FAQs of Lug Type Expanding Shaft:
Q: How does the lug type expanding shaft work to secure cores during operation?
A: This shaft uses a lug-type mechanical expansion method activated by pneumatic force. When air pressure (57 kg/cm) is applied, the lugs expand outward to firmly hold the core in place, ensuring stable and precise winding and unwinding of materials.
Q: What core sizes and materials are compatible with this shaft?
A: The shaft accommodates standard core inner diameters of 3" (76 mm) and 6" (152 mm), and can be customized for other sizes. It is suitable for paper, film, foil, and flexible packaging cores, making it versatile for multiple industry applications.
Q: When should I replace the lugs or seals on the expanding shaft?
A: Replacing lugs or seals is generally required when you observe reduced expansion force, difficulty in holding the core, or visible wear and tear. The design allows for easy and quick replacement, minimizing downtime in your operations.
Q: Where can these expanding shafts be installed, and what machine ends are available?
A: They are compatible with various unwinding and rewinding machines in the paper, film, foil, and flexible packaging sectors. End designs include keyway, flange, and journal types, customizable to fit specific machine interfaces and installation requirements.
Q: What is the manufacturing process for Lug Type Expanding Shafts?
A: These shafts are produced using precision machining of alloy steel, aluminum, or carbon steel, followed by dynamic and static balancing. Depending on preferences, hard chrome plating or anodizing can be applied for enhanced surface hardness and corrosion resistance.
Q: What are the key benefits of using these shafts in industrial environments?
A: The shafts offer robust load capacities (up to 2000 kg), customizable design, low maintenance, high precision (+/- 0.02 mm), and long service life thanks to strong materials and surface treatments. Their dynamic/static balancing ensures vibration-free operation for improved product quality.
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