Medical Grade Silicone Tube
Medical grade silicone tubing is used to transfer liquids and gases in medical devices, fluid-handling equipment, and high-purity processing systems. Xiamen Jinshun Sealing Technology Co., Ltd. manufactures silicone tubes using platinum-cured silicone options, with custom inner diameter, outer diameter, wall thickness, hardness, and color available according to project requirements. For applications requiring repeated sterilization or biological contact, the tubing material, post-curing process, extractables profile, and applicable biocompatibility requirements must be verified for the intended use.
Medical Grade Silicone Tube Specifications
| Parameter | Specification |
|---|---|
| Product name | Medical Grade Silicone Tube |
| Material | Silicone rubber |
| Curing method | Platinum-cured option |
| Manufacturing process | Extrusion or other suitable process, depending on design |
| Tube dimensions | Custom inner diameter, outer diameter, and wall thickness |
| Hardness | Typically selectable by compound; confirm required Shore A value |
| Color | Translucent or custom color; identification stripe available on request |
| Temperature range | Certain grades may operate from approximately -60°C to +226°C; verify the selected compound and application |
| Sterilization options | Steam, ethylene oxide (EtO), or radiation, subject to grade and validation |
| Post-curing | Extended post-curing available for suitable grades |
| Certifications and compliance | RoHS, REACH, and LFGB options; medical-contact and biocompatibility requirements must be separately confirmed |
| Main applications | Medical devices, fluid handling, industrial equipment, and sealing |
| Customization | Dimensions, hardness, color, packaging, and selected performance requirements |
| Manufacturer | Xiamen Jinshun Sealing Technology Co., Ltd. |
| Established | 2002 |
What Is Medical Grade Silicone Tubing?
Medical grade silicone tubing is flexible silicone rubber tubing developed for applications where material purity, flexibility, temperature resistance, and compatibility with the conveyed medium are important.
Compared with general-purpose industrial tubing, medical silicone tubing may require tighter control of raw materials, curing conditions, post-curing, extractables, and biological safety documentation. These requirements depend on the device classification, the type and duration of patient contact, and the applicable regulatory framework.
Platinum-cured silicone is often selected for applications that require low residual processing by-products and controlled material properties. However, platinum curing alone does not establish biocompatibility or regulatory compliance. The finished tubing must be evaluated against the requirements of its intended use.
Key Performance Characteristics of Medical Silicone Tubes
1. Platinum Curing and Post-Curing
Platinum-cured silicone is widely used in high-purity tubing applications because the curing chemistry can support low levels of certain residual substances when the formulation and manufacturing process are properly controlled.
Post-curing can reduce residual volatile compounds and stabilize material properties. Jinshun can assess extended post-curing requirements for suitable tubing grades, particularly for peristaltic pump and pinch-valve applications where repeated deformation places additional demands on the material.
The required post-curing conditions should be validated rather than assumed. Buyers should request relevant material specifications and test results when extractables or residual volatiles are controlled purchasing criteria.
2. Temperature Resistance and Flexibility
Silicone rubber can retain flexibility over a broad temperature range. Certain grades may support operating temperatures from approximately -60°C to +226°C, but the actual limits depend on the compound, exposure duration, pressure, and mechanical loading.
| Operating condition | Engineering consideration |
|---|---|
| Low-temperature service | Confirm that the tube remains flexible and does not become too stiff for the assembly |
| Continuous high temperature | Verify the rated temperature for the selected compound and expected service life |
| Steam sterilization | Confirm the validated cycle, including temperature, exposure time, pressure, and number of cycles |
| Pressure or vacuum | Specify operating pressure, peak pressure, vacuum level, and wall thickness |
| Repeated bending or pumping | Evaluate fatigue, kinking, dimensional stability, and service life |
Do not use the maximum temperature rating as a substitute for a pressure or sterilization rating. A tube that tolerates a given temperature under unloaded conditions may behave differently when pressurized, bent, or repeatedly compressed.
3. Low Extractables and Fluid Compatibility
Medical and pharmaceutical fluid paths may require limits on extractables, leachables, particulates, or other substances that can migrate from the tubing into the process fluid.
