Heavy-Duty Lifting Platform for Large-Diameter Pipe Longitudinal Seam Welding

The MH150 gantry-type welding platform is an industrial-grade lifting system designed for high-precision longitudinal seam (LS) welding on extra-large cylindrical workpieces such as wind towers, pressure vessels, or structural steel pipes. With a maximum lifting stroke of 7500 mm and platform span of 15 m × 9.8 m, it offers robust performance, high load capacity, and reliable operator safety systems.

System Overview

• Structure:
  The system is composed of two vertical columns (upper and lower parts), a lifting platform, lifting mechanism, dual-axis motorized slide modules, safety ladders, and a full electrical control system.

• Columns:
  Constructed with welded profiles and plates. The upper section includes vertical tracks for precise up/down platform travel. The design ensures excellent rigidity and structural balance.

• Lifting Platform:
  Made from profile and plate welded frame with anti-slip floor and three-side guardrails. The platform integrates:

  • Guide carriage with six sets of eccentric-adjustable guide wheels.

  • Fall arrest system that mechanically locks the carriage upon chain failure.

  • Two motorized slide units (300×300 mm) for welding torch installation, with rack and pinion linear guidance.

• Lifting Mechanism:
  Uses dual 3 kW AC brake motors with chain & sprocket drive system, equipped with counterweights for smooth and stable lifting.

Technical Specifications

Key Features

• Dual lifting motors with counterweight for smooth vertical motion

• Heavy-duty welded structure, suitable for large pipes up to 15 m in diameter

• Adjustable anti-drift guide wheel sets for precise vertical guidance

• Integrated fall-arrest safety mechanism

• Dual-axis sliding mechanisms for flexible welding torch positioning

• Designed to meet continuous duty (24/7) in high-humidity, coastal environments

WUXI KENKE mainly produces various welding auxiliary machines and special designed machines, with strong technical team and production capacity, products specifications, varieties, integration, serialization. KENKE also can make the special design, non-standard design according to users’ requirements. KENKE products have been widely used in wind power generation, boiler, petrochemical, metallurgy, machinery, shipbuilding and other industries, and exported to the Middle East, Southeast Asia, Europe, Australia and other countries.

KENKE adheres to the enterprise spirit of “Science and Technology Create Value, Honesty Create KENKE" and the enterprise style of “Down-to-Earth, Sincerity and Trustworthiness". Kenke Company has successively provided high-quality equipment for many users at domestic and abroad. Now KENKE is the governing unit of China Welding Association and the member unit of China Mechanical Engineering Society Pressure Vessel Branch.