By | Mar 06, 2017
Last year saw the start of a major construction project in Kazakhstan designed to establish the ferry terminal in Kuryk on the shores of the Caspian Sea as the hub for the transhipment-free transportation of goods to Europe. Columbus McKinnon Engineered Products, working closely with the local company in St. Petersburg/Russia, is now fitting this construction site out with two giant loading bridges each with 24 Pfaff-silberblau special screw jacks SHE 150.1 in addition to 48 special gear motors and, in doing so, is creating the technical basis that will allow entire freight trains to quickly drive in and out of the ferries before the end of the year.
The bridge with a dead load of 400 tons is raised with a total of 12 worm gear screw jacks SHE150.1. Altogether, some 180 kW actuating power is required for this. With an actuating power of 15 kW and a maximum lifting capacity of 1500 kN, each individual SHE from Pfaff-silberblau can lift and lower around 40 tons dynamically with lifting speeds of up to 5 mm/s. When the bridge is loaded (including the weight of a freight train), the load comes to around 900 tons. In this case, the screw jacks must be capable of supporting a maximum load of up to 150 tons, whilst the technical design also takes account of an uneven weight distribution of up 40 %.
A slave-master system with absolute encoders ensures the precisely synchronised running of the screws with a maximal stroke of up to 3500 mm. The operator's safety requirements stipulated a high degree of availability, which is only possible by using a redundant concept. Consequently, the gear motors and stroke limitations are installed redundantly. In the event of a drive failing, the redundant motor can raise and lower the bridge fully on its own.
As regards safety, besides a self-locking special screw, redundant drives and stroke limitations, the screw jacks protected according to IP 66 are also characterised by additional d.c.-operated magneto-electric disc brakes on the motors. A safety nut integrated with a positive fit in the worm gear screw jack serves as a visual wear monitor. In the event of an emergency, this nut system would be capable of supporting the entire load. A flexible protection boot from a material suitable for outdoor use and a special lubricating grease protect the screws of the SHE against the extremely harsh conditions at the Caspian Sea. Standstill heating ensures reliable operation in sub-zero temperatures as low as -20 °C.
Kuryk is situated about 70 km to the south of Aktau, the largest seaport on the Caspian Sea. It is expected that the new construction will treble ferry capacity and that the handling of goods such as polyethylene, oil and iron ore will be up to five times faster than at present in the port of Aktau. Five ferries are expected to depart each day, when they will then be transporting four million tons of freight a year. With this new construction, Kazakhstan is aiming to increase its transit-transport from the current 18 million tons of freight to 50 million tons by 2030.
For further information on worm gear screw jacks of the Pfaff-silberblau brand from Columbus McKinnon Engineered Products, please visit:
Special Pfaff-silberblau worm gear screw jacks SHE 150.1 and special gear motors are installed at the port in Kuryk for moving loading bridges.
The worm gear screw jacks SHE 150.1 from Columbus McKinnon Engineered Products ensure efficient and reliable ferry operations at the port of Kuryk.
About Columbus McKinnon Engineered Products
The company Columbus McKinnon Engineered Products GmbH, Kissing/Germany, has ranked with its brand Pfaff-silberblau for many decades amongst the technology leaders in components and system solutions for mechanical motion and lifting technology. The portfolio ranges from sophisticated screw jack elements to innovative linear drives through to powerful lifting tables and wire rope winches. On the basis of these components, Columbus McKinnon Engineered Products also offers customized solutions for a wide range of different fields of application.
Columbus McKinnon Engineered Products is a subsidiary of the listed McKinnon Corporation (CMCO), Getzville/USA, a leading supplier of lifting and materials handling equipment.
Further information on Columbus McKinnon Engineered Products along with its brand Pfaff-silberblau is available online at www.pfaff-silberblau.com.
Engineered Products GmbH
Press: Petra Lugner
Whether turnkey lifting systems for trains and buses, spindle lifting elements, electromechanical components of linear drive technology or hoists
for steel and heavy industry, logistics, stage technology, offshore installations and ATEX areas.
