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Overview

AMS 2750F Industrial Ovens


Please contact our sales department with your requirement for an obligation free quotation. Many AMS 2750F Industrial Ovens have been supplied to the aerospace and automotive sectors. we are well versed in the required standards for our world class customer base. Our design engineers will project manage your installation and also provide specialist consultation for composite curing applications.

Airflow’s AMS 2750 F composite curing ovens are available for highly critical applications within automotive, aerospace and high technology based industries. Airflow Products has a number of AMS ovens in use across the world, as far as the USA and Thailand. We can recommend and supply an oven to suit any of your temperature uniformity requirements. Our ovens are built to your specifications.

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Why choose a AMS Industrial Oven

Furnace Class 1-6
Instrument Type A-F
Temperatures up to 425°C
Increased thermal efficiency, reducing running costs
Twin leaf or vertical rising door for minimum footprint
Optional stainless steel interior for durability

What Is AMS?


AMS 2750 is now on its latest revision, revision "F" and this document relates to the industrial processing of high quality materials used in the Aerospace industry. AMS 2750F specifically covers the pyrometric requirements for thermal processing equipment used for heat treatment. It covers temperature sensors, instrumentation, system accuracy tests and temperature uniformity surveys. All these features are necessary to ensure that parts or raw materials are heat treated in accordance with the applicable specifications being followed by the component manufacturer.

Here at Airflow, we have a wealth of experience in the design of industrial ovens to be used in the Aerospace and composite industries.

Our ovens are recognised to be the oven of choice for clients wanting to have the best both in terms of design and build quality along with the ability to meet the temperature uniformity requirements of AMS2750F.

The design of an Airflow AMS type industrial oven includes for special air delivery systems which provide exceptionally good temperature uniformity throughout the working envelope and at the temperatures specified by the client, along with bespoke control and data acquisition systems, the package as a whole is an industry leading design!

Industries Using AMS2750


AMS or Aerospace Materials Specifications are a number of detailed specifications which cover materials, material tolerances and quality control procedures and processes predominantly within the Aerospace and defence industries.

AMS2750F is predominantly designed for and used within the aerospace industries but the same standards and processing techniques can be used within any industry which requires excellent control of the thermal processing of raw materials and manufactured components. Within the Aerospace industry the standard extends through the thermal processing of all critical materials and can include for:

1. Heat treatment and processing of raw materials

2. Heat treatment and processing of finished components to specified design requirements

Drying of paint materials and other coatings Composite curing of materials to form components with excellent structural properties along with high levels of dimensional and aesthetic excellence.

Any other thermal process which requires a close level of control to ensure that today’s modern materials offer many years of trouble free service.Many other industries such as automotive, motor racing, sports science, rail, manufacturing, civil engineering can and do, benefit from excellent thermal processing systems. Airflow are able to offer solutions to any problem where crossover exists between the superior needs of the aerospace industry and other up and coming industries wanting to employ similar techniques.

AMS2750F Specifications


There are two AMS2750F Specification types relating to Airflow and its offering for Industrial Oven application; AMS2750F furnace classes and AMS2750F instrumentation type.

AMS2750F is somewhat a complex document and for many clients who are maybe new to the industry, some of the details and procedures may seem to be a little onerous when applied to everyday processes. The document contains a number of headings, most of which deal with the technical requirements of compliance such as:

There are also a small number of headings such as quality assurance provisions and the responsibility for inspections which are in place to support the system as a whole and ensure that the requirements of AMS2750F are being met.

Two of the main features within AMS2750F are the specifications relating to the instrumentation type and the furnace class of thermal processing equipment and Airflow have both the skills and experience to supply the equipment required to fulfil these specifications.

As can be seen below (left), when defining furnace class the definition is determined by the temperature uniformity required within the working zone.
Temperature sensors
Instrumentation
Thermal processing equipment
System accuracy tests (SATs)
Temperature uniformity surveys (TUS)
Laboratory furnaces and equipment Records and record keeping

AMS2750F Certification & Temperature Uniformity


To ensure that compliance with AMS2750F is maintained, regular on site tests need to be carried out by a company such as Airflow who have the skills and experience to carefully assess the needs of each individual client and then respond with a tailored package to suit those needs.

Intervals for system accuracy tests, temperature uniformity surveys for controlling, monitoring and recording instruments are based on the combination of furnace class and instrumentation type. For example, it should be made clear that there is a distinct difference between the system accuracy test (SAT) and the temperature uniformity survey (TUS) and AMS2750F lays out quite clearly the defined intervals for each to be carried out. Both the SAT and TUS also depend on whether the system is to process raw materials or parts/components.

Simply described, a SAT is a test of the control, monitoring and recording systems which is usually an onsite comparison of the instrument/lead wire/ sensor readings or values, with the readings or values of a test instrument/lead wire/sensor to determine if the measured temperature deviations are within applicable requirements, and this is performed to assure the accuracy of the furnace/oven control and recorder system.

The TUS is a test or series of tests where field test instrumentation and sensors are used to measure the temperature variation within the qualified working zone, prior to and after thermal stabilisation. E.g. for an oven to comply with furnace class 1 and instrument type A used for processing parts/components, the SAT interval would be biweekly, however at the other end of the scale, for an oven with furnace class 6 and instrument type F, again used for processing parts/components the SAT interval would be semi-annually.

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