Spraying polyurethane foam for insulation sounds straightforward. But many contractors struggle with slow equipment, uneven coating, and material waste. Some machines cannot maintain stable temperature in cold weather. Others clog frequently and cost hours of cleanup time.
A YG polyurethane foam spray machine solves these problems fast. It gives you a high-pressure, temperature-controlled spraying system that works on roofs, pipelines, cold storage walls, and industrial tanks. With precise 1:1 ratio control and self-cleaning spray gun, our pu spray machine helps you finish jobs faster, use less material, and bid on more projects.
Technical Parameters of Polyurethane Foam Spray Machine
| Parameter | YGMC-500 |
| Proportion type | Fixed 1:1 |
| Self-cleaning spray gun | 1 set |
| Net weight | 250kg |
| Gross weight | 300kg |
| Feed pump | 2 sets |
| Heated hose length | 15m (49.2 ft) |
| Raw material viscosity range | 200-1000 CPS |
| Max working pressure | 35MPa (350 bar) |
| Max fluid temperature | 88°C (190°F) |
| Max output | 24kg/min (42 lb/min) |
| Heater power (each) | 6000W |
| Heated hose power | 1000W / 15m |
| Total power | 15000W |
| Voltage | 230V 1-ph / 3-ph 220V/400V 3-ph |
| Machine size | 870×700×1150mm |
Working Principle of PU Spray Machine
The polyurethane foam spray machine works using a high-pressure hot spray process. Two feed pumps draw component A and component B from their drums. The material enters the main machine, where precision metering pumps control the volume ratio at exactly 1:1.
The machine heats both components to the ideal temperature. Heated hoses keep the material warm all the way to the spray gun. When the operator pulls the trigger, the two materials collide at high pressure inside the mixing chamber. This impact creates a fine mist that sprays evenly onto the surface.
The self-cleaning spray gun flushes out remaining material after each use, preventing clogs and saving cleanup time.
Key Features of Polyurethane Sprayer
High pressure, fine atomization – 35MPa working pressure creates a fine, even mist. No dripping. No uneven spots.
Precise 1:1 ratio control – The metering pump maintains accurate proportions. Every spray batch cures correctly.
Four-stage material filtration – Multiple filters catch debris before it reaches the pump. Less clogging. Less downtime.
Fast heating, stable temperature – 6000W heaters and a heated hose keep material at ideal temperature. Works in cold weather.
Self-cleaning spray gun – Flushes material after each job. No dried residue to clean out the next day.
Leakage protection – Multiple safety systems protect the operator from electrical hazards.
Digital display – Shows real-time material consumption. Know exactly how much you have used.
Application of Polyurethane Spray Foam Equipment
This polyurethane spray foam equipment works on flat roofs and pitched roofs for waterproofing and insulation. It also sprays onto pipeline exteriors for anti-corrosion coating, covers cold storage walls and ceilings to maintain low temperatures, and applies to building exterior walls for thermal insulation. For industrial tanks and storage vessels, the equipment provides chemical resistance. It also protects bridge structures, parking decks, and parking garages from water damage.
The equipment also works on basement walls for waterproofing, on steel structures for corrosion protection, and on refrigeration units for energy efficiency. One machine does all these jobs.
Customer Cases
Case 1 – UAE: 50°C High Temperature Environment
A commercial complex by the waterfront in Dubai, UAE needed roof and exterior wall insulation. Summer temperatures often exceed 50°C, and the humidity along the Persian Gulf coast is extremely high. This harsh environment posed dual challenges for equipment durability and material adhesion.
Traditional insulation materials failed to meet performance requirements under such high heat and humidity. The contractor chose a YG polyurethane foam spray machine.
The equipment maintained stable operation even in extreme conditions. The powerful heating system and heated hoses kept the material at optimal temperature throughout the spraying process. The spray foam formed a uniform, seamless insulation layer that effectively blocked heat transfer and moisture penetration while enhancing the building’s exterior appearance.
After the project was completed, the owner reported significantly lower air conditioning energy consumption and greatly improved indoor comfort.
The customer praised the YG equipment for its reliability in extreme climates, high efficiency, and the remote technical support provided. They have since expressed interest in future purchases.
Case 2 – Russia: -30°C low temperature environment
A factory in Moscow needed insulation for a 5000m² new building. Winter temperatures drop to -30°C. The client considered outsourcing the work but calculated the long-term cost.
They bought a YG polyurethane sprayer. The machine heated materials quickly despite the cold. The spray foam maintained consistent quality. Factory heating costs were reduced significantly after installation.
The project manager said: “Your equipment not only solved our problems but also brought significant economic benefits. We look forward to continuing our partnership.”
Polyurethane Spray Machine vs Traditional Insulation Materials
| Comparison | YG Polyurethane Spray Machine | Traditional Insulation (Rockwool/Polyboard) |
| Construction period | 1000m² finished in one day | Installation takes at least one week |
| Material waste | Almost zero, foams on site | 15-20% waste from cutting |
| Seam treatment | No seams, one continuous layer | Many board gaps, need sealing |
| Irregular shapes | Easy, conforms to any surface | Difficult, needs cutting and fitting |
| Repair later | Simple spot repair | Complex, boards must be replaced |
| Average payback period | 1-2 projects covers machine cost | Pay for materials every time |
| Workers needed | 2 operators | 4-5 workers |
Equipment Configuration List
Each YG polyurethane foam spray machine comes with:
| Item | Quantity |
| Main machine (YGMC-500) | 1 set |
| Self-cleaning spray gun | 1 set |
| Heated hose (15m / 49.2 ft) | 1 set |
| Feed pump | 2 sets |
| Spare parts kit | 1 set |
| Tool kit | 1 set |
| Operation manual | 1 copy |
What this means for you: No need to buy extra parts before your first job. Self-cleaning spray gun saves cleaning time. Heated hose ensures stable temperature in cold weather. Spare parts kit covers common wear items.
Plug and work. Mount the hoses, connect the power, load the materials, and start spraying.
FAQ
Q: What is the price of a polyurethane foam spray machine?
A: Price depends on configuration and accessories. Contact us for a quote based on your needs.
Q: Can this pu spray machine spray both polyurethane and polyurea?
A: Yes. With configuration adjustments, the same machine can spray both materials.
Q: Is training required to operate this polyurethane sprayer?
A: Basic training is recommended. We provide online video training and technical support.
Q: How often does the machine need maintenance?
A: Daily flushing after each job is required. Replace seals and filters based on usage hours.
Q: Does it work in cold weather?
A: Yes. The heated hose and powerful heaters maintain stable temperature even in -30°C conditions.
Q: What power supply is required?
A: 220V/400V, 3-phase, 50Hz or 60Hz. Single phase available on request.
