Dave Krendl has been on the “cutting edge” of designing and implementing machines for the wall spray cellulose industry. From the inception of stabilized cellulose, engineering has morphed.
The CM300 is our most advanced, turn-key system. In one unit, you have the ability to spray and recycle material with great efficiency. Even as Cool Machines is one of the most competitive manufactures on the market, the CM300 still comes with a $30K plus price-tag.
One of our customers wanted a spray and recycle machine. However, they wanted a vacuum system that could be used separately from the machine to give them flexibility to remove insulation from existing attics. This configuration came in well below $30K! What did we do?
Using the base machine in the CM300 setup, we implemented the following solution:
- CM3500 with a 5 horse power, positive displacement blower
- Modified the CM3500 with a recycling hood
- Insulation Vacuum
Here is how the wall spray and recycling works!
- Dry cellulose is loaded into the main hopper. NOTE WELL: You cannot use any kind of cellulose. You need to make sure your cellulose is stabilized with starch and includes 100% borate. Cellulose is made with either Ammonium Sulfate or Borate. Ammonium Sulfate, when wet, will off-gas obnoxious fumes. Most cellulose manufacturers have various products.
- A water pump feeds water to the nozzle. The water is added to the cellulose as it exits the spraying hose.
- The wet cellulose is sprayed into each cavity. A productive installer will be able to fill a 2×4-8’ stud wall cavity in 30 seconds.
- Cellulose that falls to the floor during spraying and after shaving off the wall is recycled using a standard insulation vacuum
- The vacuum recycles the damp material. Since the material is being sent back into the machine, it is critical that floors are free of debris.
- The recycled material is dropped into the sub-hopper with a hood. The hood is equipped with a window so the recycling operator can have a visual indicator as to how full the sub-hopper is. The sub-hopper is able to be controlled so that damp material is precisely mixed with the dry material to make for a consistent application.