Low-pressure Down-the-hole Impactor
If you're working on a site where the air compressor isn't a beast, or you're tired of high-pressure hammers that constanty choke under low PSI, the CIR series is your go-to. We designed these for the reality of small quarries and water well projects—where things get dusty, the air pressure is often limited to $0.5 - 0.7\text{ MPa}$, and you just need the job done without the equipment throwing a tantrum.
Why these hammers actually make sense
They don't need much to run
You don't need a massive, expensive compressor. A low-pressure down-the-hole impactor like the CIR76 or CIR90 keeps a steady rhythm even when the air supply is modest. It's about getting consistent penetration, not just raw, wasted power.
Simple inside, fewer headaches
We stripped out the over-engineered parts. There's no complicated valving to get clogged with grit. If it stops performing, you can usually pull it apart right there on the dirt, give it a quick clean, and get back to drilling in twenty minutes.
Built thick where it counts
The outer casing is heavy-duty. It's meant to be dragged through rocks and shale. It might get scratched and lose its paint on day one, but the internal piston will keep hitting just as hard.
Fits what you already have
These use standard CIR shanks. If you've got a pile of bits in your warehouse, chances are they'll thread right on. No need to buy a whole new ecosystem of tools.
Technical Specs(The Quick Guide)
Real Talk (FAQ)
Q: Is it going to break if I hit hard rock?
A: It's tough, but let's be honest: if you're drilling into solid basalt or granite all day, a low-pressure down-the-hole impactor isn't the fastest tool for the job. It'll do it, but it's really at home in medium rock like limestone or weathered layers. For the hard stuff, ask me about our high-pressure line.
Q: How often do I need to fix it?
A: If you keep the lubricator filled with oil, these things run for a long time. Most of our customers only swap the internal parts after a few thousand meters of drilling. The main "killer" isn't the rock-it's running it dry without oil. Keep it lubed, and it'll be your best friend.
Q: What if it gets stuck?
A: The CIR design is pretty forgiving. Because the air exhaust is efficient, it clears out the dust and chips well. As long as you're not trying to drill through mud, the hole stays clean and the hammer stays loose.
Q: Can I get spare parts quickly?
A: We keep pistons, check valves, and seal kits on the shelf. We know that if your rig is sitting idle, you're losing money. We usually ship spare parts within 48 hours.
Who is this for?
If you are a contractor running a mid-sized rig, or an importer looking for a hammer that won't result in "performance complaints" from local drillers, the CIR series is the safe bet. It's not the fanciest piece of tech in the world, but it's the one that's still working at 5 PM when others have seized up.
Drop us a message with your hole size, and I'll tell you exactly which model and bit combo will work best for your ground conditions.
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