We are experts of collapsible aluminum tubes line.
Good product, personal service, reasonable price.
we have two production lines: one is slow line which can produce 60 tubes per minute, the other fully automatic medium line with 60 tubes per minute.Our production lines can produce small tubes whose diameters is from 12to 22 millimeter and big tubes with diameter from 22-35mm.The following is a brief introduction about small tubes
Mechanical process The process starts when aluminium slugs, coming from the tumbling department, are loaded into the press feeding device; such slugs are lifted, selected and then automatically transported into the horizontal press, where they are cold extruded.Slugs are pressed between the puncher and the die and pressure is such to generate a plastic deformation of the aluminium. Thus the aluminium goes through the die and the puncher, forming the tubes body.The material speed generates, in one single step, the tubes shape and causes an increase in its temperature up to 200 °C; the semi-finished products which arrives from the press is then transported to the trimming machine by means of an automatic conveyor belt. In this machine the tubes are threaded, headed and cut down to the desired length. At the end of such operations the tubes have reached the final dimension. The tubes shoulders are then polished by means of a rotating brush to make it perfectly smooth and glossy.
Printing processThe first machine involved in the printing process is the base coating machine which applies a layer of base coating on the outside of the tubes.
Tubes are then transported into a flash dryer where the base coating dries up at a temperature ranging from 110 and 140 °C.
The coated and dried tubes then reach the printing machine where inks are applied through an off-set process in order to obtain the desired design.
Finally, tubes go through a dryer, where inks are fixed onto the base coating. Temperatures, in this case, range from 140 to 170 °C.
Internal lacquering machineIf we move on along the production process, we can see that the conveyor belt which moves the semi-finished products out of the trimming machine, lay them on a small accumulator which joins the machines responsible of the aforesaid mechanical process and the next step during which the products annealed to become collapsible at 400 °C; the materials the semi-finished products are made of, after having being extruded and therefore having been affected by the abovementioned plastic deformation, have recrystalized and hardened, and, to make the tubes collapsible again, they shall be exposed to such high temperatures into a oven. Furthermore, heat inside the furnace gets rid of all the lubricating materials residuals, so that tubes are perfectly clean and highly sanitized.
Tubes can now move on to the internal lacquering stage which creates an inner film which allows tubes to be filled in with any kind of materials. The internal lacquer machine applies a coating layer by means of several spraying guns which rotate and slide at the very same time. Tubes are then polymerized at a variable temperature, depending on the kind of lacquer in use, approximately reaching up to 300 °C. The aforesaid operations are extremely important since they affect the tubes resistance to aggressive agents and on its capability to preserve the organoleptic properties of the product inside the tubes.Immediately after tubes are collected into a second device which takes the tubes to the printing machines, working as a sort of accumulator in case of idles phases affecting the production line.
End of the lineThe latex machine applies some latex at the tubes opening, as a second sealing device aimed at increasing the content safety after the tubes have been filled in. The latex is laid on two tubes at the same time by means of two centrifugal units. After the latex has been applied, tubes are transported to the packaging area where they are put into their boxes.
We also do repairing of machines as well as supply spare parts like mandrels rollers pins etc for our customers
Good product, personal service, reasonable price.
we have two production lines: one is slow line which can produce 60 tubes per minute, the other fully automatic medium line with 60 tubes per minute.Our production lines can produce small tubes whose diameters is from 12to 22 millimeter and big tubes with diameter from 22-35mm.The following is a brief introduction about small tubes
Mechanical process The process starts when aluminium slugs, coming from the tumbling department, are loaded into the press feeding device; such slugs are lifted, selected and then automatically transported into the horizontal press, where they are cold extruded.Slugs are pressed between the puncher and the die and pressure is such to generate a plastic deformation of the aluminium. Thus the aluminium goes through the die and the puncher, forming the tubes body.The material speed generates, in one single step, the tubes shape and causes an increase in its temperature up to 200 °C; the semi-finished products which arrives from the press is then transported to the trimming machine by means of an automatic conveyor belt. In this machine the tubes are threaded, headed and cut down to the desired length. At the end of such operations the tubes have reached the final dimension. The tubes shoulders are then polished by means of a rotating brush to make it perfectly smooth and glossy.
Printing processThe first machine involved in the printing process is the base coating machine which applies a layer of base coating on the outside of the tubes.
Tubes are then transported into a flash dryer where the base coating dries up at a temperature ranging from 110 and 140 °C.
The coated and dried tubes then reach the printing machine where inks are applied through an off-set process in order to obtain the desired design.
Finally, tubes go through a dryer, where inks are fixed onto the base coating. Temperatures, in this case, range from 140 to 170 °C.
Internal lacquering machineIf we move on along the production process, we can see that the conveyor belt which moves the semi-finished products out of the trimming machine, lay them on a small accumulator which joins the machines responsible of the aforesaid mechanical process and the next step during which the products annealed to become collapsible at 400 °C; the materials the semi-finished products are made of, after having being extruded and therefore having been affected by the abovementioned plastic deformation, have recrystalized and hardened, and, to make the tubes collapsible again, they shall be exposed to such high temperatures into a oven. Furthermore, heat inside the furnace gets rid of all the lubricating materials residuals, so that tubes are perfectly clean and highly sanitized.
Tubes can now move on to the internal lacquering stage which creates an inner film which allows tubes to be filled in with any kind of materials. The internal lacquer machine applies a coating layer by means of several spraying guns which rotate and slide at the very same time. Tubes are then polymerized at a variable temperature, depending on the kind of lacquer in use, approximately reaching up to 300 °C. The aforesaid operations are extremely important since they affect the tubes resistance to aggressive agents and on its capability to preserve the organoleptic properties of the product inside the tubes.Immediately after tubes are collected into a second device which takes the tubes to the printing machines, working as a sort of accumulator in case of idles phases affecting the production line.
End of the lineThe latex machine applies some latex at the tubes opening, as a second sealing device aimed at increasing the content safety after the tubes have been filled in. The latex is laid on two tubes at the same time by means of two centrifugal units. After the latex has been applied, tubes are transported to the packaging area where they are put into their boxes.
We also do repairing of machines as well as supply spare parts like mandrels rollers pins etc for our customers