Co. offers a wide range of chucks that can accommodate core IDs from 1 to 16 in. The teeth automatically engage to the core by the relative motion of the roll to the shaft or the shaft to the roll. Tooth lock-up is instant, and no tools are needed.

TILT LOCK, 800/999-8458, fax: 763/497-7046, www.tiltlock.com

Co.'s stainless-steel air chuck can be washed down with no possibility of oxidation. It features an easy-change bladder system, split clamp securing for shaft mounting, O-rings in bore for air connection and a fixed core stop. An adjustable core stop is available as an option. Many sizes and configurations are available.

JRC WEB ACCESSORIES, 973/625-3888, fax: 973/226-4249, www.jrcweb.com

Recent advances to its air-roll-lock differential shaft simplify the converting process, co. says. Using an internal clutching mechanism to control tension eliminates operator error and can improve roll quality. Co. also adds its Glidelock rollers to its shafts to ease unloading processes. The Glidelock auto-locks to equalize tension on multiple-width cores.

CONVERTECH, INC., 973/328-1850, fax: 973/328-7256, www.convertech.com

Co.'s safety chucks have a replaceable journal seat/wheel assembly to support a variety of shaft journal configurations without modification. Tightly held journal seat-insert tolerances provide superior roll winding/unwinding concentricity, co. says. These chucks are available individually or as part of a complete web-control system.

THE MONTALVO CORP., 800/226-8710, fax: 800/644-5097, www.montalvo.com

The XP Great Expansion shaft allows operators to adjust its core diameter while it remains on the machine, eliminating the need to stock multiple shafts and drastically reducing setup time. The Series 750 XP design provides a 1-in. expansion range which aids in loading out-of-round cores on unwind rolls and accommodates 6-, 8-, 10- and 12-in. cores. The XP CP design accommodates 6.0-, 6.25-, 6.50- and 6.75-in. cores all with one shaft.

TIDLAND CORP., 800/426-1000, fax: 360/834-5865, www.tidland.com

The modular SDE core chuck system has six standard chuck sizes. The base chuck can be dedicated to one core size, or it can accept quick-change adapter collars for one core size larger than the base chuck. The collars slide over the nose of the base chuck and are held in place with a small retaining screw; therefore, core sizes can be changed in seconds. The adapter is expanded when the base chuck expands.

SCHLUMPF, INC., 207/893-1903, fax: 207/893-1905, www.schlumpf-inc.com

Co. has expanded its “SR” series of products to include the SRS-2000 self-centering strip shaft. It features a unique combination of wear-resistant gripping elements and polyethylene centering strips. The centering strips help to support the roll as the bladders compress naturally during rotation, minimizing roll bounce.

DOUBLE E CO., 508/588-8099, fax: 580-2915, www.doubleeint.com

Co.'s roll-lock style differential air shafts provide extremely sensitive tension control for light gauge and extensible films. The spacer-less setup reduces the requirement to handle tooling or position core stops. Cores can be slid across the shaft. They have interchangeable tooling for 3- and 6-in. cores, and their frictionless design provides dust-free operation.

DEACRO INDUSTRIES LTD., 905/564-6566, fax: 905/564-6533, www.deacro.com

The upgraded, heavier-duty ShaftLock™ safety chuck has no pinch points and opens only in the up position for safe unloading. It can handle roll weights up to 5,000 lbs at low or high speeds. All models automatically lock to hold rotating shafts and feature all-steel construction, including heavy-duty ball bearings. It features replaceable cradles and inserts, which are available for square, diamond and triangle shaft ends, among others.

CONVERTER ACCESSORY CORP., 800/433-2413, fax: 610/863-7818, www.handleyourweb.com