BONFIGLIOLI Transmission is expanding its range of Trasmital planetary gearboxes to achieve more cost-effective solutions in the high torque end of the Trasmital range.
Two new frame sizes - models 316 and 318, rated at 135,000Nm and 250,000Nm respectively - have been introduced to offer a finer progression of torque capacity in the market sector between 100,000 and 300,000Nm.
Bonfiglioli general manager Malcolm Lewis said the introduction of the new models allowed each application to be targeted more precisely and price-effectively than before.
“This flexibility and customer-responsiveness will expand even further the growing market for advanced technology planetaries, which are particularly suited to heavy duty applications involving variable work cycles and both intermittent and continuous operation.
The Trasmital range will be shown at the Bonfiglioli stand no. 5316 in this year's Aimex mining and resources exhibition in Sydney from September 9-12.
The 100 per cent modular Trasmital 300 series of multipurpose planetary gearboxes is available in 16 basic sizes, with output torque up to 540,000Nm and transmissible power up to 450kW.
Trasmital 300 series gearboxes are especially suitable for applications requiring high reduction ratios, high transmissible torque and high radial loads on output shafts.
"Planetary gear units have distinct advantages over traditional helical and parallel axis gear units in many applications, offering high performance generally and enhanced performance, particularly in terms of torque transmitted per unit of weight and size," Lewis said.
"These advantages are even greater when the reduction ratio is increased, and they translate into an economical purchase price and installation.
“Further economies will now be possible with the new frame sizes, which fit between existing sizes 315-317 and 317-319," he added.
The Trasmital series' flexibility allows the gear units to be coupled with a wide range of electric motors and many types of hydraulic motors and mechanical transmissions.
Gear units are available in ratios from 3.5 to 3000:1 and above, and as in-line or right-angle gearboxes in which the first stage employs Gleason bevel gear pairing.
From one to four reduction stages can be incorporated into the 300 series planetary gearboxes, delivering progressively larger amounts of torque without the penalty of greatly increased size.