Sun Joe AJ805E 15-Inch 13-Amp Electric Dethatcher and Scarifier w/Removeable 13.2-Gal Collection Bag, 5-Position Height Adjus

4.3 4.3 out of 5 stars | 19,224 ratings

Price: 199

Last update: 12-26-2024


About this item

[IDEAL]: For revitalizing small to mid-sized lawns.No Load Speed (rpm) 2990.Length of Cord (ft.) : 1, Deck Cleanout : No.
[POWERFUL]: 13-amp motor rakes a 15" wide path to get your job done faster
[SCARIFIER]: Function to cut grass roots for thicker growth, healthier lawns
[AIRBOOST TECHNOLOGY]: Spring steel tines for maximum thatch pickup
[MAINTENANCE FREE]: No gas, oil or tune-ups

Product information


Top reviews from the United States

  • vinnd
    5.0 out of 5 stars Great all round tool
    Reviewed in the United States on October 8, 2024
    This is a very easy piece of equipment to use and is extremely effective, even at this price point. Assembly was simple. The unit is all plastic and lightweight, and changing between the dethatcher and verti cutting blades is quick. This is not commercial grade, so don't expect deep grooves with the verti cutter. However for my reseeding of large areas of my lawn, the unit performed flawlessly, even with damp grass and soil. The dethatcher filled 1-and-a-half 30-gallon yard waste bags. This is a must for any lawn care enthusiast
  • CS
    5.0 out of 5 stars Buy This!
    Reviewed in the United States on July 17, 2018
    I wish I could give this 6 stars!

    When I put this together yesterday I was apprehensive. The handle felt cheap. It went together cheap. I know I can fix the handle if need be, but I don't much care for thinking about it when I'm putting together brand new things.

    Once everything was together, however, it felt ok.

    It came with the scarifier installed, so I had to switch that out. It would have saved me an extra trip to the tool room if I'd known it was a 10mm bolt. If it says so anywhere, I missed it. So keep a 10mm socket or wrench handy. Switching it out for the dethatcher was simple and easy.

    Now, my lawn isn't pretty. In fact, I've been fighting with it off and on for about a year now. It finally occurred to me it needs dethatching, so here we are. If it has ever been dethatched, it was a long, long time ago.

    Due to the current heat wave I had about 1 1/2 hours between melting and darkness to take care of business. After mowing the lawn I brought out the dethatcher.

    It's not self propelled, exactly, but it does tend to pull itself forward just by the way it operates. If my lawn were flat I would have had no trouble at all moving it around, however medium-ish dips and bumps would block its progress. I had to twist it a bit to get it to continue. Not really a big deal, and certainly not a problem with the design. Sure, you could maybe trim some of the plastic off the front to minimize this problem, but that would leave exposed quickly rotating pointy sharp things, which is a bad idea. Next time I'll carry a bucket of dirt with me and use this as an opportunity to even out the lawn somewhat.

    The instructions say to walk this forward and go over the lawn in an orderly, once-over type fashion. That's probably the best way to do it.

    For most folks.

    I, however, didn't have much time for such things, nor is my lawn orderly, either by condition or shape or anything.

    So at times I used this more like a vacuum cleaner.

    I also didn't use the bag. I followed the advice of other reviewers here and used my mower to clean up.

    A wise move.

    Mowing my front lawn typically fills my bin half way. After using this, and going over the lawn again with the mower, I nearly filled two bins.

    Maybe you won't have that problem. Maybe your lawn has been cared for properly. Mine hasn't.

    It's something to be aware of. Aside from the thought of emptying the dethatcher bag every 30 seconds, I've filled my green and trash bins, and that was with just my front yard. My back yard is over twice as big, so any more work of this nature is going to require trash bags or my neighbor's bins. If you have limited means of disposing or storing cut grass, you want to plan your lawn care schedule accordingly.

    Despite the instructions warning against going bagless, it worked fine. I didn't feel anything get thrown at me, but then I was wearing shoes and jeans. If you're doing your yard work in a Borat Mankini your mileage will vary...just please don't be my neighbor.

