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Model #8620B

150 lbs. Tow Behind Spreader with Auto-Stop

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Product Overview

No more reaching back for levers and controls to stop seed and fertilizers from spilling off the impeller when you stop. Chapin unique dual impeller design allows material to spread when spreader and vehicle are in motion. When you stop moving, its stops spreading. No more burnt lawns and wasted product.
  • Auto-stop dual impeller stops spreading when not in motion
  • Oil impregnated bronze bearings minimize friction on axle and gear box
  • Easy-to-set gate adjustment with 11 incremental settings for accurate application
  • Wide tread 14 pneumatic tires
  • Gearbox with oil impregnated bronze bearings and grease fitting
  • Heavy-duty trailer hitch designed for professional use
  • Not for use with lime products such as pelletized lime, lime powder and Agri lime
  • California residents

150 lbs. Tow Behind Spreader with Auto-Stop

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Spreader typeBroadcastBroadcastBroadcastBroadcast
Spread width (in.)12012014472
Spreader Usage TypeFertilizer,Grass Seed,Ice Melt,Pesticide,Weed KillerFertilizer,Garden Soil,Grass Seed,Pesticide,Repellent,Sand,Topsoil,Weed KillerFertilizer,Grass Seed,Ice MeltGarden Soil,Sand
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Product Depth (in.)
36 in
Product Height (in.)
36 in
Product Length (in.)
26 in
Product Width (in.)
26 in
Spread width (in.)


Applicator type
Applicator Part/Accessory
Load Weight Capacity (lb)
150 lb
Pneumatic Tires
Product Weight (lb.)
Spreader type
Spreader Usage Type
Fertilizer,Garden Soil,Grass Seed,Pesticide,Repellent,Sand,Topsoil,Weed Killer

Warranty / Certifications

Manufacturer Warranty
Limited Lifetime

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4
    out of 113 reviews
  • 72% recommend this product
Filter by:
Showing 1-10 of 113 reviews
Tips over too easy on the slightest incline
Great seeder compared to the rest but the axle width needs to be extended to give it more stability when half-full of heavy fertilizer and used on the slightest incline. This thing started falling over when I turned around at a slow speed on level ground. Twisted the top hitch plate to a 90 degree angle on the hitch pin. Bought it from a guy in the box that had two and he warned me that they will tip over was his only complaint. Talk about burning your lawn!
by scoham
    I bought this last summer and only got to use it once last summer but used it twice this summer. From right out of the brand-new box it was very stiff to make it rotate to throw out the fertilizer. I thought it would loosen up over time but it didn't. When the hopper got low like half a sack of fertilizer it would just drag the drive wheel. I thought initially it would be the little transmission but it wasn't the friction occurred just above the impeller that slings the material around the yard. Taking it apart I could see no way to get the pieces apart that you see in the picture to try to solve the problem. If it had worked properly I would've liked this spreader but as it is I certainly can't recommend it. I'm going to call tomorrow and see if the parts are available and if the cost doesn't exceed the practicality of fixing it. So if you happen to buy one and it seems stiff in terms of getting the rotor to sling the material send it back immediately.
    by Allen
    Response from Chapin Customer ServiceOct 30, 2020
    Hi, we are sorry you have experienced a problem with your 8620B 150-Pound Tow Behind Spreader. If you give Chapin Customer Service a call at 800-444-3140 and reference this review, they will assist you with troubleshooting your spreader to get this issue resolved. If necessary, replacement parts can be expedited to you depending on the outcome of the troubleshooting. Thank you for your comments and for your business, we appreciate it.
      Not difficult to assemble. Works pretty good, but the wheels don't turn until you get up to a cer...
      Not difficult to assemble. Works pretty good, but the wheels don't turn until you get up to a certain speed and will skid across the turf until then. Takes a little getting used to but after that seems ok.I like the 10 seed settings and the chart inside owners manual to guide you. Perfect for my 3 acres
      by Jason B
      • Verified Purchase
      • Recommended Product
      2 people found this helpful
      Worked great, used it to spread over 700 pounds of fertilizer. Used a Lawn Tractor to spread with...
      Worked great, used it to spread over 700 pounds of fertilizer. Used a Lawn Tractor to spread with on semi rough cutipacked plowed ground. Seamed to have uniformed spread and consistent. Set at the 6 setting and covered 275 yards long of ground per 100 pounds.
      by Blaineman
      • Verified Purchase
      • Recommended Product
      1 person found this helpful
      Works very well, I tow it behind my exmark and...
      Works very well, I tow it behind my exmark and would buy it again.
      by RICHARD
        Nice tow behind spreader
        The spreader works as expected. It is nice that it stops dropping fertilizer when you stop.
        by JPrati
        • Verified Purchase
        • Recommended Product
        Chaplin auto stop spreader
        Did a pretty good job as long as the feed tube didn’t plug up. Had to bang on that black thing under hopper to get it freed up. Clogged up 3 times on each hopper full. I had 100 lbs fertilizer in each hopper fill. Is there a better way to unclog this thing or stop it from clogging to begin with. Over time banging on that black thing will eventually break it.
        by Bobjd445
        Response from Product SupportSep 20, 2021
        Hi. Our goal is to have satisfied customers. Please give our Product Support team a call at 1-800-444-3140, option 1, and reference this review for the Chapin 8620B: 150-Pound Tow Behind Spreader and we can help get this issue resolved. Thank you for your honest feedback.
          Five stars rating it is as good as gold....
          Five stars rating it is as good as gold.
          by HomeDepotCustomer
          • Verified Purchase
          Great, in theory.
          This is a nice spreader at first glance, but doesn't work well in real life. I've now used it twice, with a full cleaning in-between, and have been completely frustrated. Several things: 1. When full, it is heavy enough to turn the tires, which turns the spinner and lets fertilizer out to be thrown. When going fast, I suppose it can throw a fairly wide path -- maybe 6-8 feet, to allow feathered, overlapping rows . But at a more prudent, moderate speed, the path is about 5 feet wide, with more of a stripe pattern. Not a deal breaker, but it would be great if it was geared up to spread widely at a slower speed -- say a normal grass-cutting speed. 2. At under about 2/3d full, the wheels will start sliding rather than turning, meaning no spreading. This result applies regardless of tire pressure. Maybe if the tires had knobby treads, or an "ag tire" tread, it would bite into the grass/ground better, but the lightly treaded tires just won't turn. I've been trying to figure out a way to hang more weights on it, but it would need about 2 cement blocks worth of weight to make a difference -- and I haven't figured out how to do that. Maybe there's a way to fill the tires with liquid (like tractor tires) for traction, but again, I haven't figured out how to do that either. 3. It is quite top-heavy when full, with a fairly narrow wheelbase. Thus, pulling on any slope over about 5% (or even U-turning to go up/down a slope), will result in the spreader tipping over. I am trying to figure out how to add wheelbase extensions, but no obvious solution yet. Also, because the right wheel turns the spreader mechanism, if the right wheel is on the "high side" of the slope it will lose traction even at/above 2/3 full. 4. That said, it does clean easily, and seems to be made of sturdy plastic. The cover has an elastic strap that will keep fertilizer in the hopper (or at least off the ground) if it tries to flip over on a hill (ultimately the hitch plate will stop the complete turning over, but at the price of bending those pieces).
          by Eston
            Rating provided by a verified purchaser...
            Rating provided by a verified purchaser
            by HomeDepotCustomer
            • Verified Purchase
            Showing 1-10 of 113 reviews