I think he is talking about the gun which has a hollow core soldering tip:The mechanism is an O-Ring sealed single stroke vacuum pump that is powered by a spring. There is a mechanical hand operated release on the latch that holds it in the cocked position. TRiggering it causes the spring to rapidly withdraw the piston, creating the vacuum. The exact nature of the latch varies with model.
I don't think that most Hakko desoldering guns use a manually operated spring vacuum pump, but rather an electrical vacuum pump in the hand piece or in the base station.The mechanism is an O-Ring sealed single stroke vacuum pump that is powered by a spring. There is a mechanical hand operated release on the latch that holds it in the cocked position. TRiggering it causes the spring to rapidly withdraw the piston, creating the vacuum. The exact nature of the latch varies with model.
Whether is it overpriced depends on your requirements. We use the Hakkos in an undergrad electronics lab and they worked for years, easily, with only a little instruction.They also strike me as being very overpriced. I notice that they sell the classic hand desoldering pump for $18.97 when you can buy a set of five of them on Amazon for $9.
Yes, the tips can last a long time—but they can also be destroyed by an unskilled operator. It also requires some skill to get the tip in a position where it will effectively suck up the molten solder. This is part of the reason for the destroyed tips, the unskilled operator thinks shoving the tip up to the iron is the answer.I've always used either solder wick or the old-fashioned hand-operated spring & piston pump. The one I have I bought at Radio Shack about thirty years ago and I still have the original tip. I don't know what it's made of, seems like nylon, but I'm not at all certain. It shows almost no signs of melting.
|Thread starter||Similar threads||Forum||Replies||Date|
|Mechanism to hold a servo in place ?||General Electronics Chat||16|
|M||Steppermotor & mechanism problem||Automation, Robotics & Control||8|
|G||How to build a circuit lifting mechanism with a sensor||Analog & Mixed-Signal Design||4|
|E||What is functional principal and application of digital transistors?||Analog & Mixed-Signal Design||10|
|T||Principal Component Analysis||General Electronics Chat||5|
by Jake Hertz
by Jake Hertz