INDUSTRY COMPONENT

Syringe Barrel

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

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
ParameterTypical rangeNotes & selection driver
Length70mm to 150mm
Surface FinishRa ≤ 0.4μm
Pressure RatingUp to 100 psi
Volume Capacity1mL to 60mL
Graduation Accuracy±2% of nominal volume
Inner Diameter Tolerance±0.05mm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 7886-1, ISO 11040-4, DIN 13080, ASTM D4169

Parent Products

This component is used in the following industrial products

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

Typical Suppliers & Equivalents

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

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Syringe Barrel

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Contriu
Guangdong, CN
Also makes: Static Mixer
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “6/12 Ounce Syringe Barrel”
View source page ↗ contriu.com · checked 2026-08-26

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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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