Abrasive Tools

Enying: Your Professional Abrasive Tools Machine Manufacturer!

Professional Team
Jinan Enying Machinery Manufacturing Co.,Ltd is an enterprise specializing in the research, development, production and sales of new abrasive products. We are the leader in China's food machinery, especially the stone grinding industry. The company has gathered a group of outstanding talents in scientific research, production and sales, creating a professional team with strong R&D capabilities.

Rich Manufacturing Experience
We have more than 40 years of experience in the production of stone grinding equipment, focusing on the design, innovation and manufacturing of food processing machinery, with a 5,000 square meter modern standardized production workshop. Fully automatic high-precision molding machines and semi-automatic standardized production lines enable annual output to reach 50 million pieces.

Strict Quality Management
Our company's abrasive products are made of high-quality raw materials. We have a strict and standardized quality control system, and each product undergoes quality testing before leaving the factory. We use sophisticated testing equipment to ensure the high quality of our products. The product quality meets EU export standards and is exported to more than 50 countries and regions in Europe, the United States, Southeast Asia, and South America.

24 Hours Service
We have a dedicated service team that can quickly respond to your inquiries at any time. And service personnel will provide you with timely feedback from consultation, order follow-up to after-sales, so that you can know the latest status of production and delivery, and enable your sales plan to be implemented on time.

Abrasive Cutting Disc

The cutting disc belongs to the grinding wheel. It is made of abrasive and binder resin for cutting

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4.5 Inch Flap Disc

size:4.5/5/6/7/8 inch . grit:40/60/80/100/120/240#material:aluminium oxide, calcined aluminium

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3 Inch Quick Change Disc

The 3 inch quick change disc is characterized by its small size, which makes it ideal for working

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Abrasive Fiber Disc

fiber discs are used for rough machining of various complex surfaces made of metal materials such

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115mm Thin Cutting Discs

The cutting disc belongs to the grinding wheel. It is made of abrasive and binder resin for cutting

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6 Inch Flap Disc

Mainly used for grinding and polishing in industrial production. The base of the impeller is made

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6 Inch Velcro Sanding Discs

sanding disc is a material used for grinding. It is used to grind the surface of metal, wood, etc.

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80 Grit Flap Disc

size:4.5/5/6/7/8 inch . grit:40/60/80/100/120/240#material:aluminium oxide, calcined aluminium

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Cutting Disc Cutting Wheel For Metal Abrasive

The cutting disc belongs to the grinding wheel. It is made of abrasive and binder resin for cutting

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Alumonium Oxide Flap Disc

size:4.5/5/6/7/8 inch . grit:40/60/80/100/120/240#material:aluminium oxide, calcined aluminium

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6 Inch Cutting Disc

The cutting disc belongs to the grinding wheel. It is made of abrasive and binder resin for cutting

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355mm Cutting Disc

The cutting disc belongs to the grinding wheel. It is made of abrasive and binder resin for cutting

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What Is Abrasive Tools (Abrasive Disc) ?

The abrasive discs are a fundamental piece to be able to use a fixed or portable tool that helps us to cut, roughing or sanding any material, through friction. Its design, shape and composition will vary according to the use that will be given. In general, its composition is based on a series of crushed abrasive grains, joined together by a binding agent, anchored and fixed to a support material. These grains can be made of natural or synthetic aluminum oxide, silicon carbide, zirconium, ceramic or diamond.

The use of abrasive discs in the secondary steel industry is widespread: from shipbuilding and manufacturing of household appliances, components for the automotive and construction sectors, special profiles, pipes and electrical appliances to maintenance and repair of equipment, tools and machines.

