Medical Parts Machining

Sanluo Precision is a professional medical parts machining supplier and manufacturer in China. The company mainly engages in medical parts machining services. It can provide full-process services including material selection, process design, manufacturing, assembly and testing for the production of individual parts or complex components. The factory has a well-established quality management system and complete measuring tools, offering professional customized medical parts machining services to global high-end medical customers, and supporting the customization of complex and difficult parts.

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Product Description

Systematic Coordination Design

Sanluo Precision's Medical Parts Machining can conduct inspections on the motion relationships, clearance fits, and sealing properties of various components by using three-dimensional assembly simulation based on the simulation system engineering method. While considering the manufacturing of the parts, the cooperation accuracy between each component and the realization of the system functions should also be taken into account. According to the principle of uniformity of the reference, all mating surfaces are processed with the same reference to ensure the assembly accuracy. The cooperation accuracy of the surgical robot joints and endoscopes in the factory is H7/g6, with the clearance ranging from 0.002mm to 0.020mm, allowing for smooth movement. The company uses assembly techniques such as selection method, adjustment method, and repair method to ensure the consistency of batch Medical Parts Machining products.

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	0.002
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

Multi-material integrated processing

Sanluo Precision, as a professional Medical Parts Machining factory, has the processing capabilities for materials such as stainless steel, titanium alloy, PEEK, PPSU, zirconia, and alumina. The factory masters the interference fit connection technology for titanium alloy and PEEK, as well as the bonding technology for stainless steel and ceramics, and the connection technology for heterogeneous materials such as metal and silicone rubber through molding. During low-speed cutting of titanium alloy, the VC is set at 30 to 60 m/min to prevent work hardening. During high-speed cutting of PEEK, the VC is set at 200 to 400 m/min to reduce thermal deformation and adjust the processing parameters.

Functional Surface Treatment and Verification

As a professional Medical Parts Machining factory, we use grinding and polishing methods (Ra 0.2 - 0.4 μm) to ensure assembly accuracy and sealing performance. The moving surfaces undergo surface strengthening treatment, using nitriding and carburizing to enhance wear resistance, with high surface hardness. The appearance surfaces are treated by methods such as sandblasting, anodizing, and laser etching. The electrolytic polishing of the biological contact surfaces has a Ra value less than 0.2 μm. Sanluo Precision Company has provided professional customized medical parts machining services for surgical instrument components, medical catheter components, ophthalmic surgeries, ventricular assist pumps, etc.

Technical Parameter Table

Parameter Categories	Parameter Details
Equipment Model	PUMA ST series
Core Positioning	Batch processing of small and complex parts
Number of Axes	4-axis
Processing Capacity	Processing diameter Ø10-38 mm; part length 120-300 mm
Main Axis System	Spindle speed 8,000 / 10,000 / 12,000 rpm
Tool System	Standard 4 horizontal rotary tool holders in compact space, up to 5 horizontal tools can be used
Core Function	Standard chip crushing solution (CBS), supporting internal and external diameter turning, R processing, slotting, drilling, etc.
Motion Performance	X/Z axis rapid movement speed 32 m/min
Typical Applications	Watch parts, medical parts machining, etc. of small and complex parts

Parameter Categories	Parameter Details
Equipment Model	TORNOS Swiss GT26 Automatic Lathe
Core Positioning	High-efficiency mass production of small shaft parts such as medical screws
Maximum Machining Diameter	25.4 mm (pre-cut bar stock)
Maximum Spindle Speed	/ (It can provide high torque under high rotational speed)
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, medical parts machining, electronic and micro-mechanical parts