Industries such as offshore engineering, port machinery, and mining rely heavily on massive steel structures that are often oversized, irregular in shape, and extremely difficult to process in conventional workshops.

For these challenges, on-site machining has become the optimal solution. Our LMD Series Portable Gantry Milling Machines perfectly combine the high rigidity and precision of traditional machine tools with the flexibility of modular design, making them the true answer to complex field machining needs.

Modular Design

One of the core advantages of the portable gantry milling machine lies in its modular construction. From the bed and tool arm to the milling spindle head and power unit, each component can be quickly assembled and flexibly adjusted.

  • Need to machine a long weld seam on a port crane?

  • Need to work on a foundation structure in offshore engineering?

  • Need to mill on a vertical surface?

  • Need adjustable machining widths from 100 mm to 3000 mm?

The LMD Series is designed with field complexity in mind. By integrating the concepts of both line milling and gantry milling, it allows operators to configure the system freely according to the site conditions—delivering maximum flexibility without sacrificing stability or precision.

High Rigidity for Harsh Conditions

On-site machining rarely happens under ideal workshop conditions. It often takes place on windy docks, noisy shipyards, dusty mining sites, or uneven ground. In such environments, rigidity is absolutely critical.

The LMD Series is engineered with:

  • High-strength beds and precision-machined beams

  • A vibration-resistant, anti-deformation structural design

Which ensures:

  • Stable performance during extended heavy cutting operations

  • Reduced vibration and chatter, extending tool life

  • Reliable accuracy, ensuring every part meets strict tolerance requirements

Multi-Angle Mounting for Irregular Structures

Many large steel structures are far from flat. Offshore platforms, port cranes, and mining machinery often include angled, curved, or vertical surfaces.

The LMD Series features a flexible clamping system that allows secure mounting at multiple orientations—horizontal, vertical, or inclined. This not only expands machining possibilities but also improves safety and efficiency in complex projects.

Wide Applications in Key Industries

Thanks to its adaptability and reliability, the LMD Series has become the ideal solution across multiple industries:

  • Offshore Engineering: On-site milling, slotting, and drilling of massive welded structures such as platforms and subsea modules—without dismantling.

  • Port Machinery: Refurbishment and modification of cranes and handling equipment, improving accuracy and minimizing downtime.

  • Mining Machinery: On-site restoration of excavators, crushers, and steel frames, avoiding long equipment shutdowns.

  • Petrochemical Industry: A typical application is machining motor mounting bases.

Closing the Gap in Modern Manufacturing

The portable gantry milling machine fills the gap left by conventional workshop tools, enabling precise machining of oversized, fixed, and complex structures directly on site. It helps industries:

  • Reduce costs by eliminating disassembly and transport

  • Minimize downtime through faster on-site repair and modification

  • Ensure accuracy even in harsh working conditions

More than just a machine, it is a strategic solution driving manufacturing toward smarter, more flexible, and more efficient production.