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Written by / Agency / Source: ABB Robotics / ABB Ltd

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New ABB Drive Control Feature Gets the Most Out of Your High Pressure Grinding Rollers - RollXtend™ offers mine operators site specific, accurate torque and speed control for high-pressure grinding rollers (HPGR), providing outstanding operational flexibility that improves roller life and productivity - ABB.com
New ABB Drive Control Feature Gets the Most Out of Your High Pressure Grinding Rollers

 

NewswireToday - /newswire/ - Zurich, Switzerland, 2015/12/14 - RollXtend™ offers mine operators site specific, accurate torque and speed control for high-pressure grinding rollers (HPGR), providing outstanding operational flexibility that improves roller life and productivity - ABB.com. NYSE: ABB

   
 
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ABB, the leading power and automation technology group, has launched RollXtend™, a new state-of-the-art drive system feature to improve HPGR performance and roller life in mining. This advanced control system is based on real-time load sharing between the rollers, which gives significant advantages in terms of throughput optimization, minimizing operational and capital expenditures, and improving the health and safety of the operators.

Basically, the system allows the operator to manage the torques delivered by each roller in real time. Speed match is maintained even with differential roller loads, reducing slip to a minimum and reducing roller wear in general.

As rollers start to wear (after a certain period of operation), they experience different wear rates based on many factors like feed size, ore characteristics, hopper positioning, etc. RollXtendTM technology provides the flexibility to adjust the load taken by each roller based on the wear they are experiencing, such that both rollers can be made to wear uniformly and as a result improve the overall lifetime of the roller pair.

In terms of maintenance, RollXtend™ also has significant advantages. Currently HPGRs require regular inspections and maintenance to ensure damage to studs are contained and the equipment continues to perform efficiently. To facilitate roller inching for inspection, operators need to disengage the main drive and engage an auxiliary drive. This operation is time consuming and poses safety hazards for workers. With the RollXtend™ drive system, inspection and maintenance can be carried out without disengaging the main drive.

The benefits of RollXtend™ are better appreciated in the long term, as the system extends the lifetime of the whole HPGR (not just the rollers), offers a better maintenance experience and provides the operational flexibility to improve the crushing process performance.

ABB (abb.com) is a leader in power and automation technologies that enable utility, industry, and transport and infrastructure customers to improve their performance while lowering environmental impact. The ABB Group of companies operates in roughly 100 countries and employs about 140,000 people.

 
 
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Written by / Agency / Source: ABB Robotics / ABB Ltd

 
 

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New ABB Drive Control Feature Gets the Most Out of Your High Pressure Grinding Rollers

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RollXtend™ | ABB
Publisher Contact: Juliane Lenzner - ABB.com 
+41 43 317 64 88 juliane.lenzner[.]ch.abb.com
 
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