At Dongguan Zanyang Machinery, we have more than 40 years of manufacturing history in vertical injection molding machine production. We focus on insert molding, connector molding, overmolding, and customized industrial applications, with a product philosophy built on stability, precision, and long-term factory reliability.
Long manufacturing history and technical accumulation
Key parts imported from Taiwan
Machine manufacturing and project support
We have accumulated long-termmachine manufacturing experienceand technical understanding acrossdecades of production practice.
Key components and critical machine parts are imported from Taiwan to support stability, consistency, and long-term operation quality.
We manufacture, assemble, inspect, and prepare our machines inside our own factory operation flow rather than relying only on outside presentation.
We support both standard machine supply and customized production projects based on actual product, mold, and process requirements.
We do not position ourselves as a simple machine seller. We are a manufacturing company with more than 40 years of history, and we build our website around real factory strength, long-term production experience, and practical application support.
Our long manufacturing history supports how we design, assemble, and refine vertical injection molding machine solutions.
We present ourselves with a clear product specialization so customers immediately understand what we do best.
We build our machines around insert molding, connector molding, overmolding, and precision industrial production requirements.
We are able to support both regular machine selection and OEM / ODM direction based on actual product and process needs.
For us, machine quality is not only about appearance. It is also about how the internal system performs over time. That is why we place strong emphasis on key parts and adopt Taiwan-imported components for important machine systems.
Taiwan-imported key parts help support more stable long-term machine performance.
Critical systems benefit from more reliable response and operation quality.
Machine behavior becomes more dependable in repeat production environments.
We use component selection as part of our overall machine quality strategy.
We offer a complete range of vertical injection molding machines, each designed for specific production scenarios, ensuring stable performance, efficient operation, and reliable long-term manufacturing support.
We provide standard vertical injection molding machines for daily molding production where stable structure, practical machine use, and reliable factory operation are the main priorities.
Designed for stability and versatility, our four column lifting series delivers reliable performance across a wide range of molding applications.
We manufacture insert molding machine solutions for products involving metal inserts, terminals, pins, connectors, and other molded assemblies that require practical insert positioning.
We have launched a rotary table type machine with dual lower molds, which rotates alternately to take products and swing inserts without taking up molding time
To improve efficiency, we have added Horizontal shooting platform, with adjustable size in frontand back, up and down, suitable for various molds
We have designed this dual seat injection structure to improve work efficiency, with one lower mold and two upper molds, which can be placed on the same plane for both left and right operations
The Skateboard Series vertical injection molding machine is designed for insert molding and stable mass production. Featuring vertical clamping with direct-pressure injection, it is ideal for applications such as metal overmolding, electronic connectors, and automotive components, delivering both precision and efficiency.
The Double Slide Plate Vertical Injection Molding Machine is designed for high-efficiency insert molding and continuous production. With a dual sliding table system, it enables simultaneous loading and molding, making it ideal for applications requiring high output and precision.
The Low Table Turntable Vertical Injection Molding Machine is designed for ergonomic operation and high-efficiency insert molding. With a rotary table system and low-height structure, it improves operator comfort while enabling continuous, stable production for complex insert applications
The C-Type Vertical Ejector Injection Molding Machine is designed for insert molding and precision component production. With its open C-frame structure, it provides easy access to the mold area, making it ideal for applications such as wire harness overmolding and delicate insert parts.
We can customize this special machine for different needs, featuring a flexible injection structure that serves a wide range of industries.
Below are our selected best-selling vertical injection molding machines, widely applied across different industries and manufacturing scenarios.
CY-S2 is a two-column molding machine with compact body and light weight. It adopts vertical opening and closing mold and injection glue to perfectly solve the mosaic injection molding
CLAMP FORCE
TYPICAL USE
BEST FOR
ADVANTAGE
We recommend this model for the production of small and medium-sized precision industrial parts, suitable for mass production of precision plastic parts and small structural components.
Slide-type vertical injection molding machine, suitable for insert molding and precision parts production, improving loading/unloading efficiency and operational safety.
Suitable for insert molding and mass production of precision parts. Multi-station rotary table enhances loading efficiency. Available in various clamping forces: CY-250ST-R, CY-350ST-R, CY-850ST-R.
Discover how our vertical injection molding machines perform across real-world applications and industries.

