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RK Mill Roll

The 3M RK Mill Roll was designed to be the world's best bridle roll and top choice when large diameters, coefficient of friction, and long life are the major design criteria.  The RK Mill Roll was released in 1995 to supply the end user with world-class coefficient of friction and roll life at a lower unit cost in large roll diameters compared to the Neutral Mill Roll.

 RK Mill Roll

The RK Mill Roll is made from many of the same components as the 3M Neutral Mill Roll. Therefore, the RK Mill Roll similarly offers exceptional life and coefficient of friction. 

Additionally, the RK Mill Roll is a unique unified sleeve design, as opposed to laminated discs. This sleeve construction makes the RK Mill Roll the most durable non-woven roll on the market in terms of edge-cut. The RK Mill Roll is close to the "install it and forget it" roll that many maintenance and line supervisors require.

The RK Mill Roll remains a premium bridle roll recognized for great, consistent, and long-lived coefficient of friction in some of the most demanding operations - particularly aluminum applications. There are numerous cases of slipping bridle problems solved by the 3M RK Mill Roll to indicate that it is an effective solution for this problem.

The RK Roll has shown that its coefficient of friction capabilities can reduce the number of bridle drives needed for new line designs. This can save cash associated with the considerable costs of bridle rolls in terms of floor space costs, capital equipment costs, roll costs, long-term maintenance costs, among other more specific costs.

Besides the great life and coefficient of friction, the RK Mill Roll also offers the traditional 3M Mill Roll value factor of minimizing marking of the strip. All these factors have also made the RK Mill Roll a major success for large diameter deflector rolls (e.g., the exit end of push pull pickle lines before the recoiler).

The RK Mill Roll is available in one density and in limited sizes. The outside diameter (OD) to inside diameter (ID) relationship of the sleeve type RK Mill Roll is always the same regardless of size: OD = ID - 1.5" (38mm)
Nominal OD sizes: 18"(457mm), 30"(762mm), 36"(914mm), 42"(1067mm), 48"(1219mm)

Outstanding Characteristics:
Coefficient of Friction, Life

Limitations:
Roll/Shaft size options, sleeve design is not repairable

Quick Parameter Overview:
Operational pH Range: 2~10
Maximum Temperature*: 141°C (285°F)

*The RK Mill Roll is successful in applications well beyond this temperature that have been assessed by 3M Mill Roll technical representatives and approved by them.
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