What is a bench type large pipe CNC plasma cutting machine?

What is a bench type large pipe CNC plasma cutting machine?

A bench type large pipe CNC plasma cutting machine is a heavy-duty automated cutting system designed for profiling large-diameter round pipes. The YOMI YM-LBP model is built on a bench-type frame with a floating chuck box and roller brackets, making it easy to load pipes without manually adjusting roller spacing. It combines CNC-controlled plasma and flame (oxy-fuel) cutting to handle pipe diameters from 219 mm up to 2,000 mm, depending on the configuration, with effective cutting lengths up to 12,000 mm. The machine is widely used in marine offshore engineering, oil pipelines, petrochemical plants, and other heavy industries that need precise, weld-ready cuts on large pipes.

How does a CNC plasma pipe cutting machine work?

The machine works by clamping the pipe in a chuck and rotating it under a CNC-controlled cutting torch. The operator inputs cutting parameters or imports a design from Tekla, 3D3S, AutoCAD, or SolidWorks, and the YOMI PIPE control system running on an Advantech IPC generates G-code automatically. For plasma cutting, an electric arc ionizes compressed gas into a high-velocity plasma jet that melts the metal and blows the molten material away along the programmed path. The torch can move horizontally along the pipe axis (X-axis), swing radially (A-axis ±55°) and axially (B-axis ±60°), and raise or lower (Z-axis) to follow the pipe surface. The pipe itself rotates 360° on the Y-axis. This multi-axis motion allows the machine to cut straight ends, bevels, saddle shapes, branch intersections, and mitered elbows in a single setup.

What pipe sizes and thicknesses can the YOMI YM-LBP handle?

The YOMI YM-LBP bench type large pipe CNC plasma cutting machine offers three standard diameter ranges: 219–1,210 mm, 325–1,620 mm, and 630–2,000 mm. The effective cutting length is 12,000 mm, and the machine can support pipes weighing up to 10,000 kg. Wall thickness capacity depends on the cutting method: plasma can perforate cut from 1 mm to 38 mm and bevel cut from 1 mm to 26 mm, while flame cutting handles vertical cuts from 6 mm to 60 mm and bevel cuts from 6 mm to 40 mm. The bevel angle reaches ±45° for plasma and up to 60° for flame. This wide capacity makes it suitable for offshore piles, jacket legs, transmission pipelines, and other large tubular structures.

What are the advantages of CNC pipe cutting over manual cutting methods?

CNC pipe cutting offers significant advantages over manual oxy-fuel cutting, band sawing, or grinding. First, accuracy is much higher: the YM-LBP achieves cutting length accuracy of ±1.5 mm and requires workpiece ovality within 1%, producing ISO 9013-2002 and JB/T10045.4-1999 compliant cut surfaces. Second, productivity increases because cutting speeds range from 10 to 2,000 mm/min with rapid traverse up to 6,000 mm/min. Third, complex profiles such as oblique crossings from 15° to 170°, branch pipe intersections, and multi-branch nodes can be cut automatically without skilled manual layout. Fourth, the floating 3-jaw chuck keeps the pipe center height stable without moving the pipe, improving cut quality on large diameters. Finally, direct import from Tekla and SolidWorks eliminates manual programming errors and reduces preparation time.

What software is compatible with the YOMI YM-LBP large pipe cutting machine?

The YOMI YM-LBP supports direct import from major structural design and engineering software including Tekla Structures, 3D3S, AutoCAD, and SolidWorks. The control system can convert these files directly into G-code, which eliminates the need for the operator to write programs manually. The software also includes a curve library for common pipe fitting shapes and supports automatic compensation for pipe ovality. This high compatibility is especially valuable for steel structure and offshore projects where models are already created in Tekla or 3D3S, allowing the cutting program to be generated from the same digital model used for fabrication.

What industries use bench type large pipe CNC plasma cutting machines?

Bench type large pipe CNC plasma cutting machines are used in industries that process heavy, large-diameter tubular components. Key applications include marine and offshore engineering for platform jackets, piles, and pipe racks; oil and gas pipeline construction for long-distance transmission lines; petrochemical plants for process piping and pressure vessels; shipbuilding for hull structures and marine piping; and steel structure fabrication for large trusses and stadium roofs. The YOMI YM-LBP is specifically designed for these demanding environments, with a maximum pipe weight capacity of 10,000 kg and the ability to cut pipes up to 2,000 mm in diameter.

How much does a large pipe CNC plasma cutting machine cost?

Pricing for large pipe CNC plasma cutting machines varies widely based on diameter capacity, cutting length, axis configuration, and automation level. Entry-level 3-axis CNC pipe cutters for small-diameter pipes typically start around 30,000 to 60,000 US dollars. Mid-range machines with full profile cutting and beveling capabilities range from 80,000 to 150,000 dollars. Heavy-duty bench type systems like the YOMI YM-LBP, which handle pipes up to 2,000 mm diameter and 12,000 mm length with multi-axis plasma and flame cutting, fall into the higher price bracket due to their reinforced structure, Panasonic servo drive system, floating chuck mechanism, and advanced control software. Buyers should also consider total cost of ownership, including installation, plasma consumables, power supply, and ongoing maintenance.

How to maintain and troubleshoot a CNC plasma pipe cutting machine?

Regular maintenance is essential for keeping a large pipe CNC plasma cutting machine accurate and reliable. Key practices include lubricating guide rails and lead screws, checking Japan Panasonic servo motor and drive connections, inspecting the floating chuck mechanism for wear, cleaning metal dust from the electrical cabinet, and replacing plasma consumables such as nozzles, electrodes, and swirl rings before they degrade cut quality. The machine should be operated in temperatures between -20°C and 50°C with stable 50/60 Hz power. If cutting accuracy declines, check for mechanical backlash in the chuck or carriage, verify torch height calibration, and confirm that pipe ovality compensation is enabled. Because the YM-LBP uses an Advantech industrial PC controller, remote diagnostics are often possible, reducing the need for on-site service visits.

Technical Specifications of Bench Type Large Pipe CNC Plasma Cutting Machine

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Applications

The Bench Type Large Pipe CNC Plasma Cutting Machine is widely applied in steel structure prefabricated buildings, bridge and infrastructure construction, shipbuilding and marine engineering, heavy machinery manufacturing, power plant and industrial facilities, and offshore wind power structures.

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For more information about Bench Type Large Pipe CNC Plasma Cutting Machine and other steel structure intelligent equipment, contact YOMI CNC Cutting & Welding Machinery. Our team of experts is ready to help you find the best solution for your manufacturing needs.