Borke Mold Specialists, Inc. is your source for the bestPressure, Vacuum, Thermoforming
and Rotational Molds
Services & CapabilitiesVacuum & Pressure
Forming Molds
Custom CNC or Cast Molds for PlasticsCustom CNC Machining of
Patterns & Fixtures
Custom Dies, Pressure Boxes & Plugs
View Examples Of Our WorkVacuum Form Mold for Car Front BumperMold Manufacturing of In-Line Vacuum Mold, Die, Box for Lids & TubsVacuum Form Mold & Fixtures for Acrylic/ABS CoversPressure Form Mold for Refrigerator Liners
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Mold Manufacturing of In-Line Vacuum Mold, Die, Box for Lids & Tubs

  Base MoldCNC Base Mold
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CNC Base Mold
  Push StackerPush Stackers
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Push Stackers
  Pressure BoxSandblast Finish for TPO Material
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Syntactic Plugs for Lid and Adjustable Pressure Box
 

When an American client commissioned Borke Mold Specialists to construct a thin food lid and tub tray for the food packaging industry, we took a look at the customer print supplied, as well as our own 2D CAD designs, and got going on the job.

Using MasterCam to design our CNC machining, we employed a FADAL 60/30 machine and Eldorado M-75 gun drilling machine to initiate the manufacturing process. After testing a prototype REN pattern before starting, we were ready by means of vacuum forming to produce the actual aluminum mold with lid and tub dimensions of 28" in length and 30" in width, sporting a total 16 cavities. The final plastic component itself came out to have a material thickness of .02", a length of 6", a width of 5.4", and a height of 2.0" with tightest tolerances of ±.005"and .0055" in shrinkage allowance.

We turned out the project in 5 weeks. It had 2 vacuum form molds, cnc syntactic foam plug assist with an aluminum pressure box, 2 stainless steel striker plates, master gundrilled water plate, aluminum part stacker, part pusher, and 2 sets of Steel rule dies. The mold was produced to make parts every 3-5 seconds with 100,000 plus cycle runs each time. For more information about Borke Mold Specialists and our projects, please consult the chart below, or contact us today.

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Mold Manufacturing of Lid & Tub Tray Project Highlights

Product Description We manufactured this in-line vacuum mold to produce thin gage lids and tubs for the food packaging industries.
Capabilities Applied/Processes Engineering & Design
  • Design Vacuum Forming Mold in MasterCam v9.1 and CNC machining programs done in MasterCam.
CNC Machining
  • All machining was done in a FADAL 60/30
Gun Drilling
  • Drill Water Plates on our own machine
Vacuum Forming
  • We tested a prototype REN pattern before starting
  • Production aluminum mold
In-Line Trimming
  • Utilizing Steel Rule Dies
Equipment Used to Manufacture Lid & Tub Mold FADAL VMC 60/30
Eldorado M-75 Gun Drilling Machine
Overall Lid & Tub Mold Dimensions Final Plastic Component:
Material Thickness: .02"
Length: 6"
Width: 5.4"
Height: 2.0"

Mold: Lid and Tub
Length: 28"
Width: 30"
16 Cavities
Tightest Tolerances ±.005"
.0055 in/in Shrinkage Allowance
Temperature Range 150° Operating Temperature on Mold
Materials Used Component: PET
Mold:
Aluminum
Delrin
Stainless Steel
Syntactic Foam
Wood
Surface Finish (Mold) Glass Bead vapor blast surface
Components Used Aluminum Mold
Water Plates
Adjustable Aluminum Pressure Box
Syntactic Foam/Wood Plug Assist
Aluminum/Delrin Pusher
Aluminum Stacker w/ Flipper Catches
Steel Rule Die for Lid and Tub
Stainless Steel and Aluminum Striker Plates
Features Mold to Produce 100,000 Plus Parts
Colors Tub: White

Lid: Green
In process testing/inspection performed Calipers
Estimated Part Weight 200 lbs.
Industry for Use Food Packaging
Turn Around Time 5 Weeks
Delivery Location United States
Standards Met Customer supplied print, 2D CAD Drawing
Product Name Food Lid and Tub Tray
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