Planetary gear units offer highest efficiency

Siemens has widened its portfolio of planetary gear units. The Planurex 3 is available in ten sizes, with a torque range from 1700 to 5450 kNm (Fig.). This raises the highest torque in the standard modular system from the previous 2600 kNm up to 5450 kNm. The size grading is harmonized to reduce the jump in power ratings between different sizes. This makes a suitable torque and a suitable transmission ratio available for almost every application. The gear units also have the highest efficiency in their class. This has been achieved by increasing the torque density (Nm/kg) by an average of 17.2 % in comparison to the previous series.  A compact design enables space-saving, high transmission ratios to be achieved. This not only reduces the weight, but also the stress on the gear unit and application. Planurex 3 is part of an Integrated Drive System (IDS), which is available as a complete solution, comprising motor, gear unit and coupling, combined with an oil supply system. The integrated drive system facilitates economic, efficient plant operation, as the components are perfectly matched to one another.

The technologically further developed Flender Planurex series 3 replaces the Planurex 2 planetary gear unit series, initially in the XL range up to 5450 kNm. The harmonized size grading across the entire torque range allows better dimensioning of the gear units. Thanks to their ruggedness, all sizes of the new planetary gear unit can absorb peak loads up to twice their nominal torque. Siemens has also extended the warranty on the Planurex 3, and shortened its delivery times. Planetary gear units are primarily installed where high output ranges are required in limited space. They are typically used as roller press and central drives for tube mills in mines and cement plants.

www.siemens.com

Related articles:

Issue 04/2011

SGS supplies spur planetary gear units

The hydraulically driven spur planetary gear units for the travel gear of a transport crawler in a Chinese open pit mine (Fig.), ordered by a German plant construction company at the gear specialists...

more
Issue 07-08/2014

Gear units for coal-fired power plants in India

The Siemens Drive Technologies Division will be supplying large gear units and gear components for vertical mills to Bharat Heavy Electricals Ltd. (BHEL) to cover their overall demand in the coming...

more

13.06.2013 / Siemens has received a large-scale order from India

The Siemens Drive Technologies Division has received an order from Bharat Heavy Electricals Ltd. (BHEL), India, to supply 60 gear units for coal mills. The stateowned, Indian utility company is...

more

New plant for large gear units opened

SEW-EURODRIVE has opened a new plant for large gear units at its site in Bruchsal/Germany (Fig.). Accordingly the SEW-EURODRIVE now has a worldwide production network for large gear units with...

more
Issue 06/2017

Modular industrial gear units in additional sizes

At the 2017 Hannover Messe exhibition, NORD DRIVESYSTEMS will present two new gearboxes for nominal torques of 15 and 20 kNm. With these latest additions to the line-up, the series now comprises 11...

more