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Rotary Technology (Guangzhou) Co., Ltd.

Phone:+8620 8678 8828 

Fax:+8620 8678 8820

Email:sales@rotary-technology.com 

Address:A6, No 288 Juhuashi Road, Huadu District, Guangzhou City, Guangdong Province, P.R. China

Frequently Asked Questions about Using Magnetic Rollers and Flexible Blades (3)

2022-06-27 14:05:27
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Q: What is the difference between the flexible blade used on the gap type rotary machine and the flexible blade used on the full rotary machine?

A: The manufacturing principles and methods of these two types of flexible blades are exactly the same. It's just different in design and trimming. Most of the flexible blades used on the full rotary machine cover the entire magnetic roller body to match the synchronization of printing and die cutting on the full rotary machine. Most of the flexible blades used on the gap type rotary machine cover the part of the magnetic roller body to match the forward and backward method of the material on the gap type rotary machine. Since the flexible blades used on the gap type rotary machine are often designed with smaller blade sizes or fewer lines, the price is relatively cheap. When ordering, the user is required to provide the manufacturer with details similar to the flexible blades used on full rotary machines, such as line drawings and die cut material details.

Q: What is the difference in the life of the flexible blade compared to the engraving round knife?

A: Under normal circumstances, the life of a flexible blade will be less than that of a fully hardened round knife, but because there are too many factors to wear the blade, the customer uses a flexible blade to make die-cutting similar to the round knife There are many examples of the number of revolutions. Depending on whether the wear is natural or impact wear, if the wear is not severe and the cut tissue is easy to cut, the flexibility of the flexible blade will be reflected: the user can add a layer of tissue paper, film or coating to the bottom of the blade. The last layer of ink can be temporarily cut where it was not originally cut, so that the bulk goods to be rushed can be completed first. For example, the engraving round knife can only be returned to the mold factory for repair under the same circumstances.

Q: Can the flexible blade be repaired after it is worn out?

A: Not in most cases. In addition to the cases mentioned above, add a thin layer of tissue paper, film or apply a layer of ink to the bottom of the blade to make temporary adjustments. If it is returned to the original factory, the blade can be slightly repaired, but it is not recommended under normal circumstances, because the flatness of the blade cannot be guaranteed, and the traces on the bottom paper after cutting are difficult to ensure uniformity.

Q: How to maintain and prevent rust of flexible blades?

A: After the flexible blade is used up, its surface should be cleaned of ink, glue and any other impurities. The Rottery flexible blade adopts the surface treatment method which is popular in Europe, and is equipped with special chemical composition that can be used to prevent rust. It has been able to resist rust in most cases. However, due to the wear and tear of the surface coating during die-cutting and possible back-grinding, it is recommended to spray a little WD40 evenly after use and cleaning, and then seal and package it to achieve the purpose of complete rust prevention.

Q: How is the flexible blade packaged and placed?

A: Most flexible blades require edge bending, especially for blades with small size magnetic rollers, which may require full bending. Therefore, most of the flexible blades are packaged in tubes. After use, the user sprays rust inhibitor on the flexible blades, seals them in plastic bags, and puts them back in the tube packaging in roll form. It can also be placed in a plastic bag and placed in a straight line after sealing.

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