Custom Lug Type Pneumatic Air Shaft

Product Overview
AstraRoll’s Custom Lug Type Pneumatic Air Shaft is engineered for secure roll-core gripping in winding, unwinding, slitting, and rewinding equipment. When compressed air is introduced, the internal mechanism pushes the lugs outward to engage the inside of the core, creating a firm mechanical connection between the shaft and the roll. Releasing the air retracts the lugs, allowing the finished roll or empty core to be removed quickly.

Compared with a fixed mechanical shaft, the pneumatic lug structure makes roll loading and unloading more efficient while providing dependable torque transmission during continuous operation. The design is particularly suitable for applications where secure core holding and practical roll changeover are important.

Non-Standard Configuration for Different Machines
No two web handling machines have exactly the same shaft dimensions, core requirements, mounting arrangements, or operating loads. AstraRoll therefore manufactures Lug Type Pneumatic Air Shafts according to the actual application rather than limiting customers to a standard model.

Shaft diameter, overall length, core size, lug configuration, shaft ends, air inlet position, material, and mounting arrangement can all be adapted to suit the machine. Available constructions can include steel or aluminum, depending on the required strength, rotating weight, load, and operating conditions.

For replacement projects, machine upgrades, or new equipment development, the shaft can be produced around the existing mechanical interface to achieve a practical fit without unnecessary modification to the machine.

Secure Lug Gripping and Torque Transmission
The expanding lugs provide direct contact with the inner wall of the roll core, helping prevent slipping during winding and unwinding. This is particularly important when the machine needs stable torque transfer to maintain consistent roll movement.

The lug configuration can also be selected according to the core size, roll weight, web width, and working conditions. For demanding applications, the shaft structure can be engineered around the required torque and load rather than relying on a one-size-fits-all configuration.

Faster Roll Changeover
One of the practical advantages of a pneumatic lug shaft is the simple inflation and deflation process. Once the air supply is activated, the lugs expand to secure the core; when the air is released, they retract so the roll can be removed with less manual adjustment.

This makes the shaft well suited to production lines where rolls are frequently changed, helping operators reduce handling time and keep the winding or unwinding process moving efficiently.

Applications

Custom Lug Type Pneumatic Air Shafts can be integrated into:

• Slitting and rewinding machines
• Winding and unwinding systems
• Printing presses
• Flexible packaging equipment
• Film and paper converting lines
• Coating and laminating machines
• Foil processing equipment
• Label and textile processing
• Roll-to-roll production equipment
• New energy material processing

The lug structure is especially practical for applications requiring positive core engagement and reliable torque transmission during continuous roll handling.

Factory-Direct Custom Manufacturing
AstraRoll is a source manufacturer of pneumatic air shafts, providing direct production, customization, and engineering support without unnecessary trading layers. This allows us to offer competitive factory-direct pricing while maintaining control over shaft machining, component assembly, and production consistency.

Whether the requirement is a single replacement shaft, a customized component for a new machine, or repeat production for equipment manufacturers, AstraRoll can manufacture according to the required dimensions and operating conditions.

Each project can be developed around the customer’s actual core, machine interface, load, speed, and installation requirements, making the Lug Type Pneumatic Air Shaft a flexible solution for both standard-looking and highly customized web handling applications.

Q1. Are you a trader or direct factory?

We are a direct manufacturing factory with over 20 years of expertise in high-end industrial rollers, casters and material handling solutions. Our facility operates with ISO-certified quality management systems, allowing us to maintain full control over production cycles and quality standards. Throughout two decades of growth, we have established deep, long-term strategic partnerships with several listed companies and global automation leaders, proving our reliability as a high-tier industrial supplier.

Q2. What are your main products?

AstraRoll specializes in the engineering and production of three core product lines: Industrial Rollers, Heavy-Duty Wheels, and Precision Casters. We do not just sell components; we provide integrated movement and transport solutions. Our products are widely utilized across high-demand sectors, including: New Energy, Lithium Battery, Mining, Heavy Industry, Medical Institutional, Agriculture and Logistics.

Q3. What about delivery time?

We deeply understand that project timelines are critical.
Standard Products: Usually dispatched within 7–15 working days if the components are in stock.
Customized/OEM Orders: Depending on the complexity and volume, the lead time typically ranges from 20–35 days. This includes time for technical drawing confirmation, specialized tooling, and rigorous pre-shipment testing.
Shipping Methods: We offer flexible global logistics solutions, including FOB and CIF terms. We ship via Sea Freight (for bulk industrial orders), Air Freight (for urgent project needs), and International Express (DHL/FedEx/TNT) for smaller components or samples.

Q4. How can I get a quote for customized products?

Since a significant portion of our business involves specialized engineering, pricing is tailored to your specific technical requirements. To provide an accurate quote, please provide the following details: Technical Drawings or Sketches, Application Environment, Quantity, Special Requests. Our engineering team typically reviews and responds to custom inquiries with a formal quotation within 24–48 hours.

Q5. What is your payment?

TT / Paypal / Western Union / LC / Credit Card etc. are all available to us.