Paper Machine Vacuum Wire Return Roll

• Customization: Available
• After-sales Service: Provide Accessories, Video Instruction
• Warranty: 1 Year
• Model NO.: DD380-1100
• Surface Treatment: According Request
• Manufacturing Process: Casting
• Material: Stainless Steel or Rubber Surface
• Guarantee: 1 Year
• Condition: New
• Transport Package: Standard Sea Shipment Package
• Specification: According to customized
• Trademark: LEI ZHAN
• Origin: China
• HS Code: 84399900
• Production Capacity: 50000 Piece/Year

Product Description

Product Description

The vacuum return roll is used in the forming part of the paper machine. It has the same structure as the vacuum press roll and is usually equipped with an auxiliary drive. When the lower felt with paper and the upper felt meets the lower felt at the return roll, an upper roll is added to the vacuum return roll to form a return roll press. Before the upper felt enters the return roll nip area, it is also necessary to use a suction box to make it as dry as possible, and a pre-wrap section is set on the return roll to remove air and gradually increase the degree of pressure on the paper web.

Detailed Photos

 

Product Parameters

The bottom roll of the vacuum return roll should be equipped with a white water pan with a large wrap angle to cover the roll except the part wrapped by the fabric, so that the white water in the roll hole can be thrown into the white water pan.

Product Name	Vacuum roll
Application	Paper machine
Roller Material	Carbon/stainless steel,Aluminum alloy or other specified material
Product definition	Paper Making Press Roller
Diameter	460-1600mm
Length	2100-12000mm
Color	Customers' Request
Surface treatment	Trivalent chromium galvanized, chrome, paint, anodized, Teflon spray
Certificate	ISO9001
Type	Make-to-order
Product Keywords	driving return roll for paper mill

The adhesive layer have good elasticity, compression resistance, flex resistance and thermal conductivity.

The maximum tolerance of the hardness should be within the allowable range, otherwise the unevenness of the pulp will be uneven and the quality of the paper will be affected.

Generally, the Shore hardness is 40°~100°, and the tolerance is ±2°~±4°.

Stainless steel rolls body have the following advantages over tin bronze rolls:

1.Has higher rigidity and mechanical strength. Its tensile yield strength and impact toughness are more than double that of copper, which is conducive to improving the dehydration rate.
2.Has higher hardness and abrasion resistance, good impact toughness. It does not deform during long-term high alternating load operation, which is incomparable with copper structure.
3.It has high hardness and abrasion resistance, has extremely high corrosion fatigue strength and ability to resist corrosion cracking and corrosion wear, which is 2-3 times that of copper alloys, and the service life is also increased by more than 2-3 times.

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.