High Speed Fourdrinier Culture Paper Machine Dandy Roll

Product Description

Product Description

Paper machine dandy roll,  is used on paper machine fourdrinier wire section for those paper grade which requires better formation and minimum difference of two surface.
Dandy roll has great effect for paper quality.The surface of the network is usually a flat network, requires a good permeability, the network wire than the line wire to be appropriate some finer.
According to the production of paper, the speed of the paper machine, forming network width and mesh size to choose the appropriate diameter, width and mesh size.

Application

Dandy roll(Finishing roll ,watermark roll)is a light-duty copper -coated hollow roll,it is installed on forming mesh after the first two or three vacuum suction box.
Dandy rolls are used for improving formation, closing up the sheet, smoothing the top side surface, improving felt side quality and print ability, and improving drying.

Dandy roll systems are efficient formers to improve the paper quality and are used on Fourdrinier machines to improve sheet formation. In modern paper machines, these systems are nowadays an integral part particularly in the production of decor papers and cigarette papers. The dandy roll diameter is determined according to the production speed.

Principle

The dandy roll works by being immersed into the free suspension and lightly wrapped by the wire. By unwinding the dandy roll wire on the top side of the web, the latter is smoothed. The intake pressure causes the stock water to penetrate the dandy roll fabric into the interior of the dandy roll. The flow is thus oriented in such a way that freely floating fibers in the suspension reach the fabric and are deflocculated there. The combined steam-water spray tube, the simple adjusting unit, quick retraction and heated chamfers are some of the other tried and tested features of the well-engineered dandy roll device.
Component:Cleaning system,covering,external saveall pans,the dandy frame,bearing journals,drives,dandy stands,bearing&housings.

 

Product Parameters

Roll Diameter (mm)	Ø600, Ø800, Ø1000, Ø1200, Ø1400, Ø1500
Face Length	2000-6000mm
Application	Writing printing paper, decoration paper, specialty paper, copier, coated duplex board (middle layer)
Grammage range	25-150GSM
PM operating speed range	100-600MPM
Dandy roll speed	100-110RPM
Supply Scope	Complete set of dandy roll with driving and control

Packaging & Shipping

Our Equipment

Our Service

Pre-Sales Service
1.Offering comprehensive technical and business consultation services;
2.Proposing the most suitable scheme and equipment for our clients;
3.Designing and fabricating targeted products according to the special requirements of clients;
4.Training periodically high qualified service technician.

After-Sales Service
1.Highly inspecting equipments in every working procedure, quality comes first;
2.Fast & Safe Delivery;
3.Assisting our clients for foundation construction of equipments;
4.Dispatching engineers to install and debug equipments;
5.Training the first-line operators on site;
6.Regularly visit clients to solve production problems;
7.Providing life-long maintenance service;
8.Providing technical exchanging.