Paper Machine Press Roll Rubber Press Roll Jumbo Couch Roll

Product Description

Product Description

Paper Machine Rubber Press Roll
 

The press roller is the main component of the press device, press roll is used for the press section quickly dewatering and add the physical properties of paper. There are many kinds of press rolls, such as vacuum press roll, groove press roll, blind hole press roll, size press roll, etc.

Roller Surface covered rubber, The purpose of the coating is not only to consider the corrosion resistance of the press roll but also to provide good elasticity to ease the pressing effect of the upper roller on the wet paper and felt, so as to prolong the service life of the felt and reduce the "embossing" of the wet paper. The elastic rubber-coated lower roller can also ensure good contact between the two rollers, even dehydration effect, and compensate for the error of the crown value of the lower roller.

Now, we could provide Rubber Press Roll ,Grooved Press Roll , Jumbo Rubber Press Roll, Jumbo Blind Drill Press Roll, Vacuum Suction Press Roll , Press Suction Couch Roll , Suction Pickup roll ,Dryer Felt Roll ,Breast Roll ,Wire Guide Roll, Drive Wire Roll , Suction Touch Roll ,Couch Roll and etc.

Detailed Photos

Rubber/Grooved Press Roll for Paper Mill

Max Working Speed : 2000m/min Maximum Diameter: 1600mm Maximum Face Length: 14000mm

Rubber Press Roll is more important to provide good elasticity and ease the pressing effect of the upper press roll on the wet paper and felt, thereby prolonging the service life of the felt and reducing the "compression" of the wet paper.
The elastic encapsulated lower roller can also give the two rollers good contact and uniform dehydration effects, and compensate for the high error of the lower pressure roller.
The rubber hardness of the rubber roller in the production of general paper is usually 70 to 90 Shore hardness. Rubber rollers used for each press in the press section.
Groove Rubber Press Roll Compared with the ordinary press, the grooved press is easy to dehydrate, the linear pressure is lower and the thickness of the rubber layer is increased. Therefore, the middle height of the roller can be reduced to avoid the high and uneven water content on both sides of the paper, resulting in the ribbed channel. When pressing, the direction of the blanket and wet paper is also important. At the press outlet, the wet paper should be separated from the blanket as soon as possible, and the blanket should also be separated from the grooved roller as soon as possible, so as to avoid moisture returning to the blanket and the wet paper sheet. During operation, it is necessary to keep the groove of the groove press clean to prevent blocking and pay attention to the drainage of water in the groove. Also, the grooved roller needs to be equipped with a soft doctor blade to remove the high-pressure water from the groove to the roll surface.
 

Jumbo rubber Press Roll /Blind drill Jumbo Press Roll
Max Working Speed : 2200m/min Maximum Diameter: 1600mm Maximum Face Length: 120000mm

Jumbo Press roll usually refers to a nip composed of pressing rollers which a diameter of more than 1000mm. It is often used in the production of corrugated paper, cardboard, and other paper or cardboard with large basis weight.
Compared with ordinary presses, it has a wide nip formed by the large-spoke press, the paper sheet can be pressed for a long time in the nip. It can improve the dehydration efficiency, increases the de-watering capacity and paper quantity because of the two-way vertical dehydration design.At the same time, it can also reduce steam consumption in the dryer section and further reduces production costs. The strength and burst resistance of the paper also been improved.
Normally, the paper machine adopts this technology has the feature of high speed, low energy consumption, and good paper quality. Therefore, jumbo pressing technology and equipment have become the first choice in the speed-up and energy-saving of old paper machines and the design of new paper machines.

The blind hole press roll is covered with rubber or polyurethane on the roller surface. Surface hardness around 70-90 shore. A blind hole with a diameter of 2 mm and a depth of 12-15 mm was drilled on the rubber-coated surface. It can also drill two rows of blind holes with different depths and depths. The opening rate of the blind hole roller is about 25% - 30%, and its eyehole volume is about 5 times larger than that of the grooved roller, so it can accommodate more press water. Surface rubber or polyurethane can reduce the wear of the felt, and provide a wider pressing area, which is beneficial to increase the linear pressure in the pressing zone.

