The Specialist in Expander Rolls
Osaka Senshoku Machinery Co., Ltd.
With over 70 years of expertise and experience, we eliminate wrinkles and shrinkage in films, paper, metal foils, and non-woven fabrics.
Osaka Senshoku Machinery Co.,Ltd,
Facts over words! Empirical data by size proves our overwhelming low-torque technology.
[Empirical Data] From "Drive-Free" Operation for Small-Diameter Models to "Energy Savings" for Large Diameters.
Our OS Expander Rolls do not rely on special custom bearings; instead, they minimize rotational resistance to an absolute minimum through our "high-precision assembly technology" perfected over many years. From small models that rotate solely by web tension to large models that significantly reduce motor load, please review our empirical data to verify the "astonishingly smooth rotation" across various production environments.
1. Ultra-Low Torque That Eliminates the Need for Drive Motors (φ100 / φ120)
Especially for the highly demanded φ100 and φ120 sizes, we present excerpts of practical data for our Ultra-Low Torque models (MT/MTL types), which are driven exclusively by the web tension of the material.
◇ φ100 × 1000W (for Films) | Starting Torque: 20 g – 30 g | Rotation starts with only about 1/10 of the conventional force
◇ φ100 × 1500W (for Films) | Starting Torque: 35 g – 40 g | Additional drive motors become completely unnecessary
◇ φ120 × 1500W (for Films) | Starting Torque: 60 g – 70 g | Reliable wrinkle elimination even with thin materials and low web tension
These measured values are results under specific conditions. Even for small diameters under φ100, we achieve a [Starting Torque of under 100 g] thanks to our standardized, high-precision assembly technology.
2. Dramatic "Energy Savings" Even with Large Diameters and Long Rolls (φ125 and above)
Have you given up, thinking that "large-diameter rolls are heavy, so high electricity costs for the drive motor are inevitable"?
Our assembly technology delivers an overwhelming cost-reduction effect even in large-scale production lines where drive motors are essential.
・Astonishingly lightweight rotation even for long rolls: Even with long dimensions such as a rubber outer diameter of φ125 × 3200W, we achieve extremely smooth rotation with a starting torque of only approx. 150 g.
・Load reduction of approx. 1 kg compared to conventional models: For large diameters of φ150 and above, our rolls rotate with almost 1 kg less force compared to standard rolls on the market.
[The Energy-Saving Effect of Low Torque] A lighter, smoother rotation directly means that "the load on the drive motor is extremely low."
Even in existing motor-driven equipment environments, simply adopting our expander rolls suppresses unnecessary power consumption, directly leading to a significant reduction in electricity bills (running costs) and CO2 emissions for the entire factory.
Would you like to evaluate the cost-reduction potential within your own production line?
From "reducing maintenance hours by eliminating drive motors" to "cutting electricity costs for large-diameter rolls," we will formulate the optimal implementation plan and a concrete cost simulation strictly tailored to your current equipment environment.
Furthermore, we offer "test sample rolls" so you can experience this unprecedented, astonishingly smooth rotation directly on-site.
Please feel free to contact our technical experts today for an initial project evaluation.