How to Choose centerless grinding machine?

Machined and fabricated products often need to undergo grinding processes before they can be considered complete. Not only does grinding remove rough patches and dangerously sharp edges, but it can also change the contours of the product. Centerless grinding is a versatile, popular grinding process that can be used to make in-process goods with rounded surfaces and dimensions that fall squarely within tight tolerances. There are three main types of centerless grinding that manufacturers use. Learn more about centerless grinding overall and these three types to choose the right fit for your next manufacturing project.

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What Is Centerless Grinding?

Centerless grinding processes remove excess material from a workpiece by filing it away with a grinding wheel until the product that remains has the right surface attributes and dimensions. In a centerless grinding machine, the workpiece is secured near two grinding wheels. These are the regulating wheel and the actual grinding wheel, which grinds against the outer diameter of the piece. Centerless grinding offers a smooth product finish. It’s also extremely accurate and can produce pieces with both straight lines and dimensions that meet the product specifications within tight tolerances.

Types of Centerless Grinding

Manufacturers can choose between three different types of centerless grinding to create products with different attributes.

1. Through-Feed Grinding

In through-feed grinding, a workpiece is fed into the machine with two support guides so it rotates while sitting between both the regulating and the grinding wheels. This allows for a completely symmetrical construction or the production of parallel parts, including rollers and pins in aerospace equipment. Another popular use of through-feed grinding is feeding long bars between the two wheels to produce a finished bar with a precise diameter.

2. In-Feed Grinding

Also called plunge grinding, in-feed grinding processes are commonly used for grinding projected, formed surfaces, shoulders, and parts with complex geometries, multiple changes in diameter, and other intricate designs. In this setup, the regulating wheel radially feeds the workpiece against the grinding wheel to produce the complex final shape.

3. End-Feed Grinding

End-feed grinding produces tapered parts by carefully controlling the extent of the grinding process. It’s similar to through-feed grinding in that the workpiece is fed into the centerless grinding machine against the regulating wheel and grinding wheel, but the part is stopped before it can fully go through the machine. This creates a tapered grinding effect.

Advantages of Centerless Grinding

Centerless grinding is a popular and effective method for shaping in-process metal parts into precise products. Some of the key advantages of choosing centerless grinding include:

• Speed: Centerless grinding machines have short loading times, so orders can be processed on a tight schedule.
• Volume: Large centerless grinding machines can grind high-order volumes. This results in large quantities of virtually identical metal pieces.
• Error Reduction: One of the main attributes of centerless grinding is that there is no risk of deflection.
• Long Life Span: Centerless grinding processes create a smooth finish and a controlled shape without putting too much pressure on the metal material. This results in a finished product with a longer life and less risk of breakage.

Choose Centerless Grinding Capabilities from EMC Precision

At EMC Precision, we serve our clients with precision machining, assembling capabilities, and other value-added services, including centerless grinding services. This value-added service, while not available as a standalone offer, enables us to take on the most challenging requirements for size, surface quality, concentricity, and more:

• Accuracy at tolerances—to .—exceeding conventional machining capabilities
• State-of-the-art automated loading and CNC dresser heads
• Consistent quality in the process saves cost

As we all know, centerless grinders are suitable for processing a variety of workpiece types and are widely used in medical, machinery, mold, aviation and other fields.

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FX-18S High Precision Centerless Grinder

Medical guide wire grinders as small as 0.05mm and centerless grinders as large as 150mm in diameter can meet the grinding needs of all walks of life. The application range of centerless grinders is so wide, so how to choose a centerless grinder suitable for your industry in practical applications? First of all, we can choose the appropriate machine based on industry applications and actual customer processing requirements. Secondly, we need to understand the necessary processes in the manufacturing process of a centerless grinder so that we can judge whether the grinder can achieve high precision. This is also the reason why the prices of centerless grinders vary greatly. After understanding the secrets, when we choose to purchase a centerless grinder, You can judge whether the grinder is good enough from the production process.

So what are the applications based on the customer’s actual industry?

Application 1: Large steel factory

Recently, a foreign factory with more than 30 years of experience in steel production approached Shanghai ANTISHICNC Company. The customer clearly needed centerless grinders with 200mm and 400mm wheel widths to grind 8mm-90mm diameter steel. After understanding the customer’s output requirements and grinding allowance, we recommended 3 suitable machine models to the customer. According to different diameters and output requirements, each production line is equipped with 4-12 machines, equipped with material racks, and processed separately. Rough and fine grinding. In addition, we also invited customers to visit our domestic steel customers’ centerless grinder production line at the site.

Application 2: Medical guide wire industry

We also have many applications in the medical industry. For example, our customers need centerless grinders to process thin medical guide wires. The diameter of the guide wires ranges from 0.05 to 0.1 mm in diameter. They are special tools used in the medical industry and are mainly used for diagnosis and treatment. The accuracy of the guide wire is very demanding. Our company provides customized services and can customize centerless grinders for grinding fine guide wires in the diameter range of 0.05-0.5mm. After communicating with the customer about the processing requirements, we provide the customer with proofing services.

Whether the quality of the grinder is good or bad, a very important point is whether the main components are manually scraped and whether the grinding accuracy meets the requirements. The purpose of manual scraping and grinding is to reduce the surface roughness, improve contact accuracy and geometric accuracy, thereby improving the overall matching stiffness, lubrication performance, mechanical efficiency and service life of the machine tool and flatness. This process is a very important link in the manufacturing process of centerless grinders.

Shanghai ANTISHICNC company has a wide range of centerless grinders, whether it is a workpiece with a diameter of 0.05mm or a workpiece with a diameter of hundreds of millimeters, whether you need a manual centerless grinder or a CNC centerless grinder, whether you use a through grinding process or a plunge cut Grinding technology, our company can provide you with a suitable centerless grinder based on your workpiece drawings and processing requirements. We have very professional engineers who can answer all your questions in a timely manner. If you have any needs for centerless grinders, please feel free to contact our sales engineers.