 

Vacuum Suction Press Roll

Max Working Speed : 2000m/min Maximum Diameter: 1300mm Maximum Face Length: 10000mm

Vacuum suction press roll is mostly used in medium and high speed paper machines.
The function of the vacuum chamber is only to suck the air in the shell holes. The thicker the roll shell, the more air volume is sucked. Therefore, the use of high-strength metal to make a vacuum suction press roll with a thin roll shell is beneficial to improve the efficiency of press dehydration. The vacuum pressure roller shell is covered with rubber with a thickness of 30-40mm. The advantage of encapsulation is to make the pressure distribution uniform, reduce the abrasion of the felt, and increase the pressure of the press line. Production practice shows that the axial and circumferential center distance of the holes on the vacuum pressure roller is smaller, and the number of holes is larger, which can significantly improve the dehydration effect of the vacuum pressure roller, thereby effectively eliminating the embossing phenomenon and extending the service life of the felt.
 

Suction Touch Roll / Couch Roll / Wire Guide Roll / Drive Wire Roll /Pickup Roll/ Breast Roll
Max Working Speed : 2000m/min Maximum Diameter: 1300mm Maximum Face Length: 1200mm

Suction pick-up roll usually have double vacuum chambers, its first chamber use for take the wet paper web from the net, the second vacuum chamber use for picking the wet paper closely with the felt to avoid being throwing out because of the centrifugal force. High demanding for synchronicity of transmission.
Suction Touch roll Mainly pairing use with Yankey, and high demanding of coating to the temperature.
Wire Guide Roll ,Breast Roll, Drive Wire Roll and Couch Roll are suitable for the wire section of ordinary paper machine, board paper machine and packaging paper machine.
The wire guide roll and drive wire roll are mainly used in the wire section of board paper machine and packaging paper machine. They can correct, support or adjust fabrics and paper webs.
The wire guide roll can introduce the fabric or paper web into the wire. Depending on the function and installation location, they can be dragged to run, or they can be installed with their own driving device. On the contrary, the driving roller has supporting and driving functions. They can also perform control and tension adjustment tasks.

Product Parameters

Elements of Press roll : Shell, Journal, Bearing House, Bearing ,etc
Shell :	Cast Iron or Stainless Steel
Journal:	Cast Steel or nodular Cast Iron
coating:	Rubber or PU and Blind Drill
Bearing:	SKF or FAG, etc
bearing house:	Gray Cast Iron or Nodular Cast Iron or Spheroidal Graphite Cast Iron
Elements Of Vacuum Suction Press Roll : roll body, vacuum box(single or double chamber), bearing house on DS and TS, shower pipe, air tube, regulating valve, pneumatic tyre, seal strip.

Dia:	460-1800mm
Face length:	2100-10000mm
Material of roller:	HT250-HT300
Shaft head:	45# steel, Bulkhead: HT250 or casting steel shaft head
Surface rubber thickness:	20-25mm

Different type rolls
 

Company Profile

LEIZHAN is a China Based engineering company and machinery supplier committed to offer complate solution and provide high-cost-performance equipments related to stock preparation and paper-making industry.

For years,we have insisted on taking customer's value as our center and having strict quality-control and innovation in the whole process. With advantage technology and excellent equipment,we provide one-stop service from consultation,process design and optimization,manufacture,installation,commissing and personnel training and so on.

At the same time,we can supply all kinds of stock preparation and paper making equipment and accessories.Besides,we can custom design according to customers' requirements. Our products have reliable quality and superior performance and have been exported to Poland,Greece,Turkey,Iran,India,Packistan, Bangladesh, Thailand, Indonesia, Philippines, Malaysia, Vietnam, Mexico, Guatemala, Costa Rica, Columbia, Egypt etc.