Pressure forming involves forcing a hot plastic sheet against a mold by introducing compressed air to the sheet's outer side. USK Balaji, 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.
We have dedicated 3 Extrusion Machines , 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 their domestic & export needsPressure 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 quantities in a given time is higher in pressure forming in comparison to Injection moulding. 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.
Vacuum forming is a process of converting Plastic film into articles of different shapes as per the mould construction with the process of only vacuum. In this process any plastic film ie. ( PVC, PET, HIPS, HIPGP) is heated to the desired temperature and the material is converted into a semi molten form which then automatically moves to the next station through the chain block Where it is clamped with the mould & the material takes the shape of the mould with help of vacuum & chilling process. In the next station these formed articles are then cut in a rule die into the desired shape scrapping off the excess.
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.
USK Balaji Plast PVT LTD is India’s leading Thermoforming packaging manufacturer Company, serving customers worldwide. Usk balaji Plast PVT LTD develops and manufactures a wide range of medical packaging and thermoformed products. We always work closely with our customers, supporting them with our wealth of experience.
Thermoforming can be used to produce attractive box inserts and interiors. The insert can be tailored to the shape of the product to be packed. This ensures a perfect presentation and protection of the product.
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.
The process of pressure forming with in-mould cutting is called thermoforming. It’s the same process but as it has in-mould cutting the output increases. It also ensures shrinkages are controlled in material with low memory. Cutting of such material when warm is easier & precise in comparison to cutting at next station as in pressure forming.Apart from the high mould cost & requirement of huge production quantities thermoforming is a better & advanced process in comparison to 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.