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10 Best 3 X 21 Belt Sander (2023 Updated)

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When looking for a 3 x 21 belt sander, there are several key points to consider. First, you should think about what type of material you'll be sanding and make sure that the sander is suitable for that material. Second, consider the size of the belt and the speed of the sander. Third, look at the power of the sander and make sure it is suitable for the job you want to do. Fourth, check the weight of the sander and make sure it is comfortable for you to use. Lastly, make sure the sander has the necessary safety features and that it meets any national safety standards.

These are all important factors to consider when selecting a 3 x 21 belt sander. To make sure you get the right tool for the job, it's a good idea to read reviews and talk to other professionals who have used similar sanders. Doing a bit of research beforehand will help you find the right sander for your needs. Additionally, make sure to read the manufacturer's instructions carefully before using the sander and follow all safety guidelines. With a bit of research and care, you can find the perfect 3 x 21 belt sander for your needs.

10 Best 3 X 21 Belt Sander

1. Makita 9903 3" X 21" Belt Sander

The Makita 9903 3" x 21" Belt Sander is a powerful and reliable tool for all kinds of sanding jobs. With its 8.8 AMP motor, it provides plenty of power with only 85dB of noise, making it ideal for those who don't want to deal with a loud tool.

The variable speed control dial lets you adjust the speed from 690 to 1,440 ft./min., so you can match it perfectly to the application. This makes it great for delicate tasks, as well as more demanding ones. The auto-tracking belt system tracks the belt without the need for any manual adjustments, saving you time and effort.

The Makita 9903 has an innovative design that allows it to sand flush to the wall with the nose and sides of the sander. This makes it easier to sand those hard to reach corners. The front grip design ensures a comfortable grip, so you can work for longer periods of time without straining your hands.

The Makita 9903 3" x 21" Belt Sander is a great tool for any sanding job. Its versatile speed control, auto-tracking system, and ergonomic design make it a great choice for both professionals and DIYers. With its powerful motor and low noise level, you can get the job done quickly and quietly.

2. Wen 6321 7-Amp 3 In. X 21 In. Corded Belt Sander With Dust Bag , Black

The WEN 6321 7-Amp 3 in. x 21 in. Corded Belt Sander with Dust Bag is the perfect tool for any job. With a powerful 7-amp motor, it can rotate the belt at over 13 feet per second, making sanding quick and efficient. Its compact design weighs in at only six pounds, reducing user fatigue and making it easier to handle. An included dust bag makes clean-up less of a hassle, and its lock-in safety feature allows for continuous sanding without needing to keep a grip on the trigger.

The WEN 6321 is a great addition to any workshop. Its slim profile makes it easy to store in tight spaces and its small size makes it ideal for detailed work. It features a rugged construction with an adjustable belt tracking knob and a dust sealed switch that helps protect the internal components from debris. The included sanding belt is designed to last and can be replaced quickly and easily.

When it comes to quality, the WEN 6321 is hard to beat. This corded belt sander is backed by a two-year warranty and a nationwide network of skilled technicians. Customers can rest assured that they are getting a reliable tool that is built to last.

Whether you’re a professional or a DIYer, the WEN 6321 7-Amp 3 in. x 21 in. Corded Belt Sander with Dust Bag is an excellent choice. With its powerful motor, compact design, and adjustable features, it is an ideal tool for any job. And with its two-year warranty and nationwide tech support, you can be sure that your WEN 6321 will keep running for years to come.

3. Triton Ta1200bs Belt Sander 3-Inch By 21-Inch,black

The Triton TA1200BS Belt Sander is a powerful and efficient power tool designed to help you with all your sanding needs. The 10-Amp motor and variable speed control allows you to adjust the speed of the sander to match the material and the job you’re trying to accomplish. The adjustable auxiliary handle, lock-on button and belt tracking adjustment make it easy and comfortable to use, giving you maximum control and accuracy.

