Surface Coated Round Core Insert Mold Parts for Flipable Bottle Cap Plastic Tooling
Design Considerations Of Core Insert Mold
The rules of Core Insert Molding follow the same principles as standard injection molding. Maintain proper draft angles, ensure consistent wall thicknesses, eliminate undercuts, and avoid unnecessary part features and superfine surface finishes whenever possible.
However, the core insert presents several additional considerations. Since all core inserts are hand-loaded, operators must reach into the warm mold while wearing gloves. Core inserts smaller than 0.125 inches across can be problematic, as can those too large to fit comfortably in one hand. The core insert location should not be too deep inside the mold—a 2:1 hand clearance-to-insert depth ratio is recommended.
Part orientation may need adjustment to accommodate core insert placement and retention. Since mold halves slide together horizontally, core inserts that fall out during closure can damage the mold. Core inserts should maintain consistent size with a tolerance of ±0.002 inches (0.05mm) on locating surfaces to prevent flashing.
Knit lines may form when molten plastic flows around an object and rejoins on the far side, which is possible when inserts are present. While typically cosmetic, these lines can lead to crack formation. Glass-filled materials help alleviate this issue, as do slightly thicker walls or ribs around the insert area to support the insert and prevent movement.
Specification
| Name |
High precision mold core insert / core and cavity inserts |
| Product Material |
SKD61, S136, 1.2312, Tungsten steel, etc. Or as customer's requests |
| Processing Methods |
CNC milling and turning, Grinding, Spark Discharging etc |
| Processing Equipment |
CNC machine, Automatic lathe machine, EDM machine, Stamping lathes, Wire-cutting machine, Milling/Grinding machine, Punching/Drilling machine etc |
| Detection Equipment |
Projector, Caliper, Height Gauge, Screw Gauge, Hardness Gauge etc |
| Surface Treatment |
Coating, Grinding, Polishing or according to customer's requests |
| Design Software |
UG, PROE, CAD, X_P etc. |
| Specification |
15 years machining parts processing experience, Precision tolerance less than 0.002mm, Depends on customer's requirements |
| Delivery |
Normally shipping in 7-15 days after payment, or according to customer's requests |
| Payment Terms |
T/T, L/C, Paypal, Western Union |
| Package |
Custom CNC precision machining mould parts, CNC spare parts. Inner packing with recycle plastic box and anticorrosive oil, outer with sponge and PE bags, or as customer's requirements |
Our Services & Advantages
- Support customized service, OEM service, small batch purchase, Fast reaction
- High quality and guarantee, Using quality environmental protection material
- Our product specifications are complete and diverse
- Our products are well-known for their fine quality
- Customer always first, We pay special attention to product quality and delivery. Fast response within one working day
- Meet customer needs, Competitive price with high quality
- Professional production team can provide you with logo, color, pattern custom
- Can meet the individual needs of customers. Product prices are negotiable
Order Flow Chart
| SN |
Business Process |
Content |
Time |
| 1 |
Receive inquiries |
Confirm customer needs |
1 Day |
| 2 |
Process an order |
Confirm customer order details |
- |
| 3 |
Put into production |
Order of raw materials/Arrange the arrangement of process department |
1-3 Days |
| 4 |
Quality inspection and control |
All products three-coordinate machine and manual testing, and attached with the test report |
10-30 Days |
| 5 |
Product packaging |
Shipping department product packaging, according to customer requirements |
1-3 Days |
| 6 |
Product outbound |
Shenzhen Port |
1-3 Days |
| 7 |
Product acceptance |
- |
- |
Frequently Asked Questions
Q1: Are You Trader Or Manufacturer?
A: We are based in Dongguan City, China, start from 2006, with more than 80 personnel here
Q2: How Can We Guarantee Quality?
A: We are paying high attention to the quality before delivery, it will be tested three times through the strict quality inspection system
Q3: What Can You Buy From Us?
A: Plastic Injection Mold, CNC Parts, Plastic Products, OEM, ODM, Non Standard Mold Parts are available here
Q4: Why Should You Buy From Us?
A: 70 sets processing machine and 60 sets testing machining with strict quality inspection system, which over 15 years experience OEM manufacturing
Q5: What Services Can We Provide?
A: Accepted Delivery Terms: FOB, CIF, EXW, Express Delivery;
Accepted Payment Currency: USD, EUR, JPY, AUD, HKD, CNY;
Accepted Payment Type: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash;
Language Spoken: English, Chinese, Japanese
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