Design Considerations Of Core Insert Mold

The rules of Core Insert Molding are no different from those of standard injection molding. Maintain proper draft angles, keep wall thicknesses consistent, eliminate undercuts, and avoid unnecessary part features and superfine surface finishes whenever possible. This is all good advice, and applies equally to Core Insert Molding

However, that little chunk of metal does present a few additional considerations. As alluded to earlier, Protolabs hand-loads all Core Inserts. This means the operator reaches into the mold to deposit the Core Insert, and since the mold is usually quite warm, gloves must be worn. Core Inserts smaller than 0.125 in. across can be problematic, as are those too big to fit comfortably in one hand. Nor should the Core Insert location be too deep inside the mold—a 2:1 hand clearance-to-insert depth ratio is a good rule of thumb

And be aware that Protolabs may need to orientate the part differently to accommodate placement and retention of the Core Insert. The mold halves slide together horizontally, and if the Core Insert falls out during closure, damage to the mold may occur. Core Inserts should also be consistent in size—we recommend a tolerance of +/- 0.002 in. (0.05mm) on locating surfaces to avoid flashing

Finally, knit lines occur when molten plastic flows around an object and rejoins on the far side, a phenomenon that is quite possible when inserts are present. These lines are usually cosmetic, but can lead to crack formation later on. Glass-filled materials help alleviate this problem, as does beefing up the walls around these areas (within reason). Slightly thicker walls or ribs in the area around the insert are a good idea to support the insert and prevent movement

Specification

Our Services & Advantage:

1. Support customized service, OEM service, small batch purchase, Fast reaction.
2. High quality and guarantee, Using quality environmental protection material.
3. Our product specifications are complete and diverse.
4. Our products are well-known for its fine quality.
5. Customer always first, We pay special attention to product quality and delivery.Fast response within one working day.
6. Meet customer needs, Competitive price with high quality.
7. Professional production team can provide you with logo, color, pattern custom.
8. Can meet the individual needs of customers.products prices are negotiable

RAQ:

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

ABOUT US

Dongguan SENLAN Mold Parts Co., Ltd. was established in 2012 and specializes in precision machining of mold components, particularly for non-standard customization in precision packaging molds. With years of industry experience and technical expertise, we provide efficient and professional mold parts processing services to global clients.

Core Business

We focus on precision machining of multi-cavity mold components, including plastic mold cavities, core pins, inserts, movable core assemblies, and automotive die-casting mold cores and inserts. Our products are primarily used in precision packaging molds for industries such as daily-use packaging, cosmetics packaging, medical consumables and packaging, as well as automotive, electronics, and automation.

Technical Advantages

Advanced Equipment: We are equipped with internationally renowned equipment, including Hardinge CNC lathes, Makino EDM machines, Makino milling centers, Sodick wire-cutting machines, and a series of precision grinders, ensuring high-precision machining.

Strict Quality Control: Equipped with Zeiss coordinate measuring machines (CMM) and other precision inspection tools, we ensure stable performance and superior quality.

High-Quality Materials and Heat Treatment: We use premium materials from leading brands and ensure that each material undergoes heat treatment by its original manufacturer, guaranteeing optimal performance and reliability.

Professional Team: Our management and technical team have over ten years of experience in plastic and die-casting mold production, offering customized solutions to meet client needs.

Customer Service

We adhere to the philosophy of "Quality First, Honest Service," committed to providing high-quality products and excellent service. Whether it's complex multi-cavity mold components or custom parts with special requirements, we deliver precise machining to meet the high standards of precision plastic molds.

Future Vision

SENLAN will continue to focus on technological innovation and quality improvement, working closely with global clients to drive the advancement of the mold industry.