Standard B Type SKD61 Material CNC Sprue Bush
Sprue bush is a flow path component that allows molten plastic material to be injected from the nozzle of the injection molding machine into the interior of the mold. The bolt-type nozzle is fixed by two bolts to prevent the nozzle from falling off due to injection pressure.
Common sprue bush models include A type, B type, C type, D type, and E type, with A, B, and C being the most commonly used. Made from SKD61 hot work die steel, these nozzles feature heat-resistant and wear-resistant properties. The feed port is typically designed with an R arc angle to prevent plastic material leakage.
Product Specifications
| Material |
Inner Hardness |
Surface Hardness |
Heat Treatment |
| S45C |
SR HRC50~55 |
Partial |
- |
| SKD11 |
HRC58~62 |
HRC58~62 |
Vacuumed |
| SKD61 |
HRC34~38 |
HV900~1100 |
Nitrided |
| SKD61 |
HRC50~54 |
HRC50~54 |
Vacuumed |
Manufacturing Capabilities
- OD Grinding, ID Grinding
- CNC Milling, CNC Turning
- Wire Cutting, EDM
- Drilling, and more
Quality Assurance
Tolerance: ±0.01mm (customizable based on requirements)
Inspection Equipment
- CMM, 2.5D, Projector
- Calipers, Hardness Tester
- Micrometer, Altimeter
Production Details
Delivery Time: 7-15 days (depending on quantity)
Payment Terms: 50% T/T before production, 50% T/T before shipment
Drawing Format: PDF, DWG, DXF, IGS, STEP
Certificate: ISO9001-2008
Packaging
Inner packing with recycle plastic box and anticorrosive oil, outer with sponge and PE bags, or as per customer requirements.
Applications
Cosmetic packaging, medical devices, daily necessities packaging, automotive components, and more.
Our Advantages
- Competitive pricing with excellent quality
- Low MOQ (10pcs accepted in special conditions)
- Customized sizes and OEM available
- Precise tolerance: ±0.05mm
- 100% inspection
Frequently Asked Questions
Q: Are you a trading company or manufacturer?
A: We are factory.
Q: How can I customize my products?
A: Attach your drawings with details (surface treatment, material, quantity and special requirements).
Q: How long can I get the quotation?
A: We will provide quotation within 48 hours (considering time difference).
Q: How long will you produce the parts?
A: Normally two weeks, production schedule depends on quantity and delivery requirements.
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