When drilling hard rock with a lightweight drill rig, a down-the-hole hammer is the most effective method.
Hello, everyone. This is Enta. It’s the last month of the fiscal year!! Let’s stay safe!! That said, we’re pretty slow here right now, though ^^ If anyone needs us, we’d be happy to come out and help! Even just for a short stint is fine! We look forward to hearing from you. Anyway, I went to a job site in Kanagawa the other day…
Tackling Hard Rock Drilling with a Down-the-Hole Hammer | Steps to Increase the Number of Bits
Hello, everyone. This is Enta. Are you able to adapt your construction work to the conditions on-site? Well, since our job (as slope engineers) involves working according to the current state of the mountain, we’re relatively flexible in adapting to various situations—but how well can you handle different scenarios? The condition of the natural ground looks something like this…
Bit Hardness Varies | Choose the Right One for the Mountain
Hello, everyone. This is Enta. This is a bit for a down-the-hole hammer. It’s a bit with a drilling diameter of about 110 mm, and I’ve used it to drill about 60 holes since it was brand new. And this is what it looks like now, lol. Here’s a side view. The main body is already worn down. I wonder if the cutting edges are worn out…
First-Time Ground Anchor Installation | A Guide for Beginners
Hello, everyone. This is Enta. The other day, I had a chance to talk with someone. During our conversation, the powerful statement, “Our chairman was the first person in Japan to install ground anchors!” came up!! The chairman wasn’t there at the time, but…
Trying Out a Down-the-Hole Hammer | Drill Performance
Hello, everyone. This is Enta. I’ve uploaded a video to YouTube showing drilling with a down-the-hole hammer. This site is made of granite, so it’s incredibly hard. Depending on the machine’s capabilities, if you were to drill with a standard backhammer, you probably wouldn’t even be able to drill one hole a day. That…
The First Time Is Great and Wonderful | The Value of Taking on a Challenge
Hello, everyone. This is Enta. The other day, I tried Akashi-yaki for the first time in Osaka! Unlike takoyaki, you eat it dipped in dashi broth. You mix beaten eggs with octopus, shape the mixture into round patties, and fry them, just like takoyaki. Here’s the finished product. It’s incredibly light and refreshing, and the dashi broth is delicious…
Shortening Construction Time with Site-Specific Solutions | Flexibility
Hello, everyone. This is Enta. The elevation difference at the job site I started working at earlier this week is probably around 30 meters. I have to walk up a pilot road (a construction access road for heavy machinery) with a slope of just under 30 degrees, and it’s surprisingly tough, lol. I haven’t been going up and down much lately, so I’m getting out of breath more easily than I expected. I’m out of shape…
Custom-Sized Clip Spacers | Compatible with D19–D32
Hello, everyone. This is Enta. Lately, we’ve been seeing an increase in custom orders for clip spacers. The sizes of these custom orders vary, but we’ve been receiving requests such as: D19 for 115 mm bore diameter, D32 for 115 mm bore diameter, D22 for 115 mm bore diameter, and D29 for 115 mm bore diameter…