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Synor delivers certified precision molds and injection molding for electronics, automotive, medical, and packaging industries.

Contacts
Location
7 Kangle South Road, Xianxi Industrial Zone, Chang’an, Dongguan 523000,PRC.
Phone
+86 136 3267 7349
+86 183 9015 0633

Design Guidelines: Plastic Injection Molding

Size

Maximum Dimensions

INMM
SIZE18.9 in. x 29.6 in. x 8 in.480mm x 751mm
VOLUME59 cu. in.966,837 cu. mm
DEPTH4 in. from parting line101mm from parting line
Up to 8 in. if parting line can pass through the middle of the partUp to 203.2mm if the parting line can pass through the middle of the part
PROJECTED MOLD AREA175 sq. in.112,903 sq. mm

Typically, Protolabs can maintain a machining tolerance of +/- 0.003 in. (0.08mm) with an included resin tolerance that can be greater than but no less than +/- 0.002 in./in. (0.002mm/mm).

Materials

ABSLDPEPET
ABS/PCLLDPEPETG
AcetalNylon 6PMMA
Acetal CopolymerNylon 5/12Polycarbonate
Acetal HomopolymerPBTPolypropylene
ETPUPC/PBTPPA

VIEW MATERIALS >

Surface Finishes

FINISHDESCRIPTION
PM-F0non-cosmetic, finish to Protolabs’ discretion
PM-F1low-cosmetic, most toolmarks removed
PM-F2non-cosmetic, EDM permissible
SPI-C1600 grit stone, 10-12 Ra
PM-T1SPI-C1 + light bead blast
PM-T2SPI-C1 + medium bead blast
SPI-B1600 grit paper, 2-3 Ra
SPI-A2grade #2 diamond buff, 1-2 Ra

Finishing Options

mold texture with laser

Mold texturing applies industry standard textures to a mold and you can expect the equivalent of a Mold-Tech finish.

Threaded inserts are possible through secondary heat staking and ultrasonic welding processes. A complete chart of stocked inserts is available here.

Pad printing transfers a two-dimensional image like company logos onto a three-dimensional object.

Laser engraving is applied to the mold or directly to final parts for information such as part numbers.

Basic assembly includes fastening molded parts together that we’ve manufactured and/or applying of labels to individually bagged parts.

Draft

VERTICAL FACES0.5°
MOST SITUATIONS
MINIMUM FOR SHUT OFF
MINIMUM FOR LIGHT TEXTURE (PM-T1)
MINIMUM FOR LIGHT TEXTURE (PM-T2)5°+

Undercuts

 

Maximum Side Core Dimensions

WIDTHHEIGHTPULL
IN< 8.419 in.< 2.377 in.< 2.875 in.
MM< 213.84mm< 60.38mm< 73.66mm

Wall Thicknes

MATERIALRECOMMENDED WALL THICKNESS(IN)RECOMMENDED WALL THICKNESS(MM)
ABS0.045 in. – 0.140 in.1.143mm – 3.556mm
Acetal0.030 in. – 0.120 in.0.762mm – 3.048mm
Acrylic0.025 in. – 0.500 in.0.635mm – 12.7mm
Liquid Crystal Polymer0.030 in. – 0.120 in.0.762mm – 3.048mm
Long-Fiber Reinforced Plastics0.075 in. – 1.000 in.1.905mm – 25.4mm
Nylon0.030 in. – 0.115 in.0.762mm – 2.921mm
Polycarbonate0.040 in. – 0.150 in.1.016mm – 3.81mm
Polyester0.025 in. – 0.125 in.0.635mm – 3.175mm
Polyethylene0.030 in. – 0.200 in.0.762mm – 5.08mm
Polyphenylene Sulfide0.020 in. – 0.180 in.0.508mm – 4.572mm
Polypropylene0.035 in. – 0.150 in.0.889mm – 3.81mm
Polystyrene0.035 in. – 0.150 in.0.889mm – 3.81mm
Polyurethane0.080 in. – 0.750 in.2.032mm – 19.05mm

Radii

Some part corners will have a radius rather than a sharp edge since we use an automated CNC milling process to make the mold for your parts. This typically does not require a change to your model, but resulting radii are identified before the mold is milled.