Types of Abrasive Discs

Flat Cutting Discs
Flat Cutting Discs, also known as Cut-Off Wheels, are standard, flat, thin, and circular abrasive discs engineered to provide a quality, durable and long-lasting cutting performance when cutting through materials such as wood, ceramic, stainless steel (Inox), steel, aluminium, iron, and stone. These cutting discs are often made of highly abrasive materials such as aluminium oxide or silicon carbide. These high abrasive discs come with a range of thickness from 0.8mm to a maximum of 4mm and usually offer a variety of grit sizes from 24 to 120.

Depressed Centre Cutting Discs
Depressed Centre Cutting Discs serve a similar purpose to Flat Cutting Discs for cutting through a range of materials, but their outer shapes are different. A standard cutting disc is flat in shape. Depressed Centre Cutting Discs, also referred to as raised hub wheels are designed with a concave shape at the centre, or the centre is depressed. Their unique concave shape is ideal for curved workpiece, uneven surfaces and perform high cutting performance at any areas that are narrow or difficult to reach.

Diamond Cutting Wheels
Diamond Cutting Wheels, also known as Diamond Blades, are super abrasive wheels coated with diamond crystals on its cutting edge. The diamond crystals used are synthetic diamonds rather than natural diamonds. Synthetic diamond crystals are one of the hardest materials available as it is manufactured through high pressure and high temperature processes. There are three types of shapes for the diamond cutting wheels: segmented rim, continuous rim, and turbo rim.

Flat Grinding Discs
Flat Grinding Discs also known as Grinding Wheels, are a type of durable and circular abrasive disc containing abrasive grains for grinding and removing materials from the workpiece surface in small chips. It can be operated with an angle grinder to perform any grinding tasks with high performance and achieve particularly high stock removal rates when working on certain materials such as stainless steel (Inox), steel, aluminium or iron. These grinding discs come with a range of grit sizes from 24 to 120 and a large range of diameters.

Depressed Centre Grinding Discs
Depressed Centre Grinding Discs serve a similar purpose to Flat Grinding Discs which perform grinding tasks on certain materials’ surface, but their outer shapes are different. Depressed Centre Grinding Discs, also referred to as raised hub wheels are designed with a concave shape at the centre, or the centre is depressed. Their unique concave shape is ideal for curved workpiece, uneven surfaces and performs grinding tasks at any areas that are narrow or difficult to reach.

Sanding Discs
Sanding discs are one of the essential tools for machining or fabrication works. Sanding discs are circular abrasive discs specially used for smoothing edges, finishing, or removing materials usually due to light defects or corrosion. The sanding discs are available in different sizes, grades, and grit sizes from 24 to 600 to meet various industrial applications. Often these discs will need to be attached onto a backing pad so that they can be mounted onto a sander, angle grinder or other tools to operate efficiently.

Flap Wheels
Flap Wheels are versatile circular abrasive tools engineered with high quality coated abrasive materials to provide consistent grinding and finishing on various materials including stainless steel (Inox), steel, iron, and other non-ferrous metals. Typically, the flap wheels are mounted to the tool and arranged in a fan-like structure around their centre axis. The rough surface on flap wheels help to produce a finer surface and excellent finishing.

Benefits of Our Abrasive Tools

Optimized Performance
The abrasives used have also been engineered to work with high-speed angle grinders (80 m/s) and are designed to offer a wide range of possible applications. The optimised arrangement of the grinding flaps ensures first-rate grinding performance, long service lives and optimised utilisation to the end.

Sustained High Performance
The cloth flaps are coated with zirconia alumina, ceramic or aluminum oxide and spaced equally on the backing plate. The optimised cloth-reinforced backing guarantees the operator a fresh grit and, thus, consistent removal throughout the entire work process.

Tried-and-tested Safety
A special manufacturing process ensures an exceptionally strong bond between baking plates and grinding flaps and produces a level of break resistance that easily exceeds the provisions of the OSA and EN 13743 standards.

Extraordinary Stability
The backing plates included in our abrasive discs are made of glass fiber or glass-fiber reinforced plastic. They are extremely hard-wearing and deliver optimal power transmission to the workpiece.

