ROLL SERVICE
Roll handling capacity: Diameter 2 m, Total length 13 m, weight 80 tons
roll cover product
Rubber
press roll
Size roll
Guide roll
reel & winder roll
PU
Press roll
Film Size roll
Drive roll
reel spool
Composite
Calender roll
SC roll
Guide roll
New generation Polyurethane (PU) roll cover
The faster machine need more efficient dewatering from press section.The PU cover with more open area is suitable for this task.The grooved and blind drilled PU cover has a lot of water splashing out from the nip.Greatly improve the dewatering in the nip and reduce requirement of felt dewatering.The open area is up to 48% if for suction press roll
Nano Technology Resin Cover for Calender Roll
All the material imported from Europe or USA. Advanced state of art for manufacturing.Specially for high loading calender roll cover.Resin is mixed with nano mineral fillers and reinforced by aramid fiber.
Normal mineral filler
The surface is more fine and smooth, the material has higher toughness
High elastic modulus, able to quickly rebound after compression deformation
High safety in use, due to the reinforcing effect of aramid fibers, high mechanical strength， not prone to cracking
Nano filler
Higher paper smoothness
Life time is long and stable, and the amount per grinding is very small
not easy to encounter unexpected situations such as roller surface cracking during machine running
Press Roll Cover
Roll Cover for Wet-End and Finishing
Thermal Spray coating
HVOF thermal spray coating
RollCera – Ceramic Coating for Center Press Roll
Plasma thermal spray coating technology
- Power from Europe and USA
- Equipment from Germany
- Advanced grinding and polishing tech
- Super anti-wearing, longest grinding interval, less roll changing
- Resistance to vibration, Excellent anti ridging performance!
- Easy doctoring and longer blade life time
- Excellent sheet release, suite to high speed and low basic weight machine
RollCera – Ceramic Coating for PondSizer Hard Roll
Application Position: Hard roll for Pond Sizer
- Ceramic coating have excellent wear resistance, greatly superior to rubber
- Excellent resistance to chemical attack
- The service life is much longer than hard rubber, reducing roll changing
Metal Coating for Forming Roll
High hardness metal coatings can improve the wear resistance of roll
- Spraying metal coating can replace or improve PE heat shrink sleeves or the service life time of the metal wire
- Application position: Forming roll (drilling or honeycomb structure)
Coating for Vacuum Roll
Application location: Vacuum press roll/ Couch roll/ Transfer suction roll
- By coating with high wear resistance, the service life of the roll shell is greatly improved
- Excellent wear and corrosion resistance
RollGloss-HVOF thermal spray coating for calender roll
HVOF high-speed flame spraying
Metal powder from USA
Europe spraying equipment
special grinding &Polishing process：
honing equipment
Polishing
Thus achieving a mirror like roller surface RA<0.04 um
Benefit of Thermal spray coating for calender roll:
Harder and wearing resistance. The coating layer hardness up to 1300 HV
Longer grinding interval
Smoother surface of roll gives better paper smoothness and gloss.
Easy doctoring, no streaks, life of blade longer
Prolong the life time of chilled iron calender roll
RollFric – Winder and reel drum coating
Onsite service
Onsite sand blasting
Onsite HVOF coating
Spraying of sealing agent
controlled roughness （RA 4-8 um)
Application Position: Reel Drum/ Winder Drum
- Design roughness based on paper grade to prevent slipping
- High wear resistance
- Corrosion resistance
- Roughness can be maintained at a stable level for a long time
RollTeflon – Teflon Coating
Application location: Drying cylinder/ Guide roll/ stabilizing cylinder
- Teflon coating can reduce surface tension and reduce adhesive
- The force of paper web peeling from the cylinder surface will also decrease, reducing paper breaks
- Even if there is dirt, it is easy to clean