Air Shaft

Polytech’s Air Shafts (Expanding) are expanded immediately under air pressure for instant roll mounting and gripping securely and fast without damage to the core or roll. Moreover, at the touch of the fingers (keys, lugs etc.) between shaft and core, they collapse positively for quick roll removal. The shafts consist of three basic parts - a metal body cast in tough, durable, steel or aluminum alloy, an uniquely elastomeric air expanding element & Dimensional tolerance of journal is very tight for better fitting & rigidity during operation. Simplicity and high reliability of shaft design, and high tension strength-to- weight ratio assure rugged, reliable performance with minimum maintenance in excellent economy and ease of operation.

All Polytech's air (expanding) customized (OEM and ODM) shafts (Button, Key, Lug, Leaf types) are our custom manufactured to your specifications. And standardized components facilitate quick, cost-effective construction and replacement .

Shafts are engineered to meet the demands of virtually every rewinding and unwinding application. Especially, OEM and ODM shaft products from customers are acquired for various processes in a wide variety of converting and printing systems. Each type widely offers various special options such as aluminum construction, cantilevered support and more.

1. Low Price and Patented Products
2. Greatest Gripping Force
3. Quick Actuation and Easy Replacement
4. Easy Maintenance and Utmost Durability
5. No Core Slip and No Damage to The Core

Pipe : Steel / Aluminum / M.S. with Hard chrome Plating

Lug : Aluminum / Rubber / PU

Core ID from 3" to 12”

Length up to 6000 mm(240")

The Multi Bladder Shaft is made of Aluminum Extrusion with steel journals Tight -fitted for High Torque capability. It is assembled with a PU tube for longevity.
Multi bladder is very light and allows easy handling. Easy and quick in-house maintenance.

Core ID: 2” to 12”

up to 5,000 mm (196”)

Core ID : 2” to 6”

Lug type : Aluminum / Rubber / PU

Length : Up to 1000mm

Pipe : M.S. with Hard chrome / Aluminum / Steel

Cantilever Shafts are widely used for Pouching Machines, Doctoring Machines & Label Printing Machines.
Cantilever Shafts has a durable construction to hold the cores for the positive gripping.
Cantilever Shafts are in flange mounting styles and are used for light to medium duty works.