Name: Jordan Robertson
Title: General Manager Bus. Devel. and Marketing
Company: StackTeck Systems Limited
Company Profile: StackTeck Systems Limited
Annual turnover: $US 50 millionHeadquarter(s): Toronto, Ontario, Canada Key Operation(s): Canada, Mexico Number of employees: 210Products / Services: Mold Making, Systems IntegrationApplication markets: Packaging, Caps & Closures, High Volume Injection Molds
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TRIMTM (Thin Recess Injection Molding)
Technology Review:
Thin panels cover 50-90% of part area
Ultra-Thin beyond conventional designs
20%-40% weight reduction
Patent pending
First commercial application
Aesthetic effect of 90% coverage
Agenda: TRIM Ultra-Thin Part Design
Lightweighting for thinnest, lightest possible part
“L” is length of flow
“T” is average thickness
“L/T” is abstract measure
PP food tubs typically have:
L/T = 260-300
Thinwall Packaging
Basic Principle
“L”
TRIM - New Thinwall Part Design
Thick
ThickThick
Thick
Thick
Thin
Thin
Thin
Project Details:
Tamper resistant design Nom. thickness – 0.011” to 0.022” Flow length – 5.74” L/T ratio – 520 (thin) & 260 (thick)
390 average Dimensions – 7.0”x5.5”x2.3” Label – Verstraete 70µ EUH
20% weight reduction 50% local thickness reduction (vs. 260 L/T)
TRIM - New Thinwall Part Design
35 MFI Basell Pro▪fax SV954
55 MFI Basell Pro▪fax SG853
105 MFI Basell Pro▪fax SC973
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Inje
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si)
0.2 Sec
0.2 Sec
0.5 Sec
Reference Case – 56 oz. TE Container
Project Details:
Ice cream packaging
Tamper resistant design
Wall thickness – 0.035”
Flow length – 8.0”
L/T ratio - 248
Part weight – 60.6 g
Fill pressure – 23,500 psi
Cycle time – 6.5 seconds
Dimensions – 7.0”x5.5”x4.9”
Label – Verstraete 70µ EUH
TRIM Ratio Weight (g) % Savings
0% 44.1 0.0%
50% 34.8 21.1%
65% 32.6 26.1%
80% 29.8 32.4%
90% 25.9 41.3%
TRIM Ultra-Thin Part Design
Conclusions
Lightweighting 40%+ is feasible vs. conventional
Unprecedented ultra-thin walls for this part size
TRIM candidates….
Thinwall containers & lids
Cost sensitive packaging
High quality decoration (IML or shrink sleeve)
Undecorated parts
Functional features (e.g. tamper evidency)