Rubber Sleeve Rebound Tester

The Rubber Sleeve Rebound Tester is designed to evaluate the resilience and compression performance of collection needle rubber sleeves. It measures the force exerted when the needle tube passes vertically through a die hole, providing quantitative data to ensure product consistency and compliance with medical device standards.

Application

The tester is applicable to a variety of medical and laboratory products, including:

(1) Collection tubes and blood sampling needles – assessing rubber sleeve rebound force to ensure secure sealing and consistent operation.

(2) Pre-filled syringes – verifying the compression and resilience of protective rubber stoppers.

(3) Catheter and infusion system components – evaluating the elasticity and durability of rubber components.

(4) Quality control in production – ensuring each batch meets predefined resilience specifications.

(5) Research and development – optimizing rubber formulations for medical applications.

Standards

The Rubber Sleeve Rebound Tester is designed to comply with the following standards:

(1) YY/T 1618-2018: Collection Needle Rubber Sleeve Resilience Test (China)

(2) DIN 53 512: Testing of Rubber – Rebound Resilience (Germany)

(3) ISO 4662: Rubber, Vulcanized or Thermoplastic – Determination of Rebound Resilience

(4) ASTM D7121: Standard Test Method for Rubber Compression Set

Features

(1) Accurate measurement of rubber sleeve resilience at multiple distances.

(2) Adjustable test speed and pressure for various sample requirements.

(3) Real-time display of test force and calculated results.

(4) Onboard printing for test reports, including average values and deviation.

(5) Supports testing of needles and collection tubes with minimal setup.

(6) Compact design suitable for laboratory and production environments.

Parameters

Parameter	Specification
Pressure test range	0 – 50 N, error ≤ ±1%, resolution 0.01 N
Test time	1 – 999 s, error ≤ ±0.5 s
Test speed	50 mm/min, 80 mm/min, 100 mm/min, error ≤ ±2%
Measuring distance	0 – 50 mm, error ≤ ±0.1 mm
Rebound force range	0.5 – 1.5 N
Printing capability	8, 10, or 13 test data points, including average and deviation
Machine dimensions	Customizable depending on model and fixture
Power supply	AC220 V, 50 Hz (standard)

Accessories

(1) Main test unit – 1 set

(2) Needle clamping fixtures – 1 set

(3) Printer paper roll – 1 piece

(4) Operation manual – 1 set

(5) USB storage (optional)

Test Procedures

(1) Insert the needle at the butt end into the die hole of the clamping fixture, 2 mm above the surface.

(2) Start the test device to compress the rubber sleeve.

(3) Measure the rubber sleeve resilience at distances of 5 mm and 15 mm between the needle tube and the needle base.

(4) The instrument displays and records the rebound force. Each test can print 8, 10, or 13 data points, including average and deviation.

(5) Confirm that the measured resilience falls within the standard range of 0.5 N ≤ resilience ≤ 1.5 N.

Maintenance Information

(1) Regularly clean the clamping fixtures and die holes to prevent debris buildup.

(2) Calibrate the force sensor periodically to maintain accuracy.

(3) Avoid prolonged exposure to high humidity or corrosive environments.

(4) Inspect electrical connections and printer components for wear or damage.

(5) Follow standard laboratory safety procedures when operating the device.

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