Products

Precision manufacturing for the die-casting industry in Vietnam and worldwide

CORE PIN

👉 Core pins play a crucial role in die-casting molds for the automotive industry. As the automotive sector evolves daily, Dynamo Vietnam also advances with its unique production system and high-precision technology, simultaneously supplying products to numerous customers worldwide.

👉 We meet stringent customer requirements in accordance with global standards. We consistently guarantee high quality, low costs, and fast delivery.

KEY ADVANTAGE

👉 Our most outstanding strength is the ability to produce core pins with internal cooling channels. We can machine round water holes with diameters from Ø1.5mm, Ø1.8mm, Ø2mm, Ø2.5mm, Ø3mm, Ø3.5mm, and larger.

👉 Dynamo Vietnam operates 12 gun drilling machines at our factory, enabling us to produce over 20,000 core pins with cooling holes each month. All products are guaranteed for quality, particularly in terms of concentricity, which helps to extend the core pin’s lifespan.

OUR STRENGTHS 

Our Premium Materials

☑️ Dynamo Vietnam uses materials from world-renowned steel manufacturers for processing products for our customers, as we understand that product quality is always intrinsically linked to the quality of the raw steel. Furthermore, we have the capability to accommodate various special materials according to customer requirements.

🤝 PROTERIAL (Hitachi): DAC, DAC-Magic, DAC-i, DAC-X, DAC10, FDAC, YXR33, SLD, SLD-Magic, HPM38, HPM77,…

🤝 DAIDO STEEL: DHA1, DHA-WORK, DH31-EX, DH2F, DHA-THERMO, DC11, DC53, S-STAR, NAK80, NAK55, PXA30,…

🤝 ASSAB: DIEVAR, FORMVAR, QRO 90 SUPREME, STAVAX, ASSAB 8407, ASSAB 2083,…

🤝 Others: SKD61, SKD11, SUS303, SUS304, S45C, S50C, SS400, SCM440, BRASS, COPPER, ALUMINIUM, SUS304 PIPE, COPPER PIPE,…

Heat Treatment According to Japanese Standards

☑️ Heat treatment is an extremely vital step in core pin production. After the heat treatment process, core pins achieve higher hardness, better wear resistance, and simultaneously enhanced heat resistance and stability when used in the harsh working environment of hot die casting molds. Understanding this critical aspect, we always select reputable, reliable, and high-quality partners to perform the heat treatment process in accordance with Japanese standards.

Diverse Coatings 

☑️ Each core pin will undergo different surface treatments or coatings to meet specific requirements regarding polish (finish), lifespan, or wear resistance. Dynamo offers a wide variety of coatings based on customer requests, ensuring superior coating quality.

COATING LIST

Advanced Equipment and Diverse Production

⭐ High Precision: We achieve high precision through modern machinery, measuring equipment, and quality inspection processes adhering to Japanese standards. We utilize grinding machines, CNC milling, CNC turning, and 3D CMM (Coordinate Measuring Machines).

⭐ Diverse Sizes and Shapes: We are capable of machining various types of Core Pins with a minimum diameter of Ø1mm up to a maximum diameter of Ø320mm, and a maximum length of L=700mm. We are also ready to accept all requests, including single-piece orders.

QUALITY

👉 We utilize an ultrasonic testing machine to inspect the thickness and concentricity of internal holes relative to their outer diameter.

👉 We use an endoscope (borescope) to examine the internal finish of drilled holes. The minimum size for inspection is Ø2mm.

👉 We employ a product gloss meter (or surface roughness tester) to ensure the products meet the most stringent finish requirements.

👉 Before delivery, 100% of our products undergo comprehensive inspection, ensuring that no defective products reach our customers.

INSERT PRODUCTION

👉 Dynamo Vietnam boasts over 10 years of experience in manufacturing various types of inserts for die-casting molds. We possess the capability to produce highly complex 3D-profiled parts, including thin-walled components with deep, small-diameter water channels (e.g., from Φ3mm x L=500mm) without any difficulty. We can also meet various thread standards, including NPT, BSP, M, and UNF,…

👉 At our factory, we operate over 70 modern CNC Machining Centers from reputable Japanese brands dedicated to insert production.

3D & REVERSE ENGINEERING

👉 We accept most 3D file formats from customers, including IGES, STEP, Parasolid, NX, CATIA, and more. We also provide 2D to 3D conversion services and vice versa, as well as custom drawing services upon request.

👉 For products that do not have 3D files, we offer reverse engineering services to generate 3D files from physical samples in various formats.

CAD/CAM

👉 We meticulously process and quickly validate input data, utilizing powerful and optimized software such as CAMTOOL, HYPERMILL, and VISI for efficient machining programming.

PRECISION MACHINING

👉 Our technical team receives specifications and establishes optimized machining processes based on the factory’s equipment and machinery.

👉 We maintain a strictly managed tooling system that enables diverse and highly efficient machining capabilities. Our smallest end mill diameter, even after heat treatment, goes down to Φ0.5mm.

👉 Our machining centers operate at speeds up to 20,000 RPM. Alongside these, our Wire-EDM, Sinker-EDM, and grinding machines work together to execute processes with high precision and efficiency.

