Reducing adapter Leaf Type Air Shaft Adapter

interfaceshaftfor spindles

Overview
The XW Machinery Leaf Type Air Shaft Adapter is designed to convert standard 3-inch air shafts into 6-inch core winding systems for industrial rewinding and unwinding applications. Manufactured from high-strength aluminum alloy with precision machining and hard anodized treatment, this pneumatic core adapter provides stable expansion, accurate roll positioning, and reliable torque transmission during high-speed operation.

What is a Leaf Type Air Shaft Adapter?
A leaf type air shaft adapter is a pneumatic sleeve installed over a 3-inch air expanding shaft to allow it to handle 6-inch paper cores or plastic cores. Instead of purchasing a separate 6-inch air shaft, operators can use a lightweight adapter to achieve the same winding function more economically and efficiently.

Also known as

• Pneumatic core adapter
• Air drum
• Air cover
• Rewinding core adapter
• Air shaft sleeve adapter

Key Features

• Converts 3-inch shafts to 6-inch core systems
• Leaf type expanding structure
• Lightweight aluminum alloy body
• Stable pneumatic expansion
• Hard anodized surface treatment
• Easy installation and removal
• Reliable torque transmission
• Excellent wear resistance
• Suitable for high-speed rewinding
• Custom sizes available

Applications

• Slitting machines
• Rewinding systems
• Flexographic and rotogravure printing machines
• Film converting machinery
• Coating machines
• Paper processing systems
• Plastic film production lines
• Foil rewinding equipment
• Flexible packaging machinery

Specification Table
Item: Product Name — Leaf Type Air Shaft Adapter
Core Conversion: 3 Inch to 6 Inch
Material: High-strength Aluminum Alloy
Expansion Type: Pneumatic Leaf Type
Inner Diameter: 75mm / 76mm
Outer Diameter: 150mm-158mm
Surface Treatment: Hard Anodized
Application: Winding & Unwinding Systems
Installation: Sleeve Type
Customization: Available

Advantages of Leaf Type Adapters

• Lower equipment cost compared with dedicated heavy 6-inch air shafts
• Faster roll changes and reduced downtime
• Reduced shaft weight and easier handling
• Better production flexibility for converting lines

About the Manufacturer
XW Machinery specializes in industrial web handling and tension control components, including air expanding shafts, differential shafts, safety chucks, air shaft adapters, magnetic powder brakes, tension controllers and web guide systems. Their adapters are engineered for stable industrial performance, high precision, long service life, lightweight operation and OEM compatibility.

Caractéristiques / spécifications techniques

• Product name: Leaf Type Air Shaft Adapter
• Core conversion: 3-inch to 6-inch
• Material: High-strength aluminum alloy
• Expansion type: Pneumatic leaf type
• Inner diameter: 75mm / 76mm
• Outer diameter: 150mm–158mm
• Surface treatment: Hard anodized
• Installation: Sleeve type over 3-inch air expanding shaft
• Suitable for: Slitting, rewinding, printing, coating, film converting and paper processing
• Options / customization: Diameters, lengths and expansion structures available
• Typical available lengths shown on page: 250mm, 300mm