PNEUMATIC MECHANICAL SHAFT (Mechanical Expanding Shaft – Screw-Driven Type, developed by PNEUMATIC INDUSTRIES CO., LTD.)
Fast, precise, and damage-free gripping of paper, steel, and plastic cores. Custom-built to fit your machinery.
The PNEUMATIC MECHANICAL SHAFT eliminates core runout through a screw-expansion mechanism, not air pressure. Unlike air shafts that rely on rubber tubes, its lugs expand by rotating the central screw, ensuring perfect concentricity between the core and the shaft. This delivers stable and reliable performance in today’s high-speed unwinding and winding operations. Key Advantages 1. Eliminates Core Runout Screw-driven lugs maintain perfect concentricity between the core and the shaft, preventing wobble even at high speeds. 2. Protects Core Interior Multi-point lug support minimizes damage to the inner surface of paper, steel, and plastic cores. 3. Quick & Easy Operation One-touch core mounting and removal with an impact wrench, with manual operation also available. 4. Lightweight, Strong, and Customizable Available in high-strength materials such as duralumin or steel. Shaft diameter, length, and shape can be tailored to customer requirements. For enhanced accuracy, durability, and efficiency, choose PNEUMATIC INDUSTRIES CO., LTD. Contact us at: 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.