Dongguan Dong Zheng Blowing Products Co., Ltd. is a professional manufacturer specializing in blowing molding, injection molding, mold development and production, as well as processing. We always adhere to the business philosophy of surviving on quality and thriving on integrity, providing excellent service to both 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 custom orders or provide materials for processing. 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 honest, trustworthy, and strive for excellence.

Introduction to the Selection of Blowing Molding Dies

Don't solely focus on product design and neglect the plastic mold manufacturing.
Many users, during the product development or trial production of new products, 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 as soon as the preliminary design of the product is determined:
1. We guarantee that the designed products have excellent forming techniques and the design will not be altered due to difficulty in part processing.
2. Mold manufacturers can make design preparations in advance to prevent hasty consideration and impact on the project timeline.
3. Produce high-quality plastic molds; only through close cooperation between both parties can costs be reduced and the cycle shortened.

Don't just focus on price; consider quality, timeline, and service from multiple angles.
1. There are many types of molds, which can be roughly divided into ten categories. Different mold types are selected for forming based on various requirements such as material of the parts, physical and chemical properties, mechanical strength, dimensional accuracy, surface finish, service life, and cost-effectiveness.
2. High-precision molds require processing on high-precision CNC machines, and there are strict requirements for mold materials and forming processes. CAD/CAE/CAM mold technology is also necessary for design and analysis.
3. Some parts require special molding requirements and thus necessitate advanced techniques such as hot runner molds, gas-assisted molding, nitrogen cylinders, etc.
4. Manufacturers should be equipped with CNC machines, electrical discharge machining (EDM) machines, wire-cutting machines, CNC profile milling equipment, high-precision grinding machines, high-precision 3-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 lubricants, multi-position progressive feeding, etc. In addition to the stamping tonnage, also consider the number of strokes, feeding device, machine tool, and mold protection devices.
6. The manufacturing methods and processes for the aforementioned molds are not possessed or mastered by every company. When selecting a collaborating manufacturer, it is essential to understand its processing capabilities, not only in terms of hardware equipment but also by combining management levels, 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 less than its cost. Mold manufacturers, like you, need to make a reasonable profit in their business. Ordering a mold with a much lower price can be the start of trouble. Users must assess based on their own requirements.

Avoid multiple collaborations and strive for a one-stop service for plastic mold making and product processing.
1. Having a qualified mold (sample is qualified) does not guarantee the production of a batch of qualified products. This primarily depends on the selection of processing machines for the parts, the forming process (forming temperature, forming time, etc.), and the technical qualifications of the operator.
2. With a good mold, good forming processing is also essential; it's all about seamless collaboration, avoiding multiple parties as much as possible. If the conditions aren't met, select one party to be responsible, and be sure to specify it clearly in the contract.