We are a foremost manufacturer and supplier of Air Shaft, which is available in different form. An airshaft is a device used for handling and winding reels in the processing of web-fed material as continuous process of printing presses with material such as paper, card, and plastic film are wound.
The air shaft consist of three basic parts - a metal body cast in tough, durable, steel or aluminum alloy, uniquely elastomeric air expanding element and end journals treated with phosphorous salt film. 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, standardized components facilitate quick, cost-effective construction and replacement.
Air shaft bladder contains bladder multiple outside also called multi –tube shaft bladder for pneumatic shafts, are inflated to push out the clamping element, as long as the bladder is inflated. The shaft is in expanded state and will hold the core. There are various types of airshafts with hose system and system with several flat bladders known as multi bladder airshaft. The hose located in the shaft body is responsible for the expansion of clamping element. Usually, an axial or radial valve is mounted for the inflation and deflation of hose.
New design in air shaft bladder with special end caps and their body is made of stainless steel which makes them hard and powerful. It is used for sample ground water, pure water, chemicals samples etc.
Air expandable shaft is used for winding, and unwinding operation in various industries such as plastic, paper, packing, rolling mills, polyester, textile process, etc. Based on load, speed, and core material types of pipe material is decided. Air expandable shaft are suitable for both unwinding and winding stages, it is mainly consists of slotted pipe, to suite users machine, rubber bladder, lugs, non-return valve. The limitation is that it can take care of individual core speed variation as slippage is not achieved with core width is less than 150mm. Air expandable shaft is available economically, designed and simple to use, low maintenance, with quick changeover parts.
Pneumatic shaft is economic and flexible shaft which has clamping system that is readily accessible. It is manufactured in size of 3 inch/75 mm and 6 inch/150 mm.
Pneumatic shaft is of high strength aluminum from outer parts or of steel for carrying high load some other general parts are made of steel that is attached with screws which can be replaced easily when necessary. Pneumatic shaft is used to connect of shaft which having an angular misalignment, angular axial, parallel misalignment.
The weight of the shaft is light compare to the load carrying capability and with easily handling. The number and types of ledges is selected according to the application and customer requirement. This type of pneumatic shaft is very flexible and can also be adapted subsequently to change condition as new core tolerance, higher speed.
Ball Type Quick Lock shaft is manufactured under the guidance of our skilled professional using best quality raw-material, also it is tested on various quality measures by quality controller to provide defect free product. Clients can buy this lock at very reasonable price, light weight, rust resistance, with good finish.
Ball Type Quick lock shaft is a quick way to hold and release the core for slitter machine, individual quick locks are available having width of 50mm, 75mm, and 105mm with benefits as small core width, slippage, accommodating gauge variation.