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 surviving on quality and thriving on 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, ocean 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 committed to honesty, trustworthiness, 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 product development or trial production of new products, often only focus on the research and development of the product 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:
We guarantee that the designed products have excellent forming processes and the final design will not be altered due to difficulty in processing parts.
2. Mold manufacturers can prepare the design in advance to avoid hasty considerations that may affect the project timeline.
3. To produce high-quality plastic molds, close collaboration between both parties is essential to reduce costs and shorten lead times.

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. 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 materials and forming processes. CAD/CAE/CAM mold technology is also needed 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, EDM, wire-cutting machines, and CNC profile milling equipment, high-precision grinding machines, high-precision three-axis measuring instruments, computer design and related software.
5. For general large-scale stamping molds (such as automotive cover molds), consider whether the machine tool has a pressing edge mechanism, as well as side lubricant and multi-position progressive feeding, etc. Besides the stamping tonnage, also consider the stroke, feeding device, machine tool, and mold protection device.
6. The manufacturing methods and processes for the aforementioned molds are not possessed or mastered by every company. When selecting a collaborative 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 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 achieve a reasonable profit in their business. Ordering a mold with a much lower price can be the start of trouble. Users must weigh their own requirements.

Avoid multiple collaborations; strive for a one-stop service from plastic mold making to product processing.
1. Having a qualified mold (sample qualified) doesn't necessarily guarantee the production of bulk qualified products. This primarily relates to the selection of machine tools for part processing, forming processes (forming temperature, forming time, etc.), and the operator's technical qualifications.
2. With a good mold, good forming processing is also essential; it should be a seamless collaboration, avoiding multiple parties as much as possible. If the conditions are not met, select one party to be responsible, and make sure to specify this clearly in the contract.