The TA1200BS also comes with an impressive dust collection system. It includes a side dust port so you can connect it to a vacuum system, or you can use the included dust bag to keep the area clean and minimize the amount of dust created. For added convenience, the inversion clamps make it easy to flip the belt over and re-use the same side for even wear.

Whether you’re sanding furniture, cabinets, or trim, the Triton TA1200BS Belt Sander is an excellent choice. It’s easy to use and offers a powerful motor, adjustable features, and dust collection system. The included 3-Inch by 21-Inch sanding belt is perfect for most projects and the variable speed control allows you to customize your sanding speed to match the material and job at hand. With its powerful motor, adjustable features, and dust collection system, the Triton TA1200BS Belt Sander is an ideal choice for all your sanding needs.

4. Metabo Hpt 3"x21" Belt Sander, Variable Speed 9.0a Motor, Soft Grip, 5-Year Warranty.

The Metabo HPT Belt Sander is a powerful and versatile tool for any woodworking job. This sander is equipped with a 9 amp 1,020 watt motor that can handle even the toughest sanding jobs. The variable speed dial at the base of the handle allows for improved manageability and different applications. The sander also comes with a clear front cover to improve visibility when sanding up against a surface.

The dust collection bag of the Metabo HPT Belt Sander is located on the left side and helps reduce airborne particles, keeping your work area clean. This sander also features a flush surface design for quick and even sanding. The sander is made to last with a professional five-year limited warranty, giving you peace of mind.

The Metabo HPT Belt Sander is the perfect tool for any woodworking project. The powerful motor and variable speed dial give you maximum control over your sanding job. The dust collection bag helps keep your work area clean, while the flush surface design allows for even and efficient sanding. The sander also comes with a professional five-year limited warranty, ensuring it will last you a long time.

5. Black+decker Belt Sander With Dust Bag, 7-Amp, 3-Inch By 21-Inch (Ds321)

The BLACK+DECKER DS321 Belt Sander offers powerful motorized performance with a 7.0 AMP motor that delivers maximum power for maximum performance. It features an angled belt design with a 3 inch x 21 inch sanding belt that sands 3x closer to the edge of adjoining surfaces for professional results. The comfortable adjustable handle can be adjusted to three positions to keep you comfortable and reduce muscle fatigue. Additionally, the flush, low-profile design provides an extended reach for enhanced functionality and allows for sanding vertical surfaces.

The DS321 also features a retractable hood to expose the top of the sanding belt for versatile operation, even in tight spaces. An easy-empty dust bag allows for convenient on-board dust collection to keep your work area cleaner and improve visibility of the worksurface. The corded design offers unlimited runtime for even the biggest jobs.

This Belt Sander also comes with an innovative front roller that allows you to reach even the tightest corners with ease. The dust collector keeps the work area clean for improved visibility. For safety and security, please refer to the available user manual below. This sander is lightweight and easy to use, weighing only 8.2 pounds and measuring 15.4 x 6.2 x 6.1 inches (WxHxD). It also comes with a medium grit sanding belt, dust bag, and instruction manual. It is protected by a 2-year warranty.

6. Craftsman Belt Sander, 3-Inch X 21-Inch (Cmew213)

The CRAFTSMAN Belt Sander is a powerful and versatile tool that offers quick and easy belt changes. With a 7.0 amp motor and a 21-inch belt size, this sander can tackle tough jobs with ease. The angled belt design allows users to sand closer to adjoining surfaces with more accuracy.

The CRAFTSMAN Belt Sander also features a maximum speed of 800 FPM, allowing users to quickly remove material. To make belt changes even faster and easier, this sander is equipped with a tool-free belt release. With its high performance dust collection system and onboard dust bag, users can work with less mess and less hassle.

When doing long projects, user comfort is key. That's why this CRAFTSMAN Belt Sander is designed with a 3-position over molded handle, allowing users to adjust the handle for maximum comfort. To make storage and organization even easier, this sander is also compatible with the VERSATRACK Wall Organization System (hooks and accessories sold separately).

