Moldtech has installed and commissioned a self-reacting system with hydraulic mould sides for the manufacture of prestressed bridge girders in Bucharest, Romania.

The self-reacting hydraulic system includes:

  • Universal casting bed, 90 meters long, 1 meter wide with self-reacting prestressing system with a capacity of 1400 tons. Includes active and passive stressing heads with relaxation cylinders on the active stressing head. The opening/closing movement of the mould sides is hydraulic.
  • Side moulds for the bridge girders casting of 90 meter long. Maximum length of one bridge girder – 40 meters. Height adjustment from 1.4 m to 2 m. Pneumatic vibration system. Heating system with a boiler with a thermal power of 800 KW, service pressure 4 Bar.
  • Tensioning and detensioning equipment features tensioning jack units, jack support, tensioning and detensioning hydraulic power units.
  • “Giraffe” concrete transport and distribution equipment with a 3 m3 capacity.

The self-reacting prestressing system gives the client the possibility to assemble and disassemble the factory and relocate it in any remote area, drastically reducing the transportation costs of precast products.


Central hidráulica
Cabezal activo
Laterales del molde
Cabezales de pretensado
Cabezales de pretensado
Sistema autoportante
Sistema hidráulico
Laterales hidráulicas del molde
Molde autoportante