Customers worldwide benefit from our products, services and complete solutions from project planning to maintenance.
Learn everything you need to know about the screw jacks available from Columbus McKinnon including the two types of screw jack systems, the main types of screw jacks (machine and ball) and, available features (stainless steel, anti-backlash, ,heavy-duty and more).
In the South African Karoo semi-desert, astronomers working on the MeerKAT project are using 64 radio telescopes from the German manufacturer Vertex Antennentechnik to explore space. The elevation movement of the antennas is effected using the innovative technology from Columbus McKinnon Engineered Products.
In the summer of 2015, the region's first storm surge barrier will be inaugurated in Greifswald on the German Baltic Sea coast. Columbus McKinnon Engineered Products, Kissing, uses its PFAFF-silberblau SHE screw jacks to position the sliding gates of the harbour promenade to protect against flooding.
The “Iron Gate”, on the Danube River in the southern Carpathian Mountains on the border from Romania to Serbia, is regarded as one of the most impressive gorges in Europe. Two river power stations built in 1972 – “Iron Gate” 1 and 2 – with a lockage had tamed what had been up until then the most dangerous section of the Danube River for navigation. For the maintenance of this lockage, Columbus McKinnon Engineered Products GmbH, Kissing/Germany, has now designed and installed a special lifting device. The linear lifting solution consists of four high-precision and proven heavy-duty screw jack elements SHE 100.1 made by Pfaff-silberblau. These lift and lower the heavy lock gate weighing some 200 t by 700 mm – with a deviation of less than 0.1 mm.
For natural gas filter towers in the Saudi-Arabian desert, Columbus McKinnon Engineered Products GmbH, Kissing/Germany, has developed and installed a special lifting and traversing system for exchanging filter elements. This involves the use of 19 specially designed trolleys in three different sizes and eight gantry cranes made from ATEX-compliant lifting elements and electric wire rope winches from Pfaff-silberblau. This extremely heavy-duty special solution is capable of withstanding temperatures of up to 50 degrees Celsius, sand and dust and even the explosive environment.
Thanks to their robust design, the successful SHE screw jack elements from Pfaff-silberblau are perfectly equipped for use in difficult environmental conditions. Designed specifically for use in the extremely aggressive conditions of the paper industry, the company Columbus McKinnon Engineered Products GmbH (Kissing/Germany) has now extended its versatile SHE range with the option “stainless”. The newly developed SSP series from Pfaff-silberblau with integrally cast swivel brackets is easy to clean and satisfies with ease the exacting requirements with regard to corrosion protection in the paper making and processing industry.
Hardly any other workplace has such harsh environmental conditions as a steel mill. In the face of scorching heat and the greatest dirt, the heavy work is mainly carried out by machines – and for this they must also be designed to be particularly robust. Pfaff-silberblau Hebezeugfabrik GmbH, Kissing, has developed a special push tube construction based on the SHE 150 for the adjustment of casting trolleys for the continuous foundry of a large German steel manufacturer. This encapsulated system solution from the Kissinger drive technology specialist has passed its "acid test" in the foundry and is now also suitable for other applications in heavy industry in which high loads have to be moved under unfavorable environmental conditions.
Lifting heavy loads under the harshest of conditions has always been one of the specialties for the jacking systems from Pfaff-silberblau Hebezeuge GmbH, with headquarters in the Southern German town of Kissing. With a clever special jacking system based on its versatile SHE worm-gear screw jacks, the company is now reducing downtimes for the steel industry’s galvanizing lines. The crucial feature: A special sensor monitors the temperature of the gearbox oil, and an active cooling circuit keeps it at the ideal level. Simultaneously, a contactless sensor constantly monitors the temperature at the screw and does not turn off the system unless there is a risk of overheating. In this way, system operators can ensure that their systems remain functional, but also help to minimize operational interruptions.