Dongguan Dongzheng Blow Molding Co., Ltd. is a professional company engaged in blow molding, injection molding, mold development and production, as well as processing. We always adhere to the business philosophy of "quality for survival, integrity for development," 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, etc. Customers can place orders based on their own designs or supply materials for processing. The raw materials used in our product processing and production include PE, PP, ABS, 475, PVC, PET, PC, and PETG. Our products are known for their high quality, precision, and reasonable pricing, earning the trust of new and old customers. We believe in honesty, integrity, and continuous improvement.

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 development or trial production of new products, often focus solely 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 have excellent forming techniques and the design will not be altered due to the difficulty in processing parts.
2. Molding manufacturers can prepare the design in advance to prevent rushed consideration and affect the project timeline.
3. To produce high-quality plastic molds, close collaboration between both supply and demand parties is essential for cost reduction and cycle shortening.

Don't just focus on price; consider quality, timelines, and service from multiple angles.
1. There are many types of molds, which can be roughly divided into ten categories. Different mold forming types are selected 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 mold material and forming processes. CAD/CAE/CAM mold technology is also needed for design and analysis.
3. Some parts require specialized molding requirements, necessitating advanced techniques such as hot runner molds, gas-assisted molding, nitrogen cylinders, etc.
4. Manufacturers should have CNC machines, EDM, wire-cutting machines, CNC profiling milling equipment, high-precision grinding machines, high-precision three-axis measuring instruments, computer-aided design, and related software.
5. For general large stamping molds (such as car cover molds), consider whether the machine tool has a blanking edge mechanism, even edge lubricants, and multi-position progressive operations. Besides the stamping tonnage, also take into account 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 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 variations for the same mold from different manufacturers. You should not pay more than the mold's value nor less than its cost. Mold manufacturers, like you, need to earn a reasonable profit in business. Ordering a mold with a much lower price quote can lead to trouble. Users must evaluate 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 meets standards) does not guarantee the production of a batch of qualified products. This mainly depends on the selection of machine tools for parts processing, forming processes (forming temperature, forming time, etc.), and the operator's technical qualifications.
2. With a good mold, there also needs to be excellent forming processing, with a seamless one-stop collaboration to minimize multiple-party involvement. If the conditions aren't met, choose one party to take responsibility, and ensure it's clearly stated in the contract.