5 Must-Have Features in a Refacing Machine

What Is a Grinding Machine?

A grinding machine is a mechanical tool that&#;s equipped with an abrasive wheel intended to make shallow cuts on metals or other materials. With the right attachments, it&#;s also capable of polishing or putting other finishing touches on the workpiece. This type of operation is employed to improve the dimensional accuracy or appearance of a previously machined product. Grinding machines are used on workpieces that need highly precise forms, dimensions, or surface qualities. These machines remove relatively little metal &#; usually between 0.25 and 0.50 mm in depth. To learn more, see our Grinding Machine article.

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How To Choose a Grinding Machine?

There are several factors to consider when buying a grinding machine. Firstly, you must decide what types of materials you&#;ll be processing. Certain grinders and grinding materials are better suited to some materials than others. Secondly, the machine specifications must be considered, including: the size of the grinding wheel, the input power needed to operate the machine, its frequency and colt rating, the type of control for the grinding head, the spindle orientation, its no-load speed, and the choice between a CNC-operated or hand-controlled grinding machine. All of these will inform your choice of grinding machine. 

What Is the Most Popular Type of Grinding Machine?

Surface grinding machines are the most common style. This type works on either a horizontal or vertical axis and is used to produce either angular, flat, or irregular surfaces. It is popular because it is capable of refining and smoothing processes for a wide variety of metal and nonmetal materials and it&#;s relatively simple to use.

What Type of Grinding Machine Is Best for Beginners?

Typically, the most ideal type of grinding machine for beginners is the bench grinder. This grinding machine is a relatively simple workshop tool that does not require any experience or complicated operations on the part of the user. There are only a few major components and the machines are easy to understand. A bench grinder is an appliance used to sharpen tools and is a good choice for beginners. 

What Is the Cheapest Type of Grinding Machine?

One of the cheapest types of grinding machines is the bore grinding machine. This is used to bore holes into wood, stone, and metal. It has a relatively simplistic design and is intended for private use. As such, it does not require intricate training or programming like some industrial grinding machines. Additionally, these machines are highly durable, so you&#;re unlikely to need to repair or replace them often. Finally, bore grinding machines consume small amounts of energy compared to most.  

What Is the Most Expensive Type of Grinding Machine?

One of the most expensive types of grinding machines is the jig grinder. These devices have very small grinding heads in order to cut detailed features into their workpieces. However, extreme precision is expensive to create, calibrate, and operate. To achieve it, they are very complex and thus very expensive. 

What Type of Grinding Machine is Good for Cutting Metal?

All types of grinding machines can be used to cut metal, but some types are better suited to certain material types than others. Belt grinding machines, for example, are specifically designed to shave metal from flat surfaces while gear cutting machines grind specific shapes deep into the part. The volume of metal that needs to be cut must be taken into consideration. For example, large-scale production requires a  grinding machine such as the SMSB SGC that can grind 40 times more metal than many similar grinding machines. The size of the wheel is proportional to the size of the workpiece. However, all grinding machines are capable of cutting metal and can be used to remove material.  

To learn more, see our guide on Metalloid Properties.

Can a Grinding Machine Be Used for Cutting Plastic?

Yes, grinding machines can be used for cutting plastics if outfitted properly. One of the most common reasons is to crush plastic waste into a usable form for recycling. Materials such as pipes, bottles, and plastic sheets are all examples of plastics that can be cut with grinding machines. 

To learn more, see our article on What is Plastic.

What Are the Uses of Grinding Machines?

Grinding machines are primarily used to change the quality and physical appearance of a workpiece by altering its dimensions, shape, and/or surface. It is an operation that improves upon a previously machined product to achieve light cuts or fine finishes, such as sharpening the edges of blades. This method can be used on a variety of materials, such as: metal, wood, plastic, and stone. However, it is primarily performed on steel or iron. 

Are Grinding Machines Dangerous?

Yes, grinding machines can be dangerous when used improperly or without adequate safety precautions. Their abrasive wheels operate at high speeds to cut through dense materials such as ceramic and metal. Contact with the wheel while in use could therefore easily damage human tissue. Additionally, the grinding action throws off tiny fragments of metal that can harm the eyes. Concrete, meanwhile, will release silica dust that can cause lung irritation and pulmonary diseases after long-term exposure. Proper PPE is critical.

For more information, please visit Refacing Machine.

Summary

This article presented types of grinding machines, explained each of them, and discussed when to use them best. To learn more about grinding, contact a Xometry representative.

Xometry provides a wide range of manufacturing capabilities, including machining and other value-added services for all of your prototyping and production needs. Visit our website to learn more or to request a free, no-obligation quote.

Disclaimer

The content appearing on this webpage is for informational purposes only. Xometry makes no representation or warranty of any kind, be it expressed or implied, as to the accuracy, completeness, or validity of the information. Any performance parameters, geometric tolerances, specific design features, quality and types of materials, or processes should not be inferred to represent what will be delivered by third-party suppliers or manufacturers through Xometry&#;s network. Buyers seeking quotes for parts are responsible for defining the specific requirements for those parts. Please refer to our terms and conditions for more information.

Feb 16,

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There are plenty of surface grinders for sale promos out there. However, before you pick up the or fire off an , hold up. It&#;s a good idea to first separate the must-have machine features from those that are nice to have. Secondly, you should have a solid grasp of what makes some surface grinders top notch, and others not so much. Here are a few pointers:

Surface Grinder Construction

• Of all the different machining operations, surface grinding is among the most demanding in terms of accuracy. This is why a heavy machine with precision turcite ways and robust spindle construction is critical to grinding success.
• How many parts are you making? If you&#;re looking at occasional toolroom grinding or are doing hobby work, a manual hand feed grinder should be plenty. But for higher volumes, look for a machine with automatic cross feeds, incremental down feeds, and hydraulic table movement.

Surface Grinder Must-Haves

Here are some other machine features that make grinding life much easier. More importantly, they help to provide consistent part quality year after year:

• For instance, a centralized lubrication system brings way oil to critical machine components. And having one that&#;s automatic means there&#;s one less thing to worry about.
• In addition, an electronic cross feed provides greater precision than older mechanical systems.
• A servo-powered, rapid vertical elevation feature saves time and eliminates cranking.
• As their name suggests, easy to use operator controls reduce hassle. They also make each shift much more productive.
• Digital readouts were once considered nice to haves. No more. Having one greatly reduces the chance of scrapping an expensive workpiece.
• Hydraulic overhead dressing keeps wheels running parallel and true.
• Look for a magnetic fine separator and paper coolant filter. Both help to improve part surface finishes and extend grinding fluid life.
• Lastly, don&#;t forget about up-time. Ask for customer references and be sure to ask plenty of questions.

Kent USA has had a wide selection of surface grinders for sale since . During that time, it&#;s sold more than 22,000 units worldwide. The company&#;s sales reps and service technicians have years of experience. Job one for them is to support customers and keep their equipment running in tip-top condition. Forget those &#;surface grinder for sale&#; promos and give us a call. We&#;ll get you grinding in no time.

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