22 DEMAG 3
INDUSTRY NEWS
speeds, the crane control system employs dynamically overlapping travel motions to ensure that the three cranes, which operate on one runway, achieve the required high handling rates.
Safe and reliable handling: fours rolls of paper in one lift The high handling rates are also achieved by the use of mechanical roll grippers. For paper rolls measuring up to 900 mm wide, the mechanical gripper can lift up to four rolls at the same time. To do this, the process crane is precisely positioned above the centre of the roll by the warehouse management computer. Six arms engage the rolls with a constant contact pressure. Additionally integrated safety circuits – such as the
redundantly designed sensors installed in the gripper – provide for safe and reliable handling in the automated storage processes. Thanks to the compact design of the mechanical roll gripper, the rolls of paper can be placed in a tight storage pattern. This enables the best possible utilisation of the available space to be achieved with minimum gaps of only 150 mm in the store layout. This generation of mechanical grippers has already proven to be a success in automated paper-roll stores in Europe and China for many years.
Identical store concept for PM1 and PM3 The same store concept was also adopted for a common roll store for the PM1 and PM3 paper machine. The rolls in this store,
which are configured to meet individual customer specifications, measure between 620 and 2,520 mm in width and weigh between 360 and 3,300 kg. The store covers a total area of more than 2,800 sqm and can accommodate some 8,650 tonnes of paper when filled to 80 per cent capacity. The rolls are stored around the clock according to the production output of the paper machines; there is a window of opportunity of 12 to 20 hours per day for retrieval. Two identical ZKKW double-girder
overhead travelling cranes, which have a load capacity of 3.3 tonnes and a span of 35.5 m, operate on a crane runway that measures 76 m in length. These cranes are also equipped with mechanical grippers to pick up wrapped and unwrapped
Pulp Paper & Logistics
rolls of paper and store them in stacks up to a height of 13.5 m. The two cranes handle up to 80 rolls per hour. • MHE-Demag, a 50:50 joint
venture owned by Terex Material Handling and Jebsen & Jessen (SEA) Pte Ltd., was established in Asia in 1972. MHE-Demag operates a regional network within Singapore (headquarters), Malaysia, Thailand, Indonesia, Philippines, Vietnam and Taiwan, supported by eight manufacturing facilities and 40 companies and sales offices. • More information from Terex MHPS GmbH, Postfach 18 03 43, 40570 Düsseldorf, Germany. Tel: 49 211 7102-3907. Fax: 49 211 7102-3130.
www.terexmhps.com Email:
christoph.kreutzenbeck@
terex.com
We’re ready! Port of Gävle is ready to help industry around the Baltic meet the
new Sulphur Directive’s requirements. We have a new Panamax shipping channel. We have new quays to accommodate the increased tonnage. We have a new ASD tug on order. What can we do for you?
Phone +46 26-17 88 44 Email
info@gavlehamn.se www.gavlehamn.se
November/December 2014
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36