Miniflow – GTM – closed gate diameter

• For particularly thin-walled moldings (wall thickness 0.5 to 1.2 mm). This gate insert posses no calotte and is therefore suitable for very thin-walled moldings.
• Attention: The gating point will be flush with, or slightly projecting from, the bottom surface depending on plastic used.

When processing thermoplastic elastomers, please observe the following recommendations to ensure reliable de-molding:

• The distance “L” should decrease with the Shore hardness value.
• The guide length L*0.8 does not apply to TPEs (or TPU, TPA, respectively). In these applications, a centering cone should be provided as shown in our drawing.
• This application instruction applies to elastomers in the medium Shore hardness range (uo to 100 Shore A).

We would like to make it as easy as possible for you to select the right gate size. To help you make your choice we have plotted a number of charts indicating the range of possible gate sizes for a given molding weight and material. Please take into account the viscosity of the plastic before making your selection. Since the plastics industry is marketing an ever growing number of modified plastics in each category, it is impossible to provide binding data here. Please also note our warranty disclaimer.

EXAFLOW Tunnel Gate InsertsCatamold 420W-DIN 1.4028-X20Cr13

Material designation:
BASF Catamold 420W – DIN 1.4028 – X20Cr13.
Hardable stainless steel for production of MIM-Parts.

Applications:
Components with high hardness and wear resistance combined with good corrosion resistance against water and steam; e. g. tools, cutting blades, surgical instruments, nozzles, bearings.

• High wear resistance
• High corrosion resistance
• Good machinability
• Weldable

Composition:
C = 0.35 – 0.50 %
Cr = 12 – 14 %
Fe = Balance

Surface quality, roughness Ra 0.8 – 1.3