Uniformly spreads wrinkles in sheet processing, improving productivity and reducing costs — with consistent performance across the full roll width.
The PN Expander Roll is a straight roll expander designed to eliminate wrinkles in sheet materials, preventing production problems and ensuring stable operation. An adjustable mechanism with inclined units expands and contracts the rubber tubes mounted on the roll surface. This allows precise control of spreading according to the sheet conditions, without web deviation or excessive stretching in the center, contributing to high-quality output. Key Features Excellent product characteristics • No lateral deviation like curved expanders. • Prevents excessive tension in the center and sagging at the roll ends. • Flat roll design allows installation even with a larger wrap angle. • Prevents sheet biting during single-shaft slitting by spreading the web. Easy maintenance • Only consumable parts need replacement, which can be done easily on-site, ensuring long-term, reliable operation. If you are looking for a PN Expander Roll, trust PNEUMATIC INDUSTRIES CO., LTD. — delivering proven technology and reliability. Contact us: 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.