TG Gradient Tube Furnace Range
These compact split tube furnaces are specifically designed to provide a temperature gradient along the length of the heated zones. They use free radiating wire elements embedded within the insulation of the furnace body. The benefit of this design is its flexibility; with the use of tube adapters the same furnace can be used with a variety of tube diameters.
The furnace body is split into two halves and hinged at the rear; pneumatic dampening struts at either end provide a smooth opening action. The ability to open the furnace makes it easier for operators to exchange work tubes, or insert vessels, such as reactors, with end flanges that would make them difficult to insert into a non-split furnace.
The TG2 tube furnace includes a 25 mm long unheated zone barrier between the two 200 mm heated zones while the TG3 includes two 75 mm long unheated zone barriers between the three 150 mm heated zones. Each heated zone has its own temperature controller and thermocouple.
| Max temp 1200 °C | Furnace Ø 60, 125 mm |
| Heated length(s) 425, 600 mm | Number of heated zones 2 zones or 3 zones |
| Orientation All models available orientated either horizontally or vertically | |
Carbolite Gero's new tube furnace range is at the pinnacle of furnace design. The culmination of over 80 years of experience in thermal engineering; combining the latest technological developments with solid construction, high-quality components and a sleek, modern aesthetic.
visualisation of a TF type three zone tube furnace
TG gradient furnaces are equipped with RS485 communications and a Carbolite Gero EPC3016P1 programmable temperature controller with 24 segments for each heated zone as standard.
Carbolite Gero's new tube furnaces are very energy-efficient. Their high-quality thermal insulation is designed for longevity, low case temperature and most of all outstandingly low energy consumption.
Using a Carbolite Gero tube furnace reduces your energy cost as well as the carbon footprint.
Energy consumption for exemplary Carbolite Gero TS1 12/60/600 model (red) and equivalent competitor product (yellow); measured at each temperature after 2 hours soak.
Wide choice of tube diameters, lengths & materials
Prevent heat loss & improve temperature uniformity
TG gradient tube furnaces are supplied mounted on top of the control box. The furnace body can easily be detached and separated for remote operation.
This configuration includes a 2 metre cable (furnaces with 125 mm Ø incl. plug and socket) between the furnace body and control box. This flexible arrangement allows for easy conversion to optional mounting arrangements e.g. attaching to a vertical stand, a mounting bracket or inside a fume cupboard.
Configuration for heated lengths up to 600 mm
Easy conversion to optional mounting arrangements
4 m long extension results in a total of 6 m between furnace body and control box (125 mm Ø models include plug and socket)
Vertical mounting stand for the furnace body
Used to mount the furnace body to customer equipment
Carbolite Gero tube furnaces may be equipped with many different options to accommodate modified atmosphere and/or vacuum applications.
A sample could be moved between two temperature zones to achieve a desired heat cycle without waiting for a single zone furnace to heat or cool.
Temperature Gradient, Horizontal TG2 12/125/425.
80 mm OD worktube.
Setpoints: zone 1: off, zone 2: 1100 °C
Temperature Gradient, Horizontal TG2 12/125/425.
80 mm OD worktube.
Setpoints: zone 1: 1000 °C, zone 2: 1100 °C
Temperature Gradient, Horizontal TG3 12/60/600.
60 mm OD worktube.
Setpoints: zone 1: 1100 °C, zone 2: 950 °C, zone 3: 800 °C
Temperature Gradient, Horizontal TG3 12/60/600.
60 mm OD worktube.
Setpoints: zone 1: 1100 °C, zone 2: off, zone 3: 400 °C
Carbolite Gero tube furnaces are designed with user safety in mind.
The robust construction and high-quality thermal insulation ensure that external case temperatures are much lower than other models.
Not only does this help mitigate the risk of injury to the operator, the reduction in the amount of heat escaping the furnace ensures a comfortable working environment, and also means that less energy is wasted during use. When the heat is on, Carbolite Gero can help you keep a cool head!
| TG3 12/60/600 | TG2 12/125/425 | |
|---|---|---|
| Max temp (°C) | 1200 | 1200 |
| Number of heated zones | 3 | 2 |
| Heat-up time (mins) | - | 134 |
| Furnace Ø (mm) | 60 | 125 |
| Heated lengths (mm) | 600 | 425 |
| Recommended tube length for use in air (mm) | 880 | 750 |
| Recommended tube length for use with modified atmosphere (mm) | 1050 | 1000 |
|
Dimensions: External H x W x D (mm) |
575 x 795 x 480 | 665 x 665 x 575 |
| Control Box H x W x D (mm) | 230 x 785 x 480 | 230 x 655 x 480 |
| Max power (W) | 2000 | 1860 |
| Weight (kg) | 56 | 71 |
Content may be subject to modifications or corrections
A gradient tube furnace is a split tube furnace with multiple heated zones, fitted with zone barriers. The zone barriers are pieces of insulation that fit between each heating element module, and help reduce the amount of heat transfer between heated zones.
Each heated zone is controlled by its own independent temperature controller, so it is possible to set different temperatures in each zone. The zone barriers reduce the amount of heat transfer between zones, increasing overall control and enabling the operator to create a temperature gradient across the heated length e.g., zone 1: 500°C, zone 2: 450°C, zone 3: 400°C.
There are many applications that require a gradient tube furnace, such as chemical vapour deposition (CVD), in which a substance is vaporised in the hottest zone, and transported along a work tube via a carrier gas, then condensed upon a substrate in the coolest zone. Gradient tube furnaces are ideal for this process, as each end of the furnace can operate at a different temperature, with a gradient of temperature between them.
