lumberjack
Young man on the go
I've seen them for a few years, but only recently did I start looking (Saw them a '13 TCIA Expo). www.stumper3500.com
One of their pictures I've seen around.
I bought the smallest model, with an advertised gpm range from 10-15GPM, although that's conservative on both ends, more so on the high end. I picked it because it would be suitable for many machines I deal with, although its main carrier for my work is planned to be the excavator. It's also the right model to go on mini skids, most mini excavators, and Gehl/Avant loaders.
Its design is super simple, there's the mount, housing, motor and cutter wheel. The cutter wheel is similar the Sandvik (Revolution/Razor) system with the addition of blocks to act as rakers for the teeth for a smoother, controlled cut. All the hydraulic models will fit on all the hangers, so for example you could have a mini mount and excavator mount (attach your specific ears to their blank plate) and switch the attachment back and forth. I have all 3 hangers to play with (I did run it on my track loader for 4 stumps at my folks!)
My impression thus far is it's a solid design, production is dictated by the power you put to it. If you're used to high power self propelled grinders like I am, the performance is dismal with such low hydro hp from the excavator. However it will allow me to grind stumps that others can't, and those will bring a premium. Also I can take the attachment (300lbs maybe) with the excavator so on certain jobs I can grind while I'm there and not bring the dedicated grinder out on a second trip. For folks with a mini, it would allow them to grind stumps without having to invest in a dedicated grinder. My theory is the larger minis will out perform my excavator in hydraulic hp... I need to buy a flow meter and start testing (anyone have a couple grand I can have?
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Here's a video of the second stump I ground with the excavator mount. These stumps were underbid by me last summer, he gave the go ahead last month. I didn't appreciate how close the bricks were on the 3-4 sides and that makes grinding much more tedious. This job was $125 and took ~70 minutes of grinding for both stumps; this video only shows the second.
<iframe width="853" height="480" src="//www.youtube.com/embed/a5J80l78xH8" frameborder="0" allowfullscreen></iframe>
The second job was right in the wheel house of this attachment, although the ~22" oak stumps and roots took longer than I'm used to with my 83hp self propelled grinder! This job took 40 minutes including messing with the camera, 32 minutes of actual grinding time, 22 of that on the oak stump. This job was also $125 and was bid knowing this attachment was on the way.
<iframe width="853" height="480" src="//www.youtube.com/embed/BbOPcCp1q-Y" frameborder="0" allowfullscreen></iframe>
I hope to have video of it on a Boxer in the next couple weeks.
Then it comes to the almighty dollar. The mini skid mount costs the same as the excavator mount (which you weld/bolt your specific ears to), the full size skid steer mount costs $200 more. The smallest hydraulic, the 220 Low Flow Ex/Mini mount, lists for $4,495. The biggest hydraulic, the 280 High Flow Ex/Mini mount, lists for $7,095. The PTO version lists for 10,295. I can cover shipping inside the Continental US AND offer my usual forum discount of 2% on all models. If we get a group (2+) of folks buying at the same time, I can put together a group deal. If someone wants a bigger unit, there is also more room to work and I would love to get some video of the 3pt version working.
Depending on interest, I might buy another 220 low flow and possibly a 280 high flow to be a traveling rent to own type setup for forum members. The renter would be responsible for the shipping from wherever the unit is to themselves and back to me unless there is another person wanting it in which case it could go to them. Passing from member to member would be preferred to cut down on the shipping. Rent would be weekly at the shortest, and rent time would exclude shipping time. If the person decides to purchase, a percentage of the rent paid would go directly towards the purchase price. They would have the option to buy the rental unit at a discounted price, or return it and have a new unit shipped down at standard pricing. There are some details to work out, but that's a general idea of what I'm thinking.
One of their pictures I've seen around.
I bought the smallest model, with an advertised gpm range from 10-15GPM, although that's conservative on both ends, more so on the high end. I picked it because it would be suitable for many machines I deal with, although its main carrier for my work is planned to be the excavator. It's also the right model to go on mini skids, most mini excavators, and Gehl/Avant loaders.
Its design is super simple, there's the mount, housing, motor and cutter wheel. The cutter wheel is similar the Sandvik (Revolution/Razor) system with the addition of blocks to act as rakers for the teeth for a smoother, controlled cut. All the hydraulic models will fit on all the hangers, so for example you could have a mini mount and excavator mount (attach your specific ears to their blank plate) and switch the attachment back and forth. I have all 3 hangers to play with (I did run it on my track loader for 4 stumps at my folks!)
My impression thus far is it's a solid design, production is dictated by the power you put to it. If you're used to high power self propelled grinders like I am, the performance is dismal with such low hydro hp from the excavator. However it will allow me to grind stumps that others can't, and those will bring a premium. Also I can take the attachment (300lbs maybe) with the excavator so on certain jobs I can grind while I'm there and not bring the dedicated grinder out on a second trip. For folks with a mini, it would allow them to grind stumps without having to invest in a dedicated grinder. My theory is the larger minis will out perform my excavator in hydraulic hp... I need to buy a flow meter and start testing (anyone have a couple grand I can have?
)Here's a video of the second stump I ground with the excavator mount. These stumps were underbid by me last summer, he gave the go ahead last month. I didn't appreciate how close the bricks were on the 3-4 sides and that makes grinding much more tedious. This job was $125 and took ~70 minutes of grinding for both stumps; this video only shows the second.
<iframe width="853" height="480" src="//www.youtube.com/embed/a5J80l78xH8" frameborder="0" allowfullscreen></iframe>
The second job was right in the wheel house of this attachment, although the ~22" oak stumps and roots took longer than I'm used to with my 83hp self propelled grinder! This job took 40 minutes including messing with the camera, 32 minutes of actual grinding time, 22 of that on the oak stump. This job was also $125 and was bid knowing this attachment was on the way.
<iframe width="853" height="480" src="//www.youtube.com/embed/BbOPcCp1q-Y" frameborder="0" allowfullscreen></iframe>
I hope to have video of it on a Boxer in the next couple weeks.
Then it comes to the almighty dollar. The mini skid mount costs the same as the excavator mount (which you weld/bolt your specific ears to), the full size skid steer mount costs $200 more. The smallest hydraulic, the 220 Low Flow Ex/Mini mount, lists for $4,495. The biggest hydraulic, the 280 High Flow Ex/Mini mount, lists for $7,095. The PTO version lists for 10,295. I can cover shipping inside the Continental US AND offer my usual forum discount of 2% on all models. If we get a group (2+) of folks buying at the same time, I can put together a group deal. If someone wants a bigger unit, there is also more room to work and I would love to get some video of the 3pt version working.
Depending on interest, I might buy another 220 low flow and possibly a 280 high flow to be a traveling rent to own type setup for forum members. The renter would be responsible for the shipping from wherever the unit is to themselves and back to me unless there is another person wanting it in which case it could go to them. Passing from member to member would be preferred to cut down on the shipping. Rent would be weekly at the shortest, and rent time would exclude shipping time. If the person decides to purchase, a percentage of the rent paid would go directly towards the purchase price. They would have the option to buy the rental unit at a discounted price, or return it and have a new unit shipped down at standard pricing. There are some details to work out, but that's a general idea of what I'm thinking.
