Dongguan Dong Zheng Blowing Products Co., Ltd. is a professional manufacturer engaged in blow molding, injection molding, mold development and production, as well as processing. We always adhere to the business philosophy of survival through quality and development through integrity, providing excellent service to our new and old customers. Our main products include various containers, sports water bottles, oil cans, bubble bottles, toys like Christmas balls, beach balls, golf balls, plush toys, and more. Customers can place orders for custom designs or processing with supplied materials. The raw materials for our product processing and production include PE, PP, ABS, 475, PVC, PET, PC, and PETG. Our products are of high quality, precision, and reasonable pricing, earning the trust of both new and old customers. We are committed to honesty, trustworthiness, and continuous improvement.
Introduction to the Selection of Blowing Molding Dies
Don't solely focus on product design, neglecting the plastic mold manufacturing.
Some users, when developing products or new product prototypes, often only focus on product research and development at the initial stage, neglecting communication with plastic mold manufacturers. There are two benefits to contacting mold manufacturers early after the preliminary design of the product is determined:
1. We guarantee the products' good forming process, ensuring the design is not altered due to difficulties in part processing.
2. Mold manufacturers can prepare the design in advance to prevent hasty considerations that may affect the project timeline.
3. To produce high-quality plastic molds, close collaboration between both the supplier and the buyer is essential for cost reduction and shortened production cycles.
Don't just focus on price; consider quality, lead time, and service from multiple angles.
1. There are many types of molds, which can be roughly divided into ten categories. Selection of different mold types for forming is based on various requirements such as part material, physical and chemical properties, mechanical strength, dimensional accuracy, surface finish, service life, and cost-effectiveness.
2. High-precision molds require machining on high-precision CNC machines, and there are strict requirements for the mold material and forming process. CAD/CAE/CAM mold technology must also be used for design and analysis.
3. Some parts require special molding requirements, necessitating advanced techniques such as hot runner molds, gas-assisted molding, nitrogen cylinders, etc.
4. Manufacturers should possess CNC machines, electrical discharge machining (EDM) equipment, wire-cutting machines, CNC profiling milling machines, high-precision grinding machines, high-precision three-axis measuring instruments, computer-aided design (CAD) and related software.
5. For general large-scale stamping molds (such as automotive cover molds), consider whether the machine tool has a blanking edge mechanism, as well as edge lubricant, multi-position progressive feeding, etc. In addition to the stamping tonnage, also consider the number of strokes, feeding device, machine tool, and mold protection device.
6. The manufacturing methods and techniques for the above molds are not possessed or mastered by every company. When selecting a collaborating manufacturer, it's crucial to understand their processing capabilities, not just the hardware equipment, but also their management level, processing experience, and technical strength.
7. There can be significant price differences for the same mold from different manufacturers. You shouldn't pay more than the mold's value, nor should you pay less than its cost. Mold manufacturers, like you, need to achieve a reasonable profit in their business. Ordering a mold with a much lower price quote can be the start of trouble. Users must assess based on their own requirements.
Avoid multiple collaborations and strive for a one-stop service in plastic mold making and product processing.
1. Having a qualified mold (sample meets specifications) doesn't guarantee the production of batch-qualified products. This primarily relates to the selection of processing machinery for parts, forming processes (forming temperature, time, etc.), and the technical qualifications of the operator.
2. With a good mold, you also need excellent forming processing. It's best to have a seamless collaboration, avoiding multiple parties working together. If conditions aren't met, choose one party to be responsible, and make sure to clearly state this in the contract.
