Laser-slotted filter tubes
Kaifil manufactures laser-slotted filter tubes with axial, circumferential, staggered or zoned patterns.
Product detailsDrawing-based manufacturing
Laser-perforated and slotted screens
Kaifil manufactures laser-perforated and slotted metal screens as discs, flat panels, framed screens and tubes. Programmed aperture patterns combine filtration, flow distribution and mounting features in one component.
- Forms
- Disc · panel · tube
- Patterns
- Round holes · slots
- Define
- Opening · pitch · wall
Metal filtration componentsLaser-drilled and slotted screen constructions
Construction
Opening geometry, support and finished form
- Product formsDiscs use a seating band around the active field. Panels align the field to the frame and fixing holes. Tubes locate the pattern axially and around the circumference relative to their end connections.
- Precision aperturesControl the opening on its specified measuring face. Hole diameter or slot width is paired with wall thickness, pitch and metal ligament; the finished field keeps defined solid edges for mounting.
- ConstructionSpecify straight or staggered patterns, axial or circumferential slots and cylindrical or tapered openings. A taper that widens towards the discharge side supports particle release during the selected cleaning flow.
- Finishing and inspectionStainless steel and special alloys are cut, formed and joined to your installation. We inspect working-face openings, pitch, cut edges, solid mounting zones and finished flatness or roundness.
- Pattern registrationDimension the first row and each active field from the installation datums. Mark no-cut borders, weld zones and tube clocking together with the aperture pattern.
01Product forms
02Precision apertures
03Construction
04Finishing and inspection
05Pattern registration
Define the aperture field in the manufacturing drawing
A laser-screen specification starts with the actual through-opening. For round holes, state diameter; for slots, state width, length and end shape. Identify the controlled working face, then define pitch, row layout and the solid metal between adjacent openings. These dimensions connect particle passage to the remaining wall.
Keep filtering holes separate from mounting holes and weld zones in the CAD drawing. A revision-controlled aperture map identifies each active region and its border. For tapered openings, identify the narrow face and its orientation in the selected process and cleaning flow.
Register the pattern to the installed part
A disc uses its outside diameter, center opening and seating band as installation references. A panel uses its outline and fixing pattern. A tube adds axial position and angular orientation to the opening map. Record these datums so the pattern meets the port, support and connection in the intended position.
Inspect the opening after the specified finishing and forming operations. Check cut edges on both faces, then check flatness or roundness, joints and solid connection zones. This links the laser-cut geometry to the component that actually fits the equipment.
Compare the three finished forms
Choose the construction for the fluid, particle load and installation.
| Construction | Application and fit | Confirm first | Find a product |
|---|---|---|---|
| Laser-drilled discs and flat screens | A compact removable seat needs a defined hole field and an unperforated sealing land. | OD/ID, working-face hole size, pitch, material, thickness and seating edge. | Filter matching products |
| Laser-slotted screen tubes | The opening pattern must run around a tubular wall or align with a cylindrical flow path. | Tube OD/wall, slot orientation, pitch, end zones, seam and end connection. | Filter matching products |
| Slotted panels and framed screens | A flat deck or equipment opening needs a slotted field plus structural mounting margins. | Panel outline, slot layout, clear opening, stiffeners, fixings and flatness. | Filter matching products |
Laser-perforated discs, slotted panels and filter tubes
Choose by finished geometry
Laser-drilled and slotted screen constructions
Kaifil manufactures laser-perforated and slotted metal screens as discs, flat panels, framed screens and tubes. Programmed aperture patterns combine filtration, flow distribution and mounting features in one component.
01
Laser-drilled discs and flat screens
Round-hole or custom-pattern discs with a solid seating edge and a defined working face.
View matching products →
02
Laser-perforated and slotted tubes
Cylindrical walls with round holes or slots, specified by opening, wall and end connection.
View matching products →
03
Slotted panels and framed screens
Flat slotted sheets with solid margins for framing, fasteners and stiffeners.
View matching products →Laser-perforated and slotted screens
Find a product
4 products
Laser-slotted screen panels
Laser-slotted metal panels with defined width, length, rounded or rectangular ends, open-area calculations, solid borders, supports and edge inspection.
Product detailsLaser-Perforated Stainless Steel Filter Tubes
Kaifil manufactures laser-perforated stainless steel tubes with round holes, straight or staggered rows and solid end bands.
Product details
Laser-perforated filter discs
The stainless laser-drilled screen series pairs 120–800 µm holes with 1.5–2.0 mm plate for polymer-melt screening.
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Clear filters
Specify a laser screen for quotation
Define the measuring face, complete aperture map, material thickness and finished connection together. Include the operating flow, pressure differential and cleaning direction with the controlled drawing.
