Qingdao Huashida Machinery Co., Ltd.
| Principle | High-Pressure Air Type |
| Pipe Structure | Carrier Steel Pipe-Polyurethane Foam-HDPE Casing |
| Supply Ability | 30 Sets/Year |
| Delivery Time | 60DAYS |
| Payment Terms | L/C,D/P,T/T |
| Coating | Powder Coating |
| Packaging Details | Wodden Box |
| Application | Hot Chiller Water/Oil /Chemical Material Pipeline |
| Certification | CE,ISO |
| Model Number | Polyurethane Foam Machine |
| Brand Name | HUASHIDA |
| Place of Origin | QINGDAO,CHINA |
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Product Specification
| Principle | High-Pressure Air Type | Pipe Structure | Carrier Steel Pipe-Polyurethane Foam-HDPE Casing |
| Supply Ability | 30 Sets/Year | Delivery Time | 60DAYS |
| Payment Terms | L/C,D/P,T/T | Coating | Powder Coating |
| Packaging Details | Wodden Box | Application | Hot Chiller Water/Oil /Chemical Material Pipeline |
| Certification | CE,ISO | Model Number | Polyurethane Foam Machine |
| Brand Name | HUASHIDA | Place of Origin | QINGDAO,CHINA |
| High Light | Automated pre-insulated pipe production line ，High-pressure air polyurethane spray foam ，Preinsulated steel pipe making machine | ||
Automated Pre-Insulated Pipe Production Line with
High-Pressure Air Type Polyurethane Spray Foam
The polyurethane sprayed polyethylene thermal winding preinsulation pipe production line, independently developed by Huashida, is composed of three main sections: the external shot blasting and derusting collector production line, the polyurethane spraying production line, and the PE winding production line. This production line holds numerous national patents and has been rated as having a technology advanced level of 5 by a third-party standardized evaluation, indicating that it has reached the domestic leading level. It has also been awarded the first set of technical equipment in Shandong Province.
The production line utilizes a continuous spraying process, characterized by high automation, rapid production efficiency, and raw material savings. It also features an increased foaming and closed cell rate, a lower water absorption rate, trinity molding, and enhanced reliability. The products manufactured are low-carbon and environmentally friendly, offering significant economic and social benefits.
Producing technology flow of the polyurethane coating steel preinsulated pipe equipment:
1. Remove rust from steel pipe surface
2. preheat the steel pipe to get it ready for polyurethane spraying
3. Spray polyurethane evenly on steel pipe outer surface
4. Wrap melted HDPE strap around the PU foam
5. Trim the pipe ends
| Steel pipe diameter | Thickness of insulation pipe | Diameter of outer protective tube | Minimum wall thickness of outer protective layer |
| 500 | 30-60 | 580-640 | 5.6 |
| 630 | 30-60 | 710-772 | 6.6 |
| 710 | 30-60 | 790-850 | 7.2 |
| 800 | 30-60 | 885-950 | 7.9 |
| 900 | 30-60 | 980-1054 | 8.7 |
| 1000 | 30-60 | 1090-1155 | 9.4 |
| 1100 | 30-60 | 1190-1250 | 10.2 |
| 1200 | 40-100 | 1316-1436 | 11 |
| 1400 | 50-100 | 1538-1638 | 12.5 |
| 1500 | 50-100 | 1638-1738 | 12.5 |
Production line equipment Photos show
Rust Removal
PE film jacket wrapping
PE Jacket Water quenching
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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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