We support overmolding applications that combine inserts, conductor parts, or pre-assembled components with controlled plastic molding.

Custom cable overmolding and injection molding solutions for connectors, electrical parts, and integrated plastic components in industrial applications.

We use our vertical injection molding machines for connector molding and terminal-related production where insert placement, precision structure, and stable repeat molding are all important.

Precision injection molding solutions for automotive interior and exterior plastic parts, ensuring stable quality, accurate fit, and efficient mass production.

We also apply our machines to Medical device products where dimensional stability and process consistency are required.

Colorful and practical plastic products including connectors, toys, and personal care items, designed for durability and everyday applications.
Our vertical injection molding machines are backed by real factory operations, including in-house assembly, strict quality inspection, and standardized production processes. This ensures stable performance, reliable delivery, and consistent product quality.
Understand the internal structure and how key components are connected, providing a clear view of the machine’s design and operation.
Clean and tidy production workshop→
Organized storage supports efficient production and reliable material preparation。
Neat & orderly industrial warehouse environment; lean production management criteria.
These certifications represent how we manage quality, production, and compliance within our factory. They ensure that our vertical injection molding machines meet international standards and deliver consistent, reliable performance.
The following feedback comes from our partners based on real project experience and cooperation.
The discussion was practical and focused on real production, not just sales. Their team understood our product structure and gave suggestions that matched our actual manufacturing needs.
Industrial Buyer
Machine Selection · Technical Support · Production Discussion
The machines have been running consistently in our factory. The overall build quality and component configuration give us confidence for long-term use and stable production.
OEM Customer
Stable Running · Taiwan Components · Long-Term Use
We needed more than just a quotation. Their team understood our production requirements and helped us move forward with a clearer and more efficient project plan.
Overseas Buyer
Custom Solution · Project Discussion · Faster Evaluation
Through our blog, we share practical knowledge about vertical injection molding machines, real application scenarios, machine selection ideas, and manufacturing experience.
Learn how vertical injection molding machines are structured, how they operate, and why they are ideal for insert molding and precision production.
Learn how insert type, product structure, and production requirements affect machine selection, helping you choose the right solution for your project.
See how key components affect machine stability, precision, and long-term reliability in real production environments.
Our FAQ section helps partner better understand machine selection, customization options, production lead time, inspection standards, and after-sales support. We focus on practical questions that matter during real purchasing decisions.
We keep this section focused on useful manufacturing questions. That helps our website feel more trustworthy, more professional, and more relevant to serious inquiries.
Choose the right machine based on your product and molding process
Understand customization options for different production needs
Know what support you can expect before shipment and after delivery
The right machine depends on product size, material, insert structure, injection volume, clamping force, and production needs. We can recommend a suitable model based on your application.
We usually need product size, material, weight, insert details, cavity quantity, expected output, and any special molding requirements. Drawings or sample photos help us recommend more accurately.
Yes. We provide custom solutions for insert molding, rotary table applications, sliding table structures, multi-station production, and other special molding requirements.
Machine price depends on machine size, clamping force, injection capacity, configuration, control system, and customization level. We provide quotations based on actual production needs.
Yes. Every machine is tested before shipment to confirm stable operation, function response, and production readiness. Customized machines are also checked according to required functions.
We provide installation guidance, operation support, troubleshooting assistance, technical communication, and spare parts service to help customers maintain stable production.
Share your product, insert structure, material, target output, and process expectations. We will help you move toward a machine solution that fits real production requirements.
• We support machine selection from a factory point of view.
• We support both standard machine inquiries and OEM / ODM projects.
• We use this section to turn technical interest into direct communication.
For all inquiries, please feel free to reach out at:
For all inquiries, please feel free to reach out at: