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Precision HDPE Welding Solutions for Global Infrastructure

QINGDAO DOWI TECHNOLOGY CO., LTD – Trusted manufacturer of HDPE butt fusion machines, electrofusion machines, workshop fitting machines, and HDPE fittings. Over 15 years of innovation, ISO-certified quality, and global delivery.

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15+ Years Experience

Proven engineering and manufacturing excellence in HDPE welding technology.

60+ Countries

Trusted by contractors and municipalities worldwide.

ISO-Certified

Strict quality control from design to delivery.

About DOWI Technology

QINGDAO DOWI TECHNOLOGY CO., LTD is a leading manufacturer and exporter specializing in the research, development, and production of HDPE butt fusion machines, electrofusion machines, workshop fitting machines, and HDPE fittings. With more than 15 years of industry experience, we have built a solid reputation for delivering high-quality products and reliable solutions to customers worldwide.

At DOWI TECHNOLOGY, professionalism is at the heart of everything we do. We maintain strict quality control throughout every stage of manufacturing, from material selection to final testing. Our products are engineered to meet international standards and are widely used in industries such as water supply, gas distribution, mining, and construction projects across different continents.

High-Quality, Durable Products
Tailored Technical Support
Fast Global Delivery
End-to-End Solutions
DOWI Technology Factory

Why Choose DOWI Technology?

We don’t just sell machines — we deliver confidence in every joint, every project, every continent.

15+ Years of Experience

We know what works — and what lasts. Proven technology backed by real-world performance.

High-Quality & Durable

Precise engineering, strict QC, and ISO standards ensure fewer failures and longer equipment life.

Tailored Solutions

From product selection to on-site support, we provide end-to-end solutions that save time and reduce costs.

Trusted Worldwide

DOWI machines are running in over 60 countries. Fast delivery, responsive service, real results.

Our Products

Engineered for precision, durability, and performance in the most demanding environments.

DW160/200/250 HDPE Butt Fusion Machine

DW160/200/250 HDPE Butt Fusion Machine

Compact, efficient, and ideal for small to medium pipe diameters. Perfect for water and gas pipeline projects.

$25 - $50
DW315/355 HDPE Butt Fusion Machine

DW315/355 HDPE Butt Fusion Machine

High-pressure fusion for larger diameter pipes. Designed for industrial and municipal applications.

$25 - $50
DW400-800 HDPE Butt Fusion Machine

DW400/450/500/630/800 HDPE Butt Fusion Machine

Heavy-duty fusion equipment for large-scale infrastructure. Hydraulic drive, stable performance.

$25 - $50
DW160/200/250 Manual Butt Fusion Machine

DW160/200/250 Manual Butt Fusion Machine

Lightweight and portable. Ideal for field repairs and remote installations.

DWE315/400/450 Electrofusion Machine

DWE315/400/450 Electrofusion Machine

Precision-controlled electrofusion for leak-free joints. Digital interface and safety protection.

DWF315 Workshop Fitting Machine

DWF315 Workshop Fitting Welding Machine

Designed for factory environments. High accuracy and repeatability for mass production.

DWF450-1200 Workshop Fitting Machine

DWF450/630/800/1000/1200 Workshop Fitting Machine

Industrial-grade machine for large fittings. Robust frame and automated operation.

DWC315/630/800/1000 Electrofusion Fittings

DWC315/630/800/1000 Electrofusion Fittings

High-density polyethylene fittings with embedded heating wires for secure, automated fusion.

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15+
Years of Experience
60+
Countries Served
ISO
Certified Quality
1000+
Machines Delivered

Frequently Asked Questions

What types of HDPE welding machines do you offer?

We offer HDPE butt fusion machines, electrofusion machines, and workshop fitting welding machines for pipe diameters from 160mm to 1200mm.

Are your products ISO certified?

Yes, all our machines and fittings are manufactured under strict ISO-certified quality control processes.

Do you provide technical support?

Yes, we offer comprehensive technical support, including installation guidance, training, and troubleshooting.

How fast is delivery?

We offer fast global shipping. Most orders are dispatched within 7–15 business days depending on customization.

Can you customize machines for specific needs?

Yes, we provide tailored solutions based on project requirements, including voltage, pressure, and control system preferences.

Get in Touch

Have questions about our HDPE welding machines or fittings? Reach out to our team for expert support.

Contact: Sienna D
Phone: 15253235539 / 15275202098
WhatsApp: 86-15253235539
Email: [email protected]
Address: High-tech Zone, Qingdao, Shandong, China
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