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The runner of plastic injection mold

The runner of plastic injection mold

1.The runner type 2.Series diameter(mm):2    2.5   3   3.5    4     4.5     5     6      7      8       (10      12 for reference) 3.How to design the runner diameter for different material For PE,PA .etc. we can choose smaller diameter,but for PC,PMMA,we choose bigger diameter. 4. Helpful Tips: (1). For a U-shaped runner, the size of the runner can be […]

The spring for plastic injection mold

The spring for plastic injection mold

Functions of the prings: As one of the widely used elastic parts in molds, the springs are mainly used for the purposes of unloading, material pressing, pushing and ejecting. Based on different loading capacities, springs are marked with five different colors to make it easier to distinguish and select them. The mold spring series Spring […]

The sprue bushing of plastic injection mold

The sprue bushing of plastic injection mold

In plastic injection molding, The sprue bushing is a metal part that links the mold with the injection machine. The sprue can also be described as a part of the runner, which allows the molten plastic material to be injected into the mold through the nozzle of an injection machine.Bolt-type sprue bush is a sprue […]

Injection mold Cooling System(water line) design

Injection mold Cooling System(water line) design

  The Purpose of The Injection Mold Cooling System The design purpose of the cooling system is to ensure uniform cooling, as well as the shortest possible ejection time of the molded products, so as to complete the production process. Cooling design has a direct influence on product quality and molding cycle.   Cooling Location […]

The sliders for plastic injection mold

The sliders for plastic injection mold

Due to the special requirements of some products, the mold release of some part is not consistent with the mold opening direction of the injection machine, which needs the side parting core pulling mechanism to eject the product smoothly. The side parting core pulling mechanism comes with two types: slider(also known as slide) and lifter. […]

O-ring for water line in plastic injection mold?

O-ring for water line in plastic injection mold?

O-ring is a typical extruded seal, of which the main sealing design elements are the compression ratio and elongation of its cross section diameter, since they are of great significance to sealing performance as well as service life. The outstanding sealing effect of O ring largely depends on the accurate matching between the dimensions and […]

What is the ejector block in plastic injection mold?

What is the ejector block in plastic injection mold?

Ejector Block 1) Direct ejection can be in 2 styles: ejector and ejecting block + ejector pin. 2) The ejector is designed with gradients on its four sides: 1°on the side  that clings to the product and 3° on the other three sides. 3) When the core of plastic injection mold is integrated, the distance […]

How much does injection mold cost?

How much does injection mold cost?

For dozens of years, to produce polymer parts, the team of product development has to be reliant on the plastic injection molding process, which is a proven, robust, repeatable and ideal process for the manufacturing of high volume products, but a product development team has to consider the injection mold cost when employing the injection […]

What is nylon lock and their function?

What is nylon lock and their function?

Nylon lock A  Nylon lock are used to lock A plate and B plate before runner are released out from A plate。Standard components :PLB type,the diameter depends on mold base size : When the mold plate is thick, we need to make venting for nylon lock:       All copyright reserved by plastic mold […]

What are ejector sleeves and how they work?

What are ejector sleeves and how they work?

Ejector sleeves 1) The application of ejectors sleeves is required when a product features a hollow pillar structure and a great height. The matching relationship between pillars and sleeves is shown in the diagram below: When a product features a pillar that is equipped with shockproof rubber, the ø3/16” + ø1.7 sleeve should be selected. […]

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