AQT-SC4 Ultra-fast femtosecond laser cutting machine for medical stents
AQT-SC4 Ultra-fast Femtosecond Laser Cutting Machine – ultra-precision cutting for medical stents
The AQT-SC4 is an ultra-fast femtosecond laser cutting machine developed specifically for medical stent production. Equipped with infrared and green femtosecond laser sources, it ensures extreme precision and minimal thermal impact. With 4-axis motion control, it processes thin-walled tubes across a wide range of diameters and materials, making it suitable for both metal and non-metal stents.
The machine combines ultra-fast speed with continuous automatic feeding, significantly improving productivity while maintaining stable accuracy. Advanced software control and optional real-time monitoring guarantee consistent cut quality, even on highly complex geometries.
Scope of application
The AQT-SC4 is designed for laser micromachining of stents used in various interventional medical devices, including intracranial, thrombectomy, neurointervention, peripheral stents, and stone baskets. It is capable of processing both metal and polymer materials with equal efficiency.
Advantages:
- Dual laser modes: infrared and green femtosecond for flexible processing
- Supports equal-diameter tubes, reducer tubes, and flat instruments
- Wide material compatibility: stainless steel, Ni-Ti, L605, iron, magnesium, zinc, PLA, PLLA, PI, nylon, glass
High finishing
The AQT-SC4 delivers ultra-high finishing quality required for medical stent production.
- Cutting seam width less than 20 µm
- Machining accuracy ≤ ±5 µm
- Smooth, burr-free incisions with extremely small heat-affected zones
- High processing efficiency: one-time cutting through tube wall, continuous automatic feeding
Strong adaptability
The AQT-SC4 supports multiple processing modes, including dry cutting, wet cutting, drilling, blind slot digging, and complex opening geometries such as centripetal, vertical, and compound types. It works seamlessly with equal-diameter and reducer tubes as well as flat instruments.
Clamping systems include D-type collets, ER series collets, and three-jaw chucks, ensuring stable fixation during machining. Adaptive support for thin-walled tubes allows reliable processing of sensitive micro-structures without deformation.
Flexible design
- Ergonomic and compact design
- Optional machine vision system for real-time online monitoring
- Closed optical path and precision laser cutting head for high stability
- Flexible configuration for intelligent production management
Technical certification
The AQT-SC4 complies with ISO 9001 and ISO 13485 certifications, ensuring high manufacturing quality and reliability for medical device production.
Sample display
Processing Materials:
- Metal: 316L Stainless Steel, Ni-Ti Alloys, L605, Iron (Fe), Magnesium (Mg), Zinc (Zn)
- 316L Stainless Steel is a medical-grade austenitic chromium-nickel alloy renowned for its excellent corrosion resistance and biocompatibility. With a tensile strength of approximately 485–550 MPa and elongation up to 40%, it offers durability and flexibility without brittleness. Its low carbon content enhances weldability and resistance to intergranular corrosion, making it ideal for medical implants and instruments. Laser-machined for smooth, burr-free surfaces, it minimizes tissue irritation in sensitive applications.
- Nitinol (NiTi), a nickel-titanium alloy, is renowned for its superelasticity and shape memory, making it a game-changer in medical applications. With a tensile strength of up to 1200 MPa and elastic modulus of 40–75 GPa, nitinol excels in demanding environments.
- Cobalt-Chromium Alloys (L605) are medical-grade materials valued for their exceptional strength, corrosion resistance, and biocompatibility. With tensile strength ranging from 800–1500 MPa and hardness of 300–550 HV, they ensure durability in demanding medical applications. Ideal for implants and surgical tools, they support direct tissue contact with minimal reaction. Laser-machined surfaces provide smooth, burr-free finishes, enhancing performance in sensitive procedures.
- Iron (Fe): A strong, durable metal used in some surgical instruments and structural components. Its high strength and cost-effectiveness make it suitable for non-implantable medical tools.
- Magnesium alloy: Magnesium, a lightweight (1.74 g/cm³) and biodegradable metal, is ideal for temporary medical implants like stents and orthopedic screws. Alloys such as WE43 or JDBM offer tensile strength (200–420 MPa) and controlled degradation (6–24 months), safely dissolving into non-toxic byproducts (Mg²⁺ ions). Its biocompatibility (ISO 10993) and ability to support tissue regeneration make it suitable for cardiovascular and bone repair applications. Magnesium’s elastic modulus closely matches bone, minimizing stress shielding in orthopedic uses.
- Zinc (Zn) Zinc is a promising bioresorbable metal with excellent biocompatibility and corrosion control. In medical applications, zinc-based alloys are used for stents and implants, providing mechanical strength while gradually resorbing in the body without toxic effects.
- Non-Metal: PLA, PLLA, PI, Nylon, Glass
- PLA (Polylactic Acid) A biocompatible and biodegradable polymer derived from lactic acid. Commonly used for resorbable medical implants and stents.
- PLLA (Poly-L-Lactic Acid) A biodegradable medical polymer with high mechanical strength and predictable degradation. Applied in bioresorbable vascular stents and surgical sutures.
- PI (Polyimide) A heat-resistant and durable polymer with excellent chemical and mechanical stability. Used in catheters, micro-instruments, and insulation of medical devices.
- Nylon (Polyamide): Nylon (Polyamide) is a strong, flexible material with high wear resistance and chemical stability. Ideal for precision laser cutting, it delivers smooth edges and intricate designs for medical and engineering components.
- Glass An inert, transparent, and biocompatible material. Utilized for micro-tubes, capillaries, and precision medical components requiring chemical resistance.
- Other Metal and Non-Metal Materials
Clamping Systems:
- Precision D-Type Collets
- ER Series Collets
- Three-Jaw Chucks
Laser Type and Specifications:
- Infrared & Green Femtosecond Lasers
- Wavelength: 1030nm~1070nm±10nm & 532nm±10nm
- Power Options: 10W, 16W, 20W
Scope of Use
- Laser Micromachining of Metal & Non-Metal Medical Stents:
- Intracranial Stents
- Thrombectomy Stents
- Neurointervention Stents
- Peripheral Stents
- Stone Basket Stents
Processing Capabilities
- Laser Dry Cutting, Wet Cutting, Drilling, and Blind Slot Digging
- Centripetal, Vertical, and Compound Opening Features for Equal Diameter and Reducer Tubes
- Precision Cutting Seam Width: 15~25 μm
- High Accuracy: ≤ ±5 μm
Industries Served
- Interventional Medical Equipment Manufacturing
Performance and Efficiency
- Maximum Operating Speeds:
- X-Axis: 500 mm/s
- Y-Axis: 100 mm/s
- Z-Axis: 100 mm/s
- θ-Axis: 600 rpm
Versatility
- Machining Wall Thickness: 0~0.5 ± 0.02 mm
- Clamping Pipe Diameter:
- 0.1~7.5 ± 0.02 mm
- 0.3~16.0 ± 0.02 mm
- 1.0~30.0 ± 0.02 mm
- Tube Blank Length: <2.5 m (customizable for longer lengths)
Flexibility and Customization
- Continuous Automatic Feeding Processing
- Compatible File Formats: DXF, DWG
- Supports 2D, 2.5D, and 3D CAM Software for Precision Micromachining
Certified Quality
- ISO9001, ISO13485 Certifications
User-Friendly Design
- Ergonomic Machine Design
- Real-Time Monitoring with Machine Vision System
- Closed Optical Path System for Stability
- Intuitive Software Interface for Easy Operation
