
Choosing the right spray foam insulation truck can be a daunting task, especially with so many options available. The size of your truck should match the size of your jobs, and a larger truck will give you more flexibility to take on bigger projects.
Consider a truck with a capacity of at least 500 pounds to ensure you can carry enough materials for a full day's work. This will also help you avoid having to make multiple trips to the supplier.
A truck with a lift gate can make loading and unloading materials much easier, especially if you have a lot of heavy bags of foam. This feature can save you time and reduce the risk of injury.
Equipment and Features
A spray foam insulation truck is a mobile base camp for your projects, designed with organized workstations, electrical sourcing, and designated spaces for all the machinery your projects will require.
Your truck should be equipped with a hydraulic machine, great for projects covering hundreds or thousands of square feet, which powers and controls a high-capacity spray foam proportioner without putting too much load on the rig system.

A compressor is essential to keep vital products equipped with compressed air, and you have three different power source options: electrical, gas, and alternator take-off, each with their own pros and cons. Only continuous-run compressors should be used in any spray foam rig.
The proportioner is a vital machine that mixes the two main chemicals used in spray foam insulation, maintaining pressure and temperature of the mix while feeding the spray foam to the spray gun through the heated hose.
Box Truck Features
Mobile spray foam box trucks are more than just vehicles to carry equipment. They should be designed as a base camp for your projects, with organized workstations.
These trucks need to have electrical sourcing to power your machinery. This is crucial for efficient project execution.
Designated spaces for all the machinery your projects will require are essential. This includes room for spray foam rigs and other equipment.
Mobile spray foam box trucks should have organized workstations to keep your projects on track. This includes designated areas for setup, operation, and storage.
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Hydraulic Machine

A hydraulic machine is a game-changer for large-scale spray foam projects, allowing you to cover hundreds or thousands of square feet with ease.
This type of machine can power and control a high-capacity spray foam proportioner without putting too much of a load on the rig system, which decreases wear and tear on your rig.
The hydraulic machine is particularly useful for bigger jobs, where a traditional rig system might struggle to keep up.
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Gun
Your spray gun is a crucial part of your rig, and its performance directly impacts the quality and precision of your work.
The right spray gun for the job is essential, as different chambers are optimized for specific materials. For instance, open-cell foam, closed-cell foam, or polyurea coatings all require a unique spray gun.
A well-maintained spray gun can make a huge difference in the quality of your work, and it's worth taking the time to find the right one for your needs.
It's surprising how often a subpar spray gun can be the culprit behind poor results, so don't skimp on this essential piece of equipment.
Transfer Pump
Your transfer pump is a crucial component of your spray foam equipment. It's responsible for moving the coating or insulation material from storage drums to the sprayer, ensuring a steady flow.
The type of transfer pump you need depends on the viscosity and chemical properties of your materials. This means you'll want a pump that aligns with the specific requirements of your materials.
When selecting a transfer pump, consider factors such as material viscosities, your desired output rate, air pressure, and the interior height of your spray foam box truck. This will help you choose the right pump for your operations.
A good transfer pump will ensure a smooth and efficient workflow, saving you time and reducing the risk of equipment damage.
Proportioner
The proportioner is the heart of your spray foam system, responsible for mixing the two main chemicals, A-side and B-side, to create the perfect blend. This machine is crucial for maintaining the right pressure and temperature to feed the spray foam to the spray gun through the heated hose.

A proportioner is essentially the engine of your system, heating the spray material to achieve the proper chemical reaction for effective application. The three most common types are electric, hydraulic, and air sprayers.
When choosing a proportioner, consider your typical jobs and ensure your system can handle the output capacity. If you plan to grow your business, you may want to invest in a proportioner designed for larger jobs or higher volumes from the get-go.
The proportioner plays a vital role in your spray foam operations, and selecting the right one can make a big difference in the quality of your work.
Insulation and Application
When you're working with spray foam insulation, it's essential to have the right equipment to get the job done efficiently. Oak Ridge Foam & Coating Systems, Inc. specializes in designing and building custom spray rigs for contractors.
Their team of experts is here to guide you every step of the way, ensuring that your custom-built spray foam insulation trailer meets all your needs.
Safety and Maintenance
Regularly inspect the spray foam insulation truck's equipment to prevent damage and ensure proper functioning. This includes checking the condition of hoses, pumps, and other moving parts.
A well-maintained truck is less likely to experience downtime, reducing the risk of delayed projects and lost revenue.
Safety Tips

