What is the output capacity, delivery time and warranty?

3-4 units per hour output; 60-80 day dispatch period after deposit confirmation; 12-month warranty with all-life after-sales support including on-site installation, operator training, and lifetime remote technical assistance.

Continuous PUR Spray PE Wrapping Pre-Insulated Pipe Production Line for District Heating

Name: Continuous PUR Spray PE Wrapping Pre-Insulated Pipe Production Line for District Heating
Brand: Qingdao Huashida Machinery Co., Ltd.
SKU: 2001201551

Shandong, ChinaQingdao Huashida Machinery Co., Ltd.

US$1,000,000.00-1,300,000.00

1 Piece

Product profile

Customization

Available

After-sales Service

All Life

Warranty

12 Months

Model NO.

Pre-insulated Pipe 508-1620 mm

Type

Polyurethane Foam Machine

Raw Material

Principle

High-Pressure Air Type

Automation

Automatic

Computerized

Certification

CE, ISO9001:2008

Turnkey Project

Yes

Application

Oil Gas Pipeline Thermal Insulation-Chilled Water

Pipe Structure

Carrier Steel Pipe-Polyurethane Foam-HDPE Casing

Capability

3-4unit/H

Period of Dispatch

60-80 Days

Operating Temperature

≤120°C (Peak ≤140°C)

Medium Pressure

≤2.5MPa

Water Absorption Rate

≤0.05% (Low Water Absorption)

Closed-Cell Ratio

≥88%

Foaming Thickness

30-100mm (Customizable)

Foaming Method

Continuous PUR Spray Foaming

Transport Package

Wooden Box

Specification

Pipe diameter 508-1620mm

Trademark

Huashida

Origin

Qingdao, China

HS Code

8477209000

Production Capacity

20 Units/Year

Key features

Continuous PUR Spray Foaming: >88% closed cell ratio and <0.05% water absorption. eliminating batch production gaps in district heating pre-insulated pipe manufacturing.

3-4 Units/Hour Output: Faster than standard single-station foaming lines, keeping large-scale district heating pipeline projects on schedule.

National Patented & Level 5 Certified: Multiple utility patents and third-party Level 5 rating, highest independent verification for pre-insulated pipe production lines in China.

Fully Turnkey Integrated System: Shot blasting, continuous PUR foaming, and PE wrapping in one matched line, no separate vendors, ready from day one.

Built for District Heating Networks: Trinity molding structure engineered for buried district heating service at <120 C and <2.5MPa pressure.

Company profile

Importers and ExportersFull CustomizationQuality AssuranceR&D Capabilities

Qingdao Huashida Machinery Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 22 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤7.80h

AI-Powered supplier vetting

SummaryQingdao Huashida Machinery Co., Ltd. is identified as a combined supplier producing mechanical equipment, plastic machinery, general machinery, and plastic products. It reports five production lines, six to ten quality-control staff, stated output of 70 plastic pipe extruder sets and 2,000 tons of heat-shrink sleeve annually, and order fulfillment within 15 working days in both peak and off-peak seasons. The supplier offers extensive customization, ODM services, and OEM services for well-known brands. Its after-sales commitment includes a 12-month installation-based guarantee, troubleshooting, spare parts, and free technical training, followed by lifelong service at the buyer’s expense. Export activity has continued for 21 years, with 51%–70% of sales from exports, primarily to Southeast Asia, the Middle East, and Europe. Evidence also shows valid contracts with associated subcontractors and written service-management procedures. However, no new products were reported in the past year, no SDK is...

Supplier typeThe supplier is classified as a combined company, with business activities covering wholesale of electrical equipment and the production and processing of plastic machinery, general machinery, and plastic products. Its primary offered product is identified as mechanical equipment, and the English company name is Qingdao Huashida Machinery Co., Ltd.

After-Sales capabilityThe supplier commits to a 12-month guarantee from installation, subject to a maximum of 14 months from delivery, with troubleshooting, qualifying spare parts, and free technical training during the warranty period. It also reports written and followed procedures for service-capability assessment and corrective/preventive actions, although the approved-supplier list lacks signatures or dates.

R&D capabilityThe supplier reports ODM capability and broad design-service support, but states that it had no new products in the past year and no available SDK. These facts show design and ODM service capability but do not demonstrate strong recent product innovation.

Production capacityThe supplier operates five production lines, has six to ten quality-control staff, and reports annual output of 70 plastic pipe extruder sets and 2,000 tons of heat-shrink sleeve. It also reports inventory capability, valid manufacturing contracts with associated subcontractors, and fulfillment within 15 working days in both peak and off-peak periods; however, finished-product inspection has instructions but no written records.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM services, supporting a broad stated ability to adapt products to customer requirements.

Client casesThe supplier reports providing OEM services for well-known brands and has exported for 21 years, with 51%–70% of sales from exports to Southeast Asia, the Middle East, and Europe. These statements indicate international and branded-customer experience, but no specific customer names, projects, or verifiable case details are provided.

Product Q&A

Q:What patents and technology certifications back this HDPE PE100 pipe extrusion line?

It holds multiple national utility patents, third party Level 5 technology rating, China's top independent tech verification for pipe extrusion machinery, plus Shandong Province First Set Technical Equipment award, credentials rarely offered by competing equipment.

Q:What industrial pipeline applications is this line specifically suited for?

Oil gas transmission pipeline thermal insulation, chilled water distribution networks, chemical fluid transport pipelines, industrial hot medium pipeline systems, and municipal district heating infrastructure, any buried industrial pipeline requiring factory-prefabricated PUR foam pre-insulated pipe.

Q:What foam quality does the continuous PUR spray process achieve?

Closed-cell ratio >=88% and water absorption rate <=0.05%, ensuring stable long-term thermal conductivity and structural integrity in harsh buried industrial pipeline service conditions where moisture ingress and foam degradation are primary failure risks.

Q:What pipe diameter range does this patented line cover?

508-1620mm carrier steel pipe diameter, producing trinity molding structure pre-insulated pipes (steel carrier pipe + PU foam insulation + HDPE PE casing) with 30-100mm customizable foaming thickness meeting EN253, GB/T29047, and CJ/T114 international standards.

Q:Is this a complete turnkey system for industrial pipeline projects?

Yes, Sa2.5 shot blasting, medium-frequency induction preheating, continuous PUR spray foaming, PE wrapping, and pipe end trimming are all integrated in one matched production line, eliminating separate vendor sourcing and integration risk for industrial pipeline insulation projects.