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In woodworking, there are two basic types of grinders: wood grinders, which are used to grind discarded wood pieces into wood dust, and profile grinders, which are used to sharpen the cutting instruments of a variety of woodworking machines. Unlike some industrial grade woodworking machines, which are beneficial to both small woodshops and high production woodworking operations, profile grinders are generally only beneficial for the latter, and for two reasons: they are used to sharpen blades in a short amount of time due to high production demand, and their cost makes them a bad investment for operations that don't need them.
In most cases, smaller woodworking operations send their blades to companies that offer profile grinding as a service, and only purchase a grinder when their sharpening needs make using a grinding service less affordable over the long term than having an in house grinder. While all profile grinders perform the same function, the grinding methods between profile grinders can vary. For example, instead of using a sliding mechanism to bring a cutting tool into contact with a grinding tool, some grinders place a cutting tool in a spinning mechanism to apply constant grinding and abbreviate the grinding process.
Is it Sensible to Buy Grinders Used?
As with all industrial grade woodworking machinery, one of the main barriers to purchasing an industrial profile grinder is price, especially for woodworkers that are increasing their operation to a commercial level. Therefore, used grinders are an option that is commonly explored for growing companies that need to save money, as well as for large, established companies that are looking to increase their bottom line.
Understandably, investing in used industrial wood working machines often makes woodworkers nervous about the dependability and efficiency of a machine. But it's important to remember that industrial woodworking machines are designed to stand up to commercial level use for years on end.
Unlike domestic grade woodworking machinery, ten to 15-year-old industrial woodworking machinery isn't old, as many companies use industrial woodworking machines that are 30 or more years old and haven't suffered a drop on dependability or efficiency.
How Do You Assess the Quality of Used Grinders?
To properly project the value of a grinder, you should follow a four-step process that is also valuable for evaluating all used industrial woodworking machines. Step one is to only shop with professional sellers of used woodworking machinery, as they specialize in assessing a machine's condition. Step two is to check sellers' reputation at the Better Business Bureau (BBB) and avoid sellers that have unresolved customer complaints on their record.
Step three is to ask for a copy of a grinder's official logged service record to check if it's been regularly maintained. Step four is to examine a grinder firsthand to assess its condition, or have an expert third party perform the assessment. Following these steps should lead you to a grinder that offers the dependability and efficiency of a new machine at a used machine price.
Stumps can break up your lawn, are tripping hazards and can make basic lawn maintenance more challenging. While you could hire a professional service to remove your stumps for you, a stump grinder rental may be a more economical route.
A stump grinder is large gas-powered tool that resembles a tractor mower with a large lever protruding out the front. A steel studded disc is mounted on the end of the lever and is used to chip away at the wood, leaving a large hole in the place of the stump. The lever is generally operated with hydraulics and can be moved up and down and side to side. A basic stump grinder rental is usually about the size of a lawn mower, though some models are as large as a truck.
Using the stump grinder to remove a stump is fairly easy but does require some serious safety precautions. Before you begin, you need to remove all rocks from around the base of the stump. Rocks can dull the steel teeth and can cause the disc to skip. Your rental company will likely provide safety and operating guidelines for the specific model you rent, and it is important to follow these closely. Wear protective goggles, hearing protection, a helmet, gloves, a face shield and sturdy footwear. The machine throws wood chips in the air as it goes, so being properly protected is important. Because of flying debris, it is also important to make sure that no one is within 25 feet of the stump grinder and that it is positioned so that debris will not damage vehicles, windows, or other property.
Once you have removed rocks, and donned the appropriate gear, you may want to trim the stump down as close to the ground as possible, using a chainsaw. Though not required, this step will make the stump grinding process go faster. Then, it's time to get started. Using the hydraulic lever, position the disk a few inches above the stump, then carefully move it into position directly above the stump. Turn on the machine and slowly lower the disk into the stump. Move the lever back and forth as it chips away at the wood until you have gone about 4 inches below the surface of the ground. Raise up the lever, move forward a few inches, and repeat. Continue this process until you have removed the entire stump.
The capacity of the engines used may be 2-cycle engines or 4-cycle engines. The usage differs as per the engine capacity. For example, 2-cycle engines cannot be used in hill sides, whereas 4-cycle engines can be used for this purpose. They are designed in such a manner that they do not leave any tire marks and can be used all through the year. They are suitable for use even during the rainy season. With special attachments they can be used for cutting concrete also. They are used for maintaining cemeteries, golf courses, lawns and other large areas that cannot be maintained manually. Stump grinders act as a substitute for bulldozers and are used in all the places where bulldozers cannot be used. Stump grinders are comprised of body which is generally made of aluminum, cutting heads, carbide teeth, trenching teeth, bearings legs, and the engine itself.
Stump grinders are useful to landscaping or business organizations offering excavation services. The initial capital outlay required is lesser when compared to the purchase of bulldozers. The cost of operation also works out in a small amount, because the cost of transport and the fuel required for operation are low. Added advantages of these stump grinders are that they can be carried anywhere, used in confined spaces, and clear areas without causing damage to the vicinity. Their operation can be done even in hilly or rocky areas. The simplicity, safety, efficiency, portability and cost have to be considered before making a purchase.
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