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We slow you down


 positivo1 1962  Industrias Zelu was founded with the objective of designing and manufacturing electromagnetic retarders.

 Imagen relacionada 1972  1,000 units are manufactured and sold.

 positivo1 1988  Current Directors (Javier and Jose Antonio Alvarez) join the company. 

  1994  4,500 units manufactured and sold/ Sales volume of 6 million Euros.

 positivo1 2000  Cofresa is acquired.

 positivo1 2001  Certification ISO9000:1994.

 positivo1 2002  Entrance into North American market. OEM contacts established.

 positivo1 2003  Introduction into market of a new electronic control system known as EPM/ECM.

 positivo1 2004  Establishment of Klam America in Denver CO (vehicle mounting, inventory, sales, support and distributor.

 positivo1 2006  Second Generation of Electronic controls known as ECS.

 Imagen relacionada 2009  New factory distribution with the latest in machinery technology.

 positivo1 2014  Certification TS 16949.

 Imagen relacionada 2016  Begin IATF 16949:2016 Certification.

 positivo1 2017  Begin of expansion of production facilities and offices.

 positivo1 2018  Certification IATF 16949:2016.