Laser Cutting Machine

Four-Axis Dual-Laser Stent Cutting Machine for Ø0.3–16mm Tubes

Machine Model: #Four-axis · Dual laser
Stock: In Stock & Customizable

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Beipin four-axis dual-laser stent cutting machine: 200W single-mode fiber laser for thin walls and QCW single-mode laser for 0.5–2.0mm walls, Ø0.3–16mm tubes, 15–25μm kerf, X/Y/Z/θ full closed loop, dry and wet cutting. For 316L, cobalt alloy, nitinol and magnesium stents and precision tubes. Sample testing available....

Two lasers in one machine for thin and thick walls
Tube diameter Ø0.3–16mm, wall thickness up to 2.0mm
15–25μm kerf, about 12μm focal spot
Granite base, linear motors, four-axis full closed loop
Dry or wet cutting to reduce dross on the inner wall
Barcode recipe recall, run logs, MES connection

18100692808

This is Beipin's four-axis laser cutting machine for medical stents and precision metal tubes. One machine carries two lasers and two cutting heads. A 200W single-mode CW fiber laser cuts thin-wall stent tubing under 0.5mm with a 15–25μm kerf. A QCW single-mode laser cuts 0.5–2.0mm thick walls. Both heads share the same feed axis, rotary axis and collet, and the program switches heads by wall thickness, so changeover needs no re-clamping or beam realignment. It handles cutting, slotting, drilling and blind engraving, in dry or wet mode.

System layout: the PC sends the program and the four-axis motion controller fires both lasers by position

Two cutting heads, two jobs

Both heads sit on one Y/Z slide; the Y axis shifts to change heads (schematic)

	Laser 1: thin wall	Laser 2: thick wall
Wall thickness	≤0.5mm	0.5–2.0mm
Laser	200W single-mode CW fiber laser (IPG or equivalent)	QCW single-mode fiber laser, 300W average / 3kW peak (IPG or equivalent)
Beam quality	M²<1.1	Single-mode
Focusing lens	f=50mm	f=75–100mm (long depth of focus)
Focal spot	About 12μm	About 19–25μm
Kerf width	15–25μm	Increases with wall thickness; confirmed by test cuts
Main processes	Fine stent cutting, slotting, blind engraving, micro-holes	Thick-wall cutting, drilling, windows

Changing heads takes about 1 second of Y-axis travel. The offset between the two heads is calibrated with the CCD and stored in the software, and each program can specify which laser to use. Both lasers share one safety circuit, and only one can emit at a time.

Motion system and precision

Base	Stress-relieved welded steel frame with natural granite (grade 00 flatness)
X axis (feed)	Linear motor with linear scale, travel ≥500mm, speed ≥500mm/s
Y axis (head change)	Linear motor with linear scale, travel ≥100mm
Z axis	Precision ball screw, servo with brake, linear scale; positioning ±3μm, repeatability ±0.5μm
θ axis (rotation)	Hollow direct-drive motor with rotary encoder, 360° continuous, ≥600rpm, positioning ±10″, repeatability ±2″
Clamping	Pneumatic collets with quick-change sets for Ø0.3–Ø16mm; modular guide bushings
Feeding	≤500mm per stroke, up to 2500mm total length with support rack and V-type follower
Laser sync	Position-synchronized output (PSO) for even energy at corners and speed changes
Vision	Coaxial CCD, ≥120× on screen; motorized fine focus ≥±1.5mm

Materials and processes

Materials: 304 and 316L stainless steel, cobalt alloys, nitinol, magnesium alloys, titanium alloys, pure iron and other thin-wall precision tubes.
Processes: cutting, slotting, drilling and blind groove engraving on the tube surface (depth controlled by layered scanning); radial, vertical and compound openings.
Dry and wet cutting: wet mode runs water through the tube to reduce dross and back-wall damage; dry mode uses extraction. Heat-sensitive or flammable materials such as magnesium and nitinol are cut wet with inert gas, using a parameter library per material.
Speed: ≥6mm/s for thin-wall parts; thick-wall parameters are confirmed by test cuts.

Beipin tube cutting sample: notched end of a stainless steel tube

Checking the cut on an image measuring system (23.4×)

Traceability

Scan the work-order barcode to load the cutting program and laser, gas and water settings. Gas pressure, water pressure and path deviation are monitored, with alarm and pause on faults. A sensor at the feed end estimates remaining tube length and stops for a tube change. Run logs record quantity, program, laser settings, alarms and time, and can be sent to MES. Multi-level user permissions are included.

How to start

Send samples or drawings with material, diameter, wall thickness and cut pattern.
We choose the laser and process: thin or thick wall, dry or wet.
We cut samples and send micrographs of kerf, dross and heat-affected zone, plus measurements.
We confirm cycle time, fixtures and traceability needs.
You receive a proposal and quotation.

Information we need for a quote

Tube material, outside diameter and wall thickness, part length, cut pattern (stent design or hole drawing), kerf and tolerance requirements, wet cutting needed or not, volume, and MES connection.

Free sample test: send us your samples or drawings. We cut them and send back microscope photos and measurement data. WhatsApp: +86 186 1631 3040 | Contact us

FAQ

How narrow can the stent kerf be?

For thin walls, the 200W single-mode laser with an f50 lens gives a theoretical spot of about 12μm and a 15–25μm kerf. Final values depend on material and wall thickness and are confirmed by test cuts.

How do you cut nitinol and magnesium?

Both are heat-sensitive, and magnesium is flammable. We cut them wet with inert gas to reduce the heat-affected zone and oxidation. For even lower heat input, a femtosecond laser can be added.

Can it cut 2mm thick walls?

Yes. Walls of 0.5–2.0mm are cut by the QCW laser with a long depth-of-focus lens. Parameters are confirmed by test cuts.

How is it different from the Beipin precision four-axis tube cutting machine?

The precision tube cutting machine covers general cutting, drilling and parting of thin medical tubes. This machine is a high-end configuration for stents: two lasers, granite base, four-axis full closed loop, wet cutting and MES traceability.