Double Potting Machine – 1.75 Cubic Yard

Item #SPGGD1.5YM




  • Load with a tractor, skid steer or conveyor from rear
  • One or two people can operate independently
  • Load from the front or rear of machine
  • Automatic material return
  • Simple mechanical lever to change output
  • Easy to move
This unit has a leadtime after order.

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Ships from:  Thomson, GA

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From the manufacturer


STILT PRO - Made Tough

Your go manufacturer for specialized agricultural equipment

STILT.PRO was founded by Tom Knuth in 2018 with the mission to provide their customers in the wholesale nursery industry with Simple products and solutions that employ appropriate AgTechnology and are designed and MadeTough.  Since then, STILT.PRO has been working hard to understand the needs of their customers, grow relationships, and identify and work with growers to solve their problems in a collaborative manner.

  • Automatic soil return
  • Compact and portable design
  • DUAL or SINGLE operator system
  • Load from the front or rear of machine

Product information

Potting Machine Specifications

Warranty & Support

Product Warranty:  Info here


Videos for this product


Contact Info
(218) 343 – 2650

261 Quality Drive
Thomson, GA 30824

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Soil and Substrate Mixer | The Ground Grinder Double

1 yard soil mixer

The STILT.PRO Batch Soil Mixer will time and time again let you uniformly blend your custom mixes and can handle typical potting soil mixes.  Use common growing materials like PBH rice hulls, peat, bark, sand, fertilizers and chemicals as needed.  The mixer blender is a modified ribbon blender that forces material to continuously turn over for proper blending and preps material for usage.  The machine then lifts the material up and dispenses it on the container.  No need to load material overhead or lift material off the floor.  The unit can be loaded with material at waste height and you can then fill your containers or flats at the same comfortable operating level.

Use this soil mixing machine as a peat fluffer or bale buster and easily save money by switching from loose peat bags to 3.8 cubic feet compressed bales.

Simplify your nursery:

  • LOAD and FILL at waste height
  • No need to work up on platforms or above the mixer
  • IN HOUSE custom mixing and blending machine
  • TIMER and SLOW TURN options
  • CONVEYOR and FEEDER options
  • Dual or single Operator System
  • Load from the front or rear of machine
1 yard soil mixer
STILT.PRO - All-In-One 1 Yard Soil Mixer

What size soil mixer do we offer?

 We are in development of a 1 cubic yard batch mixer and a smaller all in one 1/2 yard mixer and filler.  Customization is available in all aspects of the design for your specific growing needs. Please contact us about your unique application.

How many pots can a garden soil mixer fill per batch?  As a reference, a one cubic yard garden soil mixer can fill around 200 True #1 containers.

See the table of mixer size and number of container

Don’t forget to check out the Ground Grinder's little brother the "mini"


Typical Soil Mixer Batch Capability*

Here are some common batch mixer sizes and the number of common containers / pots / trays that they can fill each batch.  Typical batch mixing time is 3 to 5 minutes to fully mix media.

Mixer Volume (Cubic Yards) 0.25 0.5 1 2 4 8
Container Type Containers / Trays Containers / Trays Containers / Trays Containers / Trays Containers / Trays Containers / Trays
T.O. Plastics
34 68 137 275 551 1102
T.O. Plastics
64 129 259 518 1036 2073
T.O. Plastics
59 119 238 476 952 1905
T.O. Plastics
31 62 125 251 503 1006
Summit Plastic Company
Round Janor Pots
3.5″ (9 cm H)
530 1061 2123 4247 8494 16988
Summit Plastic Company
Round Janor Pots
6″ (15 cm T)
154 308 616 1232 2465 4930
Nursery Supply
80 160 320 641 1282 2564
Nursery Supply
True #1
50 100 201 403 807 1615
Nursery Supply
True #2
25 50 100 201 403 807
Nursery Supply
True #3
16 33 67 134 269 538
Nursery Supply
13 26 52 105 210 420
Nursery Supply
8 16 33 66 132 265

*reference info taken from these manufacturers:  |  |

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What does the warranty look like?

3 Year, Unlimited Hours Warranty – INCLUDED

What does it include?

Includes: Problem identification, remote trouble shooting of issue, support and instruction for proper repair, and providing replacement of failed parts.

What is excluded?

Excludes – Misuse of equipment (including using non horticultural potting mixes with high sand and field soil content) or improper care, such as leaving fertilizer in machine for an extended period of time.  Wear parts (chain, slats, wear plates or surfaces).  External physical damage inflicted on the machine.  Labor repair costs.

We will walk you through the repair process and make sure you're happy.

What about Service Parts?

Yes, we keep inventory of most all parts. Most all of the components are either US Sourced or a common off the shelf component. We are having some supply chain issues on components, but we are working through the best way to manage that.

What about Repair?

All of our machines are designed right here in the US.  We design these machines to be easily repairable by an inexperienced worker.  Should a problem arise, you won’t need to weld or fabricate a new part.  The entire machine is bolted together and you can simply bolt in a replacement part.

The hopper capacity seems low

We have heard that concern, I get it, you won’t be able to load a machine up and let a person pot plants for a day.

Some perspective – The rear load machine holds about 3/4 – 1 cubic yard which is up to about 200 gallons of material. That gives you about 15 minutes of runtime without stopping.

The reason for the smaller equipment size is to primarily keep the price and complexity down.

Increasing the machine size has a few unwelcome side effects:

-Increase horsepower requirements which means increased power – now you have to have dedicated power for the machine.

-Increasing the hopper size also increases the physical size of the machine which increases the overall cost and reduces portability

You may have not made a purchase on a potting machine in the past because of the overall cost.

We're being cautious around those concerns and trying to work within your business goals.

Is this production rate slow?

From time to time, we hear that our production rates appear slow. Look at it this way though. You have 5 or 10 workers running a high-speed line. SOMETHING GOES WRONG, you now have all these people standing around and/or you need to find a different job for them.

What's your real per man hour potting rate?

If you have a machine problem with a high-speed line you’re completely shut down.  With a cell-based design, you have a small part of the potting operation down.  Your efficiency is similar whether you have 1 or 4 people operating STILT.PRO machines.

Your business is complex, don't make it worse.

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