I have seen somewhat similar topics across the board(Power Assist for Our Nascar Wagon, Electrifying a Kids Wagon, etc) but not sure if there is a kit already made to do this. I am looking to motorize a wagon truck, picture attached, and will be using it to bring hunting gear in and out of a forest with rough terrain. They do not allow ATV's so I was thinking of motorizing a cart to make life easier. I would like to eventually add a hitch on it and be able to pull an additional wagon or some type of cart. The wagon holds up to 1000 lbs but realistically with a deer I am thinking around 600 lbs. I have included below the specs of the cart itself. As far as speed the faster the better :) but not my primary concern as I do not think I would be going to fast. Reading some of your other responses I am excited to have found this site and look forward to hearing from you. Thanks again!
Wagon Truck1000 lb.49"Steel24"25"Pneumatic13"5"18Perforated48"22"16-3/8"32"Rubber
No worries at all - thank you for the response. How much would the go cart conversion kit cost for the back wheels? I was trying to determine what to do with the wheels to make it more shock absorbent. As for as the 36/48 volt gears that would require 3 or 4 batteries correct? Regarding the batteries , it might be cost prohibitive but what about ION batteries or any other source of energy. I just fear the 4 batteries at approx 30 lbs each would be 120 lbs added weight, also the amount of space they would take up might be space prohibitive? The run time would be at a minimum the amount it takes to walk into and out of the forest so could we realistically get an hour run time at walking speed. It really doesn't need to be fast that was more for my own wants for fun :).
Please let us know if you have any questions, and your thought on all of this and we will take it from there.
Ok thank you - if I were to do the three battery system + parts from you - approximately how much extra weight would that add to the cart?
Sorry for the late response and Thank you we just had to do some measurements - can you put a kit together using the 12 volts please. We will be taking it out in a couple months to test if it will actually work in the area we are in(before purchasing kit).
Here is what we want so far, please let me know if you need any more information from me for the kit. Thanks again!
Our 48 Volt 1000 Watt gear motor runs at 500 RPM under load and has a 10 tooth sprocket for #40, #41, and #420 chain. A 60 tooth axle sprocket for #40, #41, and #420 chain is a common and easy to find go kart sprocket.
For a one hour run time my calculator is recommending four 12 Volt 22 Ah batteries if the wagon is driven on flat terrain with some hills. However for driving in terrain that is mostly hills the calculator is recommending four 12 Volt 32 Ah batteries. Here are the calculations:
We carry 22 Ah batteries however we do not carry 32 Ah batteries so our 35 Ah batteries would need to be substituted for them.
Here are the battery dimensions and weights:
Before I can make a link for the kit and provide a price quote I will need to know what size batteries to include with the kit. I am not sure other than it being a forest what the terrain that the wagon will travel on is like.
It is always better to have too much battery capacity than not enough so the wagon does not run out of power before it gets home, however larger batteries and battery chargers cost more so getting the right size batteries for the project can help to save money on it.
What are your thoughts on the size of batteries that you would like included with the kit?
I am also interested in the cost of the above kit, except I only need Forward and would like to increase the run time to 2 hours if possible and I do not need my cart to be able to carry 600 lbs, 250 lbs is the most I would need.
Looking at the photo it appears that the gear ratio is too high. We do not know exactly how many teeth the sprockets you are using have so we estimated an 11 tooth motor sprocket and 28 tooth wheel sprocket which calculated to a 70 MPH top speed with a 20" wheel.
To lower the gear ratio a gear motor and a larger wheel sprocket are needed. Below is a gear ratio calculation for a 4 MPH top speed using our MOT-481000PL motor and an 80 tooth wheel sprocket.
Please let us know if you have any questions.
The gear ratio and top speed are only affected by the number of teeth on the sprockets and not by the chain size. Since both sprockets have to be for the same size chain, differences in chain size will not affect the calculation. We found that for a 4 MPH top speed a 68 tooth wheel sprocket would be ideal.
Please let us know if you have any questions.