AAF-Serie, Ashing and Burn off Furnaces
These models are heated by wire heating elements protected from chemical and mechanical damage by a high quality, hard wearing alumina based liner. The graded winding and powerful double sided heating elements compensate for the heat loss, as well as preheating the air prior to it entering the chamber. Temperature uniformity within the chamber is therefore excellent, despite the higher airflow through the chamber. The AAF 11/3 and AAF 11/7 have a large floor area which allows many samples to be accommodated and because of the low chamber height the airflow is held close over the samples to promote burning. High airflow of between 4-5 changes per minute is ensured by use of an air inlet and a tall chimney, however it is not too high to disturb the samples in the crucibles, or chill them, as the incoming air is preheated. The AAF range is ideal for ashing materials such as food, plastics, coal & other hydrocarbons. The AAF 11/7 furnace complies with the following industry standards BS 1016 part 4, ISO 344 and 1171, ASTM D2361, D2795 and D3174. The AAF 11/18 has high grade heating wire mounted behind silicon carbide tiles to protect against carbon or corrosive atmospheres. A two tier shelf is supplied as standard, which doubles the furnace capacity. An optional temperature programer available.
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CTF-Serie, large tube furnaces
These models utilise a resistance wire heating element, which is wound around the outside of a ceramic worktube making it an integral part of the heating element. If the tube is required to contain an atmosphere or is likely to be contaminated by spillage, an additional work tube should be used. The thermocouple is located in a protected position between the outside of the work tube and the heating element, allowing the full work tube diameter to be used and protects the thermocouple from mechanical damage.vertically with a separate control box. Applications in materials research include testing of novel materials under strict temp and varying atmosphere conditions. Applications in the electronics industry include testing electronic components and semiconductor materials under inert atmospheres or vacuum. Applications in instrumentation include testing of temperature sensors such as thermocouples and PT100’s, which may require enhanced thermal uniformity
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CWF-Serie, chamber furnaces for common laboratory applications
These furnaces integrate the best of traditional and modern materials to produce an outstanding combination of performance and reliability. The unique concept for this furnace is the heating module - with one situated on either side of the chamber. Each heating module consists of a high quality alumina based hard wearing element carrier, housing a free radiating coiled wire element. With the use of graded winding, the elements compensate for heat loss and optimise temperature uniformity within the chamber. The furnaces reach working temperature quickly and efficiently. Hard wearing refractories around the chamber entrance and in the chamber base provide excellent resistance to everyday wear & tear, whilst secondary low thermal mass insulation ensures maximum thermal efficiency. Service is aided by the removable instrument panel & easy access to the element modules & thermocouple through the rear of the case. Chamber sizes are 5, 13 and 23 litres with maximum temperatures of 1100°C, 1200°C and 1300°C
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ELF-Serie, economical chamber furnaces
The ELF range is bench mounted with a maximum temperature of 1100°C and is available with chamber capacities of 6, 14 and 23 litres. These furnaces are suitable for light duty general laboratory work. The heating chamber is insulated with vacuum-formed low thermal mass insulation, which offers exceptional performance in achieving maximum temperature quickly and efficiently. A temperature of 1000°C is achieved in as little as 35 minutes. Semi-embedded free radiating wire wound elements are located on the two side walls - elements are not positioned in the hearth. A hard ceramic hearth is fitted as standard, which offers additional protection from spillage. The drop down door can be used as a shelf when loading and unloading samples. The door insulation also acts as a trap for radiated heat, thus improving the chamber uniformity, whilst the air gap behind the plug minimises the external door temperature. A ceramic chimney is fitted for the ventilation of the chamber, but if toxic / corrosive fumes are generated then a model from our dedicated ashing range should be recommended. The digital Eurotherm PID controller is fitted as standard and has an adjustable single ramp to set point, as well as an in-built timer which allows for a delayed start or a fixed process duration. An optional temp. programer is available.
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MS-Serie, multipurpose laboratory furnaces
The MSF serie multi purpose furnaces are bench mounted with a maximum temperature of 1200˚C. It is available with chamber size of of 3.6 litre or 6.2 litre. MRC’s multipurpose furnaces with stainless-steel cabinet, are suitable for every laboratory application, including burnout preheating, tempering casting and metallurgical process. For dental laboratory.
MRC burnout furnaces are designed for maximum efficiency and provide a generous internal capacity despite modest overall size. Although the volume of the muffle is relatively small . This furnace enables to cast in one burnout.
The drop down door can be used as a shelf when loading and unloading samples. A chimney is fitted for ventilation of the chamber. Double security: hardware and software overtemperature protection to prevent exceeding maximum allowable temperature. Advanced PID temperature programmer suite variety of applications. The advanced setpoint programming temperature controller contains 15 separate programmes each with 8 stages. Optional gas inlet available.
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MTF-Serie, small tube furnaces
These models utilise a resistance wire heating element, which is wound around the outside of a ceramic worktube making it an integral part of the heating element. If the tube is required to contain an atmosphere or is likely to be contaminated by spillage, an additional work tube should be used. The thermocouple is located in a protected position between the outside of the work tube and the heating element, allowing the full work tube diameter to be used and protects the thermocouple from mechanical damage. Optional temp. programer available. Maximum operating temperatures of 900°C, 1000°C and 1200°C. Tube diameters range from 15 - 38mm . Heated lengths from 130 - 400mm. These models utilise a resistance wire heating element wound around a ceramic worktube, forming an integral part of the heating element to ensure excellent thermal uniformity. Rapid heat up to operating temperature. Can be adapted
to allow a non-oxidising atmosphere or vacuum, by fitting an additional worktube and end seals. The thermocouple is located in a protected position between the outside of the worktube & heating element, allowing the full worktube diameter to be used. Normally built on the horizontal base pictured left, this furnace range can optionally be mounted vertically with a separate control box. Applications in materials research include testing of novel materials under strict temperature and varying atmosphere conditions.
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RHF-Serie, chamber furnaces with silicon carbide heating elements
This comprehensive range is available at 1400, 1500 and 1600°C with four popular capacities of 2.9, 7.8,15 and 35 litres. Powerful silicon carbide heating elements provide fast heat up rates, typically 40 minutes to 1400°C depending on the model. Silicon carbide heating elements are ideally suited to the rigorous firing cycles often required in laboratory furnaces. These elements withstand the stresses of intermittent operation and give long life at elevated temperatures. Furnaces using these elements are designed with excess power to ensure that ageing is easily corrected and heating performance is maintained. The average life of the elements may be several years, depending on operating temperatures and conditions. Two types of insulation are used: Hard wearing refractory brick around the doorway and in the floor to give resistance to abrasion and spillage. Lightweight ceramic fibre is used in all other areas to ensure energy efficiency and fast heating/cooling. An optional temperature programer available.
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