ROITECH linings: a combination of different types in one mill
The service life and performance of the mill are largely determined by the quality of the lining selection. One of the most effective approaches used by ROITECH is to use different types of linings in the same mill, taking into account the operating conditions.
The optimal solution for every mill zone
The load inside the mill is not evenly distributed: for example, carbide metal elements are required in areas of maximum wear, while classic steel alloys or rubber are suitable in less stressed areas.
ROITECH offers a unique solution – the combination of different types of linings in one mill. This technology is practically not available on the market: different production technologies are required for implementation, which are usually concentrated in separate sites.
ROITECH’s manufacturing facilities and engineering expertise allow us to effectively meet this challenge: the ability to work with different technologies ensures the development, production and integration of different types of linings within a single project.
Individual configuration from ROITECH
ROITECH specialists accompany projects at all stages and select the lining configuration for a specific mill – taking into account load distribution, wear patterns and technological tasks.
The project implementation includes:
Combining different types of lining in one project allows:
- Unify and/or multiply the service life of the lining in different mill zones
- Reduce cost by using more cost-effective solutions where performance is not impacted.
- maintain the lining profile and the stability of the grinding process.
In addition, in some cases, this approach reduces the weight of the lining. This reduces the load on the drive and makes it possible to increase the mill load without increasing energy consumption.
As a result, the grinding efficiency, the proportion of the finished class and the overall capacity of the mill are increased.
ROITECH CHRON:® The Solution for Large Diameter Mills
As part of the combined solutions, ROITECH’s own developments are used, one of them is the ROITECH CHRON® series. This is a lightweight steel-based rubber-metal lining for large-diameter mills (usually from 7 meters and above).
The design is based on wear-resistant rubber and metal inserts made of high-strength alloys. The combination provides a balance of strength and load damping.
CHRON® design features:
- the number of elements and fasteners is 2-3 times less than when using a classic metal lining;
- fastening is carried out on the outside of the mill, so installation does not require being inside it;
- reduced weight and load on the drive;
- reduced noise level;
- The profile of the lifters is maintained throughout the entire service life of the lining.
The use of ROITECH CHRON® allows you to increase the service life of the lining by up to 50%*, reduce operating costs by up to 15%*, as well as reduce relining time and improve work safety.
* These indicators are indicative and are calculated individually depending on the technological parameters of the equipment.
Practical value
The combination of liner types allows the configuration to be adapted to the real operating conditions of different areas of the mill body.
ROITECH’s integrated approach — the combination of materials, technologies and design solutions within one project — allows you to influence not only the life of the lining, but also the productivity, energy consumption and economics of the entire processing stage.
ROITECH mill lining is a high-tech product for mining companies. In-house design and a full cycle of preparation of design documentation allow us to create products for specific operating conditions.
ROITECH offers a full range of wear protection solutions for grinding and beneficiation equipment – for mills of all types and sizes. Modern materials are used in production, including metal, rubber and combined linings, to optimize performance and reduce operating costs.
The ROITECH portfolio includes:
- lining for AG, SAG, ball, rod, ore and multi-chamber mills;
- metal, rubber, rubber-metal and magnetic linings;
- Lining for vertical mills, loading and discharging trunnions, modular butars.
ROITECH specialists also carry out reengineering and modernization, developing individual solutions to increase the life of equipment and improve the efficiency of the entire grinding chain.
