【No drive required・Ultra low torque】The shaft is fixed, only the rubber rotates! Next-generation rubber roll that prevents scratches and wrinkles on films and non-woven fabrics 《Shipping available in as little as 3 days》
The pioneer of expander rolls, Osaka Textile Machinery, has developed the "Outer Wheel Rotating Type OS Rubber Straight Roll." Unlike conventional iron core direct-wound rolls, it adopts a unique structure where "the shaft is fixed and only the rubber sleeve (outer wheel) rotates." Internal bearings reduce rotational resistance to the limit. It smoothly "follows" the sheet's conveying force without the need for a motor or other driving devices. It is ideal for preventing "scratches" and "slips" in high-performance films, non-woven fabrics, and paper processing lines that are sensitive to tension. **Features** Incredible low torque performance: It rotates smoothly even with weak tension, minimizing the load on the product. Easy installation and replacement: Simply fix the shaft. No need for motors, complex bearing designs, or electrical work. Replacing existing lines or adding test lines is easy. Functional surface processing: Grooving (helical or parallel) and polishing can adjust grip and air release properties. Adaptable to harsh environments: Material selection such as fluororubber and corrosion-resistant specifications can be produced for acid-based chemical lines and special environments. Emergency response service: For φ100mm (EPDM) specifications, we have established a rapid delivery system that can ship within 3 to 5 days at the shortest.
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basic information
【Outer Wheel Rotating Type OS Rubber Straight Roll Specifications】 ■ Structure: Bearing-integrated, outer wheel rotating method. The shaft is fixed, and only the rubber sleeve rotates. No drive is required, and it follows with ultra-low torque, preventing scratches and wrinkles on the product. ■ Possible Sizes and Performance: - Outer diameter: φ50mm to φ125mm - Length: Up to 2,500mm - Speed: Up to 350m/min ■ Material and Processing: - Rubber materials: EPDM (standard), NBR, urethane, silicone, etc. Sleeve replacement is possible. - Surface processing: Polishing (grip adjustment), grooving (air release). *Crown processing is not possible. - Options: Teflon tube coating. ■ Installation Method: Shaft fixed type (if replacing from an existing shaft rotating roll, modifications such as fixing the shaft to the frame are necessary). ■ 【Fast Shipping in 3 to 5 Days】Immediate Delivery Service: Short delivery times are possible only for the specifications below. - Size: Limited to outer diameter φ100mm - Material: EPDM (hardness 50° to 60°)
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Applications/Examples of results
【Applications and Adoption Results】 Ideal for processes that dislike damage to products, as it allows for smooth following without the need for a drive mechanism. High-Performance Film: Prevents air entrapment with groove processing. Adjusts grip strength through polishing to eliminate slipping and wrinkles. Non-Woven Fabric, Paper, Printing: Achieves low-tension transport due to extremely low rotational resistance. Prevents "stretching" and "breaking" of ultra-thin materials. Special Environments (Acids and Chemicals): Features a fixed-axis design that reduces the risk of corrosion on metal parts. Combined with chemical-resistant rubber (such as fluorine) for extended lifespan. 【Installation Roles】 Used as guide rolls, touch rolls (pressing), liquid removal rolls, and free rolls for replacing or expanding existing lines.
Company information
Eliminate wrinkles and creases! The "OS Expander Roll" that astonishes the world. We eradicate the inevitable "wrinkles" and "creases" found in all sheet manufacturing environments, including film, paper, non-woven fabric, and metal foil. Osaka Textile Machinery is the expert in the **"Expander Roll"**, which removes wrinkles fundamentally without causing any damage or distortion to the material. Unique and unparalleled "divine" technology Japan's only ultra-high precision: The "vibration removal polishing" technique that polishes and adjusts in a curved state. We achieve a level of precision that is impossible for other companies, dramatically improving yield. Drive-less design: No motor required. It rotates solely through the conveying power of the sheet, reducing costs and equipment load. Repair experts: Capable of repairing and regenerating products from other companies, both domestically and internationally. Over 70 years of experience brings existing equipment back to life. Recognized capabilities by media and expos Featured in numerous TV news programs such as NHK and Fuji Television, consistently attracting attention. Additionally, we will exhibit at the 2025 Osaka-Kansai Expo, showcasing the essence of "wrinkle removal technology professionals" on the world stage. Our innovative technology will lead your manufacturing site to the next stage.
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