For peace of mind, the CRAFTSMAN Belt Sander is backed by a 3 Year Limited Warranty. This warranty covers defects in material and workmanship, providing users with the assurance that their CRAFTSMAN Belt Sander will perform as expected.

7. 3"x21" Alum. Oxide Sanding Belt 15pk – 80/120/150/240/400 Grits For Wood/metal/paint

These Novernat Sanding Belts are the perfect tool for sanding wood, metal, and paint. Each set contains 15 pieces of 3" x 21" (75mmx533mm) belt sander paper in five different grits: 80/120/150/240/400. The tape joint eliminates the bulge at the splicing and makes the connection more secure. The sandpaper is made of X-Weight clothed backing, high quality aluminum oxide particles, and a superior quality formulation designed for fast material removal and long-lasting sanding life. The stearate coating reduces pitch build-up and clogging for maximum productivity.

These sanding belts are suitable for all types of 3 x 21-inch belt sanders and polishing machines. The versatile design allows them to be used on various materials such as wood, aluminum, metal, glass, plastic, and stone. The durable and long-lasting construction ensures that these sanding belts will stand up to the toughest tasks.

Whether you're a professional or a DIYer, these Novernat Sanding Belts are the perfect choice for sanding and polishing applications. They provide superior performance, ensuring a smooth finish and maximum efficiency. The high-quality construction and easy-to-use design make these sanding belts a must-have for any toolbox. With their versatility and long-lasting performance, these sanding belts are an excellent choice for any project.

8. Makita 9031 1-1/8" X 21" Belt Sander

The Makita 9031 1-1/8" x 21" Belt Sander is the ideal tool for many different applications. It is versatile enough to be used on a variety of materials, including wood, metal, and fiberglass. Woodworkers, artists, glaziers, welders, prefinished cabinet installers, and finish carpenters will all benefit from its features.

A great feature of this sander is the narrow belt and exposed front pulley which allows it to be used in close quarters or on irregular shapes. The variable speed control dial enables the user to match the speed to the application, ranging from 656-3,280 ft./min. For extended use, the lock-on button allows for continuous operation.

The Makita 9031 1-1/8" x 21" Belt Sander is an extremely useful tool for a wide variety of applications. It is lightweight and easy to use, and the variable speed control and lock-on button make it the perfect sander for those needing to get the job done quickly and efficiently. Whether you are a professional craftsman or an amateur DIY enthusiast, this sander is sure to be a great addition to your workshop.

9. 7amp Belt Sander With Dust Bag, Variable-Speed, Vacuum Adapter, 10ft Cable – Bs750-Sd

The Jellas 3 × 21-Inch Belt Sander with Dust Bag is the ideal tool for a variety of woodworking projects. Powered by a 7Amp motor, this machine offers variable speed control ranging from 120-400rpm for a precise finish. It features a 2 in 1 function, allowing it to be used as both a bench and belt sander. This versatility makes it suitable for a range of tasks.

The sander also comes with 10 pieces of sanding belts, including 2 pieces each of 40, 60, 80, 120 and 180 grit aluminum oxide sanding belts. These will help you to save money and complete any project.

The dust bag that comes with the sander is detachable, so it can be easily installed and removed for easy cleaning. It also has exhaust holes, which prevent dust from entering the motor and helps to protect the life of the motor.

When installing the sand belt, make sure the arrow on the belt is in the same direction as the arrow on the machine. This will help to increase the life of the belt and ensure that it does not leave scratches on the board.

The Jellas 3 × 21-Inch Belt Sander with Dust Bag is a reliable and powerful tool for any woodworking project. It comes with a 2 year customer support, so you can be confident that your sander will be covered if you have any issues.

