The Critical Role of Flying Saws in Second-Hand Welded Pipe Machines​

Flying saws are indispensable components in second-hand welded pipe machines, directly determining the accuracy of pipe length cutting and the continuity of production. Their performance has a profound impact on product yield and downstream processing efficiency.​

Length Precision Control​

In second-hand welded pipe machines, high-performance flying saws achieve length cutting accuracy of ±1mm for pipes with diameters ranging from 20mm to 630mm. This precision is achieved through servo-driven synchronization with the moving pipe, eliminating length deviations caused by manual cutting or lagging mechanical systems. For applications like construction scaffolding or water supply pipelines, such accuracy reduces material waste by up to 8% compared to outdated saw systems.​

Production Continuity Assurance​

Unlike static saws that require stopping the pipe production line for cutting, flying saws in second-hand welded pipe machines operate while the pipe is in motion. This non-stop cutting capability maintains the production line speed (typically 30-120m/min for ERW pipes), increasing overall throughput by 25-35%. It also avoids pipe deformation caused by frequent start-stop cycles, a common issue in second-hand equipment with aging drive systems.​

Cutting Quality Optimization​

Modern flying saws in refurbished second-hand welded pipe machines are equipped with carbide-tipped blades and coolant systems. The blades ensure clean, burr-free cuts (burr height ≤0.1mm) that meet industry standards such as DIN EN 10217, eliminating the need for secondary deburring operations. The coolant system not only extends blade life by 40% but also prevents thermal deformation of the pipe end, which is critical for pipe threading or flange welding in subsequent processes.​

Maintenance and Calibration Tips​

To maintain optimal performance of flying saws in second-hand welded pipe machines:​

• Conduct daily inspections of blade wear and coolant flow rate; replace blades when the cutting edge wear exceeds 0.5mm.​

• Perform weekly calibration of the synchronization encoder to ensure speed matching with the pipe line.​

• Check the saw carriage guide rails monthly for wear; lubricate with high-temperature grease to reduce friction.​

• Overhaul the servo motor and gearbox every 6 months to prevent unexpected breakdowns.​

Upgrading the control system of flying saws in older second-hand welded pipe machines to a PLC-based system can further improve cutting accuracy and reduce maintenance frequency, with a typical payback period of 8-12 months.​

For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com​

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