Innovating the quality of high-load lines with hydraulic control that balances power and precision.
【Product Features】 • Powerful and stable curvature adjustment through hydraulic control By utilizing a hydraulic cylinder, it provides greater adjustment force than manual systems. It enables powerful and stable curvature (bow) adjustments even for wide and high-tension sheets. • Adjustable for optimal wrinkle removal effect even during operation Similar to manual systems, the degree of curvature can be adjusted without stopping the equipment. It responds instantly to changes in sheet condition and operating circumstances, maintaining the highest quality at all times. • Versatile dual-functionality as a straight roll By setting the degree of curvature (bow) to zero, it also functions as a complete straight roll. It performs various roles with a single unit, enhancing the versatility of the equipment.
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basic information
Size (Product Specifications) • Rubber outer diameter (mm): φ125 to φ270 • Rubber surface length (mm): 1000 to 5500 • Note: We also accept custom manufacturing tailored to your equipment and applications. Please feel free to consult us regarding dimensions other than those listed above.
Price information
To propose the optimal specifications and prices for our customers, we first accept technical consultations. Please feel free to contact us via the inquiry form or by phone along with your request for a quote.
Delivery Time
Applications/Examples of results
• Films: Optical films, packaging films, agricultural films, battery separator films, thin films, etc. • Paper: High-quality paper, cardboard base paper, specialty paper, etc. • Metal foils: Secondary battery electrode materials (copper foil, aluminum foil), foils for capacitors, etc. • Textiles and non-woven fabrics: Glass fiber fabrics, carbon fibers, various industrial non-woven fabrics, mask materials, etc. • Others: All sheet-like web materials (Roll to Roll transport items)
Company information
We are Osaka Senshoku Kikai Co., Ltd., the pioneer and first manufacturer to domestically produce "Expander Rolls" in Japan. We provide fundamental solutions to eliminate "wrinkles," "shrinkage," and "slippage" in Roll-to-Roll web handling processes for films, metal foils, and non-woven fabrics. [Our Core Strengths] ◆ Japan's Only "Precision Curved Grinding" Our unique technology enables precision grinding while the roll is in its curved state. This eliminates vibration even on high-speed lines for ultra-thin films, dramatically improving your production yield. ◆ Ultra-Low Torque "Drive-less Design" No motor required. Our rolls rotate smoothly driven solely by the web's conveying force, effectively preventing slip scratches on your products. ◆ "Special Materials" & "Retrofitting" Fully compatible with special materials such as "fluorine rubber" (FKM), which is essential for high-temperature and adhesive lines. We also have an extensive track record of replacing/retrofitting other manufacturers' flat-type rolls with our curved rolls. ◆ Repair & Refurbishment for All Brands We provide repair and restoration services for expander rolls from any manufacturer, both domestic and international. [Proven Track Record] Since our founding in 1951, our cutting-edge technology has been featured on major national TV news programs and exhibited at the Expo 2025 Osaka, Kansai. Beyond standard catalog specifications, we promise to offer the optimal proposals and solve your line's most difficult challenges. Please feel free to contact us.
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