A reliable plastic tool supplier
Capable for overmolding, unscrewing injection molding, 2K injection molding, IMD injection molding, micro injection molding, cleanroom injection molding
Plastic injection mold engineering & design solution provider – TONGDA LINK
Innovative Solutions for Plastic Injection Mold Manufacturing
As a trusted plastic injection mold manufacturer and injection molding supplier for leading plastic product OEMs, TONGDA LINK is committed to delivering exceptional quality and productivity in custom mold and product manufacturing.
Our rigorous dedication to engineering enables us to:
- Optimize plastic mold and product design.
- Enhance plastic tool production efficiency.
- Address injection molding challenges and resolve product compatibility issues.
TONGDA LINK MOLD is well organized to help solve clients’ plastic mold engineering-intensive problems. The company, with over 60 staff members, embraces best-in-practice mold manufacturing technologies, quality management systems, and training programs. TONGDA LINK utilizes state-of-the-art CNC machining equipment, advanced mold design methodologies, and precision injection mold manufacturing performance to help clients complete custom mold projects flawlessly.
The engineering and design team at TONGDA LINK provides plastic injection molds, tooling prototypes, and methodologies for mechanical products and the creation of industrial systems. They assist clients with custom mold manufacturing of precision plastic components and metal components. Their services include product design, CAD/CAM mold design, plastic part and mold 2D and 3D drawings, DFM (Design for Manufacturing) analysis, mold flow analysis, mold cavity design, fixture design, prototyping, testing, assembly, and function improvements. TONGDA LINK excels in plastic mold engineering, injection molding production, and mold maintenance and repair services.
The most commonly used software by TONGDA LINK’s engineering team includes AutoCAD, Pro/E, Unigraphics NX, CATIA, and SolidWorks. They can also work with Alias, Rhino, and CAXA files, ensuring compatibility for a wide range of mold design and manufacturing projects.
Plastic mold engineering design
TONGDA LINK’s engineering team is exceptionally skilled, providing innovative solutions to tackle and resolve plastic mold design, tooling production, and injection mold manufacturing challenges for clients in virtually any scenario.
TONGDA LINK mold engineering team has 8 members, mainly responsible for product structure design, mold design, fixture design and engineering. The main software we use are UG, Pro/Engineer, AutoCAD, Cimatron, PowerMill Hypermill, Solidworks, WORKNC, Solid Edge, CATIA, etc.
For over 16 years, TONGDA LINK has designed about 10K plastic molds and products, we has rich experience in the design and manufacture of plastic products.
Mold design plays a pivotal role in the plastic mold manufacturing process, directly impacting the quality of the plastic tool, injection molding lifespan, and overall production costs. At TONGDA LINK, we leverage advanced mold design software to optimize mold functionality, minimize component count, enhance injection molding stability, and significantly reduce manufacturing expenses.
With a highly experienced mold design team—80% of whom boast nearly a decade of expertise—we deliver consistently reliable quality, ensuring precision and efficiency in every project.
Engineering and design
TONGDA LINK designs molds according to international standards, and our engineers and designers follow an orderly routine in mold engineering. This practice is essential for a good quality mold, and the checklists below assist our engineers in the procedure.
Mold design general check list
| okay | no need | comments | checked by | ||
| A) Mold assembly | |||||
| 01) mold attachment (distance between tie bars) | |||||
| 02) insulation plates | |||||
| 03) mount mold on injection machine (total, cavity and core side separate) | |||||
| 04) locating ring cavity and core side (Ø) | |||||
| 05) guide pillar longer than inserts | |||||
| 06) enough support pillar for B plate | |||||
| 07) machine: opening width, enough movement ejector package possible | |||||
| 08) mold marking | |||||
| 09) TONGDA LINK mold label | |||||
| 10) how much cavities are ordered | |||||
| 11) are all plates (mold base) strong enough | |||||
| 12) nib off areas for easier disassembling | |||||
| 13) other | |||||
| B) mold function / ejection | |||||
| 01) ejector rod according to mold specification | |||||
| 02) ejector package guidance according to mold specification | |||||
| 03) limit switch | |||||
| 04) mounting threads on all plates from all sides | |||||
| 05) is ejection ensured | |||||
| 06) is ejection of sprue ensured | |||||
| 07) parts or sprue should not get stuck | |||||
| 08) no ejection marks allowed | |||||
| 09) take out sprue by robot ensured | |||||
| 10) undercut for sprue | |||||
| 11) return pin | |||||
| 12) ejector close to sub gate | |||||
| 13) ejector package: are enough screws | |||||
| 14) lifting bar with complete marking (project number, mold number, weight) | |||||
| 15) shot counter | |||||
| 16) thermocouple CAS and COS HASCO H1295/3/8 | |||||
| 17) In case of risk of damaging the part Provide sprue delayed sprue ejectors |
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| 18) mould is running grease/oil- free | |||||
| 19) bill of material (BOM) including hardness | |||||
Visit TONGDA LINK blog to get a complete mold design check list.
