Precision Medical Fittings

Sanluo Precision is a professional manufacturer and supplier of precision medical fittings in China. It mainly engages in the processing and assembly of precision medical fittings. We are a leading manufacturer of medical pipe components in China and provides professional customized processing services for customers. The company mainly produces precision CNC medical processing products such as medical catheters, sleeves, syringes, and connection tubes. We offer high-quality customized processing services for fields like intravenous infusion and blood transfusion, interventional treatment, minimally invasive surgery, and extracorporeal circulation, and supports the customization of complex and difficult parts.

Send Inquiry

Product Description

Precision Processing Introduction and Parameters

Sanluo Precision Factory covers the processing of precision medical fittings, including thin-walled tubes (wall thickness ranging from 0.02mm to 1mm), capillary tubes (inner diameter ranging from 0.03mm to 2mm), and special-shaped tubes (elliptical, square, multi-chambered). The tubes are cut using precision tube cutting machines, with the cutting edge perpendicularity ≤ 0.05mm, no burrs, and no deformation. The tube ends are chamfered and deburred using specialized equipment, with the R-angle precision being ±0.02mm, and the surface roughness being Ra0.2μm. The bending process is carried out using a CNC bending machine, with a bending radius of R3-15mm and an angle precision of ±0.5°, and the ellipticity ≤ 5%. For multi-layer composite tubes (metal + plastic), they are produced by co-extrusion or coating molding, with an interlayer bonding strength of ≥ 10MPa and a peel strength of ≥ 3N/mm.

dimensional accuracy	OD	ID	T（C）	DP	GD
unit:±/mm	0.002	0.003	0.005	0.005	0.005
Geometric accuracy	roundness	coaxiality	straightness	cylindricity	Position tolerance
unit:±/mm	0.001	0.004	0.002	0.003	0.01
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

Pipe fitting connection technology

As a professional manufacturer of precision medical fittings, Sanluo Precision Factory masters various pipe fitting joining techniques. Laser welding is suitable for stainless steel and titanium alloy fittings, with weld width ranging from 0.02 to 0.5 mm, heat affected zone ≤ 1 mm, and welding strength ≥ 90% of the base material strength. Expansion and contraction connections form mechanical locking, with connection strength greater than 500 N and good sealing performance. Adhesive connections use medical-grade adhesives (LOCTITE, 3M), with shear strength ≥ 15 MPa, and after curing, it complies with ISO 10993 biocompatibility. The fit between the pipe fittings and the joint is interference fit (H7/p6), with fitting force ranging from 200 N to 500 N, and it will not come off after assembly.

Fluid performance testing

Flow test: Determine the flow characteristic curves under different pressures. Pressure drop test: Measure the pressure loss of the pipeline. Leakage test: Use an airtight testing machine to test at a pressure of 0.5 - 1 MPa, maintaining pressure for 60 seconds, with the leakage volume less than 1 ml/min. Fatigue test: Cyclically pressurize and depressurize 10,000 times, without any leakage or rupture.

Product Packaging

In terms of clean packaging, the inner cavity of the pipe fittings is purged with high-purity nitrogen gas, and both ends are sealed with medical stopper caps. EO sterilization and irradiation sterilization services are provided. Sanluo Precision Company has already provided professional customized precision medical fittings processing services for cardiovascular interventional catheters, etc., with an annual production capacity of up to 2 million pieces. Processing equipment technical parameters

Parameter Categories	Parameter Details
Equipment Model	LASERTEC 50 Shape Femto
Core Positioning	Hard and brittle material processing without thermal damage, aiming for ultimate surface quality
Number of Axes	Five-axis linkage (suitable for four-axis requirements)
Travel (X/Y/Z)	500 mm / 460 mm / 700 mm
Critical Accuracy	Positioning accuracy≤8 µm, surface roughness Ra < 0.1 µm
Motion Performance	Acceleration > 1 g
Laser Technology	Femtosecond laser, tunable laser source with variable pulse length and burst mode
Core Advantages	3D laser ablation technology, combined with CCD camera and 3D probe for rapid positioning, achieving non-contact and zero electrode loss processing
Typical Applications	Micro molds and precise engraving for materials such as hard alloys and ceramics, meeting requirements in aerospace and precision medical fittings fields

Parameter Categories	Parameter Details
Product Series	K3W Series
Core Positioning	Ultra-fine Tube Cutting
Processing Scope	Tube Diameter: 0.5mm to 12mm
Core Advantages	Breakthrough in the Precision of Ultra-fine Tube Cutting
Typical Applications	Ultra-fine Tube Components for industries such as precision medical fittings, precision instruments, and medical devices