10. 3×21" Alum. Oxide Sanding Belt Kit (18 Pcs: 60, 80, 120, 150, 240, 400 Grits)

The M-jump 18 PCS 3 x 21 inch Aluminum Oxide Sanding Belt Kit provides a wide range of grits to handle a variety of woodworking, metalworking and other projects. This kit includes 3 each of 60, 80, 120, 150, 240 and 400 grits, giving you the flexibility to tackle a wide range of sanding tasks.

Made with premium Aluminum Oxide grain, these sanding belts are perfect for use on wood, aluminum, non-ferrous metals, glass, plastic and stone. The antistatic and washable, plus an additive in the resin to resist loading, make this sanding belt kit highly durable and long lasting.

The assortment of grits in this sanding belt kit offers flexibility to tackle a wide range of sanding tasks. The 60 grit belt is perfect for removing material quickly and for rough sanding. The 80 grit belt is ideal for general purpose sanding, preparing for painting and for removing rust. The 120, 150 and 240 grit belts are perfect for smoothing and finishing the surface of wood. The 400 grit belt is perfect for creating a super smooth finish.

This sanding belt kit is ideal for use with a portable belt sander and is perfect for woodworkers, metalworkers and other professionals who need to sand a variety of materials. Other grit sanding belts are available for sale in the M-jump store, allowing you to customize your grits for your specific project. Whether you are tackling a DIY project or an industrial task, the M-jump 18 PCS 3 x 21 inch Aluminum Oxide Sanding Belt Kit has the grits you need to get the job done.

Best 3 X 21 Belt Sander FAQs

How do you size a belt sander belt?

To size a belt sander belt, you will need to measure the width, length, and diameter of the sander's drive wheel. You will also need to measure the length of the drive belt itself. The drive belt should be slightly shorter than the distance between the two pulleys. The proper belt size should be printed on the sander itself or in the user manual. If you cannot find the size, you can use a belt size calculator or refer to the manufacturer's website for the correct belt size. Additionally, you can measure the contact area of the belt on the drive wheel, and match it to a belt with the same size. Make sure to use a belt that is compatible with your sander and is the right length and width to fit correctly.

What are the disadvantages of a belt sander?

The main disadvantage of using a belt sander is that it can be difficult to control and can create too much pressure on the material being sanded, leading to unintentional grooves or scratches. Due to its large size, it can also be difficult to maneuver in tight spaces. Additionally, the dust created by a belt sander can be difficult to contain, leading to a messy work area.

Another disadvantage is that belt sanders can cause material to heat up if the sander is applied for too long in one area. This can lead to burning or discoloration of the material. Finally, belt sanders are more expensive than other types of sanders, making them less accessible to hobbyists or those on a budget.

What is the difference between a belt sander and a belt grinder?

A belt sander is an electric sanding tool that uses a looped belt of abrasive material to rapidly remove material from a surface. It is most commonly used for rough sanding of wood and metal surfaces. Belt sanders are typically used to shape and smooth wood and other materials, as well as to remove paint or varnish from them.

A belt grinder, also known as a belt sander, is a machine used to grind down and shape hard materials. Unlike a belt sander, which is designed for light material removal, a belt grinder is designed for heavy-duty material removal. It features a high-powered motor and a large grinding wheel that rotates at a high speed, allowing the user to quickly and efficiently remove material. The belt grinder is often used in metalworking and woodworking applications, as well as in the production of knives and other cutting tools.

What is the most common belt size for a belt sander?

The most common size belt for a belt sander is usually either 1/2 inch or 3/4 inch. It is important to check the size of the belt that is compatible with the sander before purchasing to ensure a proper fit. Additionally, the length of the belt should also be considered when purchasing a sander. Belts typically come in 18 inch, 24 inch, and 36 inch lengths, with the longer lengths being the most common. When it comes to grits, belts are typically available in coarse, medium, and fine grits. Coarse grits are best for removing material quickly and shaping wood, while medium and fine grits are better for smoothing and polishing.

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