Standard design features and benefits
ProTest take the guessing out of tray-sealing and peeling;
The ProTest is an automated lid-peeling device, designed to measure and report the resistance offered by the film as it separates from the tray during the moment of lid peeling.
Easy to set-up, the user can specify the strength of peel
required for the specific product, process, material or environment of their production facility.
Having a ProTest on site gives up-to-date, line by line seal- integrity analysis, cutting out the need to send samples off site for costly, third-party testing.
The ProTest is capable of retaining, displaying and outputting test data, allowing the user to export the information. Once exported it’s possible to compare up to 5 test results against one another at a time, in a variety of formats.
Reports are initially generated for review on the machines built-in 12-inch high-definition touchscreen or, alternatively, this data can be quickly exported via Ethernet or USB device.
This provides the user with traceability records and assurance of peel strengths maintained throughout production. The understanding of peel strength both before and during the production process can be a priceless tool in solving any seal issues.
ProTest is designed with a user-friendly interface for simple operation. The unit is robust, self-contained and very simple to operate. Requiring only 1200mm x 400mm of bench space and a 3 pin 230v power supply.
ProTest is designed to be flexible to suit the vast majority of trays used in the market place.
The maximum diagonal pull the machine is capable is a diagonal tray diameter of 380mm. There is no limit to the shape of the tray or how small it can be.
Lid Peeling Defined
By employing a ProTest unit at their facility the user is able to establish their own peel metrics for the specific; tray size, tray material, film and process.
The easy set-up of the machine means, as a user you simply;
- switch on the unit
- choose which tray from your production you wish to test
- secure it, using the specially designed film clamp and tray support
- fill in some details to identify the materials and parameters before testing
- press go.
To be able to fully understand the results produced by ‘ProTest’ Proseal have established some ‘Proseal Peelability Metrics’ this way we have been able to break a single peel down into four stages for assessment, these four stages are as follows;
1. PI- PEEL INITIATION
To obtain the initial separation an increased weight of draw is required at a 45 degree angle between the tray and film.
2. PC- PEEL CONSTANT
A lower weight of draw is required as the film peels along the straight edges of the tray.
3. PCC- PEEL CORNER CONSTANT
The draw weight increases slightly as the film reaches the corners diagonally on the tray.
4. PE- PEEL END
This is the last draw of the film which increases as the last corner of bond is separated.