The main work of the TONGDA LINK mold engineering team is as follows:
1 Drawing UG/ProE/SOLIDWORKS to complete mold design and manufacturing applications;
2 Drawing CAD/SOLIDWORKS to complete the mold assembly drawing & part drawing;
3 Complete the mold design and get approval, make prototyping & 2D drawing of the product;
4 Design mold structure and components, complete the machining processing;
5 Arrange injection molding trial and inspect mold samples;
6 Identify plastic materials and characteristics to observe the working performance of the mold;
7 Improve molds and solve injection molding problems through product appearance and mold performance;
8 Make molds according to the plastic mold standard SPI-SPE to ensure mold life;
9 Reasonable selection of injection molding machine to detect mold operating parameters, and improve mold performance;
10 Reasonable selection of mold steel to ensure mold lifetime and achieve product appearance requirements;
11 Reasonably control the cost of molds and increase profits for clients;
12 Strictly follow the mold manufacturing process and know well about the project progress;
13 Know well about the mold processing technology and control the mold processing quality;
14 Know well about the mold texture technology and meet the clients’ texture requirements of plastic products;
15 Know well about the mathematical calculation, practical function calculation, reasonable design of mold size;
16 Provide secondary processing services for products and choose processing methods reasonably to meet clients` product appearance requirements;
17 CMM plastic molded parts/mold components, control injection molded parts dimensions are within clients` tolerance;
18 Full inspection of molds, sorting out all engineering drawings & data for packaging and shipment of the plastic toolings.
Make New Things Possible
TONGDA LINK’s mold engineering team specializes in providing innovative solutions for custom mold manufacturing, covering a wide range of services including mold component design, assembly layout design, product mechanical design, plastic tool manufacturing plans, mold layout, CAD/CAM mold design, CNC machining, and prototyping services.
Our engineers are experts in mold structure design and have extensive knowledge of the physical properties of engineering plastic materials. We ensure precise mold designs and optimal mold steel selection to support the technical development of new products. TONGDA LINK is equipped to tackle technology challenges in plastic mold manufacturing, such as enhancing molding efficiency, improving plastic part performance, and addressing issues in mechanical production processes.
With a focus on precision, innovation, and reliability, TONGDA LINK helps bring your most ambitious projects to life.
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Versatile and cost-effective, TONGDA LINK plastic mold engineering offers the following key benefits and challenges:
Benefits
- Optimize product structure in advance
- Optimize plastic mold layout to extend mold lifetime
- Avoid molding defects in advance
- Precision production
- Lower manufacturing and assembly cost
Challenges
- Product design needs to consider whether it can be produced by injection molding
- Injection molded plastic parts have limit appearance
- Product development need a rapid prototyping to check its structure
- More assembly takes higher labor cost
Plastic injection molding applications
Plastic mold engineering involves a manufacturer working with customers to understand their specific technical requirements and ensuring that its product meets them. TONGDA LINK support customers from functional prototypes to full production runs, plastic injection molding’s key industrial applications include:
Consumer electronics
TV, VCR, Camcorders, Integrated Audio, Record Players, Telephones, Personal Computers, Home Office Equipment, Home Electronic Healthcare Equipment, Automotive Electronics, Digital Cameras, Wireless data communication devices, Video game devices, Smart watches, Drones, VR gaming equipment, etc.
Automotive products
Car bumpers, instrument panels, engine parts, water tank cover, air conditioning accessories, air filter parts, sunroof, steering wheel cover, car interior parts, rearview mirrors, buckles and fixing parts, lamp housing, automotive grilles, rear view mirrors, instrument panel body frame, battery brackets, electric control boxes
Medical products
Medical device, ventilator parts, medical tips, medical centrifuge tubes, medical manifolds, medical stopcocks, medical luer connetors & caps, applicator parts, syringes, PET vacuum blood tubes, laboratory device & equipment, testing instruments, life science products, massager, health care device, beauty device, etc.
Bathroom products
Faucet accessories, bathroom showers, toilets cover, bathroom equipment, bathroom appliances, sanitary ware accessories, hand dryers, hair dryers, trays, plastic storage box, storage shelves, makeup organizer, toilet tissue roll holder, paper dispenser, soap dispenser, pump, LED mirror accessories.
Security products
Cameras, shooting lenses, network video recorders (NVR), hard disk video recorders (DVR), terminal monitoring equipment, optical transceivers, infrared detectors, alarms, electronic fences, emergency alarm buttons, control equipment, anti-theft security doors and intercom systems
Aerospace products
Aircraft and spaceship cabins, door handles, joysticks, helicopter fins, aircraft interiors plastic parts, fairings, engines parts, plastic seals, seats accessories, instrument panels, lighting, turbines, gears, bearings, impellers, blades, nuts , shuttle, sleeve, sleeve connector, etc.
Military parts
There are a lot of plastic injection molded parts and products in military industry. Such as plastic components for military communication equipment, radar system equipment, plastic radar cover, military equipment parts, rescue equipment, portable survival equipment, etc.
Small kitchen appliances
Coffee Maker, Rice Cooker, Electric Pressure Cooker, Oven, Microwave, Fruit and Vegetable Washer, Dishwasher, Egg Steamer, Milk Maker, Juicer, Electric Kettle, Water Heater, Sterilizer, Toaster, Refrigerator, Sandwich Oven, beverage Dispenser, etc.
Explore plastic mold engineering & design and new technology updates
Find new technology news, resources, insight into plastic mold engineering & design, and more on the TONGDA LINK Blog:
TONGDA LINK Manufacturing Capabilities
At TONGDA LINK, we are your premier partner for comprehensive plastic injection mold engineering, design, and manufacturing solutions. With a commitment to excellence and innovation, we specialize in delivering high-quality molds tailored to meet the unique demands of various industries.