Pressure Forming Process
Pressure forming involves forcing a hot plastic sheet against a mold by introducing compressed air to the sheet's outer side. Europack, the leading pressure forming manufacturer, recommends pressure forming when your custom plastic enclosure requires features that cannot be achieved by vacuum forming alone.
Pressure forming is a process where forming grade plastic is molten into required shape using a combination of pressure & vacuum. Usually, the die used in pressure forming is generally female, this makes it concave. Compressed air is the main force used to push material to the back of the heated sheet so as to enable forming of the plastic into the mold.
Pressure Forming Process
We have dedicated 3 Extrusion, 5 Automatic Vacuum Forming Machines, 2 Automatic Pressure Forming Machines, 2 Automatic Thermo forming Machines, 3 Semi-Automatic Vacuum Forming Machines, specifically to cater to the needs of our large client base which keeps increasing as this is accepted for packaging the world over. We also provide innovative packaging designs to our clients for there domestic & export needs.
Pressure Forming over Injection Moulding
Pressure Forming is a lucrative alternative to injection molding in case of small quantities of products that need to be created. There is a huge difference in the mould cost as there is less work on tooling making it cost effective. All of this is done without compromising on quality one bit, pressure forming is capable of creating the same detail and quality as injection molding.
The cost per piece of a pressure formed article is way lower than that of an injection moulded article. The ability to produce larger quantizes in a given time is higher in pressure forming in comparison to Thermo forming. The use of high amount of air pressure used with pressure forming also makes it possible to achieve undercuts when necessary. It also has a short lead time, still allowing the creation of textured surfaces, products in a wide range of colors.
The end result of pressure forming is an object with the same level of quality as one that has been created through injection molding or structural foam molding, keeping the benefits intact.
Pressure Forming over Vacuum Forming
The basic advantage of pressure forming over other types of forming is its ability to produce sharper edges on forming without thinning the tray. This ensures even distribution of material which keeps the tray in perfect desired shape. Keeping the amount of detail intact replicating the mould design. Therefore, pressure forming is more effective than vacuum forming for projects requiring more attention to detail. This is possible because pressure forming has a capability of creating up to Six times as much pressure as any conventional vacuum forming Pressure forming thus eliminates problems of cold flow, excessive thinning or various other problems associated with vacuum forming.
Pressure Forming over Thermo Forming
The basic advantage of Pressure Forming over Thermo forming is the cost advantage for small production items. The mould cost for thermo forming is considerably higher in comparison to pressure forming thus for a lower quantity precision job the best suitable method used is pressure forming.
Pressure forming is used to create in a wide array of plastic products used for packaging of food trays, blisters, covers, internal parts, housings equipment, bezels, bases, and spare parts for use in business machines, electronics, computers and peripherals, bio-medical applications, and instruments.