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Large Thick Vacuum Forming Plastic Medical Appliance Cover Machine Shell

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Large Thick Vacuum Forming Plastic Medical Appliance Cover Machine Shell

Brand Name : OEM
Model Number : OEM
Certification : ISO9001 ,CCC
Place of Origin : China
MOQ : 200 pcs
Price : USD+1.8-25 + pcs
Supply Ability : 1000000+pcs + per Month
Delivery Time : 10-30days
Packaging Details : EPE, polyfoam, carton, or other required packing materials
Item : Large Thick vacuum forming Plastic Medical Appliance Cover Machine Shell
Thickness : 1-12MM
Color : White /Black/Any color
Material : ABS+UV+FR
Band : OEM
Size : OEM
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Large Thick vacuum forming Plastic Medical Appliance Cover Machine Shell

8 key components of the vacuum forming process : clamping, heating, sheet level, pre-stretch, vacuum, plug assist, cooling and release, and finishing and trimming.


Clamping

A clamp frame is used to ensure the plastic sheet is held firmly in place during the vacuum forming process. It is important that the clamp frame is powerful enough to handle the thickest materials expected to be used with the machine: this tends to be up to 6mm when the machine has a single heater, and 10mm with twin heaters.


Heating

Now that the plastic sheet is securely positioned over the opening of the vacuum forming machine it is time to heat it up: this is typically done using radiant heaters.

The heaters are mounted within an aluminium reflector plate and use infra-red elements; they move into position both above and below the sheet when it is time to heat the plastic. There are also a series of zones controlled by energy regulators to ensure that the heat applied to the plastic sheet is uniform, both throughout the depth and over the surface area.

There are a variety of heaters that can be used for different requirements, including single heaters, twin heaters and quartz heaters.


Sheet level

The sheet level stage is one that ensures the sheet isn't sagging down too much into the machine during the vacuum forming process. A built-in photo-electric beam scans between the bottom heater and the sheet of plastic; if the sheet of plastic sags down, therefore breaking the beam, a small amount of air is injected into the bottom chamber to lift the sheet up.


Pre-stretch

When the plastic has reached the correct forming temperature through heating it then needs to be pre-stretched to achieve an even wall thickness when the vacuum is applied. Air is introduced to blow an air 'bubble' of a controlled height into the plastic sheet. The mould is then raised into this pre-stretched sheet ready for the next stage.


Vacuum

Now that the mould has been raised into the sheet a vacuum needs to be applied to assist in forming. A dry vane vacuum pump uses air to suck the sheet into the mould to eliminate any trapped air and ensure the detail of the mould is properly picked up.

With much larger machines a high volume capacity vacuum pump is used alongside a vacuum reservoir to enable faster moulding of the heated sheet before it drops below the correct forming temperature.


Cooling and release

Now that the plastic has been formed it is critical to let it fully cool before being ejected from the mould. If it hasn't cooled fully the moulding could become deformed which would result in a reject part.

Often high speed fans are used to speed up cooling, or a fine mist of chilled water which used with the fans can reduce cooling time by up to 30%. Once the material has fully cooled it can then be released from the mould by using a small amount of reverse air pressure.


Finishing and trimming

Once released the part is transferred to the trimming station for removal of excess material, finishing and any other required post-forming process. These could include drilling holes, slots and cut-outs into the part and any required decoration, printing, reinforcing and part assembly.



Business TypeManufacturer
Process Of KindODM/OEM
Main ProductsThick vacuum forming product, Thermoforming product
Main ProceduresDesigning, Moulding, Silk-screen,Vacuum Forming, 5-axis CNC Cutting, Trimming,Scraping, Polishing, Spary painting, Sonic Welding, Splicing,Packing
Product SizeCustomized
The max product size can be up to 3000*1800*1000mm(L*W*H).
ThicknessThe material thickness can reach 10mm.
MaterialsABS,HIPS,PC,PMMA,PVC,PETG,ABS/PC,ABS/PMMA,ABS/ASA
ColorsAny color as you required
Application FieldPackaging, Vehicles, Agricultural, Auto parts, Healthcare, Toy Accessories, Decorative Field, Catering Household Appliance, Tourism, Printing, Furniture Store and Supermarket Display, Medical Facility and other Machinery Accessories and Components etc.
PackingEPE, polyfoam, carton, or other required packing materials
MOQ500, it's negotiable
Delivery TimeWithin 25 working days after sample confirmed.
Payment TermsT/T,L/C,Western Union,MoneyGram
Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Eastern Asia, Western Europe...
Main CustomersBYD,Coco-cola.Pepsi,NSE,Glen Dimplex,Terraboost,ect..
Industry StandardsISO 9001:2008 Certified, TS16949

Vacuum forming is well suited to large parts with moderate volumes. It offers lower cost tooling and quicker prototyping than other alternatives. Contact us to find out how vacuum forming can be used for your application.


Product Tags:

polystyrene vacuum forming

      

abs thermoforming

      
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