Machining and turning

BA Usinage machines, turns and delivers all kinds of components from bars and billets of metal or composite materials. The company, based in Haute-Savoie, works closely with several companies including Décolletage des Grands Clos, Titane Production and EUROPROD Services, which enables it to meet all the demands for both large and small manufacturing runs.

Our strengths

Our partners

  • Speed of execution
  • Always close at hand
  • Compliance with deadlines
  • Innovation and anticipation
  • User friendly

Company History

1936 : Creation of the company by Blanche DUMONT

1950 : Blanche’s children take over the management of the company

1990 : Jean-Claude DUMONT acquires the company

2000 : ISO 9002 certification, development of NC plant list

2004 : The new ISO 9001 certification is obtained

2010 : Acquisition of BA Usinage by Décolletage des Grands Clos, merger with the JM Méca company (centre machining)

2012 : ISO 9001 : 2008 certification

2014 : EN 9100 certification for aeronautic and space industry

Décolletage des Grands Clos
Titane Production

Partner specialised in titanium machining, prized for its strength, light weight, biocompatibility, ...


The CTDEC (Technical Centre for the Turning Industry) provides us with all its skills and resources. It has become our company’s preferred partner for technological development.

Mont-Blanc Industries

Competitiveness cluster for SME, specialist in industrial activities, ...


Resource Centre for Mechatronics, Industrial Management and Innovation Management.