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Where the scope is very non-standard, where the complex geometry of the object limits the freedom of machining using standard machines, there is a need to check the possibility of installing our equipment and then the possibility of machining. Due to this, we support us by 3D CAD technology, knowledge and software enabling the reproduction of an object and a machine in space, which allows, for example, the selection of a suitable machine, analysis of assembly options, control of possible collisions and even the design of a new machine matching the structure being machined. The latter case is not uncommon in the iron and steel industry and in hydro-power business. However, to be able to perform such simulations, we must start by making or selecting previously made 3D models. We currently have a faithful 3D representation of all our machines. The geometry of the object is a bigger problem – here a suitable 3D model is often used or the classic documentation is provided by the customer. […]
Two hydraulic presses, one with horizontal axis and the other vertical. In both cases, we have milled the surfaces of the press tables. These two examples show that mobile machines can work in any position: horizontally, vertically or inverted. In the first case, the Laser Tracker ™ was also used to determine the machining geometry. In the second case, this was not necessary, as the task was a facing of the surface due to high post-operational wear
The tiny Angaback hydroelectric power plant, belonging to the Scandinavian giant Statkraft and the Polish large hydropower plant PGE Dychów. Very similar work involving the machining of a groove for sealing of vanes. However, the main difference is the diameter of the flow path of the water turbine. For this reason, we used different machines to achieve the same goal in both cases. Angaback Dychów Output [MW] 7 90 Commisioning 1952 1936 Damming [m] 7 18 Type Flow Pumped storage Number and type of turbines 2 x Kaplan 3 x Kaplan Machining diameter [mm] 4000 5000 Machine tool FF8200 CM6200 Type of machining Turning Circumferential milling
It is worth to know that WWtech also produces piston rings. Only at first glance it is easy. However, thanks to our experienced staff and appropriate equipment, we can now offer large diameter piston rings. Application: all types of servomotors and hydraulic cylinders as well as combustion engines.
This time, the only underground hydroelectric power plant in Poland, operated by PGE. The scope of work typical for our company: machining flanges from large diameters.
It happens that the thread is damaged by disassembling the blocked bolt. In most cases, it is relatively easy to recover the full functionality of the connection. The approach to repair depends on many factors: location, degree of damage, size, weldability of the material, etc. Apart from the cost and time of reconstruction, all these factors must be taken into account when choosing the method of repair. We have recently been asked to reproduce the functionality of a threaded hole in the steam turbine body. In order to avoid mistakes in the future, the customer decided to keep the current thread size – hence the sleeve was selected as the […]
The shipbuilding industry in Poland does not look as bad as it is commonly thought. Polish private shipyards, in particular, build more and more complex ships, adding more and more added value, competing as well as cooperating with global giants such as Scandinavian ones. We have recently participated, of course adequately to the nature of our activity, in the construction of a crucial piece of specialist equipment for the ship for laying undersea pipelines. This is a giant spool, used for transporting and laying a prefabricated pipeline (or, for example, an energy cable or optical fiber), which is simply wound on it. The spool is several meters in diameter and, […]
How important are the foundations, you do not have to convince anyone. Especially if they are foundations on which complicated devices and machines will be placed. It is important that the pressure resulting from the weight of the seated structure is evenly distributed – to achieve this, bearing surfaces – foundation slabs – must meet structural requirements such as the mutual position of individual panels – determined by the permissible deviation of the relative height (max 1 mm) and maintaining the level and flatness of each foundation slab (max. ± 0.05 mm / m). The following are examples of foundation slabs (milling of large planes) and completed plate with measurements […]
In March 2017, ANDRITZ HYDRO begins supplying electromechanical equipment for a new hydro plant in the heart of Graz, the capital of the Austrian province of Styria. The start-up of the power plant is planned for the first half of 2019. Before the construction is completed, it is necessary to install the power plant equipment: turbines, generators, flaps, various types of drives and control systems. And here is the place for our services. Of course, as in a hydroelectric power plant, the main task is to process large-size flanges. It is a very avant-garde design, which can be seen in the following visualizations: More about the plant: The current state […]