Elecon has developed and supplied to South Africa; its biggest Bevel Helical Planetary gear boxes, for Slewing and Bucket Wheel drive for a Stacker Reclaimer. These special gear boxes are supplied to M/s Metso Minerals (PTY) LTD. The Stacker Reclaimer is to be used by M/s Portnet, South Africa for handling the Iron Ore at Saldanha Bay, South Africa.
The Slewing drive includes a Bevel Planetary Gear unit, Input torque limiting coupling, Disc Brake, Motor Base frame and Slew pinion.
The Bucket wheel drive includes a Bevel Planetary Gear unit, Input Fluid coupling, Disc Brake, Combined Motor Base frame, flange output shaft with Shrink Disc and Torque arm support.
Bucket Wheel and Slew drive gear box are five stage Bevel Helical Planetary gear unit. The Pinion teeth and wheels are made from high tensile carburising alloy steel, 17CrNiMo6 as per DIN 17210 – Cast hardened to 60 +/- 2 HRC and precisely ground to class of accuracy 6 as per DIN 3961 – 63, except for the Annulus which shall be made out of 42 Cr Mo4, duly Nitrided.
The gear meshes and bearings are splash lubricated for smooth and trouble free operation.