SHJ355 Hdpe Butt Fusion Welding Machine 110-355mm

The SUNTECHMACH SHJ355 hydraulic butt fusion welding machine welds HDPE, PP and PVDF pipes from 110mm to 355mm (4"-14") with stable hydraulic control and accurate temperature management (max 270°C). Strong aluminum frame, easy operation and maintenance, designed for field applications.

Key Features

• Stable Hydraulic Pressure System — Consistent weld quality.
• Accurate Temperature Control — 3.5Kw heating plate, max 270°C.
• 8-Size Clamp Set Included — 160-355mm, full coverage.
• 2.5Kw Planing Tool — Powerful facing for mid-size pipe ends.
• Multi-Material — Welds HDPE, PP and PVDF.
• Field-Ready Design — Easy operation and maintenance on site.

Technical Specifications

What's Included

• 1x SHJ355 welding machine
• 1x Planing tool
• 1x Heating plate
• 1x Hydraulic unit
• Clamps set (160-355mm)
• 1x Operation manual + 12-month warranty card

Applications

• HDPE water supply pipeline projects
• Gas distribution pipelines
• Sewage and drainage systems
• Mining slurry and industrial pipelines
• PP / PVDF industrial pipe welding
• Municipal field jointing works

Packaging & Quality Assurance

Wooden / plywood case for export. ISO9001 quality system; every machine tested before shipment.

After-Sales Support

• 12-month warranty
• WhatsApp: +86-13777804353 ｜ Email: vivian@cnsuntech.com
• Spare parts supply for all SUNTECHMACH models

Operation Guide

• A. Pre-Weld Checks
1. Verify the pressure gauge, timer and temperature controller function correctly before welding.
2. Check the heating plate Teflon coating integrity; verify it reaches the set temperature.
3. Check the trimmer works properly and the blades are sharp enough to face the pipe end evenly.
4. Perform a test welding before production.
• B. 6-Phase Welding Procedure (per ISO 21307 / DVS 2207)
1. Phase 1 - Bead-up: approach both pipe ends to the heating plate at (P1 + Pt) pressure until the bead reaches the expected size.
2. Phase 2 - Soaking: reduce to maximum P2 pressure, keep the ends in touch with the heating plate for the full t2 time. The ends MUST NOT detach from the plate, otherwise the weld must be repeated.
3. Phase 3 - Plate removal: remove the heating plate within the maximum t3 (changeover) time without damaging the beads.
4. Phase 4 - Reach welding pressure: bring the ends together, gradually increasing pressure to (P5 + Pt) within t4.
5. Phase 5 - Welding: keep the ends together at (P5 + Pt) for the full t5 time.
6. Phase 6 - Cooling: keep the joint under pressure for t6; do not remove or strain the joint. Do NOT use water or compressed air to rush cooling.
• P1 = bead-up pressure; P2 = max soaking pressure; P5 = welding pressure; Pt = dragging pressure (read from the gauge with pipes clamped; add to all pressure values).
• C.Safety Notes
1. Earth the machine; the plug must meet IEC 309 type, IP44 minimum protection. Do not expose the machine to rain or liquids.
2. Wear safety glasses and gloves; keep a safe distance from the working trimmer and the hot heating plate.
3. Keep flammable material away from the heating plate and its support.
4. Unplug the machine from the power source immediately after use.

Common Faults & Solutions

FAQ

1. WHO ARE WE? — We are a professional pipe machine manufacturer in Hangzhou, China. Our team has worked in the pipe tool industry since 1989, and the company was registered in 2014. We are close to Shanghai, Ningbo and Yiwu ports, exporting mainly to North & South America, South Asia and the Middle East.
2. HOW CAN WE GUARANTEE THE QUALITY? — We always test at least one pipe on every machine before shipping. All our machines carry a 12-month warranty.
3. WHAT CAN YOU BUY FROM US? — Pipe threading machines, roll grooving machines, pipe cutting machines, pipe bending machines, plastic pipe welding machines, pressure test pumps and pipe tools.
4. WHY SHOULD YOU BUY FROM US? — We offer a full range of pipe tools; you can mix different models in one shipment. Multilingual support: English, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, Italian.
5. HOW LONG IS THE LEADTIME? — Usually 10-35 days after payment, depending on motor voltage customization.
6. HOW CAN YOU PLACE ORDER? — We accept T/T payment to our company account; online shop payment by credit card is also available.
7. HOW TO SHIP? — By sea to port for bulk orders; door-to-door delivery for small shipments.
8. WHAT IS THE MOQ? — No strict MOQ; however, we recommend an order amount of at least USD 2000 for cost-effective overseas shipping.
9. IS OEM ACCEPTABLE? — Yes. For bulk orders we can make nameplates and customized packaging in your brand.