A new type of core chuck – clamps using only rotational force, no pressing force required.
Unlike air chucks or conventional mechanical chucks, Fine Lock clamps the core using only rotational force. It combines high concentricity with an ultra-compact, lightweight design and delivers outstanding performance in high-speed winding and unwinding operations. Key Features ・No Pressing Force Required; Supports Heavy Loads It clamps solely by rotational force. The compact body is engineered to support heavy loads. ・Ultra-lightweight and Compact Its minimal mass reduces rotational inertia (GD²), enabling ultra-high-speed rotation. The non-pressing mechanism avoids power loss and allows precise torque control. ・Always Concentric with the Winding Shaft Each lug (claw) deploys in sync with rotation to maintain concentricity. It clamps in both clockwise and counterclockwise directions, enabling both forward and reverse winding. Backed by PNEUMATIC INDUSTRIES CO., LTD.’s long-standing expertise in unwinding and rewinding technology, Fine Lock is built for durability and long service life. Ready to enhance your winding and unwinding processes? Contact PNEUMATIC INDUSTRIES CO., LTD., your trusted partner with proven technology. Email: sales@pneumatic.co.jp
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Our Commitment For nearly half a century, Pneumatic Industries has been a dedicated and trusted specialist in unwinding and rewinding shafts. Since all of our products are made to order and tailored to your specific requirements, we take great pride in our customers’ praise, such as: “Pneumatic products last long.” “For complex products, go to Pneumatic Industries.” “You can always rely on Pneumatic.” These words inspire us to keep improving every day. Even if you are just in the planning stages, we are here to help. If you face challenges with unwinding or rewinding shafts, we invite you to consult with us.
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Our Expertise & Experience For nearly half a century, Pneumatic Industries has been a dedicated air shaft manufacturer. Our products are trusted by countless companies in the converting industry, from paper and film manufacturers to leading equipment builders and processing companies. Our shafts are at the core of their operations. While confidentiality agreements prevent us from naming clients, we proudly serve top-tier companies across multiple sectors. Our customers often describe our products as durable, reliable, and long-lasting—qualities that help them maintain consistent performance and efficiency. We would be honored to earn your trust and look forward to the opportunity to provide the same proven quality that our customers depend on.
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PNEUMATIC INDUSTRIES CO., LTD. designs, manufactures, and supplies air shafts, mechanical shafts, and related equipment. We custom-engineer products for unwinding and rewinding systems used in the production and converting of film and sheet materials. Our lineup includes the durable Pneumatic Air Shaft, the Pneumatic Mechanical Shaft with high concentricity and low runout, the Pneumatic Core Chuck that simplifies core loading and removal, and the PN Expander Roll that helps prevent wrinkles during winding. Contact us to specify a configuration that fits your process. [Repairs and Maintenance Inspections] To ensure safe, long service life, we provide repair services and maintenance inspections. Rely on our proven expertise and experienced technicians. If you are considering repair or replacement, please consult us. We will assess the product’s condition and recommend the most suitable option.