Main Features & Advantages
Factory-level Manufacturing & Quality Control — as an ERW welded pipe equipment factory, our production processes adhere to strict tolerances and quality inspections.
Stable High-Frequency Welds — uses advanced solid-state high-frequency welding, delivering uniform weld seams and high mechanical strength. :contentReference[oaicite:5]{index=5}
Flexible Pipe Range & Shapes — supports wide diameter range and optional square/rectangular pipes.
Automation & Digital Control — PLC + HMI control for welding current, speed, cut length, fault alarms, and system monitoring.
Quick Roll Change Mechanism — minimizes downtime, enhances line uptime.
Energy Efficiency & Optimized Design — power circuits and components are optimized to reduce energy loss.
Robust Framework & Durability — heavy-duty frame ensures long-term alignment, vibration resistance, and reliability.
FAQ – Frequently Asked Questions
Q:What diameter and thickness can HG140 line handle?
A:The standard range is 50–140 mm OD, thickness 2.0–8.0 mm.
Q:Is your company a manufacturer or trading company?
A:We are an ERW welded pipe equipment factory, handling R&D, production, quality control, and direct sales, ensuring reliability and support.
Q:Do you provide installation, commissioning & training?
A:Yes. We provide full services including overseas installation, commissioning, operator training, and after-sales support.
Q:What is the warranty & maintenance policy?
A:We offer standard warranty periods (e.g. 12 months), spare parts support, and maintenance guidelines. Preventive maintenance training is included.
Uncoiler:Heavy-duty uncoiler from our ERW welded pipe equipment factory ensures stable feeding of wide steel strips, supporting 24-hour continuous production for your factory.
Shearing and welding:600KW high-frequency welding unit (core part of HG140 from our ERW welded pipe equipment factory) ensures strong welds for large-diameter pipes, meeting factory quality standards.
Accumulator
Forming, high-frequency welding, external burr removal, cooling, sizing, rough straightening
Flying sawing cutting:High-precision cutting matches the factory’s batch production rhythm, avoiding waste and improving production efficiency.
Roller after sawing
Inspection and collection
Packing
Weighing
Marking
Storage
| Item name | Technical Parameters |
| Raw material | Low carbon steel, low alloy steel, galvanized steel strip, high strength steel, etc. |
| Total power | About 800KVA |
| High frequency welding machine | 500KW |
| Roll weight | ≤10T |
| Round tube | Φ50～φ140mm，Tube thickness:2.0～6.0mm |
| Square tube | 40X40～110X 110mm，Tube thickness: 2.0～5.5mm |
| Rectangular tube | 30x50～90x130mm，Tube thickness:2.0～5.5mm |
| Tube mill speed | 20～70m/min |
| Tube length | 4-12m |
| Recommended plant dimension | 110m×18m×6m (≥6m; Distance from overhead crane track to ground) (Customized design can be made according to the customer's workshop） |
ERW Welded Pipe Equipment Factory - Great Wall’s Full-Service Support
Pre-sales service: Professional team from our ERW welded pipe equipment factory provides on-site workshop survey, customizes HG140 line layout according to your factory size, and offers detailed production cost analysis.
In-sales service: Our factory sends engineers to guide equipment installation and commissioning, ensures the HG140 line is put into production within the agreed time, and provides operator training for your factory staff.
After-sales service: ERW welded pipe equipment factory provides warranty for HG140 core parts, 24-hour technical support, and lifelong maintenance guidance, solving your factory’s after-sales worries.
