Insertion and withdrawal

Insertion and withdrawal testing involves applying and measuring the compressive force to an object to push it into a recepticle, then measuring the tension force to pull it out. This may be done for a single cycle or over multiple cycles. If performed over multiple cycles it is common to compare the compressive and tensile forces for the initial cycle and then at specific intervals.

Electrical couplings, snap-fit connectors and locking spade terminals are all tested for insertion forces (assembly) and for withdrawal (extraction or disassembly).

Consistent insertion force is vital for security of electrical connection and rapid assembly line throughput. Extraction resistance must balance the ease of intended disconnection with connector integrity under its intended conditions of use. Other applications include industrial fixings and fasteners, stoppers, lids and push-fit closures.

Correct alignment of the mating parts is essential for accurate and repeatable testing, which should be conducted at a constant test speed of push-pull by using a motorised test system.

Standards

Featured or equivalent test standards for Mecmesin solutions in this section

BS EN 5057

Specification for flat, quick-connect terminations

Term Video

Mecmesin has customer service which provide unwavering support for our questions and ALWAYS come through with the results and answers we have needed. This solution continues to open doors for us and grow with our needs. It was everything we didn’t know we needed and everything we could ask for. It is simple to use and can be mastered using very user-friendly software and conversions into the programs we use every day. I look forward to taking our next steps with Mecmesin!

Terri Lebow, Quality Manager
Vintech Industries Inc.

Case study

Weather seal deflection test jig schematic drawing

Electrical connector insertion and withdrawal forces

Custom-fit

Insertion withdrawal test fixture for flat quick-connect terminations IEC60670

The Mecmesin 2.5-i has been of great use to IFPL in the testing of socket-type components and materials

Ben Salmon, Test Technician
IFPL

Case study

MultiTest performs cyclic insertion and withdrawal of the connector until a drop in force is automatically detected.

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Insertion and withdrawal

Standards

BS EN 5057

Term Video

Extruded Seal Deflection, Insertion and Extraction Forces

Electrical connector insertion and withdrawal forces