S45C Materials Injection Mold Parts Sprue Bush A B C Type For Plastic Injection

Background

The sprue bush is a part that allows plastic material to be injected from the nozzle into the interior of the mold. In order to prevent leakage of plastic material, the feed port is generally designed in an arc shape. The tapy A sprue bushing is fixed to the mold with 2 bolts to prevent it from falling off due to the injection pressure. When the mold is designed with a positioning ring, the B-type sprue bushing is used.

Regarding the material, SKD61 and S45C are commonly used. S45C is a medium carbon steel with excellent wear resistance, but the ductility is reduced, the quenching performance is not good, and the hardness after quenching is HRC42, so it is used to make the sprue bushing of the low-end mold, after the high temperature, its need to spray anti-rust oil or other anti-rust treatment to prevent rust.

The relationship between the size of the sprue bushings and the tonnage of the injection molding machine is as follows. the types of plastics materials being injection molded have a littell impact on them.

click to download price list for spure bushing A&B.pdf

Description of the sprue bushs

1. materials: S45C

2. Head:

• A type, thickness 10mm/15mm/20mm, diameter 30mm / 40 mm / 50 mm
• B type, thickness 20mm, diameter 35*40 mm
• C type, thickness 10mm/15mm/20mm, diameter 35mm / 40 mm / 50 mm

3. Bushing: diameter 10 12 16 20 mm, length 40~200 mm

4. Hardness: HRC 30

5. ODM / OEM: welcome

6. Packaging: packed in a PE bag with anti-rust oil, then loaded into a carton

Size and Price

We have stocks of all the standard sizes and can ship within 48 hours after payment, but due to the dynamic changes of inventory, please confirm with the sales before purchase. For custom sizes, please contact us via Whatsapp +8615915396878 or send a inquiry via email.

How to buy the mold sprue bush

• Contact us to confirm inventory and negotiate the prices
• Pay the full amount or deposit
• Production, quality inspection, transportation, and inform you of all the details

About the payment, T/T, Paypal, and Western Union are available, other methods please contact us in advance.