Uhde high pressure reactors can be found everywhere in the world. Since 1955, we have delivered more reactors to the petrochemical industry than any other company. The first reactor had an inner diameter of 24 mm and was designed for a pressure of 1,600 bar. Nowadays, Uhde builds reactors with inner diameters of 70 - 90 mm, suitable for pressures of up to 3,600 bar. Likewise, the production capacities have increased tremendously from 10,000 t/a to over 300,000 t/a.
Our advantages
During nearly 50 years of experience in the construction of LDPE reactors, we have learned to build them in accordance with all process licences, e.g. Basell, DSM/ Stamicarbon and ExxonMobil. More than this, our know-how and engineering help our process-licensing partners to further develop their technology and specification package. In the same manner, all major engineering companies which are active in this industry have worked with us successfully in building new LDPE plants.
The engineering companies appreciate our wide range of engineering services and support which we provide together with the equipment and which helps them to reduce their engineering hours to accomplish the job. Precise project management, engineering and fabrication skill from continuous practice in the business help us to be able to offer our equipment at competitive prices.
High pressure components
Our scope of supplies includes jacketed tubes and bends. The bends can be produced by cold forming for large radii or by hot forging for compact short radius bends. All the necessary flange connections, blocks and fittings are supplied by us. We also manufacture the sealings, thermocouples, injection spargers and other high pressure accessories. All the high pressure equipment is subjected to the autofrettage treatment and to rigorous quality control.
Steel structure
Uhde also designs and builds the steel structures necessary to support the reactor and the intercooler. The design department uses advanced tools in order to verify all the static and dynamic loads on the steel structure. For fast and efficient installation on site, Uhde designs equipment in integrated modules, combining the steel structure and the process equipment.


