Paper Machine Chrome Yankee Dryer Cylinder for Kraft Paper

• After-sales Service: Provide Accessories, Video Instruction
• Warranty: 3 Year
• Certification: ISO 9001:2008, CE
• Surface Treatment: Polishing
• Manufacturing Process: Casting
• Material: Cast Iron
• Model NO.: LEIZHAN
• Pressure Design: 0.5MPa
• Hydraulic Test: 1.0MPa
• Design Temperature: 158 ºC
• Working Medium: Water Vapor
• Shell Thickness: Customized
• Roughness: 0.4-0.8
• Hardness: ≥hb220
• The Coating on The Surface: Chrome Layer
• Steam Header: Rotary Siphon Type
• Drawing: Customized
• Transport Package: Export Standard Packaging
• Specification: Customized
• Trademark: LEI ZHAN
• Origin: Jiangsu, China
• HS Code: 84399900
• Production Capacity: 80sets/Month

Product Description

Product Description

Dryer Cylinder is divided into :Cast Iron Dryer Cylinder,Steel Dryer Cylinder,Yankee Dryer Cylinder

All dryer cylinders, heads and journals are made of special cast iron. Separate journals are bolted onto the dryer heads. Dryer shells are ground on the outside and turned on the inside. All dryer journals with steam or condensate pipes have insulation sleeves. The inner surfaces have grooves for the stationary siphons. The front side ends of all dryers contain manholes.
Cast iron material are excellent in durability.This is because the free form flake graphite in the cast iron material ensured its high corrosion and erosion resistance. The cast iron also has good fatigue strength under the pressure roller forces. At the same time, cast iron itself has a good surface performance, does not need metal spraying treatment like steel dryer.

A Yankee dryer cylinder is a pressure vessel used in the production of tissue paper. On the Yankee dryer cylinder, the paper goes from approximately 42-45% dryness to just over 89% dryness. In industry, MG cylinders or Yankee dryers are primarily used to remove excess moisture from pulp that is about to be converted into paper. The Yankee cylinder can be equipped with a doctor blade and sprayed with adhesives to make the paper stick. Creping is done by the Yankee's doctor blade that is scraping the dry paper off the cylinder surface thereby crêping the paper. The crinkle (crêping) is controlled by the strength of the adhesive, geometry of the doctor blade, speed difference between the yankee and final section of the paper machine and paper pulp characteristics.

Structure of Dryer Cylinder

The main parts of the dryer include: Shell,Turbulator bars,Syphon, Shell head,Manhole cover,bearing ,Head cover, Steam Joint .

Production Process

 

 

Product Parameters

Cast Iron Yankee Dryer Cylinder

Cast iron dryer cylinder diameter up to 3680mm, width up to 12000mm.Body material is HT250-HT350, the grade of ductile iron is QT400-QT600, the hardness is up to HB190-280.
 

Diameter	Material	Design Pressure MPa	Hardness HB	Face Length mm	Working Speed m/min	Roughness (Ra)
1500	HT250-HT350	0.3-1.1	190-240	1450-10000	500-1200	0.1-0.4
1800	HT250-HT350	0.3-1.1	190-240	1450-10000	500-1200	0.1-0.4
2000	HT250-HT350	0.3-1.1	190-240	1450-8000	500-1200	0.1-0.4
2500	HT250-HT350	0.3-1.1	220-260	1450-8000	500-1200	0.1-0.4
3000	HT350	0.3-1.1	230-260	1450-8000	500-1200	0.1-0.4
3660	HT350	0.3-1.1	230-260	1450-8000	500-1200	0.1-0.4
3800	HT350	0.3-1.1	230-260	1450-8000	500-1200	0.1-0.4

Steel Yankee dryer cylinder

Steel dryer cylinder diameter up to 7500mm, width up to 6500mm.Body material is carbon steel.Working pressure above 1.0MPa.
 

Diameter	Φ3000	Φ3660	Φ3963	Φ4270	Φ4572	Φ4877	Φ5486	Φ6096	Φ6706	Φ7315
Max Linner Pressure KN/m	120	120	120	120	120	120	120	120	170	170
Max Steam Pressure MPa	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
Max Paper Width mm	5600	5600	5600	5600	5600	5600	5600	5600	5600	5600
Design Speed m/min	1200	1500	2200	2200	2200	2200	2200	2200	2200	2200

Detailed Photos

Packaging & Shipping

Accessories

Main accessories of paper machine yankee dryer are Rotary Joint, Siphon, Turbulator bars, Gear, Bearing and bearing house.

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.