Bon­figli­oli apron feeder drives

DEMM Engineering & Manufacturing - - PRODUCT WATCH -

Apron feed­ers, or feeder con­vey­ors, are an im­por­tant part of ma­te­ri­als han­dling oper­a­tions in min­ing ap­pli­ca­tions as they al­low the con­trolled in­put of ma­te­ri­als. They have very par­tic­u­lar per­for­mance re­quire­ments, as they are gen­er­ally a low speed ap­pli­ca­tion with very high break out torque. This start­ing torque can be up to five times higher than the nor­mal run­ning torque, so the gear­box needs to be able to han­dle a large torque range.

Bon­figli­oli has an ideal so­lu­tion for many apron feed­ers, com­bin­ing its HD he­li­cal or bevel-he­li­cal drives with its proven Tras­mi­tal plan­e­tary gear­box, which has a very high torque rat­ing and com­pact de­sign. For op­ti­mum per­for­mance this com­bi­na­tion has the ad­van­tage of a high torque ra­tio of up to 1000:1 as well as a good ther­mal rat­ing.

“The power of such com­bi­na­tions was fur­ther ex­tended re­cently with two new gear unit sizes that in­creased the torque ca­pac­ity of the range up to an im­pres­sive 1,100,000 Nm,” says Mr Kris Jaryn, Busi­ness De­vel­op­ment Man­ager, Bon­figli­oli.

The in­put stage box not only re­duces the in­put speed to the plan­e­tary head (which op­er­ates best with lower in­put speeds) but it can also be fit­ted with a shaft cool­ing fan to in­crease the al­low­able in­stalled power. The drives can ei­ther have a hol­low out­put shaft with a shrink disc, or a solid out­put shaft with a rigid cou­pling.­quiry #150705.

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