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Machines & equipment for sale

Airflow Group 3.0m x 3.2m x 1.9m Chamber Electric Oven

Used / Second Hand

Refurbished Price [?]
£ Login or Register for price
Sold As Seen Price [?]
£ Login or Register for price
Availability:
Arriving in stock soon, available for purchase now.
Condition
From a working environment, Good Condition, Current Model
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Stock No
OD2553
Manufacturer
Airflow Group
Model
3 x 3.2 x 1.9 Electric 250°C
Year of Manufacture
TBC
Serial
TBC
Condition
From a working environment, Good Condition, Current Model
Internal Size (WxDxH mm) [?]
3.0 x 3.2 x 1.9M
Max Temp
250°C
Other Info
Air Circulated Double Door Forced Air Ex
Location
Arriving in our warehouse soon
Weight (kgs)
TBC
External Dimensions (WxDxH mm) [?]
3.8 x 4.2 x 2.8 + Control panel
Delivery
Your delivery options

Description

A hot air recirculation type of oven, airflow box ovens are heated by a interior fan for a  fan assisted convection process. Constantly recycling the air around the ovens interior to maintain superb temperature consistency.

Intended for all industrial drying, stoving, curing and heating applications from 30˚ to 250˚C. In normal use, airflow ovens operate at considerably reduced power to simply maintain its internal temperature.

Airflow oven systems offer simple and very accurate digital temperature control (removed due the the information stored in them). The ovens are fuel efficient and responsive due largely to the utilisation of the current heater technology as well as the oven‘s fully integrated, insulated construction.

Airflow Ovens incorporate electronic over temperature protection, a powered fume exhaust system, and an internal safety handle to prevent operator entrapment.

Applications

  • Paint stoving
  • Epoxy/Polyester powder curing
  • Lacquer drying
  • Hydrosetting
  • Moisture removal
  • Plastic curing
  • Rubber softening
  • Metal annealing
  • Spring stress relieving

Good Distribution of Heat is Essential for Successful Process

To ensure good performance, all Airflow ovens incorporate medium pressure multi-vane centrifugal fans complete with scroll casings to provide a very positive and well controlled air movement. This is usually at least four complete air recycles per minute. Large duct work ensures that the high air volume will not disturb the product.

Fully Pinned Construction

All of the oven panel work is pinned together during final assembly. For this reason the oven can, if required, be delivered ‘flat packed’ to site to make delivery and positioning on site particularly simple. Furthermore, future modifications to the oven’s size or site removals are also much simplified.

Fully Insulated Heated Box and Recirculation Fans

The oven’s heat exchanger enclosure incorporates integrated, internal, plug type centrifugal air recirculation fans with external motors. With this design none of the hot fan components are in any way exposed to colder air. Not only does this design offer a clean and smooth appearance to the oven, but also heat losses from the fans are virtually eliminated. Furthermore, a fully insulated heater box prevents radiated heat from being projected into the oven in any uncontrolled manner.

Door Safety System

Airflow box ovens incorporate an internal safety door handle to prevent operator entrapment.

Cool Exterior Surfaces

Care has been taken in construction of Airflow ovens to minimise heat transfer through the walls and doors.

Electronic Over Temperature Protection

As a totally independent module to the master oven control system, Airflow ovens also incorporate a thermal sensor mounted within the air heater box, this sensor is connected to an independent electronic temperature controller mounted inside the control panel. In the unlikely event that the heater box temperature should exceed the ovens design parameters, the heaters are shut down and the oven automatically shuts down.

All Insulated Galvanised Steel Construction

To ensure a very long service life the oven panel work is made up from high grade galvanised steel with high density mineral wool slab insulation filling. This is of 100mm thickness

Fume Exhaust System

Airflow Ovens incorporate a powerful and positive, fan assisted, fume exhaust duct system. The exhaust system never relies merely on convection evaporation and it can be adjusted to suit different applications.

Features

  • Digital temperature controller 
  • Accurate and stable heat control
  • All pinned construction – easily modified or moved
  • Galvanised steel construction
  • High density mineral wool insulation
  • Fully insulated heater chambers and fans
  • Internal door release
  • Safe and adaptable control systems
  • Electronic over temperature protection device
  • External mounted fabricated steel doors
  • Full compliance with safety and environmental legislature

Height including ducting - 2800mm

Overall width including control panel - 4300mm

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

How Does the Chamber Heat Up?

Depending on the type of oven/furnace, the most common heating options are electric and gas. Both commonly used across industries, electric ovens/furnaces feature a heating element that produces heat while gas-fired ovens/furnaces include a burner system that burns propane or natural gas.

The heat created from both these methods circulated around the oven interior for a more consistent and precise temperature inside the oven chamber. 

Purpose of Airflow in Ovens

A popular feature among our range of industrial and laboratory ovens, air circulation is essential for many heat treatments and processes, but it isn’t necessary for all. Seen most typically in high precision ovens for improved temperature accuracy, installing an air circulation system in an oven will distribute the heated air around the oven for a tighter temperature uniformity inside the chamber.

pdf icon Print / Download Airflow Group 3.0m x 3.2m x 1.9m Chamber Electric Oven Datasheet

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