Selecting the right PU foam spray machine directly affects your construction costs and project quality. A high-quality machine ensures uniform chemical mixing and reduces material waste significantly.
YG Machinery offers various models, including pneumatic and hydraulic drives. Our equipment is widely used in cold storage, roofs, and exterior walls. When choosing a PU spray machine, you must consider pressure stability and heating efficiency.
Pneumatic vs. Hydraulic: Which PU Foam Spray Machine is Better?
The polyurethane foam spray equipment for sale on the market generally falls into two categories. Their power sources and performance characteristics differ greatly.
Pneumatic PU Foam Spray Machine
| YG-III(H) | |
| Power Supply | Three-phase four-wire 380V 50Hz |
| Heating Power | 9.5KW |
| Driving Method | Pneumatic |
| Gas Source | 0.5~0.8 MPa ≥0.9 m3/min |
| Raw Material Output | 2~10kg/minute |
| Maximum Output Pressure | 25MPa |
The pneumatic PU foam spray machine relies on an air compressor for power, featuring low failure rate and easy mobility. Take the YG-III(H) model as an example: it has a total heating power of 9.5KW, supports 75m pipeline, and an output flow of 2-10kg/min, suitable for small-to-medium insulation and waterproofing projects. Its key advantages include simple operation, AIRTAC (international brand) cylinders and solenoid valves for durability, and a 4-layer raw material filter to minimize clogging.
| YG-Q30 | |
| Power Supply | Three-phase four-wire 380V 50Hz |
| Heating Power | 15KW |
| Driving Method | Pneumatic |
| Gas Source | 0.5~0.8 MPa ≥1.0 m3/min |
| Raw Material Output | 2~10kg/minute |
| Maximum Output Pressure | 30MPa |
Hydraulic PU Foam Spray Machine
| YG-H5600 | |
| Power Supply | Three-phase 380V 50Hz |
| Total power/Heating Power | 26/22KW |
| Driving Method | Hydraulics |
| Hydraulic Pressure | 6-18MPa |
| Gas Source | 0.5~0.8 MPa ≥0.5 m3/min |
| Raw Material Output | 2~10kg/minute |
| Maximum Output Pressure | 36MPa |
The hydraulic PU foam spray machine is equipped with an independent hydraulic station, no need for large air compressors, and delivers stronger power (max pressure 28MPa). The YG-H5600 model has a heating power of 22KW and an output flow of 2-12kg/min, unaffected by seasons, ensuring stable feeding even with high-viscosity raw materials in winter. It boasts high energy conversion efficiency and low noise, ideal for heavy-duty projects like large tunnels, pipeline corrosion protection, and large-scale cold storage insulation.
| YG-T40 | |
| Power Supply | Three-phase 380V 50Hz |
| Total Power/Heating Power | 26/22KW |
| Driving Method | Hydraulics |
| Hydraulic Pressure | 6-18Mpa |
| Gas Source | 0.5~0.8 MPa ≥0.5 m3/min |
| Raw Material Output | 2~12kg/minute |
| Maximum Output Pressure | 36Mpa |
Wide Applications of PU Foam Spray Machine
Construction Industry: Core Equipment for Insulation & Waterproofing
In the construction industry, pu foam spray machine is perfect for exterior wall insulation, roof waterproofing, and cold storage coating. 5cm-thick polyurethane rigid foam offers excellent insulation—1 ton of raw material covers 440㎡, widely used in granaries and mobile homes. 10cm water-blown foam is eco-friendly and soundproof—1 ton covers 500-600㎡, suitable for light steel houses and log cabins. The YG-Q30 pneumatic model, with 15KW high-power heating, quickly warms raw materials even in cold-area construction.
Transportation Industry: Soundproofing & Corrosion Protection Solutions
In transportation, the machine provides soundproofing for automobiles, corrosion protection for ships, and sealing for trains. The sprayed coating is waterproof and durable, effectively extending the service life of carriages and ship hulls, especially for refrigerated trucks and ships exposed to harsh environments long-term.
Manufacturing Industry: Equipment Protection & Filling Projects
In manufacturing, pu foam spray machine is used for pipeline corrosion control, tank insulation, and equipment coating. Whether for rust prevention of industrial equipment or filling insulation for water heaters and beer tanks, the machine sprays uniform coatings precisely. It also supports casting operations like roadbed filling and valve sealing.
Real Customer Success Stories
Cold Storage Insulation Project in the US
Mike, a customer from the US, needed efficient insulation for his 500㎡ fresh food cold storage. Traditional construction was time-consuming and ineffective. He chose the YG-Q30 pneumatic PU foam spray machine. Its 15KW heating system maintained stable raw material temperature in winter. After spraying 5cm polyurethane rigid foam, the cold storage’s energy consumption dropped by 30%, construction time shortened from 15 to 10 days, and annual electricity costs saved about $20,000.
Pipeline Corrosion Protection Project in Germany
Lisa’s team in Germany was responsible for tunnel pipeline corrosion protection, facing long pipelines and complex construction environments. After selecting the YG-H5600 hydraulic PU foam spray machine, its 105m pipeline support and 4-layer filter prevented clogging. The sprayed polyurea coating was waterproof and elastic, extending the pipeline’s service life by 10 years and reducing maintenance costs by 40%.
Common Q&A About PU Foam Spray Machine
Total 40kg (20kg for Material A + 20kg for Material B) with precise proportion and high cost-effectiveness.
Need an air compressor with 7.5kw power, 0.9m³/min displacement, and 8bar pressure to ensure stable operation.
Yes. Equipped with 15-22KW high-power heating systems, some models support winter/summer dual heating modes, quickly warming raw materials to ideal temperatures and avoiding uneven mixing.
Prices typically range between $3,000 and $5,000, depending on the configuration and power source.
Our PU spray machine includes a 4-layer raw material filtration system. This, paired with our lightweight spray gun, significantly reduces clogging.
PU foam spray machine is a core equipment to improve project efficiency and reduce costs. Its type selection and parameter matching directly affect construction results. With over 10 years of industry experience, YG Machinery provides pre-sales guidance, operation training, and after-sales support. Our product line covers full-series pneumatic and hydraulic models, meeting diverse needs across industries. If you’re looking for a reliable PU foam spraying solution, feel free to contact us for a customized quote.
