessories:

  • Reservoir cover
  • Bypass tubing
  • Male inlet and outlet adapters for 3/8, 1/4, and 3/16" (.95, .63, and .47 cm) tubing, 1/4" to M16 adapters also included on 50Hz units
  • 6' (1.83m) standard grounded electrical cord with country-specific plug

Controllers

Specifications and features for the PolyScience Refrigerated & Heated Circulating Baths vary based on the controller chosen.  Some key specifications are in the table below, and additional features for each controller are listed below the table. 

- Advanced Programmable (AP) Advanced Digital (AD)
Maximum Temperature 135°C 135°C
Temperature Stability ±0.005°C ±0.01°C
Pump Type Pressure/Suction, Variable-Speed Pressure/Suction, Variable-Speed
Programmability OpenMode - unlimited programs and steps N/A
Connectivity USB-A & B, Ethernet, RS-232/RS-485, Remote On/Off, External Temperature Probe USB-A & B, Ethernet, RS-232/RS-485, External Temperature Probe

*DIN 12876-1 Class III devices are rated for use with flammable liquids.  DIN 12876-1 Class I devices may be used with non-flammable liquids only.

Safety Rating* DIN 12876-1 Class III DIN 12876-1 Class III DIN 12876-1 Class III DIN 12876-1 Class III DIN 12876-1 Class I DIN 12876-1 Class I

Advanced Programmable Features

  • Working Temperature: From -25° up to +135°C
  • Temperature Stability: ±0.005°C
  • Safety Rating: DIN 12876-1 Class III (for use with flammable liquids)
  • External Temperature Control Capability: Yes
  • Pump: Variable-speed
  • External Circulation: Open- or closed-loop
  • OpenMode time time/temperature programming (no restrictions on number of programs or steps)
  • Intuitive 4.3” (10.9 cm) SmartTouch display
  • 11 languages: French, German, Spanish, Chinese, Portuguese, Russian, Hindi, Arabic, Italian, Korean, English
  • Variable speed pump with open- and closed-loop external circulation capability
  • Swivel 180™ Rotating Controller
  • On-board connectivity: USB-A & B, Ethernet, RS-232/RS-485, remote on/off and external temperature probe
  • Event scheduling (time & date) with real-time clock
  • Review temperature trends for up to 10 days
  • Multiple selectable “home” screens
  • On-screen help
  • Automatic and/or user-adjustable performance optimization
  • 10-point calibration capability
  • Includes Enhanced Performance Hardware & Software Package (Pt100 temperature probe, USB flash drive for data logging, stainless steel fittings and tubing adapters, PolyScience LabVIEW Virtual Instrument, iPhone application download)

      Advanced Digital Features

      • Working Temperature: From -25° up to +135°C
      • Temperature Stability: ±0.01°C
      • Safety Rating: DIN 12876-1 Class III (for use with flammable liquids)
      • External Temperature Control Capability: Yes
      • Pump: Variable-speed
      • External Circulation: Open- or closed-loop
      • Intuitive 3.75” (9.5 cm) display with touch-pad control
      • 4 languages: French, German, Spanish, English
      • Swivel 180™ Rotating Controller
      • On-board connectivity: USB-A & B, Ethernet, RS-232/RS-485, and external temperature probe
      • On-screen prompts
      • Automatic performance optimization and specific heat tuning
      • Single-point calibration capability

          Please note: PolyScience Refrigerated & Heated Circulating Baths are manufactured at the time the order is placed and have a 2-3 week lead time.