These properties depend on the silicone formulation, curing and post-curing conditions, cleaning and handling practices, and the fluid itself. A generic statement such as "low extractables" should be supported by test data relevant to the intended process.
For procurement and quality teams, the specification should identify the fluid, contact temperature, exposure duration, cleaning procedure, and any required analytical limits. These details help determine whether additional testing is needed before production approval.
4. Translucency and Identification
Translucent silicone tubing allows operators to observe fluid movement and identify visible changes in the tube or conveyed medium. Custom color stripes can also help distinguish process lines, fluid routes, or tube specifications during assembly and maintenance.
Colorants and identification features must be suitable for the intended application. For high-purity or patient-contact use, buyers should confirm that any pigments, printing, or additional processing meet the applicable material and regulatory requirements.
Medical Silicone Tube Sizes and Customization
Medical tubing dimensions affect flow, pressure resistance, pump performance, connector fit, and the risk of kinking. Jinshun can review custom dimensions based on the application and approved drawing.
| Design parameter | Information required | Engineering purpose |
|---|---|---|
| Inner diameter (ID) | Nominal ID and tolerance | Determines flow area and connector fit |
| Outer diameter (OD) | Nominal OD and tolerance | Controls fit through clamps, guides, and housings |
| Wall thickness | Nominal thickness and tolerance | Influences pressure capability, flexibility, and pump compression |
| Hardness | Target Shore A value, where applicable | Affects flexibility, recovery, and resistance to deformation |
| Tube length | Cut length and tolerance | Supports assembly and packaging requirements |
| Color | Translucent, natural, or specified color | Supports visual inspection and process identification |
| Surface condition | Required smoothness and appearance | Helps define inspection and cleanliness requirements |
| Pressure and vacuum | Operating and peak values | Supports evaluation of wall thickness and tube stability |
| Sterilization | Method, cycle, and expected number of cycles | Helps assess dimensional and mechanical changes over time |
| Compliance documents | Required standards, reports, and declarations | Supports supplier qualification and product release |
For a new project, provide the target ID, OD, wall thickness, working pressure, temperature, fluid, sterilization method, and annual volume. If the design is not finalized, an existing sample or preliminary drawing can be used for an initial feasibility review.
Typical Applications of Medical Grade Silicone Tubing
Medical silicone tubing is used across several types of equipment. The correct grade depends on whether the tube contacts a patient, carries a process fluid, or serves a non-patient-contact function.
| Application | Typical tubing requirement | Key selection factors |
|---|---|---|
| Respiratory devices | Flexible tubing for gas delivery | Flow requirements, connector fit, cleanliness, and applicable biological safety |
| Peristaltic pumps | Tubing that repeatedly compresses and recovers | Fatigue resistance, dimensional consistency, flow accuracy, and service life |
| Pinch valves | Tubing designed for repeated closure and reopening | Compression recovery, tear resistance, and valve geometry |
| Fluid-handling devices | Tubing for controlled liquid transfer | Fluid compatibility, pressure, ID tolerance, and extractables |
| Bioprocess containers and single-use systems | Tubing for process-fluid transfer | Extractables and leachables, process compatibility, and required documentation |
| High-purity water systems | Tubing for water transfer | Purity requirements, cleaning procedures, and temperature conditions |
| Sterile filtration and filling | Tubing used in fluid paths around filtration or filling equipment | Sterilization compatibility, cleanliness, and validated process conditions |
| Cell culture and laboratory systems | Tubing for media, buffers, and reagent handling | Chemical compatibility, dimensional stability, and contamination control |
| Diagnostic equipment | Tubing for reagents or other fluids | Accuracy, fluid compatibility, and application-specific compliance |
The term "medical grade" should not be used as the only acceptance criterion. Device manufacturers should identify the applicable biological evaluation requirements, sterilization validation, and fluid-contact specifications for their finished product.