Abrasives Used in Different Abrasive Discs

Aluminum Oxide
Aluminum oxide is the most used material for most abrasive products, including sanding discs. This grain is suitable for sanding and grinding a variety of materials such as wood, most metals, and plastics. It is affordable, versatile, and has good durability. However, it may not be as effective for harder materials such as stainless steel.

Zirconia Alumina
Zirconia alumina, aka “Zirc”, is tougher than aluminum oxide and is used for sanding harder materials such as stainless steel, cast iron, and titanium. It has a longer lifespan and is more heat-resistant than aluminum oxide, making it ideal for heavy-duty grinding and sanding applications. Zirconia is also a great choice for high-pressured grinding and machining applications.

Ceramic
Ceramic abrasive material is designed to handle extremely tough sanding applications. It is ideal for grinding hard metals, such as steel and titanium, ferrous metals, and carbon steel. It is extremely durable, self-sharpening (friable), and resistant to heat, making it a good choice for high-speed grinding.

Diamond
Diamond abrasives are the most durable and longest lasting abrasive materials. Diamonds are the hardest naturally occurring substances, making them capable of grinding and sanding extremely hard materials such as concrete, stone, and glass. However, diamonds are obviously very expensive, making these the most expensive abrasive material.

Silicon Carbide
This abrasive material is razor sharp and ranked just slightly below diamonds on the hardness scale. Like ceramic, silicon carbide is also friable/self-sharpening, giving it the ability to have faster removal rates than other abrasives. It is best suited for sanding non-ferrous metals such as brass, copper, and titanium. It is also suitable for grinding glass, plastics, and refinishing hardwood floors. It is known for its aggressive cutting action and excellent finish. However, it is not as durable as other abrasive materials and may wear out quickly.

Non-Woven
Non-woven sanding discs are a bit different than the coated abrasives mentioned above. These discs are constructed with a nylon-webbing, usually impregnated with abrasive grains. They are less abrasive than coated abrasives, making them ideal for finishing surfaces.

Backings of Abrasive Tools

Paper - Generally offers one of the best finishes, but can be easily torn. Depending on the thickness of the paper, it can be more or less flexible and more or less durable. Paper is often the least expensive. Paper is good for hand and orbital sanding and can also be utilized on belt sanders.

Cloth - Cloth products are often quite durable and can be utilized for heavy duty machine sanding. Cloth products come in various weights and some are very sturdy, while others are very flexible, to match contours and profiles. Because the cloth used in these products contains a weave, this can cause an uneven scratch that could cause issues in the finish. Cloth products are typically used in applications where durability and stock removal are the highest priorities, as well as in some cases where flexibility and durability are needed. Cloth generally comes in belts and discs. Cloth products are also typically rated for wet applications and can withstand grease; they are also washable.

Film - The film used for coated abrasives is generally seen to be the optimal combination of durability and flexibility for sanding discs. It provides a very flat surface for the grains, while also being resistant to tearing and able to bend to match profiles. These qualities mean it is good for both leveling/shaping and finishing applications, where orbital and hand sanding will be done. Film products (paper as well) can be combined with interface pads on orbital sanders, to aid in contour sanding, reduce swirls and reach hard to access places.

Foam - While coated abrasives on foam sponges can be used on white wood, they are generally used more frequently for finishing applications, such as sanding between coats of finish. Two types of foam are generally used - softer, more flexible and harder, less durable. Sponges are available in two types from Uneeda - those with hook and loop backing for use on orbital sanders, and those without - made simply for hand sanding applications.

Main Functions of Abrasive Discs

Cutting
Some abrasive discs are meant to cut through metal. Depending on the metal, some abrasives can be used or not. For example, zirconia would be used for cutting mild steel, while aluminum oxide would be the choice for cutting other metals.