    One of the reasons I bought this over the other brands is the switch. The safety switch on the competition looked very awkward, and the reviews confirmed that. I'm not interested in awkward, and when it's too much of a hassle to operate the switch folks tend to leave the gear running rather than fight to turn it on again, which makes things LESS safe. It's like requiring a password that's so 'secure' and complex you pretty much have to write it down to remember it, making it less secure than requiring something simpler.

    This switch isn't terrible. In fact, I got used to it quickly, so I didn't have any problems.

    One huge pet peeve of mine is equipment that doesn't work for tall folks. I'm 6'4", and I can't tell you how many times I've had to stoop and slouch just to work with stuff designed for 'normal' people only. I was a little concerned about this.

    I didn't have to worry. No slouching or crouching was required. This makes me VERY happy!

    The height adjustment on this works wonderfully. It's simple, easy, and solid.

    Highly Recommend!
  • Frank McClung
    4.0 out of 5 stars Lives up to its reputation
    Reviewed in the United States on March 19, 2024
    3/4 of an acre on good ol' rocky top and this machine did its job both dethatching and scarifying. Nothing broke and it was easy to use. A couple of operating tips:
    1) you can use a hose to rinse off carefully
    2) make sure the attachment is fitted on one side with the half circle of the attachment end fitting in the half circle of the slot
    3) Grass bag kept falling off but I realized I was not snapping it into the slot hard enough each time I emptied it
    4) Bag fills up fast but it is a whole lot faster than raking. Keep a wheelbarrow nearby to dump your clippings or dump at the end of your row.
    5) If you are doing a complete yard renovation down to the dirt, rent a Billy Goat at Lowes. This machine is good for annual lawn maintenance and rejuvenation

    What could be improved:
    1) Foam handle grip is already starting to tear. It is too soft and not durable.
    2) Back wheels are too small. Plus dirt and grass get clogged into the little wheel well and is difficult to clean out.

    Overall, great purchase for the money. A must for a homeowner.
  • Michael W.
    5.0 out of 5 stars Does a good job - worth the extra money
    Reviewed in the United States on September 18, 2020
    So I started with the Greenworks dethatcher because it was cheaper, a neighbor said it was good enough, and others gave it great reviews. Had a problem with the assembly and availability issues led me to try the Sun Joe instead. While the SJ is a bit more money, the materials and design issue I had with the other unit were not an issue with the SJ.

    In both cases, I wish the machine had a on/off switch and then a deadman lever that I could hold with either/both hands (like a mower). Between futzing with the cord and such, I'd let go of the handle with my right hand. So I'd have to hold in the button and pull the trigger to get going. It'd be safer and easier to operate to have both hands on the handle and use a pull lever to engage the unit. Not a show stopper, but something to consider.

    This unit did a great job (!) chewing up the thatch and many others have offered nice reviews. Didn't have to run over anything twice or three times. So I won't discuss that. I will add that dethatching the whole yard was finished in maybe 30 minutes versus the raking I've done in the past (many hours). It also did a great job of pulling up thatch. In some places, perhaps too good of a job. I didn't use the scarifier.

    What remains a pain is cleaning up the thatch. The unit doesn't really save any time there. The bag that comes with the unit is awfully small. I'm not sure why they even bother with it.

    Some other reviewers mentioned running over the refuse with the mover. I found the mower gets filled pretty fast in the past when I raked the thatch. I tended to prefer the rake to a tarp method unless the thatch is really fluffy. The SJ got up even more material (esp. dried out moss), so the mower filled too fast. Worse, the mower made a LOT of dust in the air, making a mess along with some breathing concerns (fortunately it was breezy). And, the mower didn't do a good job of picking up bonus items like acorns. You have to set the mower somewhat lower than I like to use on the grass to pick up the detritus. So, the grass ended up being extra short, which is its own thing. So after a good test, I decided to bag the mower approach.

    Instead, I used a lawn sweeper that I got to avoid bending over to pick up leaves. It didn't have much more capacity than the mower, but it didn't create a huge dust storm. It also tended to pick up the twigs, acorns and other heavier items the mower whiffed on. It proved a better choice than the mower.

    My two cents...

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