I am in the market for a better de-soldering tool. I have one of these spring loaded solder sucker tools, but although its fine with 60/40 solder for most part, it is very difficult to work with that on lead-free solder. There is just a split second between removing the soldering iron and applying the pump which seems to be enough time for lead-free solder partially solidify so is therefore rarely cleanly removed. ideally, it seems, you need to apply heat and the sucker at the same time which does not work well as they usually get in the way of each other.
So, anyway, I thought of getting one of these:
https://www.ebay.co.uk/itm/140W-Desoldering-Station-Iron-Gun-230V-Vacuum-Professional-Removal-ESD/142898440603https://www.ebay.co.uk/itm/150W-Desoldering-Rework-Iron-Station-Digital-De-Soldering-Gun-Dual-LCD-UK/122851753561It seems from comments on other threads that some members have used these successfully. However, I noticed that although the item 1 is described as a 140W de-soldering gun, when you look at the close-up of the gun handle it says 90W. So which is it? Or, looking at the second item, maybe its 150W or as per description perhaps 200W! I'm guessing, of course, that the heating element is as stated on the gun - 90W, but the unit consumes 140W because of conversion losses and it also has a motor to provide suction power.
There is also this type of thing:
https://www.ebay.co.uk/itm/S-993A-220V-Electric-Vacuum-Pump-Solder-Sucker-Soldering-Iron-Desoldering-Gun/332775248438https://www.ebay.co.uk/itm/NEW-S-998P-220V-100W-Electric-Vacuum-Double-Pump-Solder-Sucker-Desoldering-Gun/262869880291This item is apparently rated at 100W. I can't make out the writing on the gun handle but a look at the specs shows 100W power consumption, power 10W? Is that 10W of heating only? I don't like this option as its connected directly to the mains, must have a smaller motor in the handle for suction, the gun probably weighs more and I expect the temerature regulation is probably pretty crude. It also costs as much as the first option has more power and which is apparently ESD safe.
So before I spend my money, does anyone have one of the desoldering tools in the first two links? How do they perform. I need to do some work on PC power supplies which can have some fairly hefty joints that take some heating. Any opinions appreciated.