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In
1990 we were commissioned to design and build 16 units of crawler scissor
lifts for a project in Saudi Arabia. This project is for the
building of a multi-storey carpark around Medina mosque, the second
holiest site in the world for Muslims.
The purpose of these crawlers are to lift 2 types of formworks, one weighing 12 tons and the other weighing 24 tons, up to a height of 4.5 m above ground. We came up with a design for 2 types of crawlers. Type A with twin pair of scissors that is capable of lifting 24 tons and Type B with a single pair of scissors which is capable of lifting 12 tons. For the first unit, a trial test was held in Singapore where actual concrete casting were performed. After the trial, the unit was taken apart and shipped to Saudi Arabia, where we assemble them there again. |
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| The beginning of the works.... | |
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| The first test...without load | The second test...with load |
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| Installing undercarriage and hydraulic pipings | Installing the tracks |
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| Testing Type A with 24 ton formwork | Testing Type B with 12 ton formwork |
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| In operation in Medina, Saudi Arabia | |
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Copyright © 2000 by Syntech Engineers Pte Ltd |
