Vacuum couch roll is one of the main parts for fourdrinier dehydration and transmission of paper machine. The roller shell of vacuum couch roll designed by our company is made by precision machining with SUS304/316 stainless steel rolling. The roller surface openings are arranged into a double helix, the opening rate is more than 60%, effectively improving the strength and dewater evenness of the roller shell. Special seal has good self-lubrication and wear-resisting performance.
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1.Working principle of suction couch rollerThe working principle of suction rollers is mainly based on the principles of vacuum adsorption and pressure difference. When the pulp passes through the vacuum roller, the vacuum chamber inside the roller forms negative pressure, attracting the moisture in the pulp. After being adsorbed onto the surface of the roller shaft, the moisture content of the paper significantly decreases through subsequent pressing and drying processes.
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Suction Couch rolls Shell material SS 304 ,SS316,SS316L or douplex stainless steel Shaft cast steel or QT500-7 suction box SS 304 Gear box bronze Diameter 400-1200mmFace length 2000-9000mm Speed up to 2000mpm
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suction couch roll play the most complicated and the most important part in kraft paper machine running, generally speaking, the better and more reliable the suction rolls are,the higher yield and better quality of paper come.Daxing's Suciton Couch roll can disign as customer's need.
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Vacuum Roll for High Speed Paper MachineShell material Q235B or Q345B rolled and welded pipe Shell thickness base on machine speed and roll size Head HT250 cast iron Surface polised with hole Bearing SKF ,NSK ,FAG Diamter 700-1200mm Face length 3000-14000mm work speed 2000mpm Our Packagings：Daxing has wooden packing and steel packing for oversea market.Our Patents:
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Vaccum suction roll :The vacuum suction roll is a key equipment in the press section, and its function is to transfer the paper sheet after the wire section is formed to the press section. Whether it is normal is very important to the stable operation of the paper machine.They are mainly composed of a rotating cylinder, a vacuum box inside the cylinder, a bearing support device, and a transmission device.Structure principleThe vacuum suction roll is an important component of paper leading from the flat roll of the wire section to the press section.
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Vacuum press suction roll The vacuum suction roll is a key equipment in the press section, and its function is to transfer the paper sheet after the wire section is formed to the press section. Whether it is normal is very important to the stable operation of the paper machine.They are mainly composed of a rotating cylinder, a vacuum box inside the cylinder, a bearing support device, and a transmission device
Structure principle
The vacuum suction roll is an important component of paper leading from the flat roll of the wire section to the press section.
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Suction Couch rolls play the most complicated and the most important part in paper machine running, generally speaking, the better and more reliable the suction rolls are,the higher yield and better quality of paper come.Daxing's Suciton Couch roll can disign as customer's need. And provide suitable raw materials and roll design to customer.Daxing will strictly following confirmed drawings and technical specification during manufacturing.Supply socpe: Diameter: φ1500Length: 8000mmWorking speed: above 1000m/min.
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Rubber rolls ( guide roll ,felt roll ,couch roll ,wire roll and so on )Rubber rollsManufacturing StandardShell in seamless steel pipe or rolled and welded steel plateBulkhead in HT250 or QT500-7Journal in 42Crmo or Forged 42CrmoOptionalBearing housing in QT500-7 or ZG35 or Stainless steelGrease or thin oil lubricationRubber cover or Chromed platingSupply limitsMax Diameter: 1000mmMax Face length: 14000mmMax Balancing speed: 2500m/minWith Center dynamic deflection testing
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High speed suction rolls ( suction couch roll ,suction press roll ,suction transfer roll ,suction pick up roll )Shell material SS 304 ,SS316,SS316L or douplex stainless steel Shaft cast steel or QT500-7 suction box SS 304 Gear box bronze Diameter 400-1800mmFace length 2000-12000mm Speed up to 2500mpm Surface coating PU or rubber Bearing SKF ,FAG or base on customer demand .
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Suction box is a component composition of the sution roll (suction couch roll ,suction press roll, suction pick up roll ).The suction box material normally in stainless steel 304 or stainless steel 316 or stainless steel 316 L base on customer demand . We can produce base on customer drawing , we also can supply onsite measure service . We have the CNC machining center ,can process the suction box in high percision .The suction roll Widely used in the tissue paper machine ,kraft machine and all kinds of high speed machine .
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Dryer Vacuum Roll for High Speed Paper Machine Products information The Vac roll in Dryer section normally is a grooved and drilled and used in the individual felt dryer section of high-speed paper machines. Air is sucked in through the holes on the roller shell, creating negative pressure in the grooves. Negative pressure keeps the paper in contact with the fabric, preventing operational issues such as paper shaking. The generated support effect is optimized to be the highest on the curling edge, thereby improving paper edge support and achieving reliable tail threading.
