BW Papersystems Corrugator Tungsten Carbide Corrugating Rolls
2800mm Width E Flute
Do your corrugated cardboard production have these problems??
• The designed parameter of flute is not in line with the
manufacturing parameters, and the smooth finish of the roll surface
is inadequate,causing a high tension of corrugating roll during the
running process,that made a poor meshing and resulting in fluting
paper broken.
• The uneven of raw material of corrugating roll leads to the uneven
of inner heat transfer, of expansion while working, and
distortion.This will cause poor formation of fluting paper which
resulting in collapsed flute.
• The insufficient precision of corrugating roll and unstable
materials lead to the flute teeth deforming during the running
process, which can cause bad meshing and unstable operation,and
resonance will be occurred while critical value being reached.This
is how high-low flute being caused in corrugated board.
• If the camber of corrugating roll is designed irrational, it will
cause uneven local pressure, which leads to a series of problems
such as poor lamination, inner liner frothing, heavy scoring on
inner liner, corrugating paper rippling etc.
Our technology can solve all these problems!!
⇒ Yonghui,in accordance with the different customer needs and
on-site situation, has developed special flute type,which circle
parabola is adopted for the medium-high outline,solving the
problems like collapsed flute,poor lamination,inner liner
frothing,heavy scoring on inner liner from the very beginning.
⇒With scrupulous attitude, yonghui adopted multi-directional
detection to enable the parameter of the produced corrugating roll
perfectly match that of the designed one. In this way, to keep a
smooth and stable operation. The unique tungsten carbide techniques
largely improves the abrasive resistance and extend the service of
life of corrugating roll. The special polishing method enables the
surface finish reach Ra＜0.3μm, successfully solving the problem of
broken fluting paper owing by its technical defects.
⇒Zhongyuan Special SteelD50CrMo is used as the material to
producing corrugating roll.It is the premium alloy precision
forging steel featuring stable property and even heat transfer.
⇒A complex tempering process is conducted for the material to
further enhance the stability. Adopting vertical intermediate
frequency quenching technology to change the organization
structure, strengthen the hardness, and maximize the capability of
anti-thermal deformation.
⇒The unique way of ultra-high pre-expansion is adopted to deal with
the high temperature and pressure inside the corrugating roll,and
improve the capacity of anti-fatigue strength and elastic
strength,enabling corrugating roll to avoid deformation and uneven
expansion during the following use.It has perfectly solved the
problem like resonance(the main reason why collapsed flute and
high-low flutes happened),which caused by deformation,unstable
texture,uneven expansion during running process.
Flute profile
The most important parameter is the flute profile. To design the
flute profile, we must know the corrugated paper gsm, speed, flute
height, correct diameter and other requirement such as good FCT,
saving paper, etc. Our engineer has rich experience of designing
flute profile. Without good design, many problems will appear, such
as flute paper broken, low speed, collapsed flute, high-low flute
and so on.
The following table is just for a reference.
| Flute | Profile | Height(mm) | Pitch(mm) | Flutes/300mm | T.U.R |
| A | UV | 4.5-5.0 | 8.0-9.5 | 34±3 | 1.45-1.52 |
| C | UV | 3.5-4.0 | 6.8-7.9 | 41±3 | 1.37-1.47 |
| B | UV | 2.5-3.0 | 5.5-6.5 | 50±4 | 1.33-1.41 |
| E | UV | 1.1-2.0 | 3.0-3.5 | 93±6 | 1.24-1.36 |
| F | UV | 0.8-1.0 | 2.2-3.2 | 115±20 | 1.19-1.25 |
| G | UV | 0.6-0.8 | 1.8-2.8 | 136±20 | 1.15-1.20 |
| N | UV | 0.4-0.6 | 1.2-2.2 | 193±55 | 1.10-1.15 |
| Others | UV | Customized | Design | Design | Design |
The same meter of single corrugated board can be saved up to 5‰.
The volume of glue can be saved up to 5‰ thanks to a better
lamination between fluting paper and linerboard.
The shortest quality guarantee of running length can reach
3500mym,with tungsten carbide corrugating roll produced by Meijia.
Multiple repair is available,and the initial designing parameter
can be attained after repair. The shortest quality guarantee of
running length can reach 3500 mym above.
Contact me:
Bonnie Li
Mobile&whatsapp&Wechat: +86-18661680180
