Cranes & Lift­ing

The Australian Mining Review - - CONTENTS -

THE HS 895 HD is the largest heavy duty crawler crane in Aus­tralia.

De­signed for ap­pli­ca­tions such as dy­namic com­paction, cas­ing os­cil­la­tors, clamshell grabs, dragline, slurry wall grabs, plus stan­dard lift and shift ap­pli­ca­tions, this crawler crane can tackle the tough­est jobs.

Ar­riv­ing in Mel­bourne in De­cem­ber 2016, the 200 tonne HS 895 was a gam­ble for Lieb­herr and the cus­tomer as it was the first of its type.

Since com­mis­sioned on a site in re­gional Vic­to­ria, the HS 895 has proven it­self time and time again by oper­at­ing in a large sand quarry with an ex­ten­sive area rich in hor­i­zon­tal sand de­posits that were tra­di­tion­ally un­avail­able.

Pre­vi­ously, hy­draulic ex­ca­va­tors and ar­tic­u­lated dump trucks worked to­gether but only to a dig to a depth of 15m.

How­ever, once the over­bur­den was re­moved by the hy­draulic ex­ca­va­tors, the HS 895 HD had a dig depth of 40m plus; an enor­mous ad­van­tage.

Equipped with a 5.5 cu­bic me­tre me­chan­i­cal clamshell grab, and oper­at­ing with a swing ra­dius of about 180 de­grees, each full cy­cle takes only 45 sec­onds to achieve a full pay­load.

De­signed specif­i­cally with a rounded shape and spe­cial grab teeth to pen­e­trate very hard soils or in­ter­locked ma­te­rial, and fit­ted with a tagline winch con­trib­utes to quick and pre­cise op­er­a­tion of the clamshell grab, the HS 895 HD is eas­ily able to achieve a high-fill ra­tio.

Ex­trac­tion forces of the clamshell were an ini­tial con­cern of the site op­er­a­tor.

The 2 x 35 tonne sin­gle line pull, free-fall winches on the HS 895 al­lows the op­er­a­tor to have in ex­cess of 70 tonnes of pull force, which en­sures a full load in the bucket every time.

Cus­tomer feed­back noted that the in­crease in pro­duc­tion was an im­pres­sive 400 tonnes per hour.

The site op­er­a­tor had also been able to un­load the HS 895’s clamshell bucket di­rectly into the wait­ing trucks which dras­ti­cally cut down on labour and the need for ad­di­tional ex­ca­va­tors and load­ers.

This, cou­pled with the pro­duc­tion rate, more than cov­ers the ini­tial in­vest­ment and run­ning costs of the HS 895.

Lieb­herr-Aus­tralia said it looked for­ward to the con­tin­ued suc­cess of this equip­ment in Aus­tralia and New Zealand with more ad­di­tions of this ap­pli­ca­tion planned for 2019/20.

A video of the HS 895 HD can be viewed on­line at Lieb­herr’s YouTube chan­nel:

Lieb­herr’s HS 895 HD crawler crane.

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