Working-face opening
Round-hole options include Ø0.10, 0.20 and 0.50 mm. Pair the opening with stock thickness, pitch and ligament width; use thin stock for the fine-hole configurations.
Pattern and open area
Give longitudinal and transverse pitch, staggered or in-line rows and target open area. Dimension solid bands at seals, fasteners and joints.
Material and wall
Specify 304, 316L or the selected alloy, sheet or tube-wall thickness, surface condition and chemical exposure.
Finished geometry
Give disc OD/ID, panel outline or tube OD/length, including flatness, roundness, seam and end connections.
Aperture acceptance
Identify the measuring face and method, allowable taper, burr, dross and edge condition on both sides.
Operating duty
Provide fluid, target particles, flow, differential pressure, cleaning method and mechanical support.
Delivery condition
Specify a flat, formed or welded component. Define installation datums and connections in that condition; final dimensional tolerances apply after those operations.
Control the opening and the finished component
| Control | Drawing requirement | Functional link | Inspection |
|---|---|---|---|
| Through-opening | Hole diameter or slot width, length and ends | Defined passage geometry | Specified working face |
| Pattern position | Pitch, first-row datum and active-field outline | Flow port and support alignment | Registration to the finished outline |
| Solid metal | Ligament, border and no-cut bands | Load path and joining area | Continuous lands and edge condition |
| Finished geometry | Flatness, tube diameter and clocking | Installed fit and sealing | Final-condition dimensions |
Laser-perforated and slotted screens
Applications
Choose the construction for the fluid, particle load and installation.
Liquid strainer inserts
Perforated discs for removable seats and ports. Outside diameter, sealing land and flow direction determine the finished part.
Water polishing and membrane protection
Fine stainless screens form an upstream protection stage for sensitive components. Specify opening size, pressure drop and support together.
Dewatering screen panels
Hole or slot patterns in plates with solid mounting margins that preserve fixing space and stiffness.
Slotted screen tubes
Axial or circumferential slots in tube walls. Specify OD, wall thickness, slot orientation and end connections.
Inspection follows the controlled face and installed shape
Drawing-defined checks focus on the opening that governs retention and on the dimensions that locate the finished component.
01Opening and pitchMeasure the controlled hole or slot on the specified face, sample across the active field and verify pattern spacing.
02Both cut facesInspect burr, dross, local oxide and unintended bridging on both faces against the stated acceptance method.
03Solid mounting zonesCheck that seating bands, fixing holes and weld zones remain outside the active cut field.
04Finished conditionAfter forming or joining, check flatness or roundness, seam alignment and nearby openings. Measure the controlled face in the specified final delivery condition.
Related products
Laser-perforated filter discs
Laser-perforated filter discs carry a programmed hole or slot field within a solid seating edge. They are suitable for defined patterns that would be awkward to punch or weave.
Laser-slotted filter tubes
Laser-slotted metal tubes place a defined slot pattern directly in a cylindrical wall. They suit compact equipment where a woven liner or separately welded screen is difficult to fit.
Laser-slotted screen panels
Laser-slotted panels create drawing-defined passages in a metal sheet without a separate woven layer. Slot width, land width, sheet thickness and support govern the finished open area.
Laser-perforated and slotted screens
Technical resources
Technical guide
Etched, laser-cut or electroformed screens
Compare laser cutting, photo-etching and electroforming by feature geometry, thickness and material.
Etched, laser-cut or electroformed screens→Technical guide
Perforated open area and structural support
Relate hole pattern to opening area, ligaments and installed support.
Perforated open area and structural support→How to specify a custom metal filter
Prepare the controlled drawing, service conditions and acceptance requirements for a custom component.
How to specify a custom metal filter→Laser-perforated and slotted screens
Questions before ordering
How are a laser hole and a laser slot specified?
A round hole uses its diameter. A slot uses width, length and end shape, with its direction relative to the part datums. Both include pitch, sheet thickness and the controlled measuring face.
How is a tapered opening oriented?
The drawing identifies the narrow face and the widening direction. Place that geometry in the defined feed and cleaning directions, and measure the controlled opening on the specified face.
What CAD information sets the hole pattern?
Provide the outside contour, opening map, pattern pitch, active regions and solid borders under one drawing revision. Distinguish mounting holes and joining zones from the filtering field.
What extra information does a tube require?
Add finished diameter, wall thickness, axial pattern location, angular datum, end connection and solid end bands. These references position the openings relative to the equipment ports and supports.
What is inspected after finishing?
Measure opening geometry on the specified face, inspect both cut edges, and check pattern position, flatness or roundness and joints in the finished component.
Related products and guidance
Technical enquiry
Define the dimensions, media, joints and inspection records before confirming the order.