CM 1500 Portable Attic Blowers

CM 1500 Portable Attic Blowers

portableThe CM-1500 gives impressive production rates versus cost in the insulation machine industry. If you want mobility with low power requirements and high production, then this is for you. In-fact, it will take you closer to higher production of large machine capabilities. Insulation was never been so easy but this gives you freedom to cover your quick production needs.

The many options (blowers, input power, wheel package), offer choices to the small contractor that require versatility, production, and low maintenance in a high endurance machine. (scalping augers /shredder) A Great Choice for the Weatherization Contractor.

Dave Krendl Cool Machines

CM1500 (left) Manufacturer, Dave Krendl (center) CM700 (right)

Various Videos on the CM1500

CM1500's Ease of Maintenance

This video, in English and Spanish voice over, shows the simplicity of accessing the internal workings of the CM1500

On-Site Dense Pack Training with CM1500HP

This project was in Santa Rosa Beach, Florida. A 4,700 sq foot custom home. Dense packing between floors for sound control.

On-Site in Panama City, Florida: CM1500HP

Hurricane Michael ravaged Panama City and the trades have a difficult time keeping up. Insulation Specialists purchased a CM1500HP.

Wall Spray with CM1500HP

We offer on-site training. This is our visit to Canton, Texas in 2018.

On Site Review: CM1500HP

This Energy Efficiency company in Tulsa, Oklahoma is now insulating. They purchased our upgraded CM1500HP. Here is their review.

CM1500HP: On-Site in Gueydan, Louisiana

This spray foam contractor already owned a CoolVac16 and wanted to add another Cool Machine branded machine to his company. They now offer blown in fiberglass and cellulose.

On Site: CM1500HP

We trained a spray foam insulation company in Corydon, Indiana. Using cellulose, we were able to insulate a 2,000 sq ft house within 2 hours.

Replacing their [Other Brand] Insulation Machine

Using a [other brand] insulation machine was neither providing the production nor the even blowing that this company wanted. Located in Baton Rouge, Louisiana, this company provides their thoughts.

Perfect for Commercial Spray

K-13 cellulose is applied over 2 of foam. The metal roof of this commercial building, located in Battle Creek, Michigan, is treated with 2 of polyurethane foam. K13, an acoustical / fire-resistant cellulose insulation is glue-sprayed on the foam to provide a nice, noise reducing environment.

On Site Training: Phoenix, Arizona

Orangutan Services in Phoenix purchased a CM1500. We visited them in Phoenix, Arizona and trained them on installing fiberglass, ventilation and securing the attic access to keep it from drafting air.

CM1500R: Recycler

If you are looking to add a convenient recycling option to your machine (Cool brand or not), this recycler is effective.

On Site Review: CM1500

Affordable Insulation is an up-start company in LeMars, Iowa. They purchased a CM1500 to do dense pack as well as wall spray cellulose.


  • For faster access to airlock it has quick release hopper with easy handling and transport.
  • To better control of your fiber it adds slide-gate controller
  • For long lasting finishes with corrosion resistance it uses high quality powder coating.
  • Manual thermal overloading protection.
  • Quick release auger provides easy access to airlock seal replacement and service.
  • Slide-gate control provides precise control of fiber.
  • Dual scalping augers /shredders increase fiber conditioning  while providing consistent flow.
  • #40  nickel plated chain and hardened sprockets, are rugged, and corrosion resistant.
  • One or two integrally mounted 2 or 3-stage blowers w/check valve and filter  protection.
  • Modular design with see-thru access panel for quick troubleshooting and maintenance.
  • 100 ft. dual function (3-position) remote cord w/cord hanger, offers control and convenience.


  • It has extensive safety features. sill switch and manual override controls promote increasing operator safety and quick hazard response.
  • For accessory devices it includes duplex auxiliary outlets.
  • Deluxe voltmeter for quick electrical diagnostics and low voltage  protection of  motors.


  • 1-Blower: 265 lbs
  • 2-Blower: 285 lbs


  • Extruded steel
  • 10″ long x 14″ diameter
  • 3″ output for blowing hose
  • Quick release auger for access to airlock seals


  • Single input, 15/20 amp 120 volt single blower
  • Double input, 15 amp 120 volt double blower (8 amp & 12 amp 230 volt / 50hz, for export)


  • 24 W x 32 L x 42 H


  • 8.4 dia., 140 CFM, 13 amp. Magnum super blower provides higher blower output capacity with double the service life
  • One,3-stage (120volt 12.5amp.)
  • Two,3-stage (120volt 12.5amp.)


  • 15cu/ft.  (3 bags of cellulose; 1/2 bag of fiberglass)

CM 1500 Production Rates

Material: Different materials may produce varying results.
Lbs p/hour: Based on industry-wide standards of 100' hose with 12' rise
Bags p/hr: Standard bags (lbs noted by material)
Sq Ft p/hour: Based on R-19 depth
MaterialLbs p/hrBags p/hrSq ft p/hr
Cellulose (22 lb bag)22001005,000
Fiberglass (32 lb bag)900283500
Rockwool (30 lb bag)1400471750

Upgraded CM 1500 Production Rates (18"x10" airlock)

Material: Different materials may produce varying results.
Lbs p/hour: Based on industry-wide standards of 100' hose with 12' rise
Bags p/hr: Standard bags (lbs noted by material)
Sq Ft p/hour: Based on R-19 depth
MaterialLbs p/hrBags p/hrSq ft p/hr
Cellulose (22 lb bag)30001366818
Fiberglass (32 lb bag)120037.54666
Rockwool (30 lb bag)2600863250

Generator Size

  • 5,000 watt or larger/ 1 blower
  • 7,500 watt or larger/ 2 blower


Wireless Remote

Even though our machines come standard with a 150 3-way remote. If you want the instantaneous control of your machine, with over 500 of remote control, this wireless unit performs well. The Yellow Jacket Pro 3-button control with Hawkeye transmitter.

Dense Packing Kits

We carry all the hoses, reducers and wall tubing for you to go from the 3 hose to 2/1.5/1.25 and even a brick nozzle.

Hopper Cover

Reduce the dust in your truck or trailer! This hopper cover bolts on to your existing machine and includes a plastic curtain to allow for loading while diminishing the dust.

Additional Blowers

Add an additional blower if you want to extend your hose beyond 150 feet, are using an internal wetting system or plan to add a wall spray package.

We offer an additional 9 amp and 13.7 amp option.

Floor Mount option shown

Hose Reels

Our standard 34 wall-mounted hose reel holds up to 150 of 3 hose or 200 of 2 1/2 hose. We offer a live-reel hose option. See this page for all our hose reel options.

Internal Wetting System

This system reduces the cloud effect when blowing cellulose into an attic or open area. It leaves a thin crust on the cellulose which stabilizes it in the attic area. This works off a standard garden hose or will incorporate into a portable water system.

Yes, the CM1500 is very capable of wall and glue spray. Components include hoses, spray nozzles, pump, water tank and wall scrubber.

Build Your Own CM1500

Build your own machine! Note: The prices are list pricing. We will contact you with a DISCOUNT! This form is PURELY for your own curiosity. It DOES NOT commit you to the sale. We will simply provide you a DISCOUNTED QUOTE and we will not pester you 😀
  • Price: $6,530.00
    CM1500 Standard
    --13.7 amp, 3-stage blower
    --Double input 15amp
    --150' corded 3-way remote
  • $0.00
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