Safety is a top priority in the spray foam insulation installation business. Compromising on safety is not an option, so it's essential to have the right safety products and procedures in place.
Fire extinguishers are a must-have on any mobile spray foam rig. You should have at least two ABC-approved fire extinguishers on hand, and make sure your team knows where they are and how to use them.
Emergency eye wash stations are also crucial. According to ANSI regulations, you should have one within a 10-second walk of any hazard, and it should be hands-free so you can hold your eyelids open while washing out particles or chemicals.
Material bracing is a great way to secure chemical drums in place while driving your rig. Metal racks with arched drum nests are a common design, and you can ratchet the drums in to keep them secure.
A well-ventilated air system is essential to keep you and your team safe from vapors and contaminants. Even when it's cool outside, make sure the air in your spray foam box truck is circulating.
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Here are some key safety features to consider when designing your rig layout:
- Heavy equipment should be kept low to the ground and close to the back of the box.
- Chemical drums should be secured at all times to prevent spills.
- The generator and compressor should be installed in the box as close to the cab as possible.
Having a 48-inch wide door on the passenger side near the compressor and generator can make it easier to access equipment. This can be a big help when you need to perform maintenance or repairs.
Drum Heaters
Drum heaters are a game-changer for keeping your chemicals at the right temperature.
Drum heaters ensure that A-side and B-side chemicals stay at the optimal temperature for viscosity, which is crucial for maintaining high-quality foam, especially during the fall when the weather starts to turn colder.
This means you can work with the same level of quality throughout the job, without worrying about temperature fluctuations affecting your results.
Drum heaters are a simple yet effective way to maintain consistency in your work, and they can make a big difference in the quality of your final product.
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Rig Components and Considerations
A spray foam insulation truck needs to be well-insulated and heated, using closed cell spray foam insulation to keep equipment and chemicals at the right temperature.
The trailer should have a 2” x 6” steel main frame, not C channel, for strength and durability. Torsion axels are also essential for a smooth tow and longer lifespan.
Safety equipment like fresh air breathing, eye wash, first aid, and fire extinguishers are crucial for protecting the operator. You may also want to add mixers, cutters, a bung wrench, and drum dolly depending on the type of spray foam being processed.
A narrow trailer width can limit maneuverability inside the rig, so an 8’ width is recommended. The proportioner or Reactor is key to determining the rest of the components needed for smooth operation.
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Equipment Considerations
A quality spray foam rig will have a balanced weight distribution to ensure a safe and smooth tow.
The proportioner, also known as the Reactor, is a crucial component that determines the rest of the components needed for a smooth operation.
A spray foam trailer or box truck should be heated and well insulated, using closed cell spray foam insulation.

Safety equipment such as fresh air breathing, eye wash, first aid, and fire extinguishers should be included in your rig.
The strength of the spray foam trailer starts with the frame, and a 2” x 6” steel main frame is recommended over C channel.
A narrow trailer width, such as 8’, is recommended to allow for better maneuverability inside the rig.
The size of the generator or shore power requirements will depend on the heater size of the proportioner and air compressor.
A torsion axle is a good option for a spray foam rig as it allows for a better tow and lasts longer.
The transfer pumps should be easily removable, which requires a sufficient interior height in the trailer.
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Looking for a Used Rig?
If you're looking for a used rig, Profoam often has high-quality options available at a great value, thanks to their trade-in program for contractors upgrading to larger spray foam trailer rigs.

You can check out their current inventory or give them a call at 706-557-1400 to speak with a team member directly.
Profoam's used rigs come equipped with a range of features, including industrial-grade materials and equipment, such as 1.75" Profoam Closed Cell Insulation in walls, ceiling, and floor, and 3/4” Cabinet Grade Plywood walls.
The rigs also often have added features like a 24" commercial steel interior door and a rooftop AC/heat pump.
Profoam's used rigs are designed to be functional and efficient, with features like E-Track barrel bracing systems and heavy-duty adjustable ratchet straps.
Their used rigs also often come with a range of tools and equipment, including a 27" Husky industrial-grade tool box/work bench with bench vice and tool package.
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Frequently Asked Questions
How much does a spray foam truck cost?
A basic spray foam rig costs around $40,000, while a fully equipped trailer can range from $150,000 and up.
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