MITSUHASHI CORPORATION
MITSUHASHI MRV-8 Mirabeauroll

Manufacturer: MITSUHASHI CORPORATION
Model: MRV-8
This is a rubber cylinder type wrinkle removal roll with an outer diameter of φ85 mm and a roll surface length of 700 mm or less.
It can remove wrinkles from nonwoven fabrics, plastic films, paper, glass fibers, metal foils, etc.
The rubber cylinder covering the outer surface of the roll expands and contracts as the roll rotates due to its special internal structure. When a web is wrapped around it, the expansion of the rubber cylinder spreads the web out, thereby removing wrinkles from the web.
Drawing

L: Roll length
① End plate
② M-type V-pulley, outer diameter Φ85
Features
This is a non-curved, straight, rubber tube-type wrinkle removal roll. It removes wrinkles without adding harmful distortion to the web.
- Scope of application
These wrinkle-removing rolls are designed for line speeds of 100 m/min or less and tensions of 100 N or less.
They are manufactured with an outer diameter of φ85 mm and a maximum roll face length of 700 mm.
However, the roll face length will vary in 25 mm increments due to the design. - Deployment amount
The expansion amount is determined by the angle and number of ring-shaped rotating bodies.
Note that the expansion amount cannot be adjusted.
Maximum expansion amount: 2.0 mm - Mounting direction
The sheet’s pass line can be adjusted in any direction, from horizontal to vertical.
The sheet winding angle onto the roll is generally used within the range of 30 to 90 degrees. - Wide range of application films
It is effective in removing wrinkles from a wide range of web materials, from ultra-thin (a few microns) flexible films to rigid metal sheets such as Cu and Al. - Support for high-speed lines
Compared to rubber cord type (FE) de-wrinkle rolls, this rubber tube type (MRV) de-wrinkle roll is designed to handle higher speed lines.
Maximum sheeting speed: 100m/min - Pulley for synchronous rotation
Due to its structure, there is rotational resistance. When used with low tension, attach a pulley to the roll and rotate it so that the line speed and the roll’s outer circumference speed are synchronized.
Specification
| Roll diameter (mm) | 85 |
|---|---|
| Roll length (mm) | ~700 (25 pitch) |
| Rubber expansion amount (mm) (*1) | ~0.9 |
| Line speed (m/min) | ~100 (Reference value under allowable tension) |
| Applicable Web | Nonwoven fabrics, films, paper, glass fibers, metal foils |
| environment | Drying (45-85%RH) (*2) Upper limit temperature 80℃ |
| Rubber material (*3) | EPT (white/black) NBR (white/black) |
*1 This is the amount of expansion when the sheet is hung at a 90° angle and a ring is used at a standard angle (3分).
*2 Special vacuum-compatible MRV rolls are also available.
*3 The properties of the rubber are described in the general catalog.











