Precision CNC Medical Machining

Sanluo Precision is a professional manufacturer and supplier of precision CNC medical machining in China. It focuses on the innovation of precision CNC medical machining technology, integrating advanced numerical control technology with strict standards of the medical industry to provide professional customization services for customers, and supporting the customization of complex and difficult parts. The company is not only a processing manufacturer but also a technical partner of medical device enterprises, providing full-process services from product development to mass production.

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Product Description

Digital manufacturing system

The Sanluo Precision factory has fully implemented digitalization in its precision CNC medical machining workshop. It adopts integrated CAD/CAM/CAE design and manufacturing, uses CATIA for 3D modeling, Mastercam to generate processing programs, and ANSYS for finite element analysis. The MES (Manufacturing Execution System) enables control of the entire production process, including from order placement, process scheduling, material distribution, quality inspection, to finished product storage and other aspects. The equipment networking rate is 100%, with real-time collection of processing parameters, tool status, and equipment operation conditions. A digital twin model is established, and virtual verification is conducted before actual processing. The trial-and-error cost is reduced by 50%.

Multi-axis machining

As an advanced precision CNC medical machining manufacturer, Sanluo Precision is equipped with DMG five-axis machining center and Makino turning and milling combined center. The five-axis machining can complete the processing of complex curved surfaces with one setup. Artificial joint ball heads (radius R15-25mm, ballity ≤ 0.01mm) and spinal intervertebral fusion devices (multi-surface cooperation, cooperation accuracy ± 0.02mm). The turning and milling combined processing has completed the processes of outer circle, end face, drilling, slotting, and tapping, increasing the processing efficiency by 60% and ensuring the positional accuracy of each surface. The centering lathe processes slender shaft instruments (L/D ≥ 20), with straightness ≤ 0.02mm/100mm.

Continuous process improvement

Sanluo Precision Company has a continuous improvement mechanism for precision CNC medical machining. Using the Six Sigma (6σ) management method, the defect rate is ≤ 3.4 ppm. Using experimental design (DOE) to optimize cutting parameters to improve processing efficiency and processing quality stability. Regularly conduct tool life tests, cutting force tests, and surface integrity analysis, and create a process database. The engineering team participates in the development of new products for customers, provides DFM suggestions, and improves the manufacturability of the products. It has directly or indirectly provided customized precision CNC medical machining services for high-end medical equipment such as Da Vinci surgical robots, GE medical CT, and Philips ultrasound probes.

Workstation Accuracy

dimensional accuracy	OD	ID	T（C）	DP	DA
unit:±/mm	0.002	0.003	0.005	0.005	0.0001
Geometric accuracy	roundness	coaxiality	straightness	cylindricity	circular runout
unit:±/mm	0.001	0.004	0.002	0.003	0.005
production capacity	1~999999 pcs	1~999999 pcs	1~999999 pcs	1~999999 pcs	1~999999 pcs
production cycle	3-20 days	3-20 days	3-20 days	3-20 days	3-20 days

Equipment Technical Parameters

Parameter Categories	Parameter Details
Equipment Model	NTX 500 Turning and Milling Combined Machining Center
Core Positioning	Horizontal/Vertical 3-axis multi-functional machining center, compact structure, suitable for medical and other industries
Travel (X/Y/Z)	X-axis: 375 mm, Y-axis: 150 mm, Z-axis: 610 mm
Spindle Speed	Optional speeds: 8,000 / 12,000 / 30,000 / 42,000 rpm
Processing Capacity	Maximum workpiece diameter: ø350 mm, Maximum bar diameter: ø65 mm
Tool Magazine Capacity	Standard 38-bit, optional 76-bit or 114-bit
Core Advantages	Can complete 6 surfaces of processing in one setup, the Y-axis stroke of the cutting tower reaches 60 mm
Typical Applications	Suitable for efficient processing of complex parts in precision CNC medical machining, semiconductor, mold and other industries

Parameter Categories	Parameter Details
Equipment Model	TORNOS Swiss GT26 Automatic Lathe
Core Positioning	Large-scale and efficient production of small shaft parts such as medical screws
Maximum Machining Diameter	25.4 mm (pre-cut bar stock)
Maximum Spindle Speed	Information missing (mentioning that high rotational speed can provide high torque)
Tool Capacity	Up to 40 tools can be installed (including 16 power tools)
Number of Axes Configuration	There are two models available: 5-axis and 6-axis
Drive Mode	Supports sleeve mode (for processing long bar stock) and no-sleeve mode (for processing short workpieces, which can save materials)
Core Advantages	The Y-axis enhances the back-axis processing capability, enabling one-time clamping for compound processing such as turning, milling, and drilling, reducing the need for secondary clamping
Typical Applications	Medical screws, dental screws, electronic and micro-mechanical parts