As usual in such tasks, the work consists not only in obtaining the proper surfaces, but also in obtaining the appropriate tolerance of the position of two surfaces relative to each other. Therefore, the most important are the measurements carried out properly, which result not only in the current geomentry but also in the value of corrections taken into account during milling.

Repair of the flange frame after surfacing in the gas tank wagon

Regeneration consists in machining out the material at the point of contact with the nut in the plate on both sides of the hole for the actuator. Material losses are replaced with inserts. 4 pcs. new, turned inserts will be mounted in the grooves and screwed with screws. In future renovations, it is enough to replace the inserts.

Multi-bucket excavators working in open-pit mines are one of the largest mobile devices in the world. A characteristic element is a bucket wheel, often with a diameter exceeding 20 m.  And it was the bearing seat of the bucket wheel that was the subject of our concern.  It is clear that the time and cost of dismantling the bucket wheel would be gigantic, which is why the only solution became mobile machining. On the surface, this is a standard work, one obstacle in this case was a spigot with a diameter of Ø630, impossible to disassemble, and located in the center of the Ø1100 socket (an element with holes around the perimeter). The size of this journal also significantly limited the working space of the machine tool. Modification of the machine tool and the use of additional fasteners were required.

We processed over 200 flanges on cooling system pipelines with diameters Dn270 – Dn610 near Frankfurt am Man, at the construction site of the new Google server station. The aim was to obtain the correct roughness and flatness parameters of the sealing surface.

The unusual task of reaming the existing, twisted central hole in the shaft of the generator rotor was carried out in accordance with the customer’s requirements. The task was to ream the holes Ø81 to Ø90, with the maintenance of a new hole in the shaft axis. Also a challenge was the required roughness Ra = 0.8 µm. And above all, the depth: more than 2000 mm! The task was carried out using a modified BB6000 machine tool, equipped with an appropriate mounting system and a spindle bearing system in the hole according to our concept. Metrological supervision – the reliable Laser Tracker – ensured ongoing alignment corrections and continuous […]

The Hydro tab has appeared in the main menu of the website, where you can find information about our activities in the field of hydropower.

Once again, all WWtech employees take part in first aid courses organized by WENA Konsulting. The course program, in addition to standards (BLS – Basic Life Support), covers the following topics: • Wound management, • Cardiopulmonary resuscitation (CPR), • Using the Automated External Defibrillator (AED). Automated external defibrillator (AED) – a highly specialized, reliable, computerized device that, by voice and visual commands, guides both people with and without medical training through a safe defibrillation procedure in cardiac arrest. Cardiopulmonary resuscitation in combination with defibrillation within 3-5 minutes of loss of consciousness can allow effective resuscitation in 49-75% of cases, and every minute of defibrillation delay reduces the likelihood of survival […]

We are pleased to announce that the project described in the article:https://wwtech.com.pl/en/2020/10/23/modernization-of-the-turbine-casing-screw-connection/has been successfully completed! In addition to measurements, the analysis of the casing shape geometry and machining, WWtech also produced all fasteners: studs, bolts and cap nuts, including the design of new bolts replacing the existing studs.