This week we will be reviewing the 12 tonne Comansa CC2070 flat top tower crane
The configuration for this crane was a 50m mast with a 70m jib
This crane was built in early 1996, so its one of the older tower cranes working in Sydney at the moment. This crane is as stable as the come, its rock solid with barely and twisting or deflection of the tower, it takes a little bit of time to slow down the slew, but nothing more than your typical 12t tower crane and the backslew works a treat.
The hoist speed is ok in 2 part but it would be painfully slow in 4 part. The hoist stops pretty much immediately, even when hoisting in full speed, this is unusual as most tower cranes keep going for a little bit, slowing down before coming to a stop. I like the immediate stop although it can put stress on the crane.
The levers are big and clunk into speed, very easy to use unlike those terrible levers that are fitted to the Ramondi cranes. It only has 3 speeds on the hoist and slew and the trolley was missing 2nd speed, no fault of this model but it was poorly maintained by the current owner and time was taking its toll, with no 2nd speed on the trolley it make operating interesting. The free slew was not wired up (it has a push button from the cabin) so for month after month it was never freeslewed, this lead to excessive play in the slew brake.
The aircon was the original from 1996 and would constantly shut down especially when it was hot, often making it uncomfortable to operate.
The crane cabin was a little bit squashy and the ladder on the tower was on a very steep incline, making climbing harder than what it could of been.
Although this crane had a few problems they were due to poor maintenance so to be fair on the crane I will rate it on how it should be.
I am giving this crane 4 out of 5. A good crane that will last you many projects if maintained properly.
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