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Product Information: lead out rolls for high speed paper machine Lead Out RollsManufacturing StandardShell in seamless steel pipe or rolled and welded steel plateBulkhead in HT250 or QT500-7Journal in 42Crmo or Forged 42CrmoOptionalBearing housing in QT500-7 or ZG35 or Stainless steelGrease or thin oil lubricationRubber cover or Chromed platingSupply limitsMax Diameter: 1000mmMax Face length: 14000mmMax Balancing speed: 2500m/minWith Center dynamic deflection testingWe can produce lead out rolls , couch roll , suction roll ,tissue paper ma
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Gate roll Roll diameter 500mmFace length:6150mm Roll Shell material: Q235BShaft material : 42crmo Shell thickness:15mmRoll surface with rubber Rubber thickness;5mm Bearing type:22318 /6222 C3 w/ Adapter Sleeve AHX 2318 SKF Bearing housing: cast ironTension 3-5knDynamic balance G2.5 Balance speed:1300mpm Our Packagings：Daxing has wooden packing and steel packing for oversea market.Our Patents:Company Pictures:Exhibition Pictures:
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Type of Bow Roll:Fixed bow heightAdjusted bow heightBow roll with Chrome plated or not Bow roll with Rubber sleeveBow roll with teflonRange of Bow Roll:Dia Range:105mm-420mm;Max Length:10000mmMax working speed: 2600m/minApplication:1: Chromium plated bow roll is the most common and cost-effective type in the market, which improves the surface hardness and corrosion resistance of the roller through chromium plating.2: Spraying tungsten carbide can increase the hardness of the roller surface, enhance corrosion resistance, and is superior to chromium plating.3: Bow roll with rubber slee
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Bow roll for size press part Type of Bow Roll:Fixed bow heightAdjusted bow heightBow roll with Chrome plated or not Bow roll with Rubber sleeveBow roll with teflonRange of Bow Roll:Dia Range:105mm-420mm;Max Length:10000mmMax working speed: 2600m/minApplication:1:Chromium plated bow roll is the most common and cost-effective type in the market, which improves the surface hardness and corrosion resistance of the roller through chromium plating.2: Spraying tungsten carbide can increase the hardness of the roller surface, enhance corrosion resistance, and is superior to chromium pla
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Carbon fiber roll has about ten times strength of iron, while its specific weight is about one-fourth that of iron.Carbon Fiber Roll of Film Production LineDesign according to customer's using;Reliable design and manufacture;Product Information:Carbon Fiber RollManufacturing StandardShell in carbon fiberBulkhead in HT250 or AluminiumJournal in 42Crmo or Forged 42CrmoOptionalBearing housing in QT500-7 or ZG35 or Stainless steelGrease or thin oil lubricationRubber cover or Chromed plating or RCCSupply limitsMax Diameter: 1000mmMax Face l
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Applicator Hard Roll（Size Press Roll)Size press roll that used in the size press section of the paper machine , that have ordinary type size press and transfer fillim size press roll .The size press roll has top roll and bottom roll ,the diameter from 600-1500mm ,and the face length from 2000-8000mm .Shell material :HT250 cast iron , shaft :cast steel , Cover with Pu or rubber .
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Reel spool roll Reel Spool Roll for Paper MachineNormal Manufacturer Standard:Shell material: Q355bJournal material: Forged 42CrMo4Coating: PU or High performance rubberCoupling：Forged 45# steelBearing housing: Forged 45# steel + HT 250Bearing: SKF or other brand; depends on CustomerSupply scope:Maximum Out Diameter: 1500mmMaximum Face length: 11900mmMaximum Balancing Speed: 1800m/min
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Suction Pick-up rollsDaxing's Suciton Pick up roll can disign as customer's need. And provide suitable raw materials and roll design to customer.Daxing will strictly following confirmed drawings and technical specification of the suction pick up roll during manufacturing.Shell material SS 304 ,SS316,SS316L or douplex stainless steel Shaft cast steel or QT500-7 suction box SS 304 Gear box bronze Diameter 400-1200mmFace length 2000-9000mm Speed up to 2000mpm
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Size bow roll for paper machine Type of Bow Roll:Fixed bow heightAdjusted bow heightBow roll with Chrome plated or not Bow roll with Rubber sleeveBow roll with teflonRange of Bow Roll:Dia Range:105mm-420mm;Max Length:10000mmMax working speed: 2600m/minApplication:1:Chromium plated bow roll is the most common and cost-effective type in the market, which improves the surface hardness and corrosion resistance of the roller through chromium plating.2: Spraying tungsten carbide can increase the hardness of the roller surface, enhance corrosion resistance, and is superior to chromium
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Forming roll used in the high speed tissue paper machine forming roll Center distance3500-8500mmWorking face3000-8000mmRoll diameter600-1700mmRubber thickness15-22mmPaper machine working speedaccording to the working speed of paper machineExhibition Pictures:
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Winder roll used in the winder machine , that have front and back roll .
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