大阪染織機械株式会社 Company Overview

The "curved shaft," which is the heart of the expander roll. While the one-time bending process used by typical large machines is efficient, it can accumulate "invisible twists" within the metal, potentially leading to breakage issues during long-term use. At Osaka Textile Machinery, we deliberately choose the inefficient "manual" bending process to avoid stopping our customers' lines. By carefully bending the metal while sensing its resistance, we minimize damage and drastically reduce breakage problems. We achieve an astonishing precision of ±0.5mm based on our unique standard, "arc height." Do you have concerns such as "the expander roll wears out quickly" or "there's variation in precision"? Although they may look the same, our "philosophy of craftsmanship" shows differences after 5 or 10 years. We explain this in detail in the article linked below. Please check out the full article from the related link!

"Even though we introduced an expander roll, the wrinkles won't come out..." The cause may lie in the setting of the "contact angle" used to wrap the sheet. In this article, we will provide a list of the correct considerations for the contact angle to maximize wrinkle removal effects, along with recommended values (guidelines) for different materials such as film, paper, and fibers. Additionally, we will explain common pitfalls, such as the tendency for wrinkles to form if wrapped too tightly, as well as how to choose the best roll for specialized line designs. To prevent loss of expensive base materials and stabilize quality, please refer to the main article through the related links for technical know-how!

"The expander roll is heavy to turn and scratches the film..." The cause may lie in the surface's "rubber hardness." In fact, just a slight change of 10° in hardness can result in a difference of about 1.6 times in the starting torque (the weight at which it begins to turn) of the expander roll. This article presents actual measurement data on torque changes due to rubber hardness! Furthermore, we explain the background of our "unique clearance adjustment technology," which achieves consistently stable rotation regardless of the inherent variability of rubber and environmental changes. If you are struggling with strict torque management, please check out the full article through the related link!