Automatic Polyurethane Spray Foam Machine A50 Closed Cell Foam Equipment for Wall/Roof Insulation. CE and ISO9001 Certified: Passed CE and ISO9001 Quality Management system certification with independent intellectual property. Electric-Free Operation: Pneumatic design allows operation in electricity-free environments with 50% extended electrical element life. High-Quality Stainless Steel Pump: Booster pump made of high-quality stainless steel with corrosion and abrasion resistance, extending life by 50%. Overheating Protection System: Equipped with overheating protection using famous imported components for stable and reliable performance. Emergency Switching System: Features an emergency switching system for the quickest response to emergencies. Compact and Lightweight Design: Small size, lightweight, low failure rate, easy to move, and features a humanized operation panel. Customizable Voltage: Voltage is customizable to meet specific regional power requirements.