Grinding and Polishing
Grinding a surface or piece means removing stock or shaping it. On the other hand, polishing refers to the smoothing or blending of a surface or piece. Both operations can be made with the same type of abrasive disc, but the grain must differ. While grinding (for example to weld blending) would require a coarse grain, polishing would need a finer grain. Some surfaces might need to be polished to offer a better appearance and others would need some polishing to be prepared for a new coating.

Rust and Contaminants Removal
Rust is something that can be over just a part of a surface or piece. That means that the abrasive used for rust, scale, or other contaminants removal should be mild enough to clean but preserve the entirety of the piece.

Deburring Equipment
Sometimes in the production process, a piece can develop heavy burrs or even sharp edges. Then, some deburring might be needed to bring the piece to the ideal finish. In particular, flap discs are the most commonly used abrasives for this operation.

Technical Details of Abrasive Discs

Disc Material: White alumina or white corundum (WA), aluminum zirconium oxide (Z), aluminum oxide (A) or silicon carbide (C).

Grain Size: coarse (20-40), normal (50-60), fine (60-120).

Disc Hardness: That is, the bond strength between the binder and the abrasive grain can be soft grade (A-K), medium grade (L-T), hard grade (U-Z). The “harder” it is, the longer its useful life, and the “softer” it is, the faster the cutting speed. The degree of the mixture will be adapted to the application that is going to be given.

Type Of Binder: Synthetic Resin-Bakelite (B), synthetic resin-reinforced Bakelite (BF), shellac or epoxy (E), oxychloride (O), rubber, (R), reinforced rubber (RF), silicate (S) or ceramic vitrified (V).

Disc Geometry: T41 flat (on extra-fine cut-off wheels), T42 sunken center (on iron cutting wheels), or T27 sunken center (on roughing discs).

Manufacturing Process of Abrasive Disc

Raw Materials
Raw materials are the first and vital step to manufacturing the abrasive wheel. The raw materials include abrasive grains, bonds, and filling. Different wheel requires different kinds of raw materials. Take an instance, The factory usually uses synthetic non-woven fiber and abrasive emery as the raw materials of the flap wheel.
Mixing the Ingredients
When all materials are set up. We need to mix them thoroughly and dry them.
Molding
After drying them, it’s time to form them in mold. Forming them could make the product easier to use and to be installed. In this step, we also should insert the special glass fiber(glass cloth) as reinforcement during the process of molding.
Pressing
Pressing is an important step to ensure the finished products can fit the required standard. In this pressing process, establishing even thickness is the key point of pressing. Therefore, some professional manufacturers would control the thickness by closely monitoring the consistency of the mix and the force of the press.

Placement
After demolding, the wheel should be placed on an even, heatproof carrier. In this step, we should pay more attention to the placement, because the grinding disc is formed by a temporary binder. If the grinding disc is relatively heavy, it needs to be transported by some transporting tools.
Firing
Firing is a very significant process that could influence its grade and quality. The firing process could enhance the ability to resist the heat and solvents encountered during grinding. The firing temperature is varied, depending on the type of bond. Take an instance, the wheels with vitrified bonds are fired to temperatures between 1700 and 2300 degrees Fahrenheit.

Tips for Extending the Life of Your Sanding Discs

Choose the Right Grit. Using the right grit can lead to efficient sanding and slower disc deterioration. Always start with the manufacturer’s recommendations for the material you’re working on. Use a coarser grit for initial sanding and switch to a finer grit for finishing.

Proper Installation. Improperly installed sanding discs can wobble or detach, causing uneven wear. Center the disc and securely attach it to the backing pad. Double-check for any signs of wobble before starting the machine.

Maintain Consistent Speed. Variable speeds cause inconsistent wear and may damage the sanding disc. Use a constant, moderate speed for a uniform finish and longer disc life. Consult the manufacturer’s guidelines for optimal speed settings.

Apply Even Pressure. Excessive pressure can cause the disc to wear out faster, resulting in an uneven finish. Apply consistent, moderate pressure while sanding. Let the abrasive do the work rather than forcing it into the material.

