Plastic processing technologies comparison

Manufacturing Process

tooling cost

piece prices

piece sizes

labor cost

lead times

production rate

cycle times

Thermoforming

Snap-back Forming
Drape Forming
Pressure Forming
Twin-sheet Thermoforming
Vacuum Forming

lowvary depending on machineryextremely largehigh

6-8 weeks

high

from 1 min

Extrusion
Profile Extrusion
Blown Film Extrusion
Foam Extrusion
Sheet Extrusion
Pultrusion
lowmediummediumMedium3-5 weekshighn/a
Blow Molding BM
Injection Blow Molding IBM
Stretch Blow Molding SBM
Extrusion Blow Molding EBM
Injection Stretch Blow Molding ISBM
moderately expensivehigher than injection molded parts, but lower than rotationally moldedmoderatelow4-8 weekslow3-10 min
Injection Molding IMGas Assist GAIM
Reaction RIM
Liquid LIM
2-Shot TSIM
generally the highestlowest availablevery largelow8 – 12 weeksHigh10 to 100 seconds
Transfer Molding TM
Resin RTM
Vacuum Assisted VARTM
Low Pressure LPRTM
lowlowshortrapid 40-45 min
Insert Molding IM
Multiple Insert Tooling
Film insert molding FIM
highlow2 to 6 weekshigh10 to 100 seconds
Rotational Molding RMVery lowhighsmall to largelow3-5 weeksmoderate

40-45 min

Compression Molding CMmoderatemoderatelargelow2 to 6 weeksmediumRelatively slow
Dip moldingfairly lowfairly high3-7 weeks40-45 minutes
Structural Foam Moldingmoderatemoderatelarge partsmoderate to high
Large Part Structural Foam Moldingfairlytypically lowlarge parts
Urethane Foamlowgenerally high

short

long

Plastic Lumberlowlow
Cast Filmhigh
Cold pressure moldingrapid
EPS (Expanded Polystyrene)fairly highlow