I need to know exactly how much weight they can lift also how much do they weight?how long is thier life-time?in what temprature they can work?does mosture do any harm to them?for installation , do they need foundation?the exact height and width?
Because of the air flow around itFire needs oxygen to burn and because there is no air flow around it, the fire has trouble burning Why is the pipe aluminum?
The aluminium pipe is able to absorb most of the heat from the ignition source, thus making ignition less vigorous.
You need to be more specificThe lifting capacities for container cranes varies significantly, as does any other craneSome of the variation is based purely on load (horsepower) availability; some is based on speed (rpm) for lift/drop portions of the cycleCranes like these operate year-round, at ports all over the worldSome ports have average ambient temperatures in the range of 45 C, with highs up to 60 COthers can be as low an average as 10 C, with a low peak as much as -50 CMoisture will, over the long haul, harm them - they're metal constructs, and thus are prone to oxidationUsing corrosion-resistant materials and/or coatings will certainly prolong their usable lifespanThe crane drives (electric motors and power electronics) are also susceptible to moisture and other contaminantsAll true dockside cranes require some sort of permanent foundation; it's usually part of the pier construction itselfHowever, there are portable cranes that operate without oneThere is also more than one crane manufacturer out there - all will have their trade secrets that will make each look a little different than the restIt will generally also reflect in their operation parameters, and in their expected life cycle.
