IM 2021 November/December21 | Page 54

DRIVES & CONTROLS
Bosch Rexroth Hägglunds highlights at MINExpo 2021
At MINExpo 2021 , Bosch Rexroth focussed on several Hägglunds high performance hydraulic motor offerings – the brand ’ s drives solutions are well regarded in mining for their rugged design and remarkable torque capabilities . The focus included the new Hägglunds Atom hydraulic motor for drilling , trenching , mobile equipment and other mining applications where both compact size and high power density are required . With a maximum torque of up to 13.6 kNm and a specific torque of 40 Nm / bar , the Hägglunds Atom hydraulic motor supplies full torque at speeds up to 400 rpm , enabling it to supply a maximum power of 394 kW that outstrips other motors in its class . “ Never has so much power been packed into a motor this small ,” says Wolfram Ulrich , Vice President Sales Hägglunds products and solutions at Bosch Rexroth . “ The Hägglunds Atom , with its substantially higher torque and power , is a motor that deserves its name – unthinkably small and light , but with the power to change everything for customers .” The compact and lightweight motor fits on a winch on land or at sea , and can easily handle shock loads at peak pressure of up to 420 bar . That opens the door to smaller machines in tough and unpredictable mining applications . “ The Hägglunds Atom is rugged and robust , like our larger Hägglunds motors ,” says Ulrich . “ That makes it just as dependable as it is versatile .” Also in focus were Hägglunds CB hydraulic direct drive motors . Tough and rugged with a wide range of sizes and displacements , the Hägglunds CB range Bosch Rexroth says is suitable for many heavy-duty applications , such as feeders and roll mills . “ It combines space-saving designs and versatile mounting options with a wide range of sizes and displacements to enable optimisation of the drive system when selecting the motor and the hydraulic pump combinations .”
Lastly , also showcased was the Hägglunds CMp condition maintenance program . This new service provides peace of mind through a complete , condition-based maintenance program to maximise Hägglunds equipment uptime . “ A The Hägglunds CMp condition Hägglunds connectivity maintenance program is a new service that provides peace of mind through a tool and Rexroth ’ s ODiN complete , condition-based maintenance
analytics package monitor program to maximise Hägglunds the health of existing equipment uptime installed Hägglunds systems . Then , based on predetermined service levels , Hägglunds factorytrained and certified service professionals will take the steps specified in the CMp agreement to service the drive and assure its continuing performance .”
and motion control components serving the aerospace , defence and industrial markets .
For more than 140 years , the Dodge business has been a leader in the design , production , and marketing of mounted bearings , enclosed gearing and power transmission components . It offers one of the broadest portfolios of mechanical power transmission products in the market , selling to industries including surface mining . It has roughly 1,500 employees worldwide and achieved revenues of approximately $ 600 million for the last 12 months ending June 30 , 2021 . It produces at six manufacturing sites – five in the US and one in China – and its headquarters is located in Greenville , South Carolina .
“ We are delighted that Dodge has found an excellent new home with RBC Bearings , where it
can continue its exciting growth story ,” ABB CEO , Björn Rosengren , said . “ This transaction further strengthens ABB ’ s balance sheet . In line with our capital allocation priorities , we plan to first use the proceeds from the transaction to fund organic growth , pay a rising sustainable dividend per share and make value-creating acquisitions . Furthermore , we will give an update on our plans for the Turbocharging exit and possible listing of our E-Mobility division in due course .”
RBC Bearings Chairman , President and Chief Executive Officer , Dr Michael J Hartnett , said : “ The combination will enhance RBC Bearings ’
capabilities , footprint , and customer access while increasing our exposure to Dodge ’ s attractive end
markets . Our businesses are highly complementary , with Dodge bringing new offerings , new end markets , and more scale to the combined organisation . The combined company will have an attractive position in the aerospace , defence and industrial markets with a diversified client base and expansive geographic footprint .” The transaction is expected to be completed by the end of the year 2021 , subject to customary closing conditions , including regulatory review .
Another significant shift was signalled in October 2021 , when Siemens said it is looking to give its Large Drives Applications ( LDA ) business additional entrepreneurial freedom so that it can focus more sharply on its markets and customers , ultimately to the benefit of all stakeholders . Specifically , Siemens AG spokesman Wolfram Trost told IM : “ LDA is one of the leading suppliers in the market , in a strong position overall , and has performed very well over the past months , with an innovative portfolio and excellent customer relations . More entrepreneurial freedom as a Siemens Portfolio Company has been a key driver to this . Siemens is well aware of this , and that ’ s why we will continue to strengthen and improve LDA ’ s position . To this end , we have decided to carveout LDA ’ s activities in separate legal entities .”
Trost added : “ The Portfolio Companies of Siemens AG , including Siemens Large Drives Applications ( LDA ), continuously optimise their businesses , aiming to achieve profitable growth and to find the optimal set-up . Since the start of the Siemens Portfolio Companies in April 2019 , we have always communicated that we continuously evaluate optimisations for each business .”
Siemens LDA covers a huge range of solutions but broadly it engineers and produces heavyduty electrical drive systems for medium and high voltage ranges : electrical motors , converters and generators , as well as special large drives for ships , mines and rolling mills . LDA occupies a very important position in mining – specifically with respect to large gearless and geared drives used for powering large grinding mills and increasingly large overland conveyors at many of the world ’ s leading high throughput operations .
LDA Minerals Solutions comprises the specific mining portfolio which mainly comes under the Simine brand . It consists of the gearless drives , which aside from mills and conveyors can be applied in draglines . It also includes large geared pinion drives for mills , as well as AC drives for shovels and mine winders . Finally , it includes the Siemens AC drives for mining trucks . In the bigger picture , LDA Minerals Solutions takes a comprehensive view of mining electrification and covers all aspects from generation to utility infeed , through medium-voltage distribution , to end use . The comprehensive solutions portfolio focuses on automation and digitalisation for excellence and sustainability in the minerals industry .
IM
52 International Mining | NOVEMBER / DECEMBER 2021