Tool reviews are often written based upon an experience with a brand new tool just pulled out of the box. In this case, however, I am writing about a tool that has been put through extreme paces for about a year, as my father and I use it extensively in his woodworking business. You have also seen this sander in action here on WWGOA as well, as we built a wine bottle holder and a spatula in earlier projects. The Ridgid EB4424, $329, serves as an oscillating spindle sander and doubles as an oscillating edge belt sander with a quick changeover. This is the only tool I am aware of that offers both functions. Decent spindle sanders start at about $150, and oscillating belt sanders don’t even exist in the hobbyist market aside from this one (industrial versions start at over $900), so needless to say, I was skeptical that this product would deliver any respectable level of performance or durability for $329.
The package includes everything you need to start, including abrasives for both belt and spindle sanding operations. Setup is straightforward and quick; pop the padded feet on, attach either the spindle or belt mechanism with your choice of abrasive, and you are all set.
Belt sanding assembly. The sanding belt assembly features a simple design and solid construction. The belts are a standard 4 x 24″, making it easy to find and afford replacement abrasives. The oscillating action makes this design unique in its class.
Spindle sanding gear. The sanding drums and sleeves for spindle sanding operations are also high quality. Drum and sanding sleeve sizes include 3/4″, 1″, 1-1/2″, and 2″. The kit also includes a 1/2″ sanding sleeve, which can be installed directly onto the machine’s spindle without using a rubber drum.
Ready to go right out of the box. My initial impression was that, at roughly 40 pounds, this machine is substantial for a benchtop unit. I like some mass in a machine of this nature because the weight provides stability, enabling better performance. Everything was high quality and solid, with an impressive fit and finish. I checked to ensure that the sanding belt was square to the table, and it was perfect. I also checked a spindle, which was also square to the table.
When to spindle and when to belt? Roughly 98% of the time, I leave this tool set up as an edge belt sander. The flexibility provided by this unique design is truly remarkable. First, the unique tapered design provides three different sanding capabilities. You have the equivalent of a sanding drum or spindle on each end. On one end is a large radius spindle of 3″, and on the other is a smaller spindle of 1-1/2″. Then, the flat portion of the assembly allows the sanding of flat or convex curved surfaces. Plus, having the belt oscillate in the same fashion as the spindle sander reduces the sanding marks left behind, yielding a surface requiring much less work than nonoscillating edge sanders. This is a tremendous innovation for the hobbyist market.
Spindle sanding. The only time I experience the need to switch to the proper spindle sanding implements is for extremely tight curves, requiring one of the smaller spindles, or for sanding an enclosed area that is too small for the belt.
This Tool has Numerous Strengths:
POWER, POWER, POWER! I was thoroughly impressed by the performance of a tool at this price point.
The machine delivers chatter-free performance and powers through stock at a voracious clip.
Large work surface. A generous 19″ x 24″ work surface provides sufficient support as you guide material past the sanding elements. While amply large, at the same time, it does not consume an unfair portion of bench space, which suggests a thoughtful design for a bench top tool.
Quality. Everything about this machine (except for the table finish described below) is of extremely high quality. After a year of heavy use, nothing has broken or worn excessively. Everything still feels solid and operates smoothly.
On board storage. Everything that you need for this tool, including all sanding implements for both belt and spindle operations, is stored neatly on the tool itself in a clever design. That means nothing gets relegated to the shop’s “junk drawer,” effectively the same as throwing something away because sometimes I think it may be faster to order a new part online than to find something in there.
Effective tracking adjustment. I found the tracking adjustment on the belt sander to work quite well. It was straightforward to get the tracking dialed in so that the belt rode where it was supposed to, and once it was set, it rarely needed to be tweaked until a belt was changed. This works much more reliably than the tracking adjustments on my handheld belt sanders.
Dust extraction. In general, oscillating sanders produce a large volume of dust which is challenging to capture. The dust collection on this unit is quite effective when coupled with an adequate shop vacuum or dust collector and superior to the dust collection capabilities of the most spindle or edge belt sanders.
Quick change artist. I was impressed at how quick and intuitive the process is to change the tool over from a spindle sander to an edge belt sander. The changeover requires no tools. You remove a single knob, swap the belt assembly for a sanding drum, or vice versa, and you are back in business. Kudus to the Ridgid design team on this. The only way a multi-purpose tool can earn a footprint in my shop is for the changeover process to be quick and hassle-free, which hits the mark.
Tilting table. The table tilts from 0-48 degrees to provide proper sanding on tapered edge cuts, with convenience stops for common angles at 0, 15, 22.5, 30, and 45 degrees.
Downsides. Poor table finish. After a year of regular use, the finish on the table has worn through badly. The finish is not of a grade suitable for an item that receives this much wear and needs to be consistent with the high quality of all other aspects of this tool. I imagine that a regular application of paste wax would probably help to minimize the wear, but I don’t do this, as the wear doesn’t disrupt my serenity that much.
Chintzy spindle sanding insert. Part of the process of changing from belt sanding to spindle sanding requires installing an insert to cover the opening left when the sanding belt assembly is removed and replaced with the smaller spindle sanding drum. The concept is simple, and the insert does the job, but it is made of lightweight plastic, and I am concerned that this highly exposed item will wear or crack over time. Since I use this tool almost exclusively as an edge belt sander, the insert rarely gets used in my shop, so it should not be an issue. But if I frequently changed from belt sanding to spindle sanding or performed spindle sanding extensively, I would be apprehensive about this component.
Recommendations. Ridgid must have a team of highly effective intellectual property attorneys, or every tool manufacturer in the industry would copy this tool. I am not a fan of multi-purpose tools, but I have been delighted with this tool. While I mainly use it as an edge belt sander, it is a snap to changeover for spindle sanding operations and works equally well in that mode. This tool is ideal for removing marks left behind by power-cutting means, mainly the band saw, or jig saw. It offers plenty of muscle for the hobbyist or small professional shop, and the innovative design makes this tool a bargain at $329. One additional suggestion; this machine generates a lot of dust quickly, as it should, so be sure to configure adequate dust collection at the source to minimize the adverse effects on your health and your tools.
Photos By Author
Ridgid EB4424 Oscillating Edge Belt / Spindle Sander, $329