![]() ![]() How do I incorporate a swivel?Ī swivel is used to isolate the product pipe from the rotation of the drill stem and is sized based on the pull force estimated to complete the project. While it may be less expensive to have a reamer with a flat back, they may not be able to handle pre-reaming. Vermeer offers two reamers that are tapered for pullback ease: the supreamer reamer and the fluted reamer. “That way, it doesn’t meet resistance when it comes out of the hole.” “To do this, you’ll want to use a reamer that can smoothly be pushed back out of the hole, with an aggressive taper on the backside,” explained Fontana. Instead, you’ll have to do it in segments, which is called pre-reaming. ![]() It’s not possible to go from an 8-inch (20.32-cm) hole to a 30-inch (76.2-cm) hole. For larger diameter installations, a series of pre-ream stages are likely required to upsize the bore prior to final pullback of the product pipe. You should also ask yourself if you need to pre-ream. But it’s important to note that no matter the size or material you’re putting in, reamers can be built to the diameter that you need. The length of the project, the type of ground conditions and the allowable bend of the product pipe being installed may require the bore to be opened up beyond the 1.5 times rule. “So, if you’re pulling a 4-inch (10.16-cm) product through the hole, you need at least a 6-inch (15.24-cm) reamer.” “We recommend that your reamer size is at least 1.5 times the widest product pipe pack that you’re pulling through,” explained Fontana. This is important because reamers can come in a variety of different sizes. After you know the answer to that, you can select your reamer based on the size of the pipe and the material. Next, you should be thinking about how big and what kind of product you’re installing. For a complete guide to which Vermeer reamer is ideal in each kind of soil, check out our applications guide.ĭOWNLOAD THE GUIDE What’s the size and material of the product you’ll be putting in? When harder, consolidated rock is encountered, a range of tools with specialty cutters are available depending on the hardness and consistency of the rock.”įor each different soil condition, there is an ideal reamer. ![]() “Packer-style reamers are preferred in dryer, compacted soil or loose rock. “Mixer-style reamers are designed to maintain flow in high-moisture clay and sandy conditions,” said Chris Fontana, a lifecycle sales manager at Vermeer. The first thing you have to consider is the soil that you’ll be working with. What’s the soil condition you’ll be working in? To help you select the right reamer for your next project, ask and answer these five questions. There are a lot of reamer options to choose from, and if you aren’t asking the right questions, you might arrive at a wrong answer. One of the many decisions you have to make is what kind of reamer you’ll use when you’re opening the borehole and installing the product. Creating the plan for your next project can be complicated. ![]()
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