Polysius
Extends the life of your
high-pressure grinding rolls.
Key figures strip
- 2 programmes
- Roll inspection and roll wear-protection
- 4 influences
- What expert profile care positively affects
- Worldwide
- The service is available everywhere
- On site
- Support with specially developed equipment
- Training
- Of your staff rounds off the range of services
Why Profile Care — the Four Influences
Both sources state that expert maintenance of the roll bodies positively influences four things. The page gives each one an explanation, because the third is the reason a high-pressure grinding roll works at all.
| 1 — Service life | How long the roll stays in the machine before the wear surface has to be renewed |
| 2 — Feed material pull-in capability | Whether the roll grips the feed and draws it into the gap. A worn or smoothed profile stops pulling material in, and throughput falls |
| 3 — Formation of autogenous wear protection | The material bed that packs into the profile and protects the roll surface with the ground material itself. Lose the profile and you lose the protective layer |
| 4 — Smooth running of the entire polycom® | An uneven or concave roll does not only wear itself, it affects how the whole machine runs |
The Four Interventions
Our specially developed equipment for profile care and refurbishment of the rolls — whether for build-up welding or the elimination of concavity — allows high-quality execution of the work.
| Mechanical re-profiling | Restoring the profile geometry that the feed material needs in order to be pulled in |
| Semiautomatic intermediate profiling | The further-developed oscillating system for profile care |
| Edge zone optimisation | Optimisation of the edge zones by means of grinding, and elimination of concavity across the roll face |
| Wear surface repair | Removal and rewelding of the hard weld layer with profiling, plus repair of local damage |
Semiautomatic Intermediate Profiling
With our further-developed oscillating system for profile care — so-called semiautomatic intermediate profiling — we achieve even higher-quality profile welding than was the case in the past for our compound-cast rolls. This procedure considerably increases the service life of the rolls.
Higher-quality profile welding than was previously achievable on compound-cast rolls
Considerably increased service life of the rolls as a result
Intermediate — carried out between major refurbishments, not instead of them
Specially developed equipment, which is what makes the quality repeatable rather than dependent on the individual welder
How It Runs – Measure, Decide, Act, Record
Wear measurement and checking of the wear profile of the roll bodies. Linked on the page to PlantScan 3D, which scans HPGR roll bodies completely and rapidly for exactly this purpose
A condition report with recommendations for optimisation of the wear protection, and assistance in determining suitable measures for the care of your rolls
On-site support with the appropriate intervention: re-profiling, intermediate profiling, edge zone grinding, or removal and rewelding
Documentation and tracking, so the next measurement is a comparison rather than a fresh start — and your own staff are trained to take readings between visits
Your Service Advantages
The flyer lists six; the website lists five and they are not the same five.
| Flyer | Website |
| Extended service life for your polycom® rolls | Extended service life |
| Inspection by thyssenkrupp experts | — not listed |
| Detailed condition recording, with analysis and recommendations | Detailed condition recording, with analysis and recommendations |
| Early detection of damage | Early detection of damage |
| Avoidance of loss of production | — not listed |
| Optimisation of material throughput | Optimisation of material throughput |
| — stated in the body text instead | Available worldwide |
Only in this way can high availability and economical continuous operation be ensured.