Construction of standard laboratory furnaces is only part of the picture for Carbolite. We are regularly asked to design furnaces either to meet the specific requirements of customer’s applications, or to enable the use of standard test methods such as those for iron ore reduction or coal and coke testing.
When customers must perform operations within a standards compliant regime such as AMS 2750E or NADCAP for heat treatment applications, then Carbolite has the experience and skills to modify standard designs or engineer bespoke solutions in order to achieve the appropriate levels of compliance.
Perhaps most frequent of all is the situation where customers see a standard model but simply require it a little larger or smaller or to reach a higher temperature.
If you cannot see precisely what you need in our standard range simply get in touch.
This thermal cycling rig comprises four 1200°C GHA 12/450 furnaces, each with a heated length of 450mm installed into and integrated frame
Each furnace has an independent 8 segment programmable controller and each has over-temperature protection and RS232 communications. The operator manually transfers the sample between furnaces.
One of five identical thermal cycling furnaces for accelerated aging tests on sensors that are used in aircraft engines.
In use test samples experience temperatures up to 1100°C. These 1200°C 3 zone furnaces have actuators that can insert up to 15 sensors each around 2mm in diameter into the furnace for around 30 minutes then return them to ambient temperature for up to 4000 cycles.
The design is derived from that of the standard TZF-12-38-400.
This 900°C crucible furnace was produced for a university department researching in advanced material properties.
The furnace is designed to be able to heat 10 to 15kg of aluminium in an 8 litre crucible and is equipped with an 8 segment programmable controller and over‑temperature protection.
A hydraulic tilting system raises and lowers the furnace, allowing the molten aluminium to be poured out.
This split spherical tilting furnace with a maximum operating temperature of 1100°C has been designed to heat a 250mm diameter reaction flask.
The furnace body can be tilted through a 45 degree angle and locked into position. The furnace body hinges open to insert or remove the spherical reaction flask. A safety switch turns off the power to the elements when the furnace is split.
The separate control module houses a 301 set-point controller and an additional 2132 over-temperature protection control.
This 1100°C tilting rotating tube furnace is equipped to process precious metal based catalysts under an inert atmosphere.
Furnace control and data-logging is via a PLC (process logic control) touchscreen.
Sample feeding, processing and collection are all achieved under and inert atmosphere. The split tube design simplifies exchanging the work-tubes.
This 1100°C rotating tilting split tube furnace is equipped with a dual feed mechanism which incorporates both screw feed and a vibratory feeder.
The processed material is collected under an inert atmosphere. The furnace is used for the manufacture of hydroxyapatite based synthetic bone graft materials. These allografts provide many advantages over bone graft materials of natural origin.
The split tube design simplifies exchanging the work-tubes.
One of an identical pair of air recirculation furnaces supplied for a ‘centre of excellence’manufacturing process development site. The units are designed for use in Nadcap AMS 2750E heat treatment applications and operate in the range 300°C to 1100°C
Each has a vertically opening door and load handling accessories. Air recirculation fans provide rapid and uniform heating through the convection phase of the heating cycle
This large capacity 1150°C furnace was designed to sinter 100kg of graphite matrix containing ceramic powder inclusions, used in the manufacture of abrasive discs.
The large Inconel retort holds a nitrogen/hydrogen reducing gas mixture and uniformity is assured through the use of a 3 zone control system and radiation shields.
This particular model features an opening roof to increase cooling for sintering ceramic abrasive discs under an inert atmosphere. Other versions of this design have been built to incorporate exhaust afterburners for use in ceramic binder burn-off.
A custom built top hat furnace system that is used for the surface treatment or jet turbine blades under an argon atmosphere.
Advanced single crystal nickel based superalloy turbine blades used in the construction of the latest generation of high efficiency high pressure gas turbine jet engines are loaded into jigs within the furnace retorts and then heat treated under an inert gas atmosphere.
This rotary hearth furnace is used in the production of wedding rings. Gold 'compacts' are sintered so as to improve the workability of the precious metal.
Powdered gold is packed into a die and pressed to form a ring with a rectangular cross section. These are known as compacts.
These are heated under a 95:5 nitrogen:hydrogen atmosphere to around 750°C to 800°C for up to 24 hours. Uniformity is provided as a result of 3 control zones being employed.
With a maximum temperature of 1300°C and an operating temperature of 1200°C this tube furnace was developed for research into CVP chemical vapour deposition under hydrogen and corrosive atmospheres. The gas management system in the furnace base controls the supply of carbon dioxide, carbon monoxide, nitrogen, hydrogen and sulphur dioxide using mass flow controllers. An integral hood is designed to provide ventilation into an extraction system.
The furnace’s 500mm heated length has 3 control zones so as to increase uniformity and a cascade control system via a Eurotherm 3508P1. Gas and temperature data is displayed on a Siemens TP 1778 colour HMI touch screen panel which includes smartserver software for internet explorer access.
The furnace is on rails and so is able to travel along the 150mm diameter quartz glass tube applying the 500mm heated length to locations.
This brazing furnace with a maximum operating temperature of 1150°C is designed to allow an operator to manually push product into the furnace which can be purged with either 100% nitrogen or 100% hydrogen.
The entrance and exit to the furnace have a gas curtain burner that activates when the door is opened and sophisticated gas control system with a series of safety interlocks
Construction is based upon a tube furnace design in which the product is heated in the ‘hot’ zone and after a determined time it is pushed into a water cooled, cooling zone.
All Carbolite chamber furnaces are fitted with an interlock switch which turns off the elements when the door is opened. However when working at high temperatures with ceramic materials opening the door can damage samples that are sensitive the thermal shock.
This 1500°C RHF 15/35 furnace has been customised to include a door interlock which prevents the up and away door from being lifted until the programmer releases it.
With a maximum operating temperature of 1700°C this dual bogie raised hearth furnace is designed for sintering boron nitride SAPI & ESAPI (enhanced small arms protective insert) plates.
The dual hearth system allows one bogie to be loaded and unloaded whilst a second bogie hearth rolls into place and is raised into position. Faster processing without and load turn around can be achieved with consequential energy savings.
Raised hearth furnaces are also frequently described as elevator hearth furnaces. With multiple bogie hearths they are an ideal solution for high volume industrial processing at high temperature.