Sterilization Compatibility: What Buyers Need to Check
Medical silicone tubing may be compatible with steam, ethylene oxide (EtO), or radiation sterilization, depending on the material formulation and process conditions. Compatibility must be established for the exact tube and sterilization cycle.
| Sterilization method | Items to validate |
|---|---|
| Steam / autoclave | Temperature, pressure, exposure time, drying cycle, and repeated-cycle effects |
| Ethylene oxide (EtO) | Cycle conditions, residual limits, aeration, and packaging compatibility |
| Radiation | Radiation dose, changes in color or mechanical properties, and post-sterilization performance |
A stated temperature or pressure is not sufficient to prove sterilization compatibility. For example, a steam cycle should be assessed as a complete set of conditions, not only by its peak temperature. Buyers should confirm how many sterilization cycles the tube is expected to withstand and what changes in dimensions, hardness, tensile properties, or appearance are acceptable.
Quality Control and Regulatory Documentation
Medical tubing procurement requires a clear distinction between a material specification, a test report, and an approval or certification. Each document supports a different part of the supplier qualification process.
Xiamen Jinshun Sealing Technology Co., Ltd. was established in 2002 and maintains ISO 9001:2015 and ISO 14001:2015 management-system certifications. The company manufactures silicone tubes and other rubber sealing products for industrial, water-related, sanitary, and other applications.
For a medical tubing project, buyers should confirm the following before approving production:
- Material identification: Exact silicone compound and curing method.
- Dimensional inspection: ID, OD, wall thickness, cut length, and specified tolerances.
- Mechanical properties: Hardness, tensile properties, elongation, or other tests where required.
- Chemical and biological evaluation: Tests appropriate to the intended fluid contact and medical device.
- Sterilization validation: Evidence that the selected tubing performs as required after the specified sterilization cycle.
- Traceability: Batch identification and the documentation agreed for the order.
- Regulatory scope: Confirmation that declarations and test reports apply to the supplied grade and intended use.
RoHS, REACH, and LFGB relate to specific chemical or product-compliance requirements; they do not, by themselves, establish medical-device biocompatibility. Likewise, FDA-related material requirements should be specified accurately rather than described as a blanket FDA certification of the tube.
Why Work with Jinshun for Custom Medical Silicone Tubing?
Xiamen Jinshun Sealing Technology Co., Ltd. manufactures silicone tubes, silicone gaskets, rubber O-rings, Y-seals, RO membrane seals, and custom rubber components. For custom medical silicone tubing, project requirements can be reviewed around dimensions, material selection, hardness, color, processing, and required compliance documentation.
To help the engineering team assess a request, provide:
| Quotation requirement | Details to submit |
|---|---|
| Drawing or sample | 2D drawing, 3D model, or existing tube sample |
| Dimensions | ID, OD, wall thickness, length, and tolerances |
| Material requirements | Platinum-cured silicone or other specified material criteria |
| Working conditions | Fluid, temperature, pressure, vacuum, and expected service duration |
| Sterilization | Steam, EtO, radiation, or another defined method |
| Regulatory requirements | Applicable standards, biological evaluation needs, and required reports |
| Quantity | Sample quantity, initial order, and forecast annual volume |
| Packaging | Bulk, cut-length, clean packaging, or other specified requirements |
| Delivery destination | Country and intended market |
Frequently Asked Questions
1. What temperature range can medical grade silicone tubing withstand?
Certain silicone grades may operate from approximately -60°C to +226°C. The usable range depends on the compound, exposure duration, pressure, and mechanical loading. Confirm the selected grade's specification before use.
2. Can medical silicone tubing be sterilized by steam, EtO, or radiation?
Some grades support these methods, but compatibility depends on the formulation and validated cycle. Confirm temperature, exposure time, radiation dose where applicable, and expected repeat cycles before approving the tubing.
3. Can Jinshun manufacture medical silicone tubes to custom dimensions?
Yes. Custom ID, OD, wall thickness, length, hardness, and color can be reviewed against the project requirements. Submit a drawing or sample and the intended operating conditions to confirm feasibility and quotation details.
Medical grade silicone tube selection depends on more than flexibility or temperature resistance. The compound, curing and post-curing process, tube dimensions, fluid compatibility, sterilization cycle, extractables requirements, and biological evaluation must match the intended application. For repeatable procurement, define the critical dimensions and acceptance criteria, then verify the documentation for the exact grade supplied.
