One-Step PU Foam Insulation Line for Buried Oil Pipelines with Water Cooling and

Introducing Huashida's innovative one-step continuous polyurethane foam pre-insulated pipe production line, meticulously engineered for optimal performance. Designed to handle small-diameter pipes (Φ32-426mm), these insulation systems ensure superior thermal protection. They find widespread usage in various sectors such as heating supply pipelines and oil transmission pipelines, along with any application demanding premium thermal insulation. This advanced production line seamlessly merges the steel pipe, PU foam insulation layer, and the HDPE outer casing into a single, streamlined continuous process. There is no need for pre-fabricated casings, thereby enhancing production efficiency and ensuring a cohesive manufacturing experience.

Core Equipment:

• Advanced Steel Pipe Derusting Equipment
• High-Performance PE Extrusion Machine
• Precision Forming Molds
• State-of-the-Art Deviation-Correcting Devices
• Efficient Cooling Equipment
• Precision Cutting Tools
• Innovative Pipe Transfer System
• Accurate Spray Marking System

The comprehensive production line is crafted with:

Extruder → Die Head → Cooling Water Tank → Traction Machine → Cutting Machine → Pipe Clamping Machine → Bracket and Electrical Control System

• Versatile Material Options: Corrosion resistance: Compatible with fusion-bond epoxy powder and various coatings. Thermal insulation: Options include high-temperature polyurethane foam or black pitch foam. Outer jacket: Black, UV-resistant, and anti-aging, ensuring durability.
• Robust Layer Integration: The jacket, foam, and anti-corrosion layers adhere firmly, providing superior protection.
• Damage-free Rotation System: Rubber wheels prevent damage to the anti-corrosion layer during operation.
• Advanced Alignment Technology: The Automatic Hydraulic Deviation-correcting Machine ensures stable performance and precise rectification.

Steel Pipe Diameter Range: 32mm - 426mm

Processing Capacity: ≤250㎡/h

Surface Cleaning Grade: Sa2.5

Materials Used:

Black Material: Isocyanate

White Material: Polyether Polyol Mixture

• Steel pipe derusting equipment
• PE extrusion machine
• Forming molds
• Deviation-correcting devices
• Cooling equipment
• Cutting tools
• Pipe transfer systems
• Spray marking system

This "One-step" production line features a high degree of automation and operates efficiently for pipe diameters ranging from 32mm to 426mm. The insulation coating produced complies with national standards and is widely utilized in:

• Long-distance oil pipelines
• Directly buried heating pipelines
• Cooling systems

By delivering continuous operation, high production efficiency, energy savings, and environmental benefits, this line represents a cutting-edge solution for thermal insulation pipe production.

Huashida actively participates in various professional industry exhibitions and technical exchange activities in China and abroad every year. We communicate face-to-face with global customers, partners and industry experts to discuss anti-corrosion and insulation technologies, pipeline production equipment, new material applications and other related fields. Through continuous exhibition participation and technical exchanges, the company constantly absorbs advanced international concepts, improves product R&D and technological innovation capabilities, further expands overseas markets, and establishes a professional and reliable brand image.

Huashida's footprint extends throughout China and exports all over the world including Russia, Iran, UAE, India, Belarus, Kazakhstan, Turkey, Egypt and so forth.

CE and ENC Certification

Utility model patents and computer software copyrights related to anti-corrosion coating production lines