INDUSTRY COMPONENT

Syringe Barrel

A cylindrical component in syringe assemblies that contains and dispenses fluids with precision.

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Component Specifications

Definition
The syringe barrel is the primary cylindrical body of a syringe assembly, designed to hold and accurately dispense liquids or gases. It features a precisely engineered inner diameter for smooth plunger movement, calibrated volume markings for measurement accuracy, and a luer lock or slip tip connection for secure attachment of needles or tubing. This component ensures controlled fluid transfer in medical, pharmaceutical, laboratory, and industrial applications.
Working Principle
The syringe barrel operates on the principle of positive displacement. When the plunger is depressed, it creates pressure that forces the fluid through the barrel's outlet. The smooth inner surface minimizes friction, while the calibrated markings allow precise volume measurement. The barrel maintains structural integrity under pressure to prevent leakage or deformation during operation.
Materials
Medical-grade polypropylene (PP), polycarbonate (PC), cyclic olefin copolymer (COC), or glass (borosilicate). Materials must meet USP Class VI, ISO 10993, or FDA 21 CFR Part 177 standards for biocompatibility and chemical resistance.
Technical Parameters
  • Length 70mm to 150mm
  • Surface Finish Ra ≤ 0.4μm
  • Pressure Rating Up to 100 psi
  • Volume Capacity 1mL to 60mL
  • Graduation Accuracy ±2% of nominal volume
  • Inner Diameter Tolerance ±0.05mm
Standards
ISO 7886-1, ISO 11040-4, DIN 13080, ASTM D4169

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Syringe Barrel.

syringe barrel medical syringe component fluid dispensing luer lock polypropylene syringe ISO 7886 precision medical device Syringe Barrel in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Syringe Assembly

A precision medical device component that holds and dispenses contrast media during medical imaging procedures.

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Engineering Analysis

Risks & Mitigation
  • Material degradation from chemical exposure
  • Cracking under pressure
  • Inaccurate volume dispensing
  • Leakage at connection points
  • Biocompatibility failure
FMEA Triads
Trigger: Material impurities or improper molding
Failure: Cracks or fractures during use
Mitigation: Implement material certification and statistical process control during manufacturing
Trigger: Inconsistent inner diameter
Failure: Inaccurate fluid dispensing
Mitigation: Regular calibration of molding equipment and 100% dimensional inspection
Trigger: Poor surface finish
Failure: Increased plunger friction and inconsistent dosing
Mitigation: Maintain mold polishing schedules and implement surface roughness monitoring

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Inner diameter: ±0.05mm, Volume graduation: ±2%, Overall length: ±0.5mm
Test Method
Dimensional verification with coordinate measuring machines, pressure testing per ISO 7886-1, leakage testing with dyed solution, chemical resistance testing per USP <661>

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are commonly used for syringe barrels?

Medical-grade polypropylene is most common for disposable syringes due to its chemical resistance and cost-effectiveness. Glass barrels are used for high-precision applications, while COC offers superior clarity and chemical resistance for pharmaceutical use.

How are syringe barrels tested for quality?

Quality testing includes dimensional verification, pressure testing, leakage testing, chemical compatibility assessment, and biocompatibility testing according to ISO 7886 and ISO 11040 standards.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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