Product Overview
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The BHLM series gantry-type automatic longitudinal & circumferential seam welding machine is mainly used for longitudinal seam welding of pressure-vessel shells after plate rolling, as well as circumferential seam welding of heads or flanges at both ends of the shell. The equipment consists of a gantry welding main unit, a driven roller bed, an integrated base, and a welding power source. It drives the workpiece to rotate via the roller bed while the welding torch remains relatively fixed for circumferential seam welding; for longitudinal seam welding, the workpiece stays stationary and the welding head on the gantry main unit travels laterally. With an added chuck-type positioner, it can also achieve automatic welding for pipe-to-pipe and pipe-to-fitting joints. It features multi-functionality in one machine, wide workpiece coverage, simple operation, and easy learning.
Product Brochure
Showcasing product details and real application scenarios from multiple angles
Welding Quality
Rigorous process standards ensure the reliability of every weld point
- Inspection Qualified: Good welding quality; weld seams pass RT/UT inspection;
- Mechanical Properties: Meets requirements for pressure tests or mechanical property inspections such as impact, tensile, and bending tests;
- Good Appearance: Attractive weld formation, free of defects such as porosity, undercut, cracks, slag inclusion, lack of penetration, and lack of fusion.
Product Specifications
Overview of model specifications and technical performance indicators
| Equipment Model | BHLM-1000 | BHLM-1500 | BHLM-2000 |
|---|---|---|---|
| Workpiece Diameter | Φ300-1000 | Φ300-1500 | Φ500-2000 |
| Applicable Materials | Carbon steel, alloy steel, stainless steel, etc. | ||
| Applicable Workpiece Weld Seams | Bevel circumferential seams, longitudinal seams, socket fillet welds | ||
| Welding Process |
TIG
Hot-wire TIG
GMAW
PAW
SAW
(One or multiple processes can be integrated as an option)
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| Welding Method |
Workpiece rotates; the torch swings left/right or does not swing to weld circumferential seams
Workpiece remains stationary; the head travels left/right and the torch swings front/back to weld longitudinal seams
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| Torch Fine Adjustment | X/Y/Z three-axis CNC welding oscillation system and worm-gear torch rotation mechanism | ||
| Control Method | WSP welding process expert database system, manual jog control / automatic program control | ||
| Basic Equipment Configuration | Gantry main unit + mobile welding head + roller bed + integrated base + welding power source | ||
| Optional Components |
Chuck flip-type positioner for pipe + fitting welding
Weld seam vision system
Weld seam laser tracking system
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※Due to ongoing product iterations and upgrades, and differences in operating conditions among users in different industries, the configuration and performance parameters are subject to the product order.
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