Market Unit Brochure Ports & Maritime

Cavotec is a global engineering group that enables industries worldwide to improve productivity, safety and sustainability. Cavotec delivers power transmission, distribution and control technologies that form the link between fixed and mobile equipment in the Ports & Maritime, Airports, Mining & Tunnelling and General Industry sectors. Cavotec in the Ports & Maritime Industry In the ports sector, Cavotec is a leading supplier of automated and electrical power control systems. The Group’s product range includes a diverse variety of systems such as its unique automated mooring technology, MoorMaster™,...

Cavotec Alfo Cavotec Alfo specialises in the design and manufacture of spring reels and slipring columns used in a large number of industrial sectors. Cavotec Connectors Cavotec Connectors’ electrical power, power supply, power cable and rotating power connectors serve a vast array of applications including ports and terminals, mines and tunnels, railways, steel and aluminium plants, theatres, sports venues, mobile generator sets and offshore energy applications. Cavotec Dabico Cavotec Dabico’s advanced in-ground fuel systems are in use at airports around the world, as they have been for much...

Motorised Cable Reels MOTORISED CABLE REELS TEND TO BE IDENTIFIED BY HORIZONTAL OR VERTICAL REELING APPLICATIONS, AND CONSTANT OR INTERMITTENT USE. CAVOTEC SPECIMAS ENGINEERS SUPPORT CUSTOMERS ALL OVER THE WORLD WITH THEIR SELECTION OF CABLE REELS FOR A WIDE VARIETY OF APPLICATIONS. GUIDELINES FOR CABLE REEL SELECTION Intermittent use Our hydrodynamic system is recommended for intermittent use applications. Key features of this system include compact design, constant torque output in reeling and unreeling mode, standard motor and low maintenance. Normal torque outputs are 10-700 daNm with speeds...

CAVOTEC CABLE REEL SYSTEM 1. Motor (with drive) Standard squirrel cage or torque motors, according to IEC Norms. Hydrodynamic cable reels can be supplied with a pneumatic or hydraulic motor. 2. Gearbox or Torque Unit Seven gearboxes and eight torque units are available with variable output torque from 10-1200 daNm. 3. Collector Standard sizes of collectors are available for power and signals. Current ratings vary from 10 to 2400Amp, voltages up to 30kV. We also manufacture customised collectors exceeding the above parameters. 4. Drum The drums are composed of standard elements and can easily...

Hydrodynamic systems The most unique feature of the Cavotec hydrodynamic system is that the clutch acts directly on the main drum shaft. This gives an even torque output in reeling and unreeling modes, independently of clutch slip or reeling speed, thus assuring long cable life. Due to its unique design, our hydrodynamic system is a simple solution for many cable and hose reel applications. The system is based on a gearbox in which a reduction gear, clutch and brake are built as one unit. It provides a constant torque output, allowing an even recovery of any type of cable. Our hydrodynamic cable...

Torque/speed diagram for hydrodynamic unit Nominal Torque Slip/Torque diagram Drum Speed (rpm) The chart above shows typical torque/speed for a hydrodynamic torque unit with a completely even torque output. The torque variation due to slip or reeling speed does not exceed 5-10%, depending on the size of the torque unit.

Cavotec Torque Motor System The Cavotec torque motor for cable reels provides a virtually constant torque in reeling and unreeling mode. The resulting mechanical cable tension is similar to a hydrodynamic system. This has been obtained by using a torque motor with a very flat torque/slip curve. The motors are used up to maximum of ± 400 rpm and, within this range, the torque fluctuation is approximatley 10%. Besides the motor characteristics, the gearbox efficiency also influences the traction at which the cable is submitted. The T-series gearboxes are designed with this in mind. They incorporate...

Cavotec torque control (CRC) drive The Cavotec cable reel incorporating CRC drive is the result of a cooperation between drive manufacturers and Cavotec. The CRC system achieves precise speed and torque control of standard maintenance-free squirrel cage motors. A slipping device between motor and gearbox is not needed. The Cavotec CRC driven cable reel enables an almost constant pull on the cable. In fact, by following the torque reference signal computed on the basis of reeling variables – such as cable weight, reeled cable on the drum, acceleration or deceleration of the crane, position on...

Standstill slipring applications often require a high degree of de-rating of the existing capacity of conventional carbon brush gear. Increasing the physical size of the brushes is not always a solution, since the actual contact area does not increase proportionally. Cavotec has overcome this problem by developing a multi-contact brush gear, which has effectively substantially increased the capacity. This is achieved by the separation of the brush into many independent sections ensuring a larger effective contact area. Motorised Cable Reels

Fibre optic rotary accumulator Optical signals are increasingly used in ports and terminals, where both composite and fibre-optic bundles are common. To meet these demands, Cavotec has developed a fibre-optic rotary accumulator. Thanks to its innovative design, this unit can also be used as a stand-alone rotary accumulator if the reel is equipped only with fibre-optic cable. The housing is made of stainless steel and includes anti-condensation heating elements and rotary limit switches. The signal transmission is uninterrupted, and with a fibre length of about 15 m in the rotary connector, fibre...

Panzerbelt Panzerbelt is a cable protection system incorporating a continuous semi-flexible belt, fabricated from rubber with inlaid steel reinforcement, which lies over a channel cast in the quay. The belt is riveted to the quay surface along one edge, while the other remains free to be raised by a cable guide and beltlifting device fitted to the crane. Steel reinforcement has been incorporated to retain strength and flexibility of the belt in all directions. Main advantages Panzerbelt guarantees that the cable inside the channel is entirely protected from vehicles crossing the track and from...