N N Engineering is leading core pin manufacturers and suppliers in Pune. Being manufacturers and suppliers of our core product core pins, we know how critical they are with regard to the formation of internal features and voids in the injection-molded parts. We are proud of making such pins to the best quality, which makes them very durable, also dimensionally correct and able to endure the stress of constant production. Our commitment to quality and our capability to offer tailored solutions have made us a reputable brand in the sector and assist our clients deliver better outcomes and performance.
Core pin is a highly accurate instrument in injection tooling and die casting to produce internal structures such as holes and cavities in a finished product. It is molded with a hardened tool steel and inserted in the mold which is then filled with a molten material. The pins are solidified around the material and when the component is ejected out of the part, the core pin is eliminated and the exact internal shape remains. It is designed to resist hot and pressurized conditions, giving it high accuracy and durability in mass production.
Types of Core Pin
As notable core pin manufacturers in Pune, we produce core pin in a wide range of types, each one of them assures you the perfect solution for every mould requirement-
- 50mm Core Pin: A core pin is a standard length 50mm pin designed and engineered to a high level of precision. It is principally applied to cut holes, cavities or definite profiles on moulded parts. These are durable, dimensionally precise, pins commonly used in plastic injection moulding where depth and accuracy are needed consistently.
- 12mm Core Pin: The 12mm core pin has a diameter of 12mm which is also applicable in moulds with medium cavity or hole size. These pins are manufactured using quality steel and are also found to have good wear properties and tolerances remain close with repeated filling mould operations.
- Profile Core Pins: Profile core pins are specially designed pin made on custom shapes or profiles. In contrast to regular round pins, they have flat, angular, or other complex geometries to suit the design. These pins play a critical role in making components that have complex slots, grooves or irregular holes.
- Hot Die Steel Round Core Pins: Core pins are made of hot die steel, which is a high strength and heat resistance material. They are spherical in form and are suited to high temperature moulding processes where durability and thermal stability are of paramount importance. Their strong structure makes them to have long service life even when they are subjected to repeated production cycles.
- Core Ejector Pin: A core ejector pin is a two-purpose pin used as a core pin (to form holes or cavities) and as an ejector pin (to blast the part out of the mould). This design saves the separate pins so the mould is easier and more effective. It is also particularly applicable in making parts of which the hole feature is required to be shaped and then ejected into a smooth shape.
Technical Specifications of Core Pin
We have added below a technical sheet of core pin in Pune that provides more technical information such as:
| Specification |
Details |
| Material |
High-Speed Steel (HSS), H13 Tool Steel, Stainless Steel, Alloy Steel |
| Hardness |
48–52 HRC (standard), customizable as per application |
| Surface Finish |
Polished, Nitrided, or Coated for wear resistance |
| Tolerance |
Close tolerances up to ±0.005 mm for precision fit |
| Diameter Range |
0.5 mm to 20 mm (custom sizes available) |
| Length Range |
20 mm to 500 mm (customised as per mould design) |
| Designs Available |
Straight Core Pin, Step Core Pin, Taper Core Pin, Custom Core Pin |
| Applications |
Plastic Injection Moulds, Die Casting, Automotive, Electronics, Packaging |
Features of Our Core Pin
As core pin suppliers in Pune, we mean to attention to detail and quality on basis of that we provided benefits which are given below.
- High Heat Resistance: Our core pin is built to handle high temperatures, so they stay stable even under high operating temperatures.
- Dimensional Accuracy: We make our core pin with precise measurements. This ensures they fit perfectly and your moulds run smoothly.
- Durable Construction: We core pin manufacturers in Pune, use premium materials like steel and hot-die steel to make our core pins. This not only makes them incredibly durable but also gives your moulds a lifespan.
- Smooth Surface Finish: Our core pin has polished, smooth surface. It helps the ejection process to be clean and smooth without defects.
- Variety & Flexibility: We offer a wide range of core pin in various sizes, shapes, and coatings. This makes flexibility convenient, and you will find the right pin for any job.
Benefits of Our Manufactured Core Pin
Because we are core pin manufacturers in Pune, manufacturers with precision and durability in mind, our products offer the following benefits-
- Reliable Performance: Our core pin, including both ejector pins and core pins, are built to perform consistently even under a lot of stress. You can count on them for reliable results every time.
- Longer Mould Life: Our core pin suppliers in Pune protect your moulds from wear and tear, which helps them last longer and increases their service life.
- Higher Productivity: Using our steel and hot die steel core pins can help you get more done. They are designed to reduce your production cycle time, so you can increase your output.
- Cost Savings: Our core pin help you save money by cutting down on downtime and reducing waste, which means providing a fruitful return on your investment.
- Custom Options: We make core pin in both standard sizes and custom designs. We have tonnes of ranges as per your choice and specific needs, we can create the right pin for you.
Applications of Our Core Pin
We are not just core pin suppliers in Pune, but also designer of how effectively these pins perform across industries-
- Automotive Industry: We make extraordinary core pin that are strong, heat-resistant, and dimensionally accurate. These exceptional qualities are utilised for critical automotive parts such as dashboards, trims, housings, clips, and engine components.
- Electronics Industry: We manufacture core pin that have high precision and smooth surface finish, making them ideal for sensitive applications such as connectors, sockets, casings, and electronic housings. Even the slightest imperfection can affect performance; hence, our pins are built to deliver consistent accuracy and dependability.
- Medical Devices: Our manufactured core pin are a most capable tool to meet high safety and hygiene standards, with smooth surfaces and precise shaping. These are highly reliant on producing medical parts like syringes, diagnostic instruments, surgical components, and disposable medical products.
- Packaging Industry: We manufacture core pin that are durable, wear-resistant, and capable of supporting high-speed production cycles. They are widely used in creating closures, containers, bottle caps, and packaging accessories, with the surety of a perfect fit and sealing. With our pins, packaging manufacturers achieve higher volumes, consistent shapes, and reduced wastage.
- Consumer Goods: We ejector of core pins make core pin that are great for all kinds of consumer goods. They are built to last; products like toys, kitchenware, household tools, and other everyday products make them durable and have a nice, smooth finish
- Industrial Components: We make core pin and ejector pin built to handle heavy use in tough industrial settings. They are great for things like machinery parts, equipment housings, and gears where strength, wear resistance, and accuracy are a big deal. Our pin help industries keep quality high and maintenance costs low.
N N Engineering is a trusted core pin manufacturers and suppliers in Pune. We are proud to be preferred as manufacturers of precision core pins. As we focus on quality, durability and customization, we are confident that all our core pins will provide similar performance and reliability in any industry. We Ejector & Core Pins, Hot Die Steel Core Pins, Steel Core Pins have merged the best materials, expertise, and customer focus solutions, making us a reliable partner in all your need of moulding solutions.
We’d love to collaborate and provide the perfect core pin solutions for your needs.
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