Levcon Jaykay

Doctor blade material selection and Doctor Blade thickness are primarily determined by the roll material and roll hardness. Soft rolls (over 10-15P&J) generally use either 2.3mm thick synthetic or 4 mm thick polyethylene Doctor Blades. This reduces the risk of the Doctor Blade digging into the cover and causing damage. These are primarily applicable in the wire part and sometimes press part as deflectors.

A hard roll in the press, calendar or sometimes in the wire generally needs a thinner synthetic fiberglass Doctor Blade ranging from 1.5-1.9mm thick. Final thickness selection is determined by weighing several factors including holder design. While thinner Doctor Blades often clean the roll more efficiently due to higher shearing action, higher thickness can often improve Doctor Blade life.

Experience has shown that the bevel angle must be as equal as possible to the working angle. The bevel angle however cannot be too acute so as to ensure that during high linear load application the tip does not bend . At the same time the bevel angle cannot be too high so that that the doctored material are not easily removed . Keeping in view the aforesaid factors most doctor blades are supplied with a standard 30-degree bevel with a flat land area.

We can manufacture tailor-made Doctor Blade bevel solutions that can enhance doctor efficiency. Specific angles can also be supplied to improve sheet shedding.

A Complete Range Of Doctor Blade Fasteners & rivets are imported from our Licensor Bonetti SpA, Italy to suit Any Doctor Blade Holder. Doctor blades are inserted and fixed in each type of holder by fasteners & rivets attached to the Doctor Blade. Every doctor blade is designed to fit in a specific type of Doctor Blade holder.

Roll Hardness

Bevel Angle

Fasteners