Pc (Polycarbonate) |
General Moulding Notes |
- Pc requires a cool gate area - excessive gate heating may cause stringing and part surface distortion.
- Medium-to-large gate diameters are generally suitable.
- Gate vestige is usually neat, typical height 1/3 - 1/2 of gate diameter.
- Filled polymers may require special wear resistant tips - check with factory.
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Step 2: Click on the code for the tip style that you wish to use. |
Code |
Tip Style |
Suitability |
Comments |
Sprue Tips For Gating On Runners |
SS |
Short Sprue |
Good |
|
XS |
Extended Sprue |
Good |
|
NS |
Nylon Sprue |
Good |
May suffer from stringing. Increased pressure drop. |
NX |
Nylon extended sprue |
Fair |
As above. |
Pin Gate Tips For Gating On Parts |
PP |
Pinpoint |
Fair |
Gives minimal gate pip, no witness ring, may leave flow lines on part. |
PX |
Pinpoint Extended |
No |
Gateway freezes-off. |
PT |
Pinpoint thru' flow |
Good |
No witness ring or flow lines, but gate pip height may increase. |
EXT |
Extended Hot Pinpoint |
Poor |
Gate gives minimal pip, no witness ring, high pressure drop. |
RG |
Ring Gate |
Fair |
Leaves witness ring and may leave flow lines on part. |
RT |
Ring Gate thru' flow |
Good |
As above, but no flow lines. Gate pip height may increase. |
CG |
Collar Gate |
Good |
Gives minimal gate pip, no witness ring, but may leave flow lines on part. |
CT |
Collar gate thru' flow |
Good |
As above, but no flow lines. Gate pip height may increase. |
Valve Gate Tips For Gating On Parts |
VP |
Valve pinpoint gate |
Good |
No witness ring on part. |
VR |
Valve ring gate |
Good |
Leaves witness ring on part. |
VC |
Valve collar gate |
Good |
No witness ring on part. |
Special Gate Tips For Gating On Parts |
MT |
Multi-Tip |
No |
Not Recommended |
TG |
Tunnel Gate |
No |
Not Recommended |
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Step 3: Choose Your Bush Size |
Maximum shot weight per bush (Grams) |
- Find the bush size that most closely matches your required shot weight with your choice of tip and click on the shot weight to be taken to the technical data for that range.
- If approaching the maximum for a particular bush size, consider using the next larger size, especially if a long bush is required.
- Polymer grade, viscosity, fillers and part dimensions also affect the choice of bush. If in doubt - ask.
- O = This tip / bushing combination is not currently available.
- X = This selection is not recommended.
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|
Code |
Pin Gate Tips |
Micro |
DG |
PLV187 |
PLV250 |
PLV375 |
PLV625 |
PP |
Pinpoint |
15 |
30 |
O |
O |
O |
O |
PX |
Pinpoint Extended |
X |
X |
O |
O |
O |
O |
PT |
Pinpoint Thru' Flow |
O |
30 |
O |
O |
O |
O |
EXT |
Extended Hot Pinpoint |
5 |
O |
O |
O |
O |
O |
RG |
Ring Gate |
O |
O |
15 |
100 |
500 |
1000 |
RT |
Ring Gate Thru' Flow |
O |
O |
O |
100 |
500 |
1000 |
CG |
Collar Gate |
O |
O |
X |
100 |
500 |
1000 |
CT |
Collar Gate Thru' Flow |
O |
O |
O |
100 |
500 |
1000 |
|
Code |
Valve Gate Tips |
Micro |
DVG |
LVG187 |
LVG250 |
LVG375 |
LVG625 |
VP |
Valve Gate Pinpoint |
O |
30 |
O |
O |
250 |
500 |
VR |
Valve Ring Gate |
O |
O |
O |
O |
O |
O |
VC |
Valve Collar Gate |
O |
O |
O |
O |
O |
O |
|
Code |
Multi-Tips |
|
MT32D |
MT45D |
|
|
|
MT |
Multi-tip Pinpoint |
|
X |
X |
|
|
|
|
Code |
Tunnel Gate Tips |
|
DT18 |
DT25 |
DT32A |
DT32C |
|
TG |
Tunnel Gate thru' flow |
|
X |
X |
O |
O |
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