Expander roll specialist
Osaka Senshoku Machinery Co., Ltd.
With over 70 years of specialized technology and experience, we eliminate wrinkles and shrinkage in films, paper, metal foils, and nonwoven fabrics.
Osaka Senshoku Machinery Co., Ltd.
Proof is better than argument! Demonstration data by size speaks volumes about our overwhelmingly low-torque technology.
[Evidence-Based Data] From "de-driving" small-diameter models to "energy saving" in large-diameter models
Our expander rolls do not rely on special bearings; instead, they minimize rotational resistance to the greatest extent possible through our "advanced assembly technology" cultivated over many years.
From small-diameter models that rotate solely on sheet tension to large-diameter models that drastically reduce motor load, see the "amazing lightness" that each size demonstrates in its respective environment through empirical data.
1. Extremely low torque (φ100・φ120) that eliminates the need for the drive motor.
We are releasing some excerpts of performance data for the extremely low-torque models (MT/MTL type) that rotate solely by the tension of the sheet, particularly in the highly demanded φ100 and φ120 sizes.
◇φ100 × 1000W (for film) | Starting torque: 20g - 30g | Starts rotating with approximately 1/10 the force of conventional models.
◇φ100 × 1500W (for film) | Starting torque: 35g ~ 40g | Forced drive motor completely unnecessary
◇φ120 × 1500W (for film) | Starting torque: 60g - 70g | Reliable wrinkle removal even for thin and low-tension materials
*Measurements are based on performance under specific conditions. Even for small diameter sizes of φ100 or less, we have achieved a starting torque of 100g or less using standard assembly techniques.
2. Achieves dramatic energy savings even with large diameters and long lengths (φ125 and above)
Are you resigned to the fact that "large-diameter sizes are heavy, so it's inevitable that the electricity costs for the drive motor will be high"?
Our assembly technology delivers significant cost savings, even in large-scale production lines where drive motors are essential.
Amazingly light despite its long length: Even with a long size of φ125mm rubber outer diameter x 3200W, it achieves extremely smooth rotation with a starting torque of approximately 150g.
Approximately 1kg load reduction compared to conventional models: For large diameter sizes of φ150 or more, it rotates with nearly 1kg less force compared to conventional rolls.
[Energy-saving effect created by low torque] Light rotation means that the load on the motor is extremely low.
Even in equipment environments that use motors in the same way, simply adopting our expander rolls can reduce unnecessary power consumption, directly leading to a significant reduction in overall factory electricity costs (running costs) and CO2 emissions.
Would you like to explore how much cost reduction is possible in your company's production line environment?
From "reducing maintenance man-hours through motorless operation" to "reducing electricity costs for large-diameter rolls," we will propose the optimal plan and cost simulation tailored to your current equipment environment.
We also have "test samples" available so you can experience the amazing lightness for yourself.
Please feel free to contact our technical staff first.