Convertech expanding shaft and chuck adapters are available with mechanical or pneumatic expansion, set screw or clamp collar designs, and in practically any configuration up to a 16" diameter and 150" face length. Combine Convertech's torque activated mechanical or pneumatic mechanical chucks with our expanding adapters and you'll be able to use more core diameters, without having to purchase additional shafts and chucks.

Core Chuck applications:
A systems approach
Combine Convertech's torque activated mechanical or pneumatic mechanical chucks with our mechanical adapters and you can accommodate additional core diameters at a fraction of the cost. Easier change-over and less downtime mean greater productivity at a very low cost.

You can also combine adapters with Convertech pneumatic and mechanical chucks, which are designed for high speed printing, laminating, and sheeting applications on unwind flying or zero speed splicers (and other shaftless unwind and rewind applications.)

Advantages of adding a Convertech adapter to your air chuck:

Eliminates need for a separate chuck for each core size
Reduces roll-change time
Handles very high weight, web speeds and torque levels
Converters can dramatically improve splice reliability, increase operating speeds and save time and money with repeated use of cores without damage to core ends, which can lead to excessive dust. Wide-footprint lugs provide a consistent grip on the core, without damaging the inside. Ease of removal is maintained with pneumatic and mechanical retraction of lugs, ensuring that the lugs never stick in the core.

All Convertech mechanical and pneumatic adapters are easy to use and maintain.

Web Shaft applications:
Convertech shaft adapters come in a large variety of custom configurations for every application. High-quality materials and heavy-duty construction give Convertech's mechanical and pneumatic adapters superior performance in unwind and rewind operations.

Available with mechanical or pneumatic expansion in a variety of bore and core sizes. For use with any brand shaft, Convertech adapters are easy to install and last up to five times longer than the competition. Convertech adapters are lighter and lower in cost than comparable diameter shafts.

Mechanical Adapter: Precision-machined in alloy steel (or aluminum) makes these mechanical adapters virtually indestructible, providing the best torque capacity for light-duty unwinds or rewinds for the lowest cost. Convertech mechanical expanding adapters are well suited to a large variety of tension-sensitive applications. Convertech mechanical adapters are designed to provide the highest degree of control to ensure your critical applications are executed correctly and precisely for your customers.

Pneumatic Adapter: Pneumatic expanding adapters are recommended primarily for unwinding, where perfect centering is needed. They can also be used for winding and rewinding, and are superior for higher weight, speed, and torque requirements. Pneumatic adapters expand pneumatically to ensure a precise fit. Shafts expand immediately under air pressure for instant roll mounting. They grip securely and fast without damage to the core or roll. Ease of use and precision control ensure maximum concentricity of rolls.

Convertech shaft adapters incorporate advanced technological capabilities and as a result are lighter and less expensive. These adapters are very easy to install, and will offer you the ability to accomodate a much wider variety of core sizes at a fraction of the cost. What’s more, they will work with any brand of expanding shaft. Adapters are available as either mechanical or pneumatic, with set screw or clamp collar, and in practically any configuration. Shaft adapters can be custom manufactured and delivered in just a few weeks.

Speedy lead times of just a few weeks means you'll have your shaft adapter when you need it: FAST.