Cranes

SOLID AND PRECISE SOLUTIONS IN THE CRANE INDUSTRY

The era of hand driven cranes has past. Crane manufacturers now provide top performance mechanically and electrically with the aid of intelligent drive solutions from NORD Gear.

: Bevel gearmotors in use on cranes

Reliability and an exact fit ...

In crane applications, calm movement, high start-up torque, even run, synchronization of traction drives and a high level of positional accuracy are all critical specifications. Additionally, traction drives and lift drives must also be adjusted to crane types, such as the single-arm hook or a gantry crane used in shipbuilding. When using cranes indoors, space consideration also plays an important role. NORD offers a number of solutions to meet all of these requirements

... even in outdoor conditions

Wind, precipitation, temperature fluctuations are just some of the factors that mother nature uses to push the envelope for crane and gear drive design. NORD provides a range of products and options to combat these forces. NORD drives are operationally reliable from -25 °F to 100 °F, and offer a number of protective features and coatings for outdoor use. NORD also offers synchronous carriage drives to provide reliable, high power levels for the crane industry.

: Example “GOLIATH”
The shipyard portal crane ‚Goliath‘ in the Danish Odense: At a height of 375 ft. and 1,000 ton carrying capacity, this is one of the world’s largest portal cranes, designed as the successor to the shipyard crane overturned by hurricane blasts in 1999. Due to this catastrophe, particular attention was paid to wind safety during construction. 68 helical bevel gearboxes type SK 9082.1AZKSH- IEC180 drive the main winch and trolley winch. 8 helical bevel gearboxes type SK 9022.1 AZDH- 100L/4 are used for the cabin drive.

68 NORD drives are used to power a shipyard portal crane named Goliath

Precise straight-running and positional accuracy

NORD carriage drives ensure extraordinary straight-running precisions. For example, the shipyard portal crane GOLIATH, has a positional accuracy of 0.08” to 0.20”, even under the most extreme conditions. State of the art frequency inverters like the NORD SK 700E is used to ensure this positional precision. The SK 700E allows soft start-up, and has defined dynamic braking to guarantee GOLIATH will take loads exactly to there intended locations.

NORD crane drive solutions from one source

NORD’s reducers, motors and frequency inverters all have advantageous design features for the crane industry. With torque capacities up to 885,000 lb-in and 200 HP, NORD is sure to have the single source drive solution for all crane applications.