508-1620mm Polyurethane PU Spray Foam Pre-Insulated Pipe Production Line with Shot Blasting Equipment
The production line of polyurethane sprayed polyethylene heat-wrap insulation pipes independently developed by our company has obtained multiple national patents. According to the third-party standardized evaluation report, our technology is rated as Level 5, reaching the high level in China. It has also been awarded the title of the "First Set of Technical Equipment" in Shandong Province.
This production line adopts the continuous spraying or intermittent spraying production process. It is a high degree of automation, high production efficiency, savings in raw materials, an increased closed-cell rate of foaming, a reduced water absorption rate, and a three-in-one molding method, making its performance more reliable. The products have higher economic and social benefits in terms of being low-carbon, environmentally friendly.
Pipe diameter range: 500-1600MM,Foaming thickness(mm):30-100mm,HDPE Jacket thickness:3-10mm
Technological flow:
The spray coating and winding process for polyurethane insulation pipe products offers several key advantages:
• Enhances the mechanical properties of the outer protective tube.
• Thins the wall of the outer protective tube.
• Lowers the water absorption rate of the insulation layer.
• Increases the closed cell rate of the insulation layer.
• Decreases the eccentricity of the insulation pipe axis.
• Improves the uniformity of the overall insulation layer density throughout the pipeline.
• Boosts the compressive strength of the insulation layer.
• Reduces the thermal conductivity of the insulation layer, thereby minimizing energy loss.
| Steel Pipe Coverage Range | 520mm - 1620mm |
| Processing Capacity | ≤ 250m²/h |
| Cleaning Level | Sa2.5 |
| Materials Used | Black Material (Isocyanate), White Material (Combined Polyether), Polyethylene |
| Main Equipment | Comprising three parts: 1. Shot Blasting and Rust Removal Production Line 2. Polyurethane Spraying Production Line 3. PE (Polyethylene) Wrap Production Line |
Qingdao Huashida Machinery Co., Ltd. was established in 2003 and is a manufacturer specializing in thermal insulation and anti-corrosion equipment.We offer one-stop pipeline solutions.Focus on the global international market.The insulation pipe production lines and 3lpe Anti-Corrosion Coating line developed and manufactured by Huashida are widely used in the construction of municipal heating, sewage, water supply, natural gas and communication pipe networks, crude oil pipeline transportation, communication and agricultural irrigation and other fields.
![]()
![]()
![]()
![]()