The Field Oil & Gas Pipeline Construction Crawler Welding Workstation

1. Product Introduction

WINCOO ENGINEERING CO.,LTD’s HG Series self‑propelled crawler welding workstation – commonly known as the Paywelder – is purpose‑built for long‑distance oil and gas pipeline construction in remote field environments. When laying pipelines in wastelands, deserts, or swamps without grid power, traditional methods struggle with power shortage, scattered equipment, and poor mobility. WINCOO Paywelder solves these problems by integrating a high‑power generator set, professional welding power source, high‑precision hydraulic lifting crane, and a proven off‑road chassis into one compact unit.

It is more than a welder – it is a mobile, all‑in‑one construction support centre that significantly improves on‑site efficiency while reducing equipment management and logistics costs.

2. Product Advantages

• Extreme All‑Terrain Mobility – The extended, heavy‑duty crawler chassis provides excellent load capacity and stability. It confidently handles oil fields, mountains, muddy swamps, and even high‑altitude oxygen‑poor environments.

• Integrated Power Output – Powered by a Cummins turbocharged diesel engine, it delivers stable, pure sine‑wave power, ensuring safe operation of precision welding controls.

• High‑Efficiency Coordination – An integrated high‑pressure air system drives sandblasting equipment directly, delivering perfect surface preparation before welding. A 360° independent hydraulic crane provides a 5‑ton lifting capacity.

• Low Operating Costs – The optimised hydraulic‑clutch travel system and high‑power, low‑fuel‑consumption engine can save up to RMB 50,000–100,000 per year in fuel.

• Life‑Cycle Reliability – Rigid chassis and globally sourced core components. The engine cooling system includes an air pre‑filter, and the machine operates in extreme temperatures from Russian winters to desert summers.

4. Applications

• Long‑distance trunk oil/gas pipeline construction – As a core mobile welding platform where no grid power or maintenance support is available.

• Storage tank and refinery construction – Welding large tank circumferential seams, used together with turning rolls or manipulators.

• Urban pipeline emergency repair – Low‑noise versions (<75 dB) suitable for night or city work (water supply, heating pipe repair).

• Clean energy infrastructure – Welding large outdoor steel structures for wind turbine foundations or solar PV brackets.

5. FAQ

Q1: Can the WINCOO HG series be customised?
A: Yes. WINCOO offers OEM services – e.g. different crane types (knuckle boom), 50/60 Hz power frequency, or custom painting.

Q2: Can it start and work in extremely cold winters?
A: Yes. The Cummins engine and reinforced cooling system include cold‑start devices for severe cold regions, proven on long‑term projects in Russia.

Q3: What is the warranty and after‑sales service?
A: Standard warranty is 1 year. WINCOO can dispatch engineers on‑site for installation, commissioning, and operator training to ensure reliable operation.

Q4: How does the HG series perform at high altitude?
A: The full‑hydraulic travel system is minimally affected by altitude. The engine air intake has a pre‑filter to remove sand/dust, keeping combustion efficiency high with very low power loss.

Q5: How long does the sandblasting nozzle last?
A: The special nozzle uses a quick‑connect locking structure – easy to install, wear‑resistant, and supports steel grit recycling, significantly lowering project cost.