Hypodermic needle pull-out test

Requirements

The customer, Oxford Instruments, wished to perform a destructive pull-out test to evaluate the maximum tension force to pull the 2 components apart. The system was designed to confirm the tensile integrity of the crimped ferrule on the end of a hypodermic needle.

Solution

The system was constructed using a Manual Test Stand and an Advanced Force Gauge with the needle held in a self-tightening Wedge Grip. The ferrule was supported in a Universal Support Fixture. The customer required a relatively low-cost solution which provided flexibility for various component variations and ensured the operator was protected during the course of the test from fracture and breakage of the sample. The combination of Small Wedge Grip and Universal Support Fixture enabled a wide range of component variations to be tested. A full surround guard was supplied with the system to ensure operator safety at all times.

System

  • MDD Test Stand
  • Advanced Force Gauge 100 N
  • Small Wedge Grip
  • Universal Support Fixture

Supplied to

Oxford Instruments, Bucks, UK

MDD Precision HandwheelManual Test Stand

Precision (Wheel)
MDD Precision Handwheel

The MDD is a precision, manually-operated test stand featuring a leadscrew and reinforced crosshead, whose movement is controlled by a handwheel.

Portable and can be bench-mounted for use in a vertical or horizontal position. Fit a digital height scale to measure crosshead movement.

Combine with any Mecmesin digital force gauge to measure tension and compression up to 1000 N.

Precision (Lever)
LCP/S Precision Lever

The LCP/S is a precision, manually-operated test stand featuring a rack-and-pinion with reinforced crosshead, whose movement is controlled by a lever.

Compact, portable and can be bench-mounted for use in a vertical position. Fit a digital height scale to measure crosshead movement.

Combine with any Mecmesin digital force gauge to measure tension and compression up to 500 N.

Basic (Wheel)
ValuTest-D Handwheel

The ValuTest-D is a simple, manually-operated test stand featuring a basic leadscrew and moving crosshead controlled by a handwheel.

Bench-mounted for use in a vertical position. Not recommended for applications requiring precise measurement of crosshead movement.

Combine with any Mecmesin digital force gauge to measure tension and compression up to 1000 N.

Basic (Lever)
ValueTest-L Lever

The ValuTest-L is a simple, manually-operated test stand featuring a basic rack-and-pinion with reinforced crosshead, whose movement is controlled by a lever.

Can be bench-mounted for use in a vertical position. Not recommended for applications requiring precise measurement of crosshead movement.

Combine with any Mecmesin digital force gauge to measure tension and compression up to 500 N.

Manually-operated test stands are compact, portable, and can be bench-mounted for ergonomic use.

Combine with any Mecmesin digital force gauge to measure tension and compression up to 1000 N.

Force gauge sold separately.

AFGDigital Force Gauge

Advanced
AFG

The Advanced Force Gauge (AFG) is the most versatile, fully-featured digital instrument from Mecmesin.

Accurate to an outstanding ±0.1% f.s. with models from 2.5 to 2500 N, it is ideal for mounting to a test stand or use as a hand-held device.

Full of useful features to help you solve almost any tension and compression measurement problem.

Product image of Advanced Force Gauge (AFG) handheld force measurement instrument by Mecmesin
Basic
BFG

The Basic Force Gauge (BFG) is the core digital instrument for tension and compression measurement from Mecmesin, covering load ranges from 10 to 2500 N.

A portable, affordable and easy-to-use force measurement solution with ‘live’ load display and ultimate peak hold capture.

Product image of Basic Force Gauge (BFG) handheld force measurement instrument by Mecmesin
Compact
CFG+

The Compact Force Gauge (CFG+) is the entry-level, low-cost digital force gauge from Mecmesin.

It is suitable for elementary tension and compression tests ranging from 50 to 500 N.

This lightweight, pocket-sized digital alternative to mechanical force gauges is ideal for non-critical applications that require peak measurements.

Product image of Compact Force Gauge (CFG+) handheld force measurement instrument by Mecmesin

The Advanced Force Gauge (AFG) is the most versatile, fully-featured digital instrument from Mecmesin.

Accurate to an outstanding ± 0.1% f.s. with models from 2.5 to 2500 N, it is ideal for mounting to a test stand or use as a hand-held device.

Full of useful features to help you solve almost any tension and compression measurement problem.

 

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