Keep It Clean. Dust and debris can clog the sanding disc. Use a rubber cleaning stick or compressed air to remove buildup from the disc periodically.

Store Properly. Improper storage results in moisture damage or warping of the sanding discs. Store your sanding discs in a cool, dry place away from direct sunlight. Please keep them in their original packaging to maintain their shape.

Regular Inspection. Regular checks can help you spot signs of wear or damage early, preventing potential accidents. Inspect the sanding disc for tears, cracks, or excessive wear before each use. Replace it immediately if you notice signs of damage.

How to Inspect Coated Abrasives for Damage?

You should always inspect your coated abrasives before working, while working, and when you are wrapping things up. Here are some tips on how to inspect coated abrasives for damage.

Look for Cracks: Check the surface of the abrasive for any noticeable cracks. Cracked abrasives can significantly speed up how quickly the abrasive breaks down and can cause harm or damage to equipment.

Check for Tears: Inspect the abrasive for any tears or holes. A damaged abrasive can leave scratches or marks on the workpiece, affecting the quality of the finished product. Abrasives like sanding belts can split while working if they have tears or holes in the belt.

Examine the Edges: Check the edges of the abrasive for any signs of fraying. A frayed edge can lead to the abrasive material coming loose and potentially causing injury, ruining the workpiece, or damaging equipment.

Our Certificate

Strict quality management and testing systems ensure that products comply with industry standards and export standards of European and American countries, providing high-quality products to global customers.

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Our Factory

The production workshop covers an area of 5,000 square meters and has multiple high-precision intelligent production lines with an annual output of 50 million pieces, which can efficiently complete your orders.

Common Problems of Abrasive Tools

Q: What is an abrasive disc?

A: Basically, an abrasive disc is composed of the abrasive material (natural or synthetic), a binding agent (what keeps the material stuck), and a base or support material. There is a huge variety of abrasive discs. The main differences are what the grains (abrasive) are made of, composition, targeted use, etc.

Q: What is a grinding disc used for?

A: Grinding discs are suitable for metal and stone applications across a range of machine sizes. The main use of such discs is in the removal of materials. However, they can also be used for the finishing and preparation of stone and metal surfaces.

Q: Is a disc cutter an abrasive wheel?

A: The term 'abrasive wheel' applies to the discs used on disc cutters and grinders, as well as the conventional grinding wheel and all other wheel types (including cup and saucer wheels).

Q: Is grinding disc a tool?

A: It is a very versatile tool, mostly used to remove paint, corrosion, and steel from flat surfaces and pipes on larger surface areas.

Q: What are the three types of abrasive?

A: The four types of abrasives include.
Natural Abrasives.
Synthetic Abrasives.
Bonded Abrasives.
Coated Abrasives.

Q: What is the difference between cutting disc and grinding disc?

A: What are the differences between a cutting, grinding or flap abrasive disc? The main difference between grinding, flap and cutting discs is that the first two are used to smooth surfaces, remove weld seams and grind edges; and the third to cut.

Q: What is sanding disc used for?

A: Sanding discs are circular abrasives whose purpose is to remove paint, materials, defects, rust, and corrosion from different surfaces. Sanding discs are attached to an electric-powered sander like an angle grinder or orbital sander. Sanding discs are available in two types: paper discs or film discs.

Q: Can a cutting disc be used for grinding?

A: Cutting-off wheels are thin by design and do not have adequate lateral strength for side grinding. The fiberglass reinforcement is in the wheel to add strength. Using the side of the wheel can damage the fiberglass. This reduces the strength of the wheel and can lead to breakage.

Q: Can I cut with a grinding disc?

A: Angle grinders (also called “disc grinders,” “right angle grinders,”or “side grinders”) are excellent tools for cutting both hard and soft metals. With the right grinding or cutting disc, they can perform various metal-related tasks, including cutting.