👉 Following machining, products undergo a careful and meticulous polishing process, which can achieve a mirror-like finish. This, combined with surface treatment, significantly improves surface roughness.

QUALITY CONTROL

👉 All products are inspected on CMM (Coordinate Measuring Machines) based on the 3D files provided by the customer. We also offer quality inspection solutions using the ATOS non-contact measurement method.

👉 Currently, we possess 06 CMM machines and 01 ATOS system, along with various other measuring devices and inspection gauges from renowned brands such as Mitutoyo, OSG, and more.

MOLDS

👉 We manufacture a wide range of die-casting molds, with capabilities extending up to 800 tons 💡. The precision of our molds meets dimensional requirements down to the micrometer level.
👉 All our mold products are managed under a comprehensive system, from design through production to completion.
👉 Thanks to the high quality, precision, and perfection of our molds, we can meet diverse needs and have earned high praise from numerous customers both domestically and internationally, especially from our Japanese clients.

A Die-casting Mold Design requires:
👉 Product Type:
The size, shape, and complexity of the product will influence the mold design.
👉 Casting Alloy:
The type of casting alloy used will affect the melting temperature, fluidity (or castability), and other characteristics relevant to the mold.
👉 Die-Casting Machine:
The size and capabilities of the die-casting machine will impact the mold design.
👉 Mold Material:
The mold material must be able to withstand high temperatures and high pressure.

MOLD DESIGN

Our design steps receive and define information meticulously:
👉 Design requirements: Including identifying the product type, casting material, dimensions and tolerances, and the quantity of products to be cast.
👉 Mold system design: Involving designing the molten material gating system into the mold, the cooling system, and the product ejection system from the mold.
👉 Simulation software: Analysis and simulation using specialized software to ensure the mold is designed accurately and efficiently.

🧑‍🔬 HIGH-LEVEL CAPACITY & EXPERTISE

🤝 With a passionate and well-trained team, coupled with design consultation from Nihonseiki 🇯🇵 – a leading mold design and manufacturing company in Japan – we can comprehensively meet our customers’ mold design and manufacturing needs.

MANUFACTURING

Both domestic and international customers highly regard molds manufactured at Dynamo Vietnam due to several key factors:
👉 Utilization of high-grade materials from world-renowned steel manufacturers. 👉 High-precision CNC machining systems.
👉 Highly skilled and experienced production staff who are thoroughly trained.
👉 Application of the most modern CAD/CAM software to generate machining programs for CNC machines.
👉 Post-machining inspection using 3D CMM (Coordinate Measuring Machines). 👉 Before delivery to the customer, the completed mold undergoes trial product molding at our factory.
👉 Once the customer approves the trial molded products, the mold undergoes surface treatment to extend its lifespan.

MOLD MAINTENANCE

👉 Expert Maintenance Team
Highly skilled technicians trained by Japanese experts ensure fast and accurate fault diagnosis and restoration.

👉 Fast Mold Repair & Replacement
In-house mold component manufacturing and CMM measurement enable precise repair and the shortest turnaround time.

👉 Quick Maintenance Without Disassembly
Minor maintenance can be performed without mold disassembly, significantly reducing downtime.

GATING SYSTEM FOR MOLTEN MATERIALS

The gating system is the pathway for molten aluminum alloy to flow into the mold. Its position and form significantly impact product quality. An optimized gating system design can minimize issues such as turbulent flow and air entrapment, resulting in high-quality products. When designing the gating system, it’s essential to consider the product’s shape and dimensions, the capabilities of the die-casting machine, and other related factors..

🌟 Dynamo Vietnam has many years of experience in producing gating systems, optimizing costs, and ensuring fast delivery times.

MOLD COOLING CHANNELS

👉 Cooling the mold and components within die-casting molds plays an extremely critical role. There has been a significant surge in the use of cooling channels in molds. Mold cooling is now very common and its adoption increases annually.

👉 To meet this growing demand, we have developed lines of mold cooling components with superior designs that customers can choose according to the standards we recommend. Furthermore, we are fully capable of meeting customers’ specific requirements.

DYNACOOL

👉 A product line of cooling components designed and manufactured by Dynamo itself, offering customers the flexibility to choose the right products for their specific needs.

LINER

👉 Protects the water channels of the main component from rust/corrosion and leakage caused by cracks in the main component. We recommend a standard liner thickness of 1.0mm for optimal cooling. However, we can also accommodate thicknesses down to 0.5mm based on customer requirements.

COOLING TUBES

👉 Currently, Dynamo produces various types of cooling tubes, typically made from stainless steel. However, we can also manufacture them using a variety of other materials, such as Copper (Cu), Brass, and different grades of Stainless Steel (SUS), … depending on our customers’ specific requirements.

   

“We utilize brazing technology and processes to manufacture our cooling tubes. This automated brazing system was developed by Dynamo. It effectively eliminates leakage with high efficiency and low cost.”

HARD LOCK

👉 Secure and reliable! The ultimate version of a locking screw! From industrial machinery to molds, our hard-locking screws meet a wide range of different needs. The hard-locking screw is a crucial fastening component designed to securely tighten molds, providing enhanced safety across various industrial sectors.

See the HARDLOCK Size Chart