Catalogues

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Round sleeve with a straight longitudinal seam—ideal for slip-fit ducts, light structural shrouds, or liners where a simple closed profile is assembled from flat strip.

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Cylindrical profile with an interlocking V-seam: the edges wrap and engage for a stiffer tube than an open gap, suited to visible round sections and medium-duty sleeves.

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Open-gap round section with a deliberate clearance along the seam for clamping, adjustment, or heat expansion while keeping a consistent outer diameter.

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Interlocking notched seam: tabs and pockets engage along the slit for alignment and extra shear resistance—useful when the sleeve must stay closed under handling loads.

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Roll-formed tube with pierced patterns or holes for weight reduction, airflow, or through-bolting—hole layout can be tailored to your fixing grid or airflow spec.

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Rectangular hollow profile produced from rolled strip with a controlled corner radius and longitudinal seam—similar usage to small RHS/ box sections in framing or covers.

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Tab-lock round sleeve: rectangular locking tabs engage along the seam for a positive mechanical bite before welding or riveting, helping assembly stay square during fit-up.

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Tube with multiple pierce stations in line—suited to sensor mounts, cable ties, brackets, or routing clips where repeatable hole spacing is needed along the length.

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Square or rectangular hollow section with a visible roll seam and uniform walls—good for enclosures, spacers, or guard rails where a box profile is required.

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Plain cylinder with a single straight seam gap and no interlock—lightweight option where parts are welded closed in house or retained by an outer clamp or band.

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Cylinder with paired openings on the surface for dual attachments, feeds, or inspection—geometry can be aligned for mirror brackets or opposing service ports.

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Band of square perforations along the roll-formed wall for screening, cooling airflow, or controlled lightening while keeping strip stiffness between openings.