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Product Features
  • Max temp: 1200 °C
  • Furnace Ø: 60, 125 mm
  • Heated lengths: 425, 600 mm
  • Number of heated zones: 2 zones or 3 zones
  • Orientation: All models available orientated either horizontally or vertically
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
    with our best shipping prices along with your quote.
  • Please see our delivery page for full information

The Carbolite Gero TG Gradient split tube furnace range is 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 furnace has two independent heated zones and TG3 has three independent heated zones. The TG2 includes a 25 mm long unheated zone barrier between the two heated zones and the TG3 has two 75 mm long unheated zone barriers separating the three heated zones. Each heated zone has its own temperature controller and thermocouple.

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.

High-Quality Heating Elements

  • Excellent temperature uniformity
  • Fast heat-up and cool-down rates
  • Unsurpassed temperature uniformity along the entire heated length


High-Quality Thermal Insulation

  • Low energy consumption
  • Low external case temperature
  • Designed for longevity


TG gradient furnaces are equipped with ethernet communications and a Carbolite Gero EPC3016P1 programmable temperature controller with 24 segments for each heated zone as standard. Over-temperature protection (recommended to protect valuable contents and for unattended operation)

Model Max temp
Number of heated zones Heat-up time
Furnace Ø
Heated lengths
Recommended tube length for use in air / modified atmosphere
H x W x D [mm]
Control Box
H x W x D [mm]
Max power
TG3 12/60/600 1200 3 - 60 600 880 / 1050 560 x 795 x 480 220 x 785 x 480 2000 56
TG2 12/125/425 1200 2 134 125 425 750 / 1000 645 x 665 x 575 220 x 655 x 480 1860 71
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