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Machines & equipment for sale

Thermo Fisher 250°C Air Circulation Heratherm Oven

Used / Second Hand

Refurbished Price [?]
£ Login or Register for price
Available for immediate collection
Excellent Condition, Current Model, Seen powered at RSW
Stock No
Thermo Fisher
Year of Manufacture
Excellent Condition, Current Model, Seen powered at RSW
Internal Size (WxDxH mm) [?]
543 x 464 x 708mm
Max Temp
Other Info
Exceptional Uniformity 0.3°C
Our Central Warehouse, Aldridge, UK
Weight (kgs)
External Dimensions (WxDxH mm) [?]
738 x 640 x 920mm
Your delivery options


Thermo Scientific™ Heratherm™ general protocol ovens are built with exceptional temperature uniformity with fan air circulation, easy settings and low energy consumption. Featuring a west 4600 controller for up to 8 programmes with 16 segments and a Eurotherm Chissell 301D chart recorder complete this package.


  • Fan air circulation
  • 7 shelves with glass tops
  • Stainless steel interior
  • Capacity - 180L
  • Temperature - 50°C to 250°C
  • Type - mechanical convection oven
  • Temperature Stability - ±0.3°C
  • Timer - on/off
  • Internal dimensions (WxDxH) - 464mm x 543mm x 708mm
  • External dimensions (WxDxH) - 640mm x 738mm x 920mm
  • Voltage - 230V
  • Wattage - 3060 w
  • Amperage - 13.3 A
  • Frequency - 50/60 Hz

Controller Type: Microprocessor control with vacuum fluorescent display.

  • 8 programs with 16 segments with free-form programming
  • Programming in rate or time mode
  • 'Auto Hold' facility
  • Remote run/hold/abort & program selection
  • 4 event outputs
  • Real-time clock
  • Power failure recovery
  • Program end/run relay as standard
  • Self-tuning algorithms

Eurotherm Chissell 301D  chart recorder.


Common Heat Treatments That Use Industrial Ovens & Furnaces

Heat treatment is a controlled process of heating and cooling materials in order to improve its properties, performance, and strength typically made up of three main steps. Firstly heating the metal to a specific temperature, soaking or maintaining the specific temperature for a certain amount of time, and cooling to a suitable rate following prescribed methods.

There are seven main techniques used for the heat treatment of materials, and all affect material in different way. These techniques are:

  1. Normalising
  2. Annealing
  3. Tempering
  4. Hardening
  5. Ageing
  6. Stress Relieving
  7. Carburisation

Control Features of Your Industrial Oven/Furnace

Many of today's oven/furnace controllers feature multiple screens and options for the operator to adjust to their process, so understanding each of these controls could make the difference in in perfecting your heat process.

The most important features frequently seen on a control panel include:

  • On/Off Microprocessor-Based Controller – An on & off heating system to maintain the set temperature.
  • PID (Proportional Integral Derivative) Controller – An advanced heat output system to maintain a tight temperature uniformity.
  • Digital Process Timer – A timer to set the time length of the process.
  • Data Logger – Record the history of previous processes.
  • Single Setpoint Controllers – Control the rate of temperature increase & decrease inside the oven chamber.

For more information on each of these features and more, check out our article Essential Features of Industrial Ovens.

pdf icon Print / Download Thermo Fisher 250°C Air Circulation Heratherm Oven Datasheet

Additional files


Photographs taken prior refurbishment. Our refurbishment service is not available on all machines.