Hard Chrome Pressure Roll for K&H Corrugated Cardboard Making
Machine SF-300Q
| Product name | Pressure roll |
| Application | Single facer, corrugator machine |
| Raw material | 45# Steel |
| Heating treatment | Intermediate frequency quenching |
| Hardness | ≥HRC 55 |
| Harden Layer | ≥7mm |
| Coating | Hard chrome 0.05-0.08mm |
| Diameter | 50-500mm |
| The roller surface length | 100-4000mm |
| Cylinder run-out accuracy | ≤0.02mm |
| Cylindricity accuracy | ≤0.015mm |
| Dynamic balancing accuracy grade G2.5 | G2.5 |
Precision Welding Can Be Inseparable
Both ends of the roller body should be heated to release the size
of the inner bored hole. After the spindle heads are put in, the
roller body and the spindle heads should be held tightly after
natural cooling. When everything is ready, a driving fit interface
has been formed between the roller body and the spindle heads by
means of preheating, welding or bolting. Special care should be
taken when welding, because finished pressure roller body’s
temperature will rise constantly when the roller is running, and
the roller body also bears pressure of the steam from the inside of
the roller body, which will form the so-called “pressure vessel”.
In view of this, the roller body and the spindle heads joint must
pass the pressure test. When the welding process finished, the work
piece shall be put into the furnace for high temperature tempering
to reduce stress.
High Hardness from Vertical Quenching Process
Intermediate frequency quenching can guarantee both the hardness
and harden depth we need. Our harden layer depth can reach to
8-10mm. With harder base material as foundation, the lifetime of
our pressure rolls are greatly extended.
Intermediate frequency quenching machine.
High precison grinding machine.
Package
About us
Qingdao Meijia Corrugated Roller Co.,Ltd., founded on May7, 2010,
is a professional manufacturer specialized in corrugated roller
design, producing and renovation, which is one of the rare
professional manufacturer in China with whole-process capacity for
corrugated roller. Meijia company with registered capital of 36
million RMB, is located in Jiaozhou, Qingdao City, Shandong
Province, China (mainland), covering over 30,000 square meter, and
has first phase of 15000 square meter. All equipment of our
industry adopts high standard configuration, and the overall scale
ranks at the top among domestic similar enterprises. Meijia company
has been established in the North of China, with “Fulfill you and
me to create win-win situation” business philosophy, high and
strict standards, providing customers with excellent quality and
services. With mature and stable processing technology, a group of
featured, efficient, scrupulous stuff, to ensure that every design
and production to maximize the profit of our customers and create
new competitive advantage.
Main products:Tungsten Carbide corrugating rolls, hard chrome
corrugating rolls, pressure roller, glue roll and doctor rolls. The
products are mainly sold in China, India, South Korea, Russia
,Thailand, Myanmar, Iran, Egypt and other countries.Therefore, our
products are widely recognized by the global customers, which make
us gaining sound reputation all over the world.
