It happens! Despite all preventive maintenance pains; tyre and rollers are working face to face in difficult conditions. Misalignments, low lubrication efficiency and wrong material choice lets the tyre and roller wear out. The best way of sollution is machining and grinding the surface to return it to its original surface state.
It depends on the depth of wear to determine machining or grinding the surface. Normally we suggest machining first if the depth is more than 3 mm. We grind the surface after machining.
It all depends on the depth of wear and the ovality of the tyre. Our team works on site 24 hours a day by shifts. In normal cases it takes 5-8 days for a whole tyre resurfacing.
We have sevaral equipments to resurface tyres and rollers together or two tyres together.
We have an experienced logistic ability to reach any plant on earth in days time. When you need urgent service please mail us and please send our invitation letters to let us get our visas as soon as possible. We know what a kiln fail means!
Our customers do not have to slow down the kiln for our service. You can continue producing in full operation. We can machine and grind the surface at up to 3,5 rpm.
Thanks to our patented portable lathe tool, we can machine and grind any surface on the tyre, front or sides. We machine the side surface with the angles described in the production drawings to get the best tyre-thrust roller contact possible. We calculate linear velocity for a longer surface life. We install the portable lathe machine once to machine both front and side surfaces together if necessary.
Yes, we can machine the thrust roller on site while the kiln is running at up to 3,0 rpm. It is important to machine both thrust roller and tyre’s side surfaces with the same surface quality and contact angle for better relation. On the other hand this service will shorten the maintenance period of your team by cancelling the thrust roller dismantle efforts.
Yes we have special tools for also grinding the mill tyres on site. We configure the equipment for tyre resurfacing by changing the oil several times and put some tools to clean the surface during our service.
We have special measurement devices to measure the diameter and local changes on tyre. We measure the tyre before we start and after our analysis, we continue our resurfacing works. We take measurement at all steps of our work and present a final report after our service.
It all depends the shape of the tyre and roller contacts. For example; if the roller is concave and the tyre is convex and if we machine the roller nothing changes about alignment because we do not machine or grind more than necessary on contact surfaces. We measure both tyres and rollers and present a surface report during our work to let you determine the alignment needs.
Yes we give extra supervision services for our suggestions for skewing or aligning the rollers.
We create a simple, clean and well detailed report after our measurements and analysis which includes our suggestions and how to do articles. We present this report to your engineers and agree on what to do next.
Yes we scan the whole pier coordinate points and analyse it in 3D softwares in all aspects. We double check every measurements in different points like roller shaft centres or roller surfaces.
We measure the tyre, roler and gears’ slope during their turn. That means we can undertand the real slope without any additional noise on data. This information leads us determine the shims necessity and we connect these datas to pier coordinate informations.
In hot kiln alignment services we give a pack-service including all necessary measurements, analysis and suggestions about your rotary kiln. We measure ovality, crank, shell deformation, eccentricity informations about shell and connect all information in a sophisticated wireframe data to understand the kiln’s behaviour.