Q: What is the difference between a grinding wheel and a grinding disc?

A: One of the main differences between grinding discs and grinding wheels is their intended applications. Grinding discs are typically used for small or medium-sized grinding projects, while grinding wheels are best suited for larger, heavy-duty projects.

Q: How do I choose a grinding disc?

A: The material being ground.
The severity of the operation.
Required finish and form accuracy.
Area of contact.
Wheel speed.
Coolant use.
Machine/spindle horse power.

Q: What grinding disc to use for metal?

A: In general, you're better off using a flap disc when abrading metal and applying a smoother finish.

Q: Which disc to cut metal?

A: For standard everyday jobs on either stainless or mild steel using an angle grinder, choose a 1mm or 1.6mm thickness in your disc. For projects that involve thin metal such as sheet metal, choose a 1.0mm or 0.8mm thinner cutting disc.

Q: Can you cut Aluminium with a cutting disc?

A: Yes. Aluminium cutting discs have a special bond, grain mixture and abrasion-activated filling materials that significantly reduce clogging on cutting discs while helping to ensure a fast and reliable cut.

Q: Can you cut aluminum with a grinding disc?

A: An angle grinder works well for cutting aluminium, provided that a special cutting disc designated for aluminium is used. Abrasive discs (e.g. corundum and diamond discs) may turn out to be insufficient and even dangerous.

Q: When should you stop using a grinding disc?

A: Stop using the tool immediately if you notice excessive shaking or wobbling motions. Inspect the disc for signs of wear, such as cracks, chips, or uneven surfaces.

Q: What can happen if you grind aluminum with a steel grinding disc?

A: As when working with stainless steel, aluminum can be contaminated if there is product crossover with steel or the consumable being used has steel wire or the abrasive contains iron. Be sure to use abrasives marked as contaminant-free that are designed for aluminum.

Q: What angle must a grinding disc be when grinding?

A: The grinding wheels are produced as a type 27, which means that they have a flat surface and thus can achieve maximum efficiency when used at a working angle of 0-15°. They are therefore most effective when used on a flat surface.

Q: What is the most common grinder disc size?

A: Grinder's come in lots of different disc sizes, but the most common sizes are 115mm (4 ½”) and 230mm (9”). You can purchase different discs/heads/wheels depending on the task you want to complete - just make sure they're the right size for your grinder!

Q: What is the rpm of a grinding disc?

A: A medium-sized angle grinder is expected to go faster than 8,000 RPM, while a larger angle grinder may generate around 6,000 RPM.

Q: Are grinder discs universal?

A: Angle grinders discs are interchangeable, which means you can select the specific size of disc for your grinder and the specific type of disc for the type of material you are looking to cut or grind. There is a wide range of different types of discs available for an angle grinder.

Q: Can I use stainless cutting disc on steel?

A: They are stainless steel grade, so can be used on most ferrous metals including stainless steel, mild steel and cast iron.

Q: Can abrasive discs cut wood?

A: Angle grinders are fitted with abrasive wheels, not blades. These wheels operate by abrading the material they come into contact with. These wheels are not suitable for cutting wood: they have no teeth.

Q: How thick is a metal cutting disc?

A: These discs are commonly found in various thicknesses, including 1MM, 1.6MM, 1.9MM, 2.5MM & 3MM. In addition to these diameters, which are most commonly used on angle grinders, other larger diameter cutting discs are used on power tools such as chop saws or stihl saws.

Q: What is the best disc for cleaning metal?

A: Ceramic flap discs deliver the best results compared to all other grits, plus they are longer lasting and can be used on all metals including aluminium.

As one of the leading abrasive tools manufacturers and suppliers in China, we warmly welcome you to buy high-grade abrasive tools for sale here from our factory. All our products are with high quality and competitive price.

polishing buffer, 2 inch hook and loop sanding discs, 1500 grit sandpaper