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Spure Bush In Plastic Mould

Express By:
DHL, OCS, FEDEX, UPS, EMS and other special epxress lines
Port:
Guangzhou, Foshan, Shenzhen, Hongkong
Material
SKD61, SKD11, DC53, SKH-9, F1, SKH51, SKD61, 1.2844, and so on
Material:
Stainless Steel and Brass, Copper, Carbide, Hard Ally, Mold Steel, Tool Steel
Certificate:
ISO9001:2008
Drawing:
PDF, DXF, Step, CAD, 3D, and so on
Brand:
HG
Type:
CNC Machining, EDM, Grinding, Wire Cutting, Jig Grinding, Profile Grinding
Capacity:
5000 per month
Price
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The sprue bushing of plastic injection mold


In plastic injection molding, The sprue bushing is a metal part that links the mold with the injection machine.

The sprue can also be described as a part of the runner, which allows the molten plastic material to be injected into the mold through the nozzle of an injection machine.Bolt-type sprue bush is a sprue that is fixed with two bolts, which helps prevent the sprue from disconnection caused by high injection pressure.

Sprue Types: Type A/B/C/D/E, etc. and the three commonly used ones are type A/B/C. We also make special sprue bush per customer drawing/sample.

A sprue made of hot working die steel SKD61 features the properties of heat/wear resistance.

To prevent leakage of plastic materials, the feed throat is usually designed into a chamfer R. The SR (spherical radius) of the mold sprue should be 1 – 2mm larger than the sr of the injection nozzle.

The sprue hole diameter (D) should be 0.5mm larger than the diameter (d) of the injection machine nozzle.
Three measures to shorten the main sprue:
1.       The sprue of a 2-plate mold has to be submerged in the A plate (unless otherwise required by the client);
2.       The main sprue of a 3-plate mold has to be longer than 25 (including 25). Large sprues must be used.
3.       Employ a hot sprue(hot runner) to manufacture products that have high requirements on appearance or other special requirements.

Suggested the hole diameter of sprue:

Molding Machine Size(TON

60

130

130

350&450

550 or more

ABS HI-PS POM PE PP PA

2.5

3

3.5

4.5

5.5

 

PC PPS PPE

3

3.5

4

5

6

Spure Bush In Plastic Mould-HG Precision

Spure Bush In Plastic Mould-HG Precision

Spure Bush In Plastic Mould-HG Precision

Spure Bush In Plastic Mould-HG Precision


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ivy@hg-jingmi.com
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