Mecmesin provides rotating vacuum peel system for McVities, UK

10 Oct 2016
Mecmesin

Case study

Rotating Vacuum Peel System

Specification

Testing was required for a range of flexible plastic trays of the same dimension but with differing forms, containing biscuits and confectionary. The adhesive bond on the clear foil sealing the trays needed to be tested for peeling strength.

The system needed a constant peel speed at a constant angle of 90 degrees. A reading of the peak force to break the adhesive bond, together with the average force to maintain the peel was required. With a number of plastic trays to be tested, the test speed needed to be as high as possible (500 mm/min).

Solution

The plastic trays were too flexible to be held by a mechanical grip, so a 'rotating vacuum fixture' was developed. This held the tray firmly in place during the test. A compressor providing 6 bar pressure was required with the vacuum being controlled by a lever-valve. To accept the different forms of plastic trays, a range of dedicated inserts were supplied with the vacuum fixture.

Both the vacuum and force gauge were mounted at 45 degrees to provide the constant angle of 90 degrees. In order to maintain the constant peel speed. The vacuum fixture was able to freely rotate on a bearing allowing the rectangular shaped plastic tray to self-centre during the test. DataPlot software enabled the customer to analyse peak and and average forces in a graphical format.

System

Motorised Test Stand
Advanced Force Gauge (AFG) 250N
'Rotating Vacuum Fixture' & Dedicated Inserts
DataPlot Software

Supplied to

McVities, UK

Files

Download file
CS117 Rotating Vacuum Peel System

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Jo Webb
Product Info
English
Created 10 Oct 2016
Modified 18 Apr 2017
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Mecmesin provides rotating vacuum peel system for McVities, UK

Case study

Specification

Solution

System

Supplied to

Files

Download file

See also

Fast food tray crush testing

Top-load testing of plant-based PLA material bottles

Tensile testing wire joining systems

Extreme sports waterproof bio-textile mechanical properties

Automated syringe break-loose and glide force system

Edge Crush Test (ECT) of corrugated cardboard

Wine can pop-and-tear opening force

Release torque testing of Champagne and sparkling wine corks

Adhesive test on capsulated cork stoppers

Vial stopper needle penetrability residual seal force and torque testing

Torque testing CRC closures with a pneumatically-controlled downward force

PET Screen Protector Release Liner Peel Testing

Lipstick shear force resistance

Hand sanitiser dispenser pump testing

Adhesion peel strength of COVID-19 tapes and stickers

Peel strength of foam band on PPE face visors

Edge Crush Test (ECT) of corrugated cardboard

Break-loose and sustaining force tests of pre-filled drug cartridges to ISO 11608-3

Vaccine delivery device and packaging testing

PET preforms - repurposing production for COVID-19 test kits

Probiotic drink packaging testing

Testing Ventilator and Breathing Assistance Apparatus Components

Face mask strength testing

Pharmaceutical tablet crush and break strength

Surgical rubber glove tensile strength testing

Lipstick tube force and torque testing

Mecmesin's materials testers

Top-load crush of plastic bottle with semi-automated test process

Dispensing pump assembly testing

Cosmetics brush pull-out testing

Powdered drink container - Mecmesin's compressive strength & lid peel tests

Retort packaging 90 degree peel and lid strength testing

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