Addressing the Short Tailings Challenge in I-Beam Processing with LINGMAN 245 Precision Series

In the field of heavy industrial processing, the automated cutting of I-beams, H-beams, and C-channels has long faced a core technical pain point: material waste. Because traditional chucks cannot provide sufficient support and avoidance space near the end of the process, tens of centimeters of profile are often wasted. Addressing this industry-wide issue, LINGMAN has introduced a significant short-tailings solution through optimized jaw strokes and physical structures in its F245DF Precision Series and W220S rear chuck design.

Technical Logic of Material Utilization

The length of tailings in a laser tube cutting machine is typically determined by the physical distance from the center of the cutting head to the edge of the chuck jaws.

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  Front Chuck Single-Roller Mode: When front and rear chucks clamp simultaneously, the tailing distance is generally 125mm plus the clearance distance of the cutting head.

   

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  Front Chuck Double-Roller Mode: For higher stability requirements, this distance increases to 198mm plus the offset.

   

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  Rear Chuck Single Clamping: The LINGMAN 245 series reduces this limit to 27.5mm plus the necessary clearance, aiming to minimize raw material loss.

   

Selection Guide: I-Beam and Channel Steel Compatibility

For B2B procurement, the core of selection lies in the physical compatibility of the chuck with specific profile specifications.

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  Loading and Drive Capacity: The system utilizes a high-thrust cylinder with a 180mm bore , ensuring clamping stability even when processing maximum No. 20 I-beams or C-channels under high rotational inertia (5.2 $kg·cm^2$).

   

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  Jaw Design Principle: LINGMAN provides standard long and short jaw pairs (Long roller 240mm / Short roller 110mm) and supports custom No. 24 channel steel jaws.

   

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  Processing Flexibility: With a single-jaw stroke of 118mm , it supports a full processing range of $phi 6$-$phi 242$ mm. This allows the equipment to switch rapidly between different H-beam sizes without frequent jaw changes.

   

Consistency Through Engineering Standards

Solving the tailings issue must not come at the expense of cutting precision.

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  Transmission Accuracy: The F245DF utilizes Grade 6 precision ground helical gears with a 3:1 gear ratio, ensuring consistent power delivery.

   

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  Positioning Data: The repeat positioning accuracy is maintained within $<0.05$ mm , with a center height error of $315 pm 0.05$ mm.

   

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  Rotational Integrity: The rotation accuracy is better than 0.1mm , guaranteeing cutting quality for long profiles during high-speed rotation (up to 400 RPM depending on motor configuration).