1～10 item / All 10 items
We can accommodate various internal structures to enhance the cooling effect according to your needs!
The rolls widely used in film and sheet extruders, slitters, stretchers, coater machines, and paper-related machinery are very precise industrial components, despite their simple appearance. At Otec, we utilize our technology backed by years of experience to manufacture and process rolls for various applications and precision levels.
Roll production Embossing roll
The rolls, widely used in film and sheet extruders, slitters, stretchers, coater machines, and paper-related machinery, are very precise industrial components despite their simple appearance. At Otec, we leverage our years of experience to manufacture and process rolls for all applications and precision levels.
![Roll Production Guide Roll [We also propose methods for weight reduction and cost savings!]](https://image.mono.ipros.com/public/product/image/a90/303842022/IPROS97937140141182076221.jpeg?w=280&h=280)
STKM, AL, SUS, a wide variety of guide roll achievements! We will deliver high-quality rolls that meet our customers' needs.
Rolls, widely used in film and sheet extruders, slitters, stretchers, coater machines, and paper-related machinery, are very precise industrial components despite their simple appearance. At Otec, we leverage our years of experience to manufacture and process rolls for all applications and precision levels. 【Facilities】 Chrome plating tank: 1.3m(W)×4.5m(L)×5.8m(H) 1.7m(W)×4.5m(L)×4.7m(H) and others - total of 10 tanks Grinding machines: cylindrical grinding, cylindrical vertical grinding, cylindrical buffing, inner diameter buffing, double-headed buffing, flexible buffing Roll processing equipment: CNC precision lathe, general-purpose lathe machining center, radial drill vertical milling machine, welding equipment dynamic balancing machine *For details on processable sizes, please contact us.
Manufacturing/repair processing of knife rolls for knife coaters used in coating machines, and precision roll manufacturing for cylindrical and vibration μ tables.
The knife roll serves the role of adjusting the amount of coating liquid applied to the substrate in a knife coater, and precision is required at the edge of the blade. There are various types of knife rolls, including the standard type with edge processing done by milling, the adjustment bolt type with a double structure that allows for fine adjustment of edge height using adjustment bolts, and the insert type with a stellite thermal spray applied to the edge. All of these rolls have a very high level of processing difficulty, but Otec has a proven track record in the production and repair of all types of knife rolls. We have numerous achievements in true roundness, cylindrical shape, and runout of less than 3 microns. We also perform repairs on knife rolls with chipped blade coatings. For more details, please contact us. Since the gap between the back roll and the knife roll sets the coating film thickness, high precision in the back roll is also necessary to achieve high-precision coating, including true roundness, cylindrical shape, and runout. Otec also manufactures back rolls in conjunction with knife rolls.
Roll production Polishing roll
Rolls, widely used in film and sheet extruders, slitters, stretchers, coater machines, and paper-related machinery, are very precise industrial components despite their simple appearance. At Otec, we leverage our years of experience to manufacture and process rolls for all applications and precision levels.
It is possible to consistently produce heat transfer circulation rolls, which are essential for film manufacturing and lamination processing lines, from iron core production to surface treatment.
A preheating and cooling roll is a roll that manages the surface temperature by circulating a heat medium such as water or oil inside the roll, serving the purpose of heating or cooling substrates like films and sheets. There are different internal structures, including single-tube type, double-tube type, and triple-tube type. The single-tube type has a hollow interior, and depending on whether the inlet and outlet are the same or different, it uses either a single or double rotary joint. While the single-tube type is cheaper to manufacture due to its simple structure, it has the drawback that as the roll size increases, it requires more heat medium for preheating and cooling, and the heat medium tends to stagnate, leading to uneven surface temperatures. The double-tube and triple-tube types have an internal tube placed inside the outer cylindrical pipe of the roll, allowing the heat medium to flow through the gaps between the pipes. This structure can limit the amount of heat medium to the flow paths, and since the heat medium flows through the gap between the outer and inner tubes, it can efficiently preheat and cool with less variation in surface temperature. If the inlet and outlet are different, it is structured as a double-tube type; if they are the same, it is structured as a triple-tube type.
Roll production - Stretch roll
The rolls used in film and sheet extruders, slitters, stretchers, coater machines, and paper-related machinery are very precise industrial components despite their simple appearance. At Otec, we can manufacture and process rolls for all applications and precision levels, leveraging our technology backed by years of experience.
Roll production suction roll
The rolls widely used in film and sheet extruders, slitters, stretchers, coater machines, and paper-related machinery are very precise industrial components despite their simple appearance. At Otec, we can manufacture and process rolls for all applications and precision levels, leveraging our technology backed by years of experience.
Numerous delivery achievements of converting machine rolls! Contributing to high-precision coating.
The coater roll is a roll that plays the role of applying coating liquid to the substrate in reverse coaters such as coating rolls, application rolls, and metering rolls. The thickness of the coating film is adjusted by the rotation speed of the roll and the gap between the rolls, and high precision is required for the roundness, cylindrical shape, and runout during rotation to achieve a thin and uniform coating. Despite their simple appearance, rolls are highly precise industrial components. As the required precision for rolls becomes more advanced, the processing becomes more difficult, and you may have experienced cases where the delivered rolls did not meet the required precision. At Otec, we can manufacture and process high-precision rolls with roundness, cylindrical shape, and runout of less than 3 microns, thanks to our many years of experience. We can also reproduce the ideal surface roughness according to customer requests. We provide inspection reports (runout charts, roughness data) and conduct on-site inspections. Additionally, we can also perform polishing with bearings installed upon request. Please contact us for more details.
Roll production - Rolling rolls
The rolls used in film and sheet extruders, slitters, stretchers, coater machines, and paper-related machinery are very precise industrial components, despite their simple appearance. At Otec, we leverage our years of experience and technology to manufacture and process rolls for all applications and precision levels.
