As a Geek, I see power tools just a little different than most. I'm excited about the details and which ones have what makes sense instead of just which one is best for the ego. Sure, I like powerful. But I also appreciate it when someone just gets the balance of power and usability right.

Wednesday, March 08, 2006

Cordless Nailer Technologies

I was doing some searching today on Google and noticed something very interesting about the way people name products online. Items which we call Gas Charged Framing Nailers have been called Cordless Framing Nailers by many of our competitors. This brings up the question, what is a true Cordless Nailer and what isn't, and what technologies in "Cordless Nailing" actually work?

Gas Charged Impulse Nailers

Gas charged nailers, while not having a cord, aren't normally considered a "cordless" item. Even though Paslode calls them cordless on their own website, they aren't run entirely by a battery. In fact, the battery only acts to create a small spark to ignite a gas charge and drive the nail.

I used one of these when doing some framing at our last house during a bathroom remodel, and it worked fairly well. Since I didn't have access to an air compressor at the time, this really simplified things. This type of gun isn't recommended for extended use, but it works good enough when you're in a pinch.

The consumables are Paslode rechargeable batteries, gas charges (fuel cells), and the nails themselves. Regular maintanence also requires the Paslode degreaser / cleaner for impulse tools (see note in next paragraph).

Paslode isn't the only one making gas charged nailers. Hitachi has a gas charged nailer as well. It's very similar, but green. They have a cleaning document outlining the 30 steps to cleaning a gas charged nailer, which really illustrates why you don't want to use these for your everyday nailing needs.

Porter Cable also made one that they called the "Bammer". I assume that the "BAM" part was in reference to the small explosion from the gas charge.

Cordless Nailers with On-Board Compressors

A couple of years ago, Porter Cable had a unique idea. They built a small air compressor, strapped it onto a pneumatic nailer and ran the whole thing off of a 12V battery. The idea was pretty cool, but it didn't end up working all that well for extended periods.

From what I have read in forums, it appears that there were some issues with seals in the compressor and the tool itself. All that I know for certain at this time is they don't make it any longer. It happened to be somewhere around the time where DeWALT aquired Porter Cable, so many in the industry wrote it off as DeWALT wanting to promote their cordless nailers and not that there were service issues with this model. Regardless the cause, it was a cool idea at the time that isn't currently in production.

Clockwork Spring Mechanism

Senco decided to make their attempt at a cordless nailer much more memorable. (Insert whirring noise followed by a clunk here.) We have sold these in the past, but the time between nails (greater than 2 seconds) makes for a poor user experience. The design is fine, it actually drives the nails ok, but the time savings using a nail gun should be substantial and with these it just isn't.

The concept is cool and I happen to like it a lot. However, winding a spring for a couple of seconds before firing a nail makes it rather difficult to drive that nail exactly where you want it. The odds of moving the nailer go up the longer you have to wait, so quick firing is a very good thing. After listing this as a failure, I'll move on to what we at ToolBarn.com consider to be a good design.

Nail Pitching Machine

When DeWALT decided to enter the cordless nailer market, there were a few chuckles. With the prior failures, the general thinking was that they would also fail. However, the DeWALT cordless nailers have turned out to be amazing in comparison.

Their cordless nailers are designed with a flywheel engine, creating a “readiness to fire” that allows the tool to work as fast as the end user – firing up to 4-5 nails per second. If you've ever been to a batting cage with a pitching machine, their nailers work essentially the same way. This design provides the user with a cordless finish nailer solution that no other manufacturer has been able to deliver in the past. Quite honestly, there are a lot of jobs I'd rather use one of these than have a hose in the way.

At this time, they're all finish nailers. One is angled, the rest are straight. It seems that the emergence of Li-Ion has sort of put new cordless tools on hold, so it'll be interesting to see what they come out with once their "Nirvana" line is released. I'd think that a framing nailer and perhaps even a roofing nailer should be possible with 36 volts to play with, but the heads on the nails will cause problems with this design.

Limited Use - For Now

For now, it appears that cordless finish nailers are the only good solution for regular use. As battery technology gets better and tool manufacturers get more innovative, I'd expect to see more cordless nailers available. The nailers themselves have been slowly getting better and batteries are taking a huge step forward this year, so it should be just a matter of time before someone hits the nail on the head and gives us a full line of cordless nail guns to play with.

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