Page 108: of Maritime Reporter Magazine (November 2016)

Kazakh Module Carriers

PROPULSION

COX Powertrain (hoto: COX) (hoto: Vard/Schottel) 12 main and auxiliary units. For the Norwegian

COX’s 300hp Diesel Outboard

Cox Powertrain will preview its professional Vard Group, who are building the ? rst 15 ves- outboard motor, the CXO300, at the workboat sels for Topaz Energy and Marine, and the later three for KMTF, the National Maritime Republic show in New Orleans. Cox brought together en- gineers from Formula 1 racing and automotive of Kazakhstan, it was Schottel’s experience and service in the Caspian Sea that reportedly made engine design to develop this new concept die- the difference. These waters are extremely shal- sel engine, providing gasoline outboard perfor- mance, with diesel economy and reliability. Cox low in places, and are also clogged with mud, will display a full sized model of the CXO300, ? shing nets and ? shing lines. Schottel has many years of experience with its sealing systems and which is an opposed-piston, diesel outboard de- product variants in other customer ? eets. Another signed speci? cally for professional marine users. positive was Schottel’s on-site service, enabling

Delivering 300hp and weighing 660 lbs., it is de- signed for commercial, government and military downtime to be kept as short as possible.

A total of 36 special variant SRP 340 Rudder- applications.

propellers (formerly SRP 1012) were ordered www.coxmarine.com as the main propulsion units for all 18 carriers.

Along with them, 30 STT 1 CP transverse thrust-

Schottel: 72 Systems for ers are being used as well as six SPJ 132 Pump

Kazakh Module Carriers

Having already secured the contract in early Jets as an additional maneuvering aid in the three wider vessels. The delivery period is scheduled summer to ? t 15 Vard design 9 21 module car- for the 12 months leading up to the end of 2017.

riers, Schottel has received a follow-up order to www.schottel.com ? t three additional Vard design 9 28 vessels with

Keller Gearbox for Giant Cutter Dredger

C u. W Keller GmbH & Co.KG (Keller) has manufactured gear wheels and gearboxes for more than 100 years, and today is a specialist gearbox supplier to dredging operations. When the Chinese dredging and shipping company Tianjin Dredging Corporation (TDC) decided to build the Tian Kun, one of the largest dredging vessels for the Chinese market, Keller was commissioned to build three pump gearboxes and also the cutter-head gearbox. In addition to gearing systems for two inboard pumps and an underwater pump, this project also involved a cutter-head gearbox with a nominal engine power of 5,000 kW. This contract is particularly interesting for Keller as the company is very well known in Europe – claiming about 75% of all large cutter-head gearboxes in Europe over the last decade – yet a relatively new name in the

Asian market. For Tian Kun, in addition to the classic bearing, shaft and interlocking calcula- tion, comprehensive research was also carried out on the deformation and stress behavior of the gear-casing structure using FEM. This was conducted with the aim of optimizing the cas- ing structure due to the immense and additional changing loads that occur during the dredging process. The optimized gears have a ? nal weight of 180 tons. www.keller-getriebe.de/index.php/en 108 Maritime Reporter & Engineering News • NOVEMBER 2016

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