SSR-01 Syringe Sliding Resistance Tester

The Importance of Glide Force in Syringe Performance

In syringe manufacturing and quality control, glide force plays a pivotal role in determining how smoothly and consistently a syringe’s piston moves during drug administration. It directly impacts usability, patient comfort, and dosing accuracy. This article introduces the Syringe Piston Glide Force Tester, a specialized instrument designed to quantify this crucial parameter in accordance with ISO 7886-1 Annex E. We will delve into its testing method, technical capabilities, and how it supports compliance with ISO 7886 testing requirements—essential for syringe manufacturers and quality assurance professionals.

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Syringe Piston Glide Force Tester and ISO 7886 Testing Explained

The Syringe Piston Glide Force Tester—also referred to as the SSR-01 Syringe Sliding Resistance Tester—is designed to perform precision tests on hypodermic syringes. Its core function is to measure:

• The initiating force required to start piston movement

• The mean force during continuous movement

• The maximum force encountered throughout the test

These parameters are central to the glide force profile outlined in ISO 7886-1 Annex E, the international standard governing manual-use sterile hypodermic syringes. Annex E details the method for evaluating how much resistance a piston presents when fluid is expelled at a constant rate, using distilled water and a standardized setup.

By aligning with ISO 7886, manufacturers can ensure that their products meet global safety and performance expectations. This is critical for sterile medical devices intended for widespread use in hospitals, clinics, and home healthcare.

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How Glide Force is Measured: ISO 7886-1 Annex E Procedure

To determine the glide force accurately, the SSR-01 Syringe Piston Glide Force Tester uses the procedure prescribed in ISO 7886-1 Annex E. The core steps include:

• Filling the syringe with distilled water to beyond its nominal capacity.

• Mounting it to the test fixture while aligning the reservoir’s water level to the syringe barrel midpoint.

• Setting the test speed at 100 mm/min.

• Activating the mechanical drive to depress the piston while continuously recording force data.

The system captures:

• Initiating force (fs): the force needed to start plunger movement.

• Mean glide force (F): average force throughout plunger movement.

• Maximum force (Fmax): the peak force required during piston travel.

This standardized process ensures precise repeatability and data integrity for quality control reporting.

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Key Features of SSR-01 Syringe Sliding Resistance Tester

Cell Instruments’ SSR-01 model brings automation, reliability, and high-resolution data to syringe glide force testing. Some of its standout features include:

• High Accuracy: ±0.5% full-scale reading for force measurements

• User-Friendly Interface: 7-inch HMI touchscreen with intuitive controls

• Precision Drive System: Ball lead screw mechanism and variable test speed

• Data Rich Output: Simultaneous capture of initiating, mean, and maximum glide forces

• Customizable Fixtures: Adaptable to different syringe types and sizes

• Overload Protection: Enhances safety during testing

• Auto Return & Printing: Returns to start position and prints test results with a built-in microprinter

These capabilities not only simplify compliance with ISO 7886-1 but also optimize workflow efficiency and reduce manual errors.

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Applications Across Multiple Industries

Glide force testing is essential in multiple sectors where syringes are critical components:

• Medical device manufacturing: Ensures smooth performance and patient safety

• Pharmaceutical packaging: Verifies proper delivery mechanisms

• Regulatory testing laboratories: Confirms conformity with international standards

• Quality control units: Identifies defective syringes early in production

With applications spanning hospitals, laboratories, and industrial production lines, the SSR-01 proves its versatility and reliability.

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Why Choose Cell Instruments’ SSR-01 for Glide Force Testing?

Cell Instruments has extensive experience in material and packaging testing and offers full customization to meet specialized testing requirements. The SSR-01 represents our commitment to innovation, quality assurance, and regulatory compliance. By choosing our solution, syringe manufacturers gain a reliable partner to support ISO 7886-1 adherence and continuous product improvement.

Understanding and controlling glide force is not just about meeting standards—it’s about delivering quality and safety to end-users. With Cell Instruments’ Syringe Piston Glide Force Tester, compliance with ISO 7886-1 Annex E becomes both straightforward and reliable. Whether you’re in pharmaceutical production, medical device QA, or laboratory validation, the SSR-01 is your solution for precision, consistency, and trust.

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FAQs

1. What is glide force, and why is it important in syringe testing?
Glide force is the resistance encountered when moving the syringe piston. It’s critical for ensuring smooth medication delivery and preventing user discomfort.

2. What forces are measured using the SSR-01 tester?
The SSR-01 measures the initiating force, mean, and maximum glide force during the test.

3. Can the SSR-01 test syringes of different sizes?
Yes, the system includes multiple fixtures that accommodate various syringe sizes and volumes.

4. How does Cell Instruments support custom testing needs?
We provide custom fixture development, automation upgrades, and software integration to meet specific client requirements across diverse industries.