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Our Team

Simon Day - Managing Director

Simon has an extensive background, of over 30 years, in the heat treatment industry holding directorships in Production, Quality as well as Sales and Marketing. He has been Managing Director since December 1999; building and leading a team from scratch, with a mission to establish ADI as the material of choice for high strength, low weight engineering applications. Simon is a past Chairman and current Senior Vice-Chairman of the UK Contract Heat Treatment Association.

Arron Rimmer - Business Development Director

Arron received his BSc (Hons) in Metallurgy in 1991 from the University of Manchester and continued in the Metallurgy Department receving his MSc in 1992 and PhD in 1994. His MSc and PhD related to the Austempering of Ductile and Compacted irons. He joined ADI Treatments in 1997 and became a Director of the company in 1999. 

John Southall - Plant Manager

John joined the company as a furnace operator in 2009 and made a rise through the ranks to Senior Supervisor, a position he held from 2013 to 2018. The company recognised the need for a continous improvement role and John was successful at interview to take on this new challenge in mid 2018. The scope of the role has recently developed to include managing both compliance issues and the production functions on site. John is a certified Lean SIx Sigma Green Belt and is working towards his Black Belt accreditation.

Gordon Walker - Quality Manager

Gordon recieved his B.Eng in Metallurgy and Materials Science from the University of Liverpool and went straight into a quality role at another heat treatment company. Gordon moved to ADI Treatments as Quality Manager in 2000. Gordon is the Management Representative for ISO 9001.

Angela Welton - Accounts Manager

After working in manufacturing roles for a number of years Angela decided she would like a new challenge and retrained in accounting by taking her AAT and CIMA qualifications. Angela is a member of CIMA and joined ADI Treatments in 2001.

Simon Gardner - Engineering Supervisor

Simon joined ADI Treatments in 2008 as a Maintenance Engineer. When the previous Chief Engineer retired in 2018 Simon was appointed as Engineering Supervisor to manage the day to day running of the engineering functions on site.

Sue Hodgkins - Disptach Clerk

Sue initially joined ADI as a general operative to help with the make up of furnace loads for treatment in 2003. As the company grew it became clear that a dedicated dispatch clerk was required and Sue was successful at interview to take on this important role, one she has been performing since 2007.