DIEPA 1873 Founding of the company by Moritz Dietz, whose son AUGUST RICHARD DIETZ later on transformed the handy craft into an industrial plant and gave it its name. Manufactured goods: sisal ropes 1920 Beginning of production of steel wire ropes 1936 Invention of the full steel wire rope in double parallel lay (parallelism of outer and inner strands + parallelism between neighbouring outer wires of the outer strands and outer wires of the inner strands) = Dietz – Patent 1943 Development and manufacturing of rotation resistant ropes 1951 Development and manufacturing of ropes with plastic insert 1970 Successfull introduction of rotation resistant ropes in Lang lay for use on mobile as will as on tower cranes 1973 First production of a special rope’s core, which is the base for the very successful series of DIEPA D 1315 ropes 1980 Improvement of the structural design of non-rotation resistant ropes. E.g. DIEPA P 825, DIEPA 371, etc 2002 Improvement of the structural design of rotation resistant ropes by means of a special manufacturing process at present The ownership of the company is 100% in the private hands of the Dietz′s family The manufacturing and further development of the DIEPA Special Wire Ropes encompass: factory grounds of approx. 600 000 square foot (approx. 60 000 m2) 15 manufacturing halls with approx. 430 000 square foot (approx. 43 000 m2) approx. 390 employees
