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Stretch blowmolding machine manufacturer W. Amsler Equipment Inc. has extended its line of leak testers with its introduction of a flying head design that it says provides high output, flexibility, and tool-free changeovers. The new five-head linear unit, which can process up to 250 bottles/min, can be used for verifying the quality of plastic containers sized up to 2-L.

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Product Watch: W. Amsler offers new leak tester, CoreTech 's pull-on chuck automates loading of cores

Stretch blowmolding machine manufacturer W. Amsler Equipment Inc. has extended its line of leak testers with its introduction of a flying head design that it says provides high output, flexibility, and tool-free changeovers. The new five-head linear unit, which can process up to 250 bottles/min, can be used for verifying the quality of plastic containers sized up to 2-L.

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New products for plastics processors: Amsler's new leak tester (above) and CoreTech's CT-10 pull-on chuck.

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The five heads travel with the bottles along the conveyor in an enclosed system. Servomotors are used instead of an indexing conveyor or stationary heads to control the traveling heads. The servomotors move the heads more quickly, speeding up overall operation.

According to Amsler (Richmond, ON, Canada), the new system is smaller and more flexible than competitive linear and rotary machines. The leak tester uses low-pressure air to detect holes as small as 0.006-in diameter. It also detects fallen bottles, choked necks, and blocked necks. Extra heads can be added to the unit to increase speed and productivity.

This new leak tester is fully tested and commercially available. A custom blow molder in the U.S. has purchased two units for testing various plastic food containers.

Also new, but for processors of plastic sheet and film, is a pull-on chuck that automatically recognizes a core, latches onto it and pulls it down the mandrel with no need for operator intervention. The manufacturer is CoreTech Intl. (Alpha, NJ).

In tandem with a V-lifter to raise the core, the CoreTech pull-on chuck enables a single operator to safely raise, mount and load the parent core for cutting with virtually no human contact with the core.

The CoreTech pull-on chuck is available on the company's CT-10 Automatic core cutter and on the CT-10 Servo core cutter as an option, as well as on its factory remanufactured core cutting machines. It works for loading paper, fiber, plastic and other converting cores up to 120 inches in length. The company has uploaded a 3:42-long video of the CT-10 in operation; view that video here.

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