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About Us

We're utilising the benefits of vacuum furnace technology.

MSL Heat Treatment was formed from the acquisition of CNC Vacuum Processes, whose vacuum heat treatment expertise stretches back over 40 years. Operating from our plant just outside Gatwick, with excellent transport links we are ideally placed to serve the local and national demand for vacuum heat treatment and brazing processes.

Operating to ISO9001:2015 quality standards, our processes are highly controlled and traceable to assure repeatability and compliance to our customer and industry specifications.

guy working at msl
MuMetal brazed metal

How we work

Let's talk about our process, clean & simple

Heat treatment is a vital process for many materials, adding value to components through precise processes to optimise their properties. As such great care should be taken at every stage of the process.


To ensure clean results and extend the lifetime of our equipment, all parts processed are thoroughly cleaned before loading into the furnace. Our customers can either supply parts pre-cleaned or we can offer this service using our in-house degreasing facilities.


Parts are then run to customer, industry, or in-house specifications. Our furnaces use the latest control and data acquisition technology complaint with AMS 2750 Pyrometry standards.


Vacuum treatment in particular is a very delicate process – parts are often finished or near finished machined, so opportunities to re-run or re-machine are limited. We take great care in handling parts through every stage of treatment to ensure post heat treatment operations are kept to a minimum.


Parts are carefully loaded onto graphite or ceramic fixtures before loading into the furnace. Our furnaces are rigorously maintained through a variety of yearly, quarterly, monthly, weekly, and daily checks to ensure they are operating efficiently and preventative maintenance is carried out.


Once work is processed furnace charts are checked to ensure processes ran to spec, and items are all visually inspected to ensure no vacuum leaks have discoloured or oxidised the surface. Additional inspection carried out in house includes hardness testing and leak testing. Further inspection methods such chemical analysis, metallography, dye penetrant inspection etc... can be arranged through our approved sub-contractors.

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Get in touch today to see how we can help you. +44 (0) 1293 822 660
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