Highest quality materials


The pentruder equipment is built from the best steels we have found on the market, and we have chosen the best possible physical properties for every type of component. We also use the best possible aerospace quality aluminium alloys we can find.
Aluminium components

All parts you see on the machine made from aluminium are machined from solid blocks (billets), not from castings. It is quite important to understand that this type of alloy has the same strength as a good quality steel alloy. The Ultimate Tensile Strength (UTS) of the alloy we use is as high as 590 N/mm2. A casting typically shows between 180 – 250 N/mm2.

As a good comparison, an aluminium profile extrusion made from the best alloy which is possible to press in Sweden’s (and one of Europe’s) biggest presses has around 250 - 280 N/mm2 UTS.

By using this high quality material for our Pentruder equipment we can be sure that the quality and integrity of every structural part is secured and that there is no hidden porosity in the part. Because of the high strength of the material every structural part can be as light and possible. If we would use a casting the parts would have to be much thicker and heavier to withstand the high forces. 
Steel components

For steel parts transmitting power or holding the machine together, we only use high quality steel alloys, perfectly suitable for the job they have to do. Here we have been able to use our wide experience from race car transmissions, were we are recognised as a leading company as well.

What we have learnt in the process of designing and building winning race and rally car transmissions, has gone straight in to the wall saws. Without this experience from designing and machining highly stressed gears, shafts etc. we could not have designed the Pentruder equipment to be what it is.

In a competition gearbox or transmission virtually all components are very carefully stressed and analysed by the designers. Great efforts go into reducing weight and inertia of all rotating components as well as slimming down housings while at the same time trying to keep or even improve structural stiffness and integrity.

We machine all parts in house in our ultra modern production equipment.

Read more about the production. >>