Medical Device Ultra Machining

Sanluo Precision is a leading professional manufacturer and supplier of medical device ultra machining in China. It mainly engages in the production of medical components with nanometer-level precision and provides professional medical device ultra machining services to customers. It masters advanced technologies such as ultra-precision cutting, ultrasonic vibration processing, and magnetic flow polishing, and offers professional customized medical device ultra machining services for minimally invasive interventional and precise medical treatments, supporting the customization of complex and difficult parts.

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Product Description

Nanometer-level processing accuracy

Sanluo Precision has a machining precision of IT0-IT2 level in medical device ultra machining. The dimensional tolerance is ±0.0005mm (0.5μm), the form and position tolerance is ±0.001mm, the surface roughness is Ra0.01-0.05μm, achieving an optical-level surface. The positioning accuracy of the ultra-precision machining center can reach 0.1μm. The abrasive grit size of the nanometer-level grinding machine is W0.5, and the removal rate of the ion beam polishing machine can be adjusted. The processing environment is an isolation platform, which can isolate the influence of external vibrations. The temperature is controlled at 20±0.1℃, and the relative humidity is 40±2%RH.

dimensional accuracy	OD	ID	T（C）	DP	R
unit:±/mm	0.002	0.003	0.005	0.005	0.01
Geometric accuracy	roundness	coaxiality	straightness	cylindricity	profile tolerance
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

Special processing technology

As a professional manufacturer of medical device ultra machining, Sanluo Precision specializes in using the ELID (Online Electrolytic Shaping) grinding technology. The grinding wheel remains sharp at all times, enabling mirror-like grinding. Ultrasonic vibration-assisted cutting with an amplitude of 1-5 μm and a frequency of 20-40 kHz reduces cutting force by 60% and improves surface quality. Magnetic flow polishing (MRF) can perform nanoscale polishing on optical components and micro lenses, with a surface roughness of Ra0.003 μm. Using femtosecond laser microprocessing, micro-metric apertures (φ10 μm - 50 μm) and micro-slots (width 20 μm) are fabricated.

Online Nanometer Measurement and Ultra-clean Environment

Sanluo Precision is equipped with detection equipment such as laser interferometers (with a resolution of 0.1nm), white light interferometers (with a vertical resolution of 0.01nm), and scanning electron microscopes (SEM). The online measurement system continuously monitors the processing dimensions and automatically compensates for tool wear and thermal drift. There is an ISO 100-level ultra-clean workshop with an air particle count of less than 3520 particles per cubic meter (≥0.5μm) and an air change rate of ≥400 times per hour. The company has provided customized medical device ultra machining services for ophthalmic surgical instruments, cardiovascular, and neurosurgical micro-instruments, etc.

Technical Specifications

Parameter Categories	Parameter Details
Device Model	250UPLmp
Core Positioning	Ultra-precision nanoscale processing system (single-point diamond turning, grinding, etc.)
Number of axes configuration	Can be configured as a two-, three- or four-axis machine tool
Bed and guide rails	Overall composite marble bed, fully constrained oil static pressure guide rails
Feedback system	Laser holographic linear optical encoder feedback resolution 8.4 picometers
Main spindle system	High rigidity porous graphite coated air spindle, rotational speed 50 - 5,000 rpm; spindle axial runout≤4 nm
Critical accuracy	Can achieve surface roughness Sa≤2.0 nm for profile processing
Control system	Embedded real-time Linux motion controller based on Delta Tau Power PMAC
Optional features	Can add B-axis, C-axis, fast tool servo (FTS), etc. to achieve free-form surface processing
Typical applications	medical device ultra machining components, etc.

Parameter Categories	Parameter Details
Equipment Model	JDGR300T Four-axis High-speed Machining Center
Core Positioning	Designed for ultra-precision processing at the micrometer level, suitable for precision medical components
Numerical Control System	The JD50 numerical control system independently developed by Jingzhu, with a motion control resolution of 10nm
Critical Accuracy	Stably achieving 0.1μm feed, 1μm cutting, and surface roughness reaching nanometer level
Spindle System	Standard equipped with a Jingzhu high-speed precision motorized spindle with a torque of 21.5Nm
Tool Magazine System	Chain tool magazine
Core Advantages	With in-machine measurement technology, it can automatically detect and compensate for errors, ensuring the yield of batch processing
Typical Applications	medical device ultra machining components with strict requirements for size and surface quality, such as surgical instrument parts and orthopedic implants