Sanluo Precision is a manufacturer and supplier specializing in lmicro machining in China. The company primarily provides users with high-precision, high-efficiency, and customized laser beam machining services. Laser beam machining utilizes a high-energy-density laser beam to remove or alter materials; it offers numerous advantages, including non-contact processing, a minimal heat-affected zone (HAZ), high processing precision, rapid speeds, and a high degree of automation.
Our customized services encompass ultrafast micro-laser cutting, precision laser micromachining, precision laser welding, laser welding for medical devices, laser engraving and shaping, and more. We are capable of processing various metals—such as stainless steel, carbon steel, aluminum alloys, and copper alloys—as well as materials like ABS, PC, acrylic, ceramics, glass, and composites. Over the years, we have provided professional solutions and high-quality custom manufacturing services to clients in the precision parts manufacturing and product sectors. We are fully equipped to handle the customization of complex and challenging parts.
A company positioned to provide high-precision laser beam machining services must possess a mastery of processing techniques for a wide range of materials and guarantee dimensional stability. Sanluo Precision’s manufacturing facility possesses mature technical expertise in the fields of micro-laser cutting, precision laser micro-drilling, precision laser welding, laser welding for medical devices, and laser micromachining. We have accumulated extensive processing experience and process-specific data. CO₂ lasers are suitable for processing non-metals and thin metal sheets; fiber lasers are ideal for high-efficiency metal cutting; and UV lasers and femtosecond lasers are best suited for ultra-fine processing applications, such as precision marking, micro-laser cutting, and precision laser micromachining. By judiciously selecting the appropriate wavelength, power output, and focal spot size—while ensuring a narrow kerf and a heat-affected zone of less than 0.03 mm—we are able to keep part deformation within extremely tight tolerances, thereby providing robust support for high-precision machining operations.
If a laser cutting machine lacks sufficient working area, power output, or precision stability, it is impossible to provide clients with comprehensive, customized services. Sanluo Precision is equipped with fiber laser cutting machines featuring power outputs ranging from 3 kW to 12 kW and a working area of 3000 × 1500 mm. These machines are capable of cutting stainless steel up to 25 mm thick, carbon steel up to 30 mm, and aluminum alloys up to 20 mm, producing a kerf width of 0.01–0.03 mm and achieving a dimensional accuracy of ±0.005 mm. For laser welding, we utilize both pulsed and continuous fiber laser systems to join sheet materials ranging from 0.01 mm to 0.5 mm in thickness. These systems produce weld seams with a width of 0.02–0.2 mm and a heat-affected zone of less than 0.01 mm, making them ideal for precision laser welding applications—such as in medical equipment manufacturing—where high demands for structural strength and airtightness are paramount. Laser marking capabilities allow for calibration scales with an accuracy of ±0.01 mm, as well as the creation of permanent markings with character heights ranging from 0.2 mm to 50 mm.
We utilize laser beam machining equipment featuring small-diameter spot sizes, which effectively meets stringent requirements for dimensional tolerances and surface quality. Sanluo Precision employs CAD/CAM programming and path optimization techniques to control the laser spot diameter within a range of 0.01–0.5 mm, achieving a positioning accuracy of ±0.001 mm and a cutting accuracy of ±0.005 mm. Cutting speeds can reach approximately 15 m/min for 3 mm stainless steel sheets and 25 m/min for 2 mm carbon steel sheets—5 to 10 times faster than traditional shearing or stamping methods. Since production can proceed directly from CAD drawings without the need for custom molds, the lead time for multi-variety, small-batch prototyping is significantly reduced. As a non-contact process, laser beam machining eliminates mechanical stress and tool wear; the resulting cut edges are straight and virtually burr-free, meaning that most laser-machined parts require no secondary finishing, thereby enhancing delivery efficiency.
Laser beam machining is capable of doing more than just cutting the contours of sheet materials; it can also perform multi-angle and multi-position cutting on tubular and solid rod materials. Furthermore, it enables the intricate engraving and shaping of internal cavity structures and cylindrical rotational bodies. As such, it serves as a revolutionary technological complement to the traditional mechanical machining industry. Sanluo Precision provides laser contour cutting services for stainless steel and aluminum alloy mobile phone frames used in electronic products, achieving a dimensional accuracy of ±0.003 mm and ensuring smooth cut edges. We also offer laser depaneling services for Flexible Printed Circuits (FPCs) with an accuracy of ±0.002 mm, ensuring no damage to the circuitry.
For shielding covers, we utilize tin-plated copper materials ranging from 0.01 to 0.03 mm in thickness; through laser micro-perforation, we can achieve hole diameters ranging from φ0.005 to 0.3 mm with a hole-to-hole spacing tolerance of ±0.01 mm. For automotive applications, cover panels, deep-drawing dies, and trimming templates are shaped using laser cutting—a process that offers high cutting speeds and minimal thermal deformation when applied to high-strength steel and galvanized sheets, thereby allowing it to replace traditional stamping in certain production stages. Furthermore, laser welding is employed for airbag components to guarantee both weld seam strength and airtightness.
In the fields of precision machinery and medical devices, we utilize laser cutting to process thin-sheet components such as gear blanks and spring shims, achieving a tooth profile accuracy of ±0.005 mm. Our laser-cut stainless steel shims (ranging from 0.005 to 0.1 mm in thickness) feature precise contours and are completely burr-free. For nickel-titanium alloy cardiac stents, we employ laser cutting to form intricate mesh structures, producing a kerf width of just 0.01 mm and a smooth surface finish.
Additionally, our laser-formed stainless steel surgical blades feature razor-sharp cutting edges; specifically, our ophthalmic surgical blades boast micro-structural dimensions as small as 0.007 mm with a dimensional accuracy of ±0.001 mm. Sanluo Precision provides customized laser beam machining services to leading enterprises such as Huawei, Qingyan Medical, and Foxconn. Processing hundreds of thousands of laser-cut parts annually, we are renowned for our consistent precision, rapid delivery, and comprehensive customer support, establishing ourselves as a trusted manufacturer and supplier of micro machining solutions in China.
