Rotary Percussion Consumables | Explaining the Service Life, Life Extension, and Repair of Cleaning Adapters and Cam Followers Using Real-World Examples
Hello, everyone. This is Enta. Obon is coming to an end, but I’m still busy with all sorts of paperwork as usual, lol. The scorching heat at this time of year really takes a toll on the body, but the machines are wearing out just as fast, lol. Anyway, moving on—this time, I’ll be talking about consumables for rotary percussion machines: “Where do they wear out…
On Hole Warping During Drilling in Rotary Percussion (Part 2)
Hello, everyone. This is Enta. Today, I’d like to talk about hole warping when drilling holes in rotary percussion instruments. I talked about hole warping the other day, and here I am talking about it again lol. The warping I mentioned the other day was vertical, but this time I’ll be discussing horizontal warping. It’s easy to understand how the weight causes the hole to warp vertically, right?…
Core Sampling Using Rotary Percussion
Hello, everyone. This is Enta. For the past two weeks or so, I’ve been digging holes on a construction site lol. When I tell regular people I’m digging holes, they ask, “With a shovel!?” But when I say this to people in the construction industry, they usually ask, “With an excavator?” A slope specialist…
As we move forward with digital transformation in the construction industry, aren't there other areas where we could improve efficiency?
Hello, everyone. This is Enta. Don’t you ever come across management or construction practices in various prefectures or regional construction bureaus where you wonder, “What’s the point of this?”? The specifications are supposed to follow those of the Ministry of Land, Infrastructure, Transport and Tourism, but for some reason, there are times when the special specifications say, “Do this and that,” right? In one prefecture, regarding drainage…
While daily inspections of machinery used on a regular basis are important, it’s also important to pay attention to the noise the machinery makes while it’s running.
Hello, everyone. This is Enta. The machine that had been running like a champ until just the other day!! It suddenly started acting up because of the cold snap we’ve been having... Up until then, it had been drilling away like crazy, but for some reason, the engine isn’t running right. Machines can suddenly break down over the slightest thing…
Methods for Lifting a Drilling Rig onto a Slope (Part 5)
Hello, everyone. This is Enta. How to Lift a Drilling Rig onto a Slope (Part 1) How to Lift a Drilling Rig onto a Slope (Part 2) How to Lift a Drilling Rig onto a Slope (Part 3) How to Lift a Drilling Rig onto a Slope (Part 4) I thought it ended with Part 4…
Drilling Depth and Machine Size in Ground Anchor and Rebar Insertion Work (Part 1)
Hello, everyone. This is Enta. How do you go about selecting a core drill? In our case—though I imagine most contractors do it similarly—this is just a general guideline. *This excludes special drilling methods. Drilling diameter: φ65 (no scaffolding required). Drilling depth…
A Note on Inner Bits
Hello, everyone. This is Enta. Today, I’m going to talk about bits, lol. “Inner bits” are the bits used for drilling holes in the double-walled tubes of rotary percussion instruments. Since the “outer” bit is on the outside and the “inner” bit is on the inside, there are various types of inner bits as well. Everyone…
I posted a video on YouTube showing how to operate the rotary percussion machine! And it turned out to be a manufacturing defect!
Hello, everyone. This is Enta. Today’s video is about how to use Rotary Percussion! That said, this video is actually 1 hour and 15 minutes long, lol. I just uploaded the footage from my recent Facebook Live stream directly to YouTube. Subtitles…