

With the rapid development of the insulation, building waterproofing, and protective coating industries, PU spray machines have become indispensable equipment in modern construction and industrial applications. As a trusted manufacturer, YG Machinery offers advanced polyurethane spray equipment that combines durability, high performance, and broad applicability. Among them, the hot-selling III(H) and III(D) series are favored by customers for their high efficiency and versatility. Contact us anytime for the latest polyurethane machine for sale!【WhatsApp/WeChat/Phone】+86 13837122632
III(H) PU Spray Machine
The III(H) polyurethane spray equipment features a pneumatic boost system, providing stable pressure and material output. Its compact size and mobility make it ideal for flexible, high-efficiency projects.
Technical Parameters:
Parameter | Value |
Power Supply | Three-phase four-wire 380V/50Hz, 220V |
Heating Power | 9.5 kW |
Drive Type | Pneumatic |
Air Source | 0.5–0.8 MPa ≥0.9 m³/min |
Material Output | 2–10 kg/min |
Maximum Output Pressure | 25 MPa |
A:B Ratio | 1:1 |
Product Advantages:
- Pneumatic boost, low failure rate, simple operation, easy to move
- Cylinder and solenoid valves from international brand AIRTAC, durable and powerful
- Advanced air exchange system ensures stable operation
- Quadruple material filter minimizes spray blockage
- Multiple electric leakage protection ensures operator safety
- Latest spray gun: compact, lightweight, easy to operate, with excellent atomization
- Large-ratio material pump ensures smooth feeding even with high-viscosity materials in winter
Applications:
- Spraying: exterior walls, farms, granaries, cold storage, mobile houses, roofs, vehicle compartments, ship cabins, etc.
- Casting: water heaters, tanks, beer tanks, storage tanks, roadbed filling, etc.
III(D) PU Spray Machine
The III(D) polyurethane spray equipment is suitable for both spraying and batch casting. Equipped with a timed and metered function, it improves production efficiency and ensures construction consistency.
Technical Parameters:
Parameter | Value |
Power Supply | Three-phase four-wire 380V 50Hz |
Heating Power | 9 kW |
Drive Type | Pneumatic |
Air Source | 0.5–0.8 MPa ≥0.9 m³/min |
Material Output | 2–10 kg/min |
Maximum Output Pressure | 25 MPa |
A:B Ratio | 1:1 |
Product Advantages:
- Timed and metered function for batch casting, improving efficiency
- Pneumatic boost system, simple operation, easy mobility, low failure rate
- Cylinder and solenoid valves from international brand AIRTAC, reliable and powerful
- Advanced air exchange system ensures stable operation
- Quadruple material filter reduces spray blockage
- Multiple electric leakage protections for safety
- Latest spray gun: compact, lightweight, easy to operate, with superior atomization
- Large-ratio material pump ensures smooth feeding even with high-viscosity materials in winter
Applications:
- Casting: broken bridge aluminum, aluminum profiles, water heaters, tanks, beer tanks, storage tanks, hot and cold water pipes, pipe joints, pipe repairs, refrigerated trucks, product packaging, etc.
- Spraying (with some parts replaced): exterior walls, interior walls, roofs, cold storage, ship cabins, vehicle compartments, storage tanks, etc.


International Project Cases
Russia Project Case
The III(H) PU spray machine from YG Machinery was successfully delivered to a large cold storage construction project in Russia. The customer used the machine for roof and exterior wall spraying. The equipment provided high stability and greatly improved spraying efficiency, while the quadruple filtration and safety protection system ensured smooth construction, earning high praise from the client.
Saudi Arabia Project Case
In industrial facility construction in Saudi Arabia, the customer selected the III(D) PU spray machine for pipeline insulation and storage tank casting. The intelligent metered function enabled precise large-scale construction. The equipment was easy to operate, capable of efficient performance in both winter and summer, significantly reducing labor costs and ensuring uniform material output. The project was completed on schedule and successfully.
Why Choose YG Machinery
With over 20 years of industry experience, YG Machinery is a professional polyurethane machine for sale supplier, offering comprehensive pre-sales consultation, installation guidance, and after-sales service.
With stable product quality, international production standards, and extensive engineering experience, YG Machinery has become a long-term partner for numerous construction, insulation, and protective coating companies. Additionally, YG also provides polyurea spray machines, GRC spray machines, mortar spray machines, concrete pumps, and small mixers. Contact us for exclusive quotations and customized solutions.【WhatsApp/WeChat/Phone】+86 13837122632