Qingdao Huashida Machinery Co., Ltd.
| Payment Terms | L/C |
| Supply Ability | 30 Sets/Year |
| Delivery Time | 60days |
| Packaging Details | Wodden Box |
| Raw Material | HDPE |
| Pipe Structure | Carrier Steel Pipe-Polyurethane Foam-HDPE Winding |
| Rust Removal Quality | ≥2.5 Grade |
| Foaming Machine | High-Pressure Foaming Machine |
| Brand Name | HUASHIDA |
| Model Number | Polyurethane Foam Machine |
| Certification | CE, ISO9001:2008 |
| Place of Origin | QINGDAO,CHINA |
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Product Specification
| Payment Terms | L/C | Supply Ability | 30 Sets/Year |
| Delivery Time | 60days | Packaging Details | Wodden Box |
| Raw Material | HDPE | Pipe Structure | Carrier Steel Pipe-Polyurethane Foam-HDPE Winding |
| Rust Removal Quality | ≥2.5 Grade | Foaming Machine | High-Pressure Foaming Machine |
| Brand Name | HUASHIDA | Model Number | Polyurethane Foam Machine |
| Certification | CE, ISO9001:2008 | Place of Origin | QINGDAO,CHINA |
| High Light | 500-1600mm Diameter Range Pre-Insulated Pipe Production Line ，High-Pressure Foaming Machine Polyurethane Spray Foam Pipe Machine ，Automated PLC Control HDPE Winding Pipe Equipment | ||
PU Spray Foaming HDPE Winding Pre-Insulated Pipe Production Line
Pipe Diameter Range: 500-1600mm
The PU spray foaming HDPE wrapping pre-insulated pipe production line is specially designed for manufacturing polyurethane pre-insulated direct buried pipes. These pipes are widely used in district heating networks, cooling systems, and crude oil transportation projects.
Main Features of PU Spray Pre-Insulated Pipe:
| No. | name |
| 1 | External wall Shot blasting rust removel machine |
| 2 | Medium-frequency induction heating furnace |
| 3 | Polyurethane spray foaming unit |
| 4 | pipe rotator trolley |
| 5 | Single screw extruder and diehead mould |
| 6 | Finished pipe ends trimming machine |
| 7 | pipe Conveyers and racks |
| 8 | Electrical system and PLC |
Production line equipment Photos show
Rust Removal
First, the surface of the steel pipe is derusted, usually by shot blasting or sand blasting, to ensure that the surface is clean and free of rust, oil and other impurities. Preheating: The cleaned steel pipe is preheated so that the subsequent polyurethane foam can better adhere to the steel pipe surface.
Polyurethane spray molding line
The polyurethane raw materials (isocyanate and polyol) are mixed in a high-pressure foaming machine and evenly sprayed onto the surface of the preheated steel pipe. The polyurethane raw materials rapidly foam on the surface of the steel pipe, forming an insulating layer.
Polyethylene sheet extruding winding line
Polyethylene (PE) is wrapped around the polyurethane insulation layer to form an outer sheath. Cooling and shaping: The wrapped pipe is cooled and shaped to ensure that the outer sheath and insulation layer are tightly bonded to form a stable structure.
PE Jacket Water quenching
Wrapped finished pipe
Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
3000000-5000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
1. company profileQingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe joints a... 1. company profileQingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe joints a...
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