          Key Attributes

          Type

          Stirred / Circulating Baths

          Incubation

          Yes

          Refrigeration

          Yes

          Temp Range (°C)

          Ambient -25 to 135

          Capacity (L)

          45

          Circulation Internal & External

          Brand

          PolyScience

          MaxFlow Rate (l/min)

          20.1, 11

          Temp Stability (°C)

          ±0.005, ±0.01

          Timer

          Yes

          Alarms

          Yes

          Digital or Mechanical

          Digital

          Data connection

          Yes

          Tank Material

          Stainless Steel

          Sample Agitation

          No

          Media Racks Available

          No

          Warranty (years)

          2

          Weight (lb)

          180

          Width (in)

          35.8

          Depth (in)

          22.4

          Height (in)

          42.1

          Manufacturer specifications 
          Model AD45R-20 AP45R-20
          Description -25, 45 L Ref. Circulator -25, 45 L Ref. Circulator
          Controller Type Advanced Digital Advanced Programmable
          Display 3.75" Touch-Pad LCD 4.3" SmartTouch Touchscreen
          Connectivity Ethernet, USB A & B, RS232/addressable RS485, External Temperature Probe Ethernet, USB A & B, RS232/addressable RS485, Remote On/Off, External Temperature Probe
          Languages Supported 4: French, German, Spanish, English 11: French, German, Spanish, Chinese, Portuguese, Russian, Hindi, Arabic, Italian, Korean, English
          Time/Temperature Programs & Steps N/A Open Mode: No restriction on the number of programs or steps
          Swivel 180 Rotating Controller Yes Yes
          Working Temperature Range °C -25° to 135° -25° to 135°
          Temperature Stability °C ±0.01° ±0.005°
          Fluid Optimization/Specific Heat Tuning Automatic and/or user-adjustable Automatic and/or user-adjustable
          Temperature Calibration Capability 1-point 10-point
          Working Access (L x W x D) (cm) 54.9 x 39.8 x 14 cm 54.9 x 39.8 x 14 cm
          Pump Type Pressure/Suction Pressure/Suction
          External Temperature Control Capability Yes Yes
          Flammability Class (DIN 12876-1) III (FL) III (FL)

          Working Temperature Range °F

          -13° to 275° -13° to 275°
          Working Temperature Range °C -25° to 135° -25° to 135°
          Nominal Cooling Capacity @ +20C (W) 1400 1400
          Reservoir Capacity (gallons) 11.88 11.88
          Reservoir Capacity (liters) 45 45
          Reservoir/Tank Material Stainless Steel Stainless Steel
          Reservoir Cover Included Included
          DuraTop Yes Yes
          Cleanable Air Filter Yes Yes
          Working Access (L x W x D) (inches) 21.6 x 15.68 x 5.5 in 21.6 x 15.68 x 5.5 in
          Working Access (L x W x D) (cm) 54.9 x 39.8 x 14 cm 54.9 x 39.8 x 14 cm
          Temperature Stability °F ±0.02° ±0.02°
          Temperature Stability °C ±0.01° ±0.005°
          Display 3.75" Touch-Pad LCD 4.3" SmartTouch Touchscreen
          Display Resolution (Set) 0.01 0.01
          Display Resolution (Read) 0.01 0.001
          Pump Type Pressure/Suction Pressure/Suction
          Pump Speed Variable Variable
          Process Connections 1/4" (F) NPT 1/4" (F) NPT
          External Temperature Control Capability Yes Yes
          Flammability Class (DIN 12876-1) III (FL) III (FL)
          Over-Temperature Protection / Failsafe Heater Control Yes Yes
          Low Liquid Level Protection Yes Yes
          WhisperCool Environmental Control Technology Yes Yes
          Cool Command Refrigeration Technology Yes Yes
          Reservoir Drain Yes Yes
          Included Software PolyTemp Viewer, USB driver PolyTemp Viewer, TDMS file viewer, USB driver, Time/Temperature Program Generator, PolyTemp Remote iPhone application
          Maximum Ambient Temperature °F 95° 95°
          Maximum Ambient Temperature °C 35° 35°
          Overall Dimensions (L x W x H) (inches) 35.8 x 22.4 x 42.1 in 35.8 x 22.4 x 42.1 in
          Overall Dimensions (L x W x H) (cm) 90.9 x 56.8 x 107 cm 90.9 x 56.8 x 107 cm
          Refrigerant R134a R134a
          Environmental Compliance RoHS, WEEE RoHS, WEEE
          Shipping Weight (pounds) 180 180
          Shipping Weight (kilograms) 81.5 81.5
          Part Number AD45R-20-A13D AP45R-20-A13D
          Maximum Pressure (psi) 4.3 4.3
          Maximum Pressure (bar) 0.3 0.3
          Maximum Pressure Flow Rate (gpm) 5.3 5.3
          Maximum Pressure Flow Rate (l/min) 20.1 20.1
          Maximum Suction Flow Rate (gpm) 3.9 3.9
          Maximum Suction Flow Rate (l/min) 14.7 14.7
          Cooling Capacity @ -20°C (W) 250 250
          Cooling Capacity @ 0°C (W) 800 800
          Cooling Capacity @ +20°C (W) 1400 1400
          Cooling Capacity @ +100°C (W) 1400 1400
          Included Hardware Nylon hose adapters for 3/8", 1/4", and 3/16" Nylon hose adapters for 3/8", 1/4", and 3/16"
          Heater Wattage 2200 2200
          Electrical Requirements (VAC/Hz/Ph/A) 208-230/60/1/13 208-230/60/1/13
          Regulatory Approvals ETL ETL



           

          FAQ

          What materials of the circulating bath come into contact with the bath liquid?

          The wetted parts of the instrument are all 300 series stainless steel.

           

          I would like to perform a heating / cooling program where the temperature ramps from one set point to another over time. Are the PolyScience 45 L Refrigerated & Heated Circulating Baths capable of this?

          That depends on the controller used. Only the Advanced Programmable and Performance Programmable controllers can be programmed to perform ramps.

           

          It is possible to have the circulation on without any temperature control being on?

          No. If the circulation is on, then a temperature setting must be selected.

          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: 91431229152

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          jmb02129
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          ★★★★★ 5
          Fantastic Boots!
          Size: 8.5, Color: Redwood/Gum 10
          Completely satisfied with these boots. True to size, well made, comfortable from the get-go; not break in needed. Waterproof- really. The Red Suede has withstood a nasty winter season & still looks great. Good traction. I like the ankle height which looks good with long, mid length pants & leggings. I love the easy slip on/off aspect..made getting ready for dog walking easy. I 100%recommend!
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          Reviewed in the United States on April 11, 2026
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          Paige
          West Palm Beach, US
          ★★★★★ 5
          Definitely worth the price
          Size: 6.5, Color: Black/Black
          Absolutely love these boots! I originally bought them to wear in NYC in December & they did not disappoint. They were comfortable, cute, durable and worked well in the slush/snow. The traction on the bottom is also nice! They kept me warm with wool socks. I wear them almost daily now. Perfect for everyday. easy to wear with variety of outfits. Good every day shoe.
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          Reviewed in the United States on January 3, 2026
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          Kimberly
          Carnegie, US
          ★★★★★ 5
          Snagged a deal
          Size: 7, Color: Redwood/Gum 10
          I waited and waited to get these boots! I knew I was chancing it, but they went on sale, and I snagged them! I am a size 7, and they fit nicely with socks. a little loose, barefooted, but what psycho wears boots without socks? They are comfortable and really well-made.
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          Reviewed in the United States on April 8, 2026
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          ashlynnk
          Alexandria, US
          ★★★★★ 4
          Cute, comfortable waterproof boots (a little snug to put on)
          Size: 7, Color: Velvet Tan/Gum 2
          These are really cute Chelsea-style boots and feel very comfortable once they’re on. The waterproof material is great for wet weather and the sole feels sturdy with good traction. They look stylish enough to wear casually but still feel practical for rainy days. The only downside is they can be a little difficult to put on at first because the opening is somewhat snug, but once they’re on they fit well and feel supportive. Overall they’re a great waterproof boot and I’ve enjoyed wearing them.
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          Reviewed in the United States on March 17, 2026
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          Abby B
          Port Orchard, US
          ★★★★★ 5
          Surprisingly great for my wide feet and high instep!
          Size: 10.5, Color: Velvet Tan/Gum 2
          So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
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          Reviewed in the United States on March 7, 2026

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