Spray Foam Rigs

Paratus Supply Quality Spray Foam Rigs

What is a Spray Foam Rig?

A spray foam rig is a manufactured trailer or box truck that is put together for a contractor to be completely turnkey. It allows for the spray foam contractor to show up at a jobsite flip a couple switches and begin the application process. Turnkey spray foam rigs consist of a Generator, Compressor, Air Dryer, Proportioning Machine (Reactor), Heated Hose, Transfer Pumps, and Gun.

A quality Spray Foam Rig will be laid out so that the weight distribution of the component are balanced, allowing for a safe and smooth tow. Since the spray foam rig is the applicators work space, a well laid out rig will usually include a good barrel bracing system to safely transport chemicals. Tool boxes, cabinets, and work bench will assist with storing tools and supplies in an organized manner.

Shore Powered Spray Foam Rigs

Shore Powered Spray Foam Rigs Paratus Supply Shore Powered Spray Foam Rigs are great for a contractor that has the ability to tap into onsite power safely and with confidence. We recommend that the applicator that is running a shore powered rig be

Gas Powered Spray Foam Rigs

Gas Powered Spray Foam Rigs Paratus Supply’s Gas Powered Spray Foam Rigs are perfect for a Spray Foam Contractor that is looking to get into the Residential and small commercial Spray Foam Insulation business. These Spray Foam Trailers are

Diesel Powered Spray Foam Rigs

Diesel Powered Spray Foam Rigs Paratus Supply’s Diesel Powered Spray Foam Rig are the most customizable spray foam trailers available to the spray foam Market. With many combinations of generators ranging from 20KW to 80 KW, Diesel Powered Spray

he Trailer or truck should be Heated and well insulated (with Closed Cell of course). Safety equipment should be included such as: Fresh Air Breathing, Eye Wash, First Aid, and Fire Extinguishers. Other tools such as Mixers, Cutters, Bung Wrench, and Drum Dolly may also be needed depending on the type of foam being sprayed and the application. All of these things have weight and need to be calculated when determining the correct trailer size and GVWR weight rating. If the Trailer is undersized and overweight it will eventually have many issues.

Not all trailers will work for a spray foam rig. Height of the interior is extremely important so that transfer pumps can be removed with ease. The frame of the trailer is its strength and is best to have a 2X6 inch steel main frame and not C channel. Axels are also extremely important torsion axels are going to allow for a better tow and last longer. Keep in mind the width as well. A narrow trailer is going to limit maneuverability inside the rig.  An 8.5 foot width is recommended.


Choosing the Proportioner (Reactor) that is best for your needs is extremely important. The Proportioner (Reactor) will determine all of the rest of the components needed to make sure that the rig runs smoothly during its life in production. Heater size of the proportioner and air compressor will determine the power needed from the generator or shore power needed. The generator will determine the size of the trailer and axels needed to support the equipment install.

Investing in the right equipment with a high cost will save you money in the long run. Do it right the first time. If corners are cut to save a little money fixing these mistakes will not only cost the same when correcting them, but will also cost thousands of dollars in down time when the problem arise. This will also have a lasting view of your company when you are not able to complete your jobs in the expected time.

Machine Capabilities and Flow Rates

  • Each type of machine has specific output maximums or flow rates and heating capabilities. Machines with limited heating capacities may require the materials to be warmer than 65°F.
  • Heating capability is also affected by mix chamber selection. Oversized mix chambers increase flow rate reducing the heating capability of the machine. In cold weather applications, mix chamber selection is critical to the performance of the system being applied.

Effects of Temperature on Reactivity and Foam Quality.

  • High Temperature Effects
  • Greater pressure and variation on the gauges.
  • Inconsistent spray pattern
  • Increases tip cleaning.

Optimizing your equipment with proper mix chamber selection

  • “A” and “B” pre-heat settings and hose temperature will reduce time and tip or chamber cleaning during the application. The foam produced from an optimized configuration will be of higher quality resulting Improved yield and fewer processing issues.
Graco Spray Foam Equipment

Portable Spray Foam Rigs

  XM Spray Foam Rigs The Mobile XM spray foam rig provides a solution for spraying foam on job sites that cannot be reached by a full size truck. Some of these jobs would include high rise buildings, roofs, or even shop applications. This unit can