The chart below summarizes the characteristics of the standard manufacturing processes to help you choose the right one for your products. We offer most of these processes.
|PROCESS||DIE CASTINGS||PRECISION SAND CASTINGS||RUBBER PLASTER MOLDING||INVESTMENT CASTINGS||PERMANENT MOLDING||GRAPHITE PERMANENT MOLD|
|Weight Range||0-30 lb (0-15kg)||0-45kg||0~ 12 kg||0-20 lb (0-10 kg.)||0 ~ 45 kg.||0 ~5 kg|
|Tolerance||±0.002" (±0.1mm); add ±0.015" across parting lines||±0.5-3.0mm||±0.2~3 mm||±0.003" to 1/4"; 0.004" to 1/2"; ±0.005" to 3"; then add 0.003" per inch||±0.4mm||±0.2mm|
|Flatness||Within 0.2mm (geometry dependent)||Within 0.5mm (geometry dependent)||Within 0.3 mm (geometry dependent)||Within 0.015" (geometry dependent)||Within 0.3mm (geometry dependent)||Within 0.2mm (geometry dependent)|
|Surface Finsh||32-63 RMS||120-175 RMS, except on cored areas||63-125 RMS||63-125 RMS||150-300 RMS||63 RMS or better|
|Minimum Draft Required||1° to 3°||0.5° to 3°||0.5° to 2°||None||2° to 4°||1° to 2°|
|Minimum Wall Section||0.030"-0.060" (0.8-1.5mm)||Typical: 3.5-5mm; Minimum: 2.0mm (geometry dependent)||Typical: 2.5~5mm. Minimum: 1.0mm (geometry dependent)||0.060" (1.5mm)||5mm||2.5mm|
|Typical Tooling Cost (N.R.E.)||$3k-$100k||$800-$4k||$3K - 15K||$3K - 10K||$5K - 15K||$1.5K - 5.5K|
|Nominal Lead Time||Samples: 4-6 wks; Production: 4-6 wks after 1st article approval||Samples:1-4 wks. Production:1-5 wks. after approval.||Samples:2 - 4 wks. Production:1-5 wks. after approval.||Samples:2-4 wks. Production:5-12 wks. after approval.||Samples:8-20 wks. Production:10-12 wks. after approval||Samples:3-6 wks. Production:2-4 wks. after approval. Lifetime use.|
Our quoting turnaround is typically less than a week, and can even be expedited by request!