Rolling covers

Rolling covers are used in lack of space as a subsituion bellows. It dosn't offer high resistance.

We Supply Rolling Covers:

• Without protective case,
• With protective case.

And according to the material used:

• With a strip of regular steel,
• With a strip of stainless steel,
• With a plastic strip.

For use at high temperatures steel or plastic strips of glass fibre, viton or preotex can be used.

Rolling Covers without Protective Case

For fastening the Rolling Covers without a protective case standard holders can be used (see the drawings) that provide simple and stable fastening. For standard fastening 2 basic types were developed that are used according to the requirement type. We also make special holders according to the customer's wish.

Rolling Covers with Protective Case

While using steel as the external strip material we recommend the design with the protective case for safety reasons. With smaller diameters of the roller with a shorter extension this is unimportant. The steel strip cannot be used if the strip diameter is under 40 mm and the strip width over 300 mm.

The largest selection of possibilities concerning drives and dimensions is in combination with the plastic strip. This way a cheaper version without the protective case can also be chosen if the level of pollution is limited. Dimensioning of the rolling cover is governed by certain factors that are stated in construction tables. These apply generally for standard use, the final design is determined upon an agreement with the customer.

Important warning:

While fastening the Rolling Covers it is necessary to consider the following factors:

• Running speed
• Planned total number of lifts, lifespan
• Fastening position, direction of splinter flow direction

Rolling Cover Drives

Rolling Covers are supplied with three different drive concepts. Drive option depends on the required cover type, its size, and the amount of expected costs.

FM-drives – they are used with steel strips mostly with a higher tension load.

SA-drives – they are supplied only with standard steel strip because the external strip used for covering also serves as spring drive.

TF-drives – they are used for high running speeds with minimum strain. We recommend them mostly for plastic strips.

Always state the design type of the protective case (A) together with the manner